The spacecraft descended on a parachute, then during the final seconds before landing, the final landing system was a tether and rope!
2. A parachute was usedWhat is MSL?Mars Science Laboratory is a designation of a NASA space probe, launched on November 26, 2011, carrying inside a robot named Curiosity, a rover similar to the Spirit and Opportunity vehicles, used in the Mars Exploration Rover space mission for the planet exploration.
To solve the problem, engineers designed the kit to cut the parachute and use rockets for the final part of the landing sequence. About 60 feet (18 m) above the surface, the MSL's "sky crane" was deployed. The landing assembly hung the rover below the rockets using a 6 m rope.
With this information, we can conclude that A parachute was used to overcome the problem of the MSL landing
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Strong epidemiologic evidence that cigarette smoking was a major case of heart disease existed long before there was any biological evidence. True or false
Answer:
Strong epidemiologic evidence that cigarette smoking was a major case of heart disease existed long before there was any biological evidence is true.
Explanation:
According to a report which was presented in 2014 on cigarettes and health, smoking is a significant factor in cardiovascular disease (CVD), also it accounts for around one in four fatalities due to CVD. CVD is the most common kind of over 800,000 individuals die from this cause in the US every year. Heart disease affects more than 16 million people in the US. Nearly 8 million people used to have a stroke, while 7 million people suffered a heart attack. Smokers who consume less than five cigarettes per day may still display signs of earliest CVD The more cigarettes smoked, the higher the risk of CVD. daily and for an extended period of time. having a cigarette with reduced amounts of tar or nicotine did not lower the risk for cardiovascular disease.
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The medical terms for red blood cells, white blood cells, and platelets, in that order are?
Answer:
erythrocytes, leukocytes, and thrombocytes
Explanation:
erythrocytes, leukocytes, and thrombocytes
The collagen-rich ________ limits expansion of the nucleus pulposus when the spine is compressed.
The collagen-rich annulus fibrosus limits expansion of the nucleus pulposus when the spine is compressed.
Annulus fibrosus is the tough cartilaginous tissue that surrounds the sift nucleus pulposus. These two structures together form the intervertebral disc. It is responsible for the stability of the spine during rotation. The toughness of the annulus fibrosus is due to the collagen fibers.
Spine is the backbone present in the vertebrates. In humans it is formed of 5 different types of bones that are total 33 in number. The spine in necessary to maintain the posture of the body and keep it erect. It begins from the base of the skull and extends till the hipbone.
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How do the winds and the ocean distribute heat throughout the biosphere?
a. living planet
b. water bodies
c. landforms
One way that the world’s ocean affects weather and climate is by playing an important role in keeping our planet warm. The majority of radiation from the Sun is absorbed by the ocean, particularly in tropical waters around the equator, where the ocean acts like a massive, heat-retaining solar panel. Land areas also absorb some sunlight, and the atmosphere helps to retain heat that would otherwise quickly radiate into space after sunset.
When water molecules are heated, they exchange freely with the air in a process called evaporation. Ocean water is constantly evaporating, increasing the temperature and humidity of the surrounding air to form rain and storms that are then carried by trade winds.
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How did charles darwin's ideas with regard to natural selection differ from those of french biologist jean baptiste lamarck?
According to Charles Darwin's theory of natural selection, only those individual are able to survive that adapt better to the changing environment and are able to reproduce. Whereas according to Lamarck, the characters that an individual gains during its lifetime are passed on to its further generations.
Natural selection is the phenomenon that states that only those individuals area able to survive in the environment that adapt better to the changing surroundings and are successfully able to reproduce. The theory was out forward by Charles Darwin.
Characters are the traits that may be phenotypically visible or present at the genetic level. These characters define an individual.
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Science is the investigation of the ______________ ________________. Biology is the branch of science that studies ___________ _______________ and the environments they live in.
The science is the investigation of phenomenan and biology is a branch that studies ecosystem and living entities.
Science is the subject that deals with the reasons behind the phenomenon happening in the world like the interactions between the biotic and abiotic factors and abiotic phenomena like earthquake, tsunami, volcanoes , and also find the reasons behind the formation o mountains, continents, oceans, valleys, rivers and how the processes of gravitation, chemical changes take place and also it deal s with the reasons behind the reproduction, variations, evolution,, whereas the biology mainly focuses on the living entities and their interactions wirh the abiotic factors like temperature, water, though , light intensity, etc so it studies biosphere and ecosystem and study of it also called as ecology and all these are important because they will let us know that whatever is happening is due to a reason and how it can be used in research to develop a better world for living with desirable improvemnet s and also it helps in addressing the social issues related environmnt like global warming , glacier melting , pollution , inavsion , overexplouitation , climate changes , habitat loss etc.
