The cell theory demonstrates the scientific definition of a theory in three ways. First, it's been tested extensively. Second, it summarizes the research and observations of the many different scientists who worked at different times. Third, it allows researchers who observe evidence of cellular structure in unknown objects to form predictions about the object such as whether it is a living thing and it can reproduce itself.
What is a cell theory?
Cell theory states that the cell is the basic functional and structural unit of all living organisms. Now, modern cell theory adds that all living organisms are made up of cells and cells arise from pre-existing cells.
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Cilia are found in certain:__.
a. protozoa.
b. algae.
c. fungi.
d. bacteria.
e. all of these choices are correct.
Cilia are found in certain a. protozoa.
In the field of biology, cilia can be described as thread-like projections which are membrane-bound, found in mammals and various microorganisms referred to as ciliates.
Protozoa are eukaryotic organisms that are single-celled. The protozoa can either live freely or choose a parasite to live in.
Cilia are present in certain protozoa in order to help the protozoa in movement. The cilia also help the protozoa in gathering food for nutrition. The cilia also make it possible for protozoa to attach to a surface. Sensations in a protozoa can also be generated through cilia.
The cilia cover the entire surface of the protozoa cell.
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Using amylase and starch as an example, what are the products formed from the enzyme-substrate complex?
The correct answer for the products formed from the enzyme-substrate complex are dextrins, maltose, and glucose.
A sample of starch will be hydrolyzed to shorter polysaccharides, dextrins, maltose, and glucose in the presence of amylase. The extent of the hydrolysis is determined by how long the starch is allowed to react; if the starch is completely hydrolyzed, the resulting product is glucose.
Amylases break down starch into smaller molecules, producing maltose, which is then cleaved into two glucose molecules by maltase. For most nationalities, starch constitutes a significant portion of the typical human diet. Pancreatic amylase completes carbohydrate digestion, producing glucose, a small molecule that is absorbed into your blood and carried throughout your body.
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The alternative circulatory route that involves vessels merging together is a(n)?
The alternative circulatory route that involves vessels merging together is Circulatory anastomosis.
An anastomosis is any connection between two vessels. Circulatory anastomoses are named after the vessels that connect two arteries (arterio-arterial anastomosis), two veins (veno-venous anastomosis), or an artery and a vein (arteriovenous anastomosis).
Anastomoses occur naturally in the body's circulatory system, serving as backup routes for blood flow if one link is blocked or otherwise compromised.
Anastomoses between arteries and anastomoses between veins result in a plethora of arteries and veins serving the same volume of tissue. Such anastomoses occur normally in the body in the circulatory system, serving as backup routes for blood flow if one link is blocked or otherwise compromised, but they can also occur pathologically.
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Of the four common methods used to estimate percent body fat, using _______ is more convenient and relatively accurate.
There are four common processes used to estimate percent body fat, but using skin calipers is more convenient and relatively accurate
Technicians take skin fold measurements at three, four, or seven locations. The technician might use meaning several parts of the body. The technician performing the test pinches the skin first. The skin caliper machine is then used to estimate the skin fold thickness at each site.
Each protocol specifies the locations for testing, which typically include the thighs, abs, arms, and chest. Practitioners can approximate body fat percentage by plugging the figures into a formula.
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Explain the relationships among monomers, polymers, condensation reactions and hydrolysis reactions.
The relationship between monomer and polymer is that monomer is the unit by which polymer is made up of or the long chain of monomer is known as polymer.
What is monomer?A monomer is a type of molecule that can make chemical bond with any molecule and can form a long chain and polymer is a sequence of chain of an unspecified or unknown number of monomers.
Monomers are small sized molecules and they are organic in nature that can combined with similar molecule to form very large size of molecule, or the molecule is known as polymer. The main example of monomers are glucose, amino acids, ethylene, and vinyl chloride. Each monomer combined to form polymers in other ways.
Therefore, The relationship between monomer and polymer is that monomer is the unit by which polymer is made up of or the long chain of monomer is known as polymer.
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The cosmic microwave background (cmb) studies indicate that the total density of matter plus energy in the universe is very close to the critical density, indicating a?
The cosmic microwave background (CMB) studies indicate that the total density of matter plus energy in the universe is very close to 100% of the critical density, indicating a geometrically flat universe.