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How many chromosomes are there in a cell
Answer:
Theres 46 chromosomes in a cell
why you think rust forms on metal. Then read the lesson to learn the role of chemical reactions in living things.
Answer: I think rust forms on metal because it is exposed to oxygen and which it begins to corrode.
Explanation:
Bacteria and other pathogens that normally populate the skin's surface are called:_____.
If a cell has a relatively high energy need, you would expect it to have _________ mitochondria than a cell with a lower energy need.
If a cell has a relatively high energy need, you would expect it to have more mitochondria than a cell with a lower energy need.
Mitochondrion:- Mitochondrion is a double-membrane-bound organelle, where energy is produced through cellular respiration. It is present in the cytoplasm of a cell and generates adenosine triphosphate (ATP), which is the main energy module of a cell. For this reason, mitochondrion is known as the "Powerhouse of the cell".
If a cell has a higher energy need than others, it is required to have more numbers of mitochondria in that cell, since more mitochondria will produce more energy.
Thus we can conclude that, if a cell has a relatively high energy need, you would expect it to have more mitochondria than a cell with a lower energy need.
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The clumping of red blood cells, when the specific antibody against the antigen on the cells is added, is called?
The clumping of red blood cells, when the specific antibody against the antigen on the cells is added, is called agglutination.
In the field of biology, agglutination can be described as a process in which red blood cells (RBC) get clumped. This process occurs due to the coating of specific antibodies to the red blood cells. These antibodies bind to specific antigens on other red blood cells.
As a result of this clumping or agglutination, bridges are formed between the antibodies.
In the body, the process of agglutination can be observed in the case of cold agglutin disease. In the laboratory, the process of agglutination is used for the performance of various tests such as determining the red blood cell count.
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Select all of the following statements that are true concerning living organisms and how they acquire energy. check all that apply A. Cells, the basic unit of life, cannot survive on their own. Instead, all living organisms must obtain and use energy to live. B. Energy flows through a system by being captured, changing forms, used for work, and lost as heat.
C. Instead of a constant input of energy, energy is recycled by organisms.instead of a constant input of energy, energy is recycled by organisms. D. The daily food consumption of an organism provides the energy to support all the metabolic process required for the organism to live.
E. Life runs on mechanical energy from food.life runs on mechanical energy from food.
The statements that are true concerning living organisms and how they acquire energy include the following:
A. Cells, the basic unit of life, cannot survive on their own. Instead, all living organisms must obtain and use energy to live.
D. The daily food consumption of an organism provides the energy to support all the metabolic process required for the organism to live.
What is a living organism?A living organism can be defined as an organism that has an organized structure, cells, and possesses and show the characteristics of life.
Basically, some of the characteristics of a living organism include the following:
MovementReproductionNutritionIrritabilityGrowthExcretionRespirationDeathBased on the information provided, the statements that are true concerning living organisms and how they acquire energy include the following:
Cells are the basic unit of life but they cannot survive on their own. Consequently, every living organisms must obtain and use energy to live. The daily food consumption of a living organism provides the necessary energy needed to support all the metabolic process this required for an organism to live.Read more on a living organism here: https://brainly.com/question/26488154
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Melissa's child was born with an extra chromosome, resulting in down syndrome. this is an example of:_________
Mutation.
Down syndrome was caused by an extra chromosome that Melissa's child was born with. this is an example of mutation.
What does mutation entail?A mutation is a modification to the DNA sequence of an organism.Errors in DNA replication during cell division, exposure to mutagens, or viral infection can all cause mutations.Describe the Down syndrome.Down syndrome is a genetic condition brought on by an extra chromosome.Chromosomes are distinct "packages" of genes found in the human body.They decide how a baby's body will look and function by controlling how it develops during pregnancy and after delivery.A newborn typically has 46 chromosomes.In newborns with Down syndrome, one of these chromosomes, chromosome 21, contains an extra copy.The medical term for having an extra copy of a chromosome is trisomy.Down syndrome is often referred to as trisomy 21.The newborn may experience difficulties with their mental and physical development because of this extra copy, which modifies how their body and brain develop.Is Down syndrome curable?Down syndrome is incurable. Programs for early intervention can help with skill development.Examples include speech, physical, occupational, and/or educational therapy.Many people with Down syndrome lead happy, fruitful lives with assistance and treatment.To learn more about down's syndrome visit:
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If you made a change in the promoter sequence in the dna, what would happen at the rna level?.
No RNA would be produced if the DNA's promoter sequence were altered. No RNA would be produced since the RNA polymerase would be unable to detect and bind the DNA.
No RNA would be produced since the RNA polymerase would be unable to detect and bind the DNA. The RNA sequence would be altered as a result of the DNA mutation. The RNA would not be produced because the DNA helicase would not be able to identify and bind the DNA. The protein's secondary and tertiary structures would alter as a result of changes to the fundamental structure.A promoter, in the field of genetics, is a segment of DNA that proteins bind to to start the transcription of a single RNA transcript from the DNA downstream of the promoter.For transcription to take place, RNA polymerase must bind to DNA close to a gene. A location for an enzyme to bind is provided by promoter DNA sequences. TATAAT is the -10 sequence. On average, 35 sequences are conserved, however most promoters do not.Learn more about transcription here:
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Which term describes the process by which an increase in functional demand results in an increased number of cells?
Hypertrophy is the process by which an increase in functional demand results in an increased number of cells.
What is Hypertrophy?A tissue or organ undergoing hypertrophy will see an increase in volume as a result of the component cells inside growing larger. It differs from hyperplasia, in which the cell size stays about the same but the quantity increases. Although hypertrophy and hyperplasia are two separate processes, they commonly go hand in hand, as in the case of the hormonally induced proliferation and expansion of the cells of the uterus during pregnancy.
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Viewing the shape of a bacterial or archaeal cell using a microscope gives a great deal of information about the metabolism and lifestyle of the organism. question 11 options:
a. true
b. false
The statement is false that viewing the shape of a bacterial or archaeal cell using a microscope gives a great deal of information about the metabolism and lifestyle of the organism.
Archaeal cell is the prokaryotic unicellular organism, that live in extreme habitats. These habitats can be thermal hot springs, extreme salty waterbodies or in areas producing methane gas. This is the reason they are also called extremophiles. Examples are: methanogens, halophiles, etc.
Metabolism refers to all the chemical reactions that take place inside an organism's body. Metabolism is made up of two phenomena: anabolism and catabolism. Anabolism is the formation of larger molecules from smaller ones, while catabolism is the breakdown of larger molecules into smaller ones.
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Lipid a is a component of:__________
a. lipopolysaccharides.
b. plant cell walls.
c. cytoplasmic membranes.
d. mycolic acid.
e. bacterial glycocalyces.
Lipid is an important component of outermost lipid membrane of gram negative bacteria.
What is lipid molecule?Lipid is an essential component of the cell membrane. They are family of organic molecules that are insoluble in water. The three main types of lipids are triglycerides, phospholipids and sterol.
Functions of lipids:
It provides energy storage to plants and animals.Phospholipids form the foundation for lipid bilayers.Lipids provide protective barriers for specialized tissues such as nervesLipid is a component of lipopolysaccharides.Therefore, Lipid is an important component of outermost lipid membrane of gram negative bacteria.
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The ____ model focuses on promoting good health and good health practices to avert disease
The public health model focuses on promoting good health and good health practices to avert disease.
What do you mean by public health?Public health is characterized as the science of defending the security and enhancing the health of communities through instruction, the development of public policies, and investigation into the prevention of illness and harm. For each person, the term "public health" has a different meaning.
Therefore, a medical disease that substantially impacts a particular group qualifies as a public health problem.
Which three objectives define public health?The World Health Organization (WHO) states that the purpose of public health is to prevent illness, improve health, and extend life for the entire community.
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A traumatic injury to a joint involving the soft tissue (muscles, ligaments, and tendons) is a?
A traumatic injury to a joint involving the soft tissue is called a sprain.
Generally, 'soft tissue' is commonly used to describe muscles, tendons and ligaments. They connect, support and surround the bones. A traumatic injury to the ligament is called a sprain, and a traumatic injury to the muscles and tendons is called a strain.