What does the cosmic microwave background tell us?Because it reveals how the early universe was created, the CMB is helpful to scientists. Only slight temperature variations that can be seen with accurate telescopes indicate that the temperature is uniform.
The strongest proof that the universe expanded from an initial violent explosion, known as The Big Bang, came from their discovery of the Cosmic Microwave Background (CMB), the radiation leftover from the birth of the universe.
Thermal radiation that was left over from the Big Bang's recombination period is known as the cosmic microwave background (CMB). Older literature has various names for the CMB, including "relic radiation" and "cosmic microwave background radiation."
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Kristen wants to find out the sex of her fetus. When should she schedule her sonogram?
A) ten weeks
B) twenty-four weeks
C) twelve weeks
D) six weeks
Answer:
B, Kristen can find out the sex of her fetus using ultrasound as early as 14 weeks but most doctors schedule an ultrasound at around 18 to 21 weeks
Janae is digesting her dinner. her muscles are relaxed and her heart is beating rather slowly. janae's _____ nervous system is active.
Janae is digesting her dinner and her muscles are relaxed and her heart is beating rather slowly it should be analyzed that the parasympathetic nervous system is active.
What is the Parasympathetic nervous system?The parasympathetic nervous system may be defined as the web of nerves that significantly relaxes your body after a time period of large stress, depression, or danger. For example, If we have a rest for the digestive function system, the parasympathetic nervous system (PNS) stimulates the production of saliva.
The enzymes in the saliva construct the food to get completely digested. The fundamental function of the parasympathetic nervous system is to reduce the respiration rate of the heart and then be remarkably involved in the process of enhancing digestion.
Thus, when Janae is digesting her dinner, her muscles are relaxed and her heart is beating rather slowly so that the parasympathetic nervous system is active.
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A girl born with nonfunctioning ovaries could be expected to have a deficiency in the activity of which type of cell?
A girl born with nonfunctioning ovaries could be expected to have a deficiency in the activity of Osteoblasts.
Ovaries are the primary reproductive structures of the female which is responsible for the production of female sex hormones like estrogen and progesterone.
These hormones are also associated with the activity of the osteoblasts cells that are responsible for producing the matrix of the bone.
If a girl is born with non functional ovaries she would not be producing estrogen which in turn will decrease the activity of the osteoblasts cells of the bone leading to porous bones that are prone to breaking.
Even during menopause females become prone to osteoporosis due to low activity of osteoblasts cells.
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Reactants in a chemical reaction are the molecules that are assembled together or broken down to form products. the reactants in photosynthesis are?
Some biological anthropologists study:________
a. life on other planets.
b. the disappearance of languages.
c. extinct and living species of primates.
d. changes in marine life.
Option(c) extinct and living species of primates is the correct answer.
Some biological anthropologists research both extinct and current primatological species.
What is anthropology?Anthropology is the study of what makes people human.Anthropologists investigate all the various dimensions of the human experience from a holistic perspective.To learn how and what mattered to human groups use archaeology to access the past, whether it is hundreds or thousands of years ago.When did anthropology first start?Many academics believe that contemporary anthropology initially emerged during the Age of Enlightenment, an intellectual movement that focused on the power of reason to advance society and knowledge in 18th-century Europe.What makes anthropology significant?Anthropology offers the chance to investigate every facet of human life. It acts as a doorway to the unknown.By studying anthropology, we can get the answers to our questions about who we are, our past, present, and future.Anthropology aids in bridging cultural and geographic divides.
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The story of biological and cultural evolution is written not in words but in things such as:________
The story of biological and cultural evolution is written not in words but in things such as skeletons, stone tools, and remnants of pyramids.
Evolution can be described as a process through which species change over a series of times through natural selection. Evolution is a study that does not has written data but is written through the various things that prove the evolution of organisms.
Scientists study the old skeletons, remnants of body parts, pyramids, stone tools, fossils, etc in order to gather evidence for evolution. The old skeletons and body parts are then compared through the techniques of bioinformatics to study biological and cultural evolutions.
Through the study of evolution, we can predict the diversity of life that can be seen today.
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Which feature is most commonly used to describe bacterial and archaeal cells?
a) no cell walls single-celled
b) no nucleus
c) no cellular membranes
_______ ecology focuses on groups of interbreeding individuals in an attempt to understand factors that determine group size and density.
Population ecology focuses on interbreeding populations in an effort to comprehend the factors that affect group size and density.
Population ecology is a branch of ecology that focuses on understanding the factors that influence the quantity and distribution of animal and plant populations. A population is a subgroup of individuals belonging to a single species that coexists sexually and occupies a specific geographic area. For certain species, it is simple to determine the geographic limits of a population; for other species, it might be more challenging. For instance, the geographic range of plants or animals living on islands is determined by the island's border. On the other hand, other species are spread over very large areas, making it more challenging to define the borders of small populations. There is a continuum between closed populations, which lack exchange with other populations of the same species and are geographically distant from them, and open populations, which exhibit various degrees of connection.
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A nerve cell releases chemical messengers to trigger changes in a nearby muscle cell. this is example of a core principle known as feedback loops.
a. true
b. false
The answer is true. The nerve cell is the primary unit of communication in the neurological system (neuron). The cell body, a primary branching fiber (axon), and numerous smaller branching fibers comprise each nerve cell (dendrites). Nerve cells (neurones) are 'excitable' cells that may convert a range of stimuli into electrical impulses, continuously delivering information about the external
The internal environment to the central nervous system (in the form of sequences of action potentials) (CNS). Except for sponges and placozoa, the neuron is the primary component of neural tissue in all animals. Plants and fungi, for example, lack nerve cells.
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The ___________ of the scapula is the point where the medial and lateral borders meet.
The inferior angle of the scapula is the point where the medial and lateral borders meet.
What is the inferior angle of the scapula?The inferior angle of the scapula may be characterized as the lowest portion of the scapula which is significantly covered by the muscles known as latissimus dorsi muscle. It remarkably migrates forwards round the chest when the arm is captured.
The inferior angle of the scapula is directly correlated with the T7, T8, and T9 of the spinous process or spinal level. It typically depends on the source of Gray's anatomy.
Therefore, the inferior angle is constructed by adjoining the medial and lateral borders of the scapula.
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1 cm³ of water is equal to how many liters of water?
Answer:
0.001
Explanation:
Meet the Texan Looking For a One-Way Ticket to Mars
A Corpus Christi woman is one of 100 finalists for the Mars One mission.
what does Shirelle hope they will discover about Mars by going there in person?
Answer:
fvdjdjkkd
Explanation:
jjjjcghkkjgygghhjdjkhgggvcvccfhjhhhhhhhi
You are looking around the lab and you happen to see fruit flies that have halteres on their legs. how could such a phenotype have resulted?
The fruit flies with a haltered legs is resulted due to homoetic transformation.
Fruit flies also called as Drosophila Melanogaster is considered as model organism for experimental purpose.
Halteres is a pair of club shaped organ that helps in rotation during flight.
Hox genes in Drosophila is responsible for causing homoetic transformation. Eight hox genes are present in most of the insects which are present in chromosome 3.
Hox genes are responsible for the homoetic transformation.
Homoetic transformation is the transformation that occurs in which the fate of the organism is changed to another.
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lapnonetaxi please unscramble 8th science
Answer:
Explanation
Explanation:
The word is explanation
To avoid osmotic shock, the obligate halophile halobacterium salinarum maintains a high intracellular concentration of which chemical?
The obligate halophile halobacterium salinarum maintains a high intracellular concentration of this substance to prevent osmotic shock?
What is osmotic pressure?
Its common way to express the concentration of a solution. Its the pressure that would need to be applied to a pure solvent to keep it from osmosing into the solution through a semipermeable membrane.
The obligate halophile halobacterium salinarum maintains a high intracellular concentration of potassium(K) in order to avoid osmotic shock.
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Hi can someone please help me with these 3 questions!!!!
The dependent variable being measured in the preceding plant experiment, “How Plants Grow In Response to Light,” is the plant's growth. The independent variable is how the plant grows in response to variations in the amount of light it receives.
What is florist hypothesis?The independent variable is how the plant grows in response to variations in the amount of light it receives.
Determine the variable that will be altered first. In this instance, the plant's exposure to light is altered. The independent variable is this.
A clear, explicit, testable assertion regarding the expected relationship between variables or the explanation for an event is called a research hypothesis (or scientific hypothesis).
Therefore, plant growth, hormone concentration, shoot and root, floral pattern development are the part of data in the hypotheses.
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Which bonds maintain the primary structure of a protein?
a. ionic bonds
b. hydrogen bonds
c. peptide bonds
d. disulfide bonds
Peptide bonds are the type of bonds that maintain the primary structure of a protein.