A sprain or torn ligament occurs when the ligaments in a joint get torn due to a sudden movement so extreme, it exceeds the ligament's normal range of movement. In a joint, ligaments are inelastic, tough collagen fibers that connect two or more bones together.
When a muscle or tendon is overstretched and gets torn, it is called a strain or a pulled muscle. A tendon is a fibrous tissue that connects muscles to bones.
The major difference between a strain and a sprain is that a strain is an injury to the muscles and tendons, while a sprain is an injury to the ligaments. Both injuries are usually mild and can be treated at home using ice, compressions, elevation and rest.
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Which route of drug administration delivers drugs directly to the tissue where they exert their actions?
Answer:
The parental route delivers drug administration delivers drugs directly to the tissue
3. What evidence have you discovered to explain how natural selection
leads to changes in populations of organisms, such as orchid plants?
Some types of the evidence, such as the fossils and the similarities between the related living organisms, were used by Darwin to develop his theory of the natural selection, and are still used by today. Others, such as the DNA testing, were they not available in Darwin's time, but are used by the scientists today to learn more about the evolution.
The Natural selection is the mechanism of the evolution. Organisms that are more adapted to their environment and are more likely to survive and they pass on the genes that was aided their success. This process was causes species to change and then diverge over time. Darwin used multiple lines of the evidence to support his theory of the evolution by the natural selection -- fossil evidence, the biogeographical evidence, and the anatomical evidence.
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Which structures are fingerlike projections that greatly increase the absorbing surface of cells?.
Microvilli are the structures of fingerlike projections that greatly increase the absorbing surface of the cells.
What is Microvilli?Microvilli are membrane protrusions that resemble fingers and are sustained by the actin cytoskeleton. They are present in practically all cell types. An increasing amount of research indicates that the highly curved membranes of the dynamic lymphocyte microvilli play a critical role in signal transduction that triggers immunological responses.
The examination of the process that generates curvature and its functional implications in signaling, however, was impeded by difficulties in altering local membrane curvature and tracking the high dynamicity of microvilli. Recent developments in adaptive super-resolution microscopy have helped to partially overcome these technological obstacles.
Therefore the structure that increases the absorbing surface area is called microvilli.
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A red blood cell placed into a container of distilled water will ________ water through the process of ___________.
A red blood cell placed into a container of distilled water will gain water through the process of osmosis.
What is osmosis?Through a cell's partially permeable membrane, water molecules move through osmosis from a solution with a high concentration of water molecules to one with a lower concentration. Red blood cells that are exposed to fresh water swell, and plant root hairs that absorb water are two examples of osmosis. Soak gummy candies in water to see an uncomplicated example of osmosis. A semipermeable membrane is created by the gel in the candies.
When two solutions with different solute concentrations are separated by a semipermeable membrane, osmosis is how the solvent is transported through the membrane. The solvent is transferred from a solution with a lower concentration of solute to a solution with a higher concentration during osmosis.
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Why does the stickleback fish system investigated by dolph schluter and colleagues represent a great example of ecological speciation?
Ecological speciation is the process through which new species develop as a result of differential natural selection between diverse ecological settings.
There are currently many instances of this technique. A type of speciation known as ecological speciation results from reproductive isolation when there is less or no gene flow between two populations of a species as a result of an ecological condition. Environmental changes that a species encounters, such as behavioral modifications in predation, predator avoidance, pollinator attraction, and feeding, as well as modifications in mate preference brought on by sexual selection or communication mechanisms, are examples of ecological factors.
New species are created as a result of ecologically motivated reproductive isolation under divergent natural selection. In the stickleback fish system, they adapt instead of being blind therefore it is an example of ecological speciation.
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Which of the following is TRUE
about theories and laws?
A. A law will always become a theory.
B. ONLY a theory can ever be proven.
C. Theories and laws are the same thing.
D. A theory can never become a law.
The following is TRUE about theories and laws are-
D. A theory can never become law.
All scientific hypotheses are supported by data, are testable, and—most importantly—can be used to forecast the future. Accordingly, ideas never become laws, regardless of how much evidence there is to support them. In actuality, the end purpose of science is the formulation of theories. Any (expressed) law is a theory even though it can contain some truth that can only be derived from facts or another theory.
A theory is something we can only (temporarily) believe in since we are unable to prove it. A law cannot be a fact since it usually has an undefined, universal scope, and we can only collect a limited number of observations, some of which may be nothing more than dreams.
Therefore, I would say that any scientific law is a theory, a conviction, or a hypothesis, and we should anticipate that it will be challenged, improved, or supported by... another (simpler or more compelling) idea.
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Sodium reacts explosively with oxygen while iron does not. Which of the following is MOST responsible
for the differences in the chemical reactivity of sodium and iron?
The reason why sodium reacts explosively with oxygen while iron does not is the number of electrons in the outer electron shell.
What is reaction?In a chemical reaction, we have the combination of two substances to form a new substance. Now we have to recall that metals do have an order of reactivity. The metals that are more reactive are found at the top of the activity series and the metals that are less reactive are found below in the series. In this case, sodium is more reactive and is found higher in the series while iron is found lower in the series.
Recall that the activity series is arranged in the order in which the metals are able to loose electrons. The metals that loose electrons more easily occupy the u[per parts of the activity series of metals. Iron lies at the middle position but far below sodium in the activity series of metals.
As such, the reason why sodium reacts explosively with oxygen while iron does not is the number of electrons in the outer electron shell.
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Missing parts
Sodium reacts explosively with oxygen while iron does not. Which of the following is MOST responsible for the differences in the chemical reactivity of sodium and iron? O A. number of protons in the nucleus O B. number of neutrons in the nucleus O C. number of electrons in the inner electron shell O D. number of electrons in the outer electron shell
Regions of distinctly different physical areas that serve as boundaries between different communities are called?
The Regions of the distinctly different physical areas that has serve as the boundaries between the different communities are called as ecotone
An ecotone is the transition area between the two biological communities, where the two communities must meet and integrate. It may be the narrow or wide, and it may be the local ("the zone between a field and forest") or regional ("the transition between forest and grassland ecosystems").
The Ecotones are the areas of the steep transition between the ecological communities, the ecosystems, and/or ecological regions along with the environmental or other the gradient. Ecotones may occur at multiple spatial scales and the range from the natural ecotones between the ecosystems and biomes by the human-generated boundaries
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Orbitals are found in or energy levels.
The primary distinction between orbitals and energy levels is that although energy levels depict the relative locations of orbitals based on the amount of energy they contain, orbitals depict the most likely path of an electron in motion around the nucleus.
The nucleus is the center of the orbits. One orbital will be larger than the others if an atom has several orbitals, or they will overlap. Additionally, an electron is most likely to be found in orbitals.
Energy levels are the name for orbitals. The main energy levels, often known as the shell, denote a defined distance from the nucleus where electrons can be found. It is represented by the number "n," and as the number's value rises, so does the average distance and energy of the electron from the nucleus.
The fixed distances from an atom's nucleus where electrons may be found are referred to as energy levels (also known as electron shells). In an atom, the small, negatively charged electrons travel around the positive nucleus.
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Which feature of borrelia burgdorferi would be most influential in leading a microbiologist to perform a negative stain on it, as opposed to any other type? group of answer choices
The feature of borrelia burgdorferi would be most influential in leading a microbiologist to perform a negative stain on it is Spirochetes.
What is spirochete?
Any of a group of spiral-shaped bacteria known as spirochetes (order Spirochaetales), often spelled spirochaetes, some of which are dangerous pathogens for humans and cause illnesses like syphilis, yaws, Lyme disease, and relapsing fever.
Gram-negative, mobile, spiral bacteria with a length of 3 to 500 m (1 m = 0.001 mm) are known as spirochetes. Spirochetes are distinctive in that they have endocellular flagella (axial fibrils, or axial filaments), the number of which varies depending on the species, and ranges from 2 to more than 100 per organism. The axial fibrils wind around the cell body, which is encased in an envelope, each attaching at the opposite end. Typically, spirochetes are found in a watery environment.
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True of false. mobility is the range of movement a joint can move while stretching.
True, mobility is the range of movement a joint can move while stretching.
Movement- Movement is the act or condition of moving the location or orientation of the body or a bodily part from one position to another. One of the key characteristics of living things is movement. Amoeboid, ciliary, and muscular motions are the three basic categories of movement.
Joint- The area of the body where two or more bones unite to allow for movement is known as a joint. Every bone in the body has at least one joint where it joins another bone, with the exception of the hyoid bone in the neck. A joint's function determines its form. The term "articulation" can also refer to a joint.
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