Which bonds maintain the primary structure of a protein?
Peptide bonds are specific type of bonds which connect two or more amino acids together in order to maintain the primary structure of a protein. A peptide bond is also called eupeptide bond. This is a chemical bond that is formed by combining the carboxyl group of one amino acid to the carboxyl group of another amino group. We know that protein is made up of amino acids which are the building blocks of protein. Without this bond, protein molecule can not formed because amino acids are unable to combine together.
So we can conclude that Peptide bonds are the type of bonds that maintain the primary structure of a protein.
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Mother teresa used her charisma to connect her ______ of serving the poor to the ______ of her followers.
Mother teresa used her charisma to connect her vision of serving the poor to the believe of her followers.
How can a leader emphasise the principles of their vision?Additionally, the appropriate terminology must be used while articulating a vision. A leader need to employ energising and exciting language and imagery (Sashkin, 2004; Zaccaro & Banks, 2001). A vision needs to be described in words that are reassuring, inspiring, and positive while yet undervaluing it.
The attitude, beliefs, and behaviours of the vision must be modelled by leaders. Values are concepts, opinions, and conduct that people deem to be desirable.
The vision of a leader is always complete.
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As you glance at the person sitting next to you, light reflected from the person's shirt first passes through which three structures of your eye, and in what order?
The light reflected from the person's shirt first passes through the given eye structures in the following order: cornea → pupil → retina
What is the path of light through the eyes?The eye is the sense organ for sight.
The eye has several structures which enables it to focus light on the retina which is the sensitive spot on the eye where images are formed. The images formed on the retina are then processed in the brain to give a true picture of what is seen.
The eye has several structures which enable it to focus image on the retina. Some of the structures in the eye include;
cornea - a transparent tissue in front of the eye that helps to focus lightiris - the structure that controls the size of the pupilpupil - the opening in the eye that allow light to reach the retinaciliary muscles - the muscles that are attached to the irisretinaWhen light enters the eye, the path it follows is as follow: cornea → pupil → retina
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Among ____________ organisms such as humans, groups of cells with similar functions make up tissues.
Among Multicellular organisms such as humans, groups of cells with similar functions make up tissues.
Multicellular Organism- An organism with numerous cells is said to be multicellular. Technically, "multicellular" refers to more than one because the word "multi" is used to describe multiples of anything. The division of labor and cellular specialization enable the development of multicellular creatures.
Tissues- A collection of cells with similar structures and functions is referred to as a tissue.
Cell- The study of cell structure and function is known as cell biology, and it is based on the idea that a cell is the basic building block of all life. A thorough grasp of the tissues and organisms that cells make up is made possible by concentrating on the cell.
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Early one december morning, vanessa was waiting for the bus. vanessa was wearing a sewatshirt. she put her hands in her pockets and walked back and forth, yet by the time the bus arrived she was shivering. what is shivering an indication of? what will it do?
Answer:
Shivering is a response to matain homeostasis
Explanation:
Self-replication of living cells occurs through the catalytic action:________
a. rna.
b. proteins.
c. nucleotides.
d. dna.
Self replication of living cells occurs by the catalytic action of Proteins.
The biological process that results in the creation of an exact or comparable clone of itself is known as self-replication. DNA replication takes place during cell division and can be passed on to progeny during reproduction.
Proteins are the main metabolites used as the catalyst in the biological and chemical reactions. Enzymes made up of protein has main role in enzyme catalysis, which decrease the activation energy, thus increase the rate of reaction.
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Which subfield of biological anthropology is primarily concerned with the study of disease and trauma in archaeologically derived skeletal populations?
Paleopathology is the subfield of biological anthropology that is concerned with the study of disease and trauma in archaeologically derived skeletal populations
The study of people from the perspective of human biology, including the structure and functions of the human body, the environment, social behavior, and how these features have changed over time, is known as biological anthropology or physical anthropology.
The study of disease, both human and nonhuman, in antiquity utilizing a variety of sources, such as human mummified and skeletal remains, ancient texts, images from early books, paintings and sculpture from the past, and coprolites analyses, is known as paleopathology.
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Hemoglobin, when subjected to 40 cetonitrile at ph 10.0, loses its quaternary structure, which means the ________.
Hemoglobin, when subjected to 40% acetonitrile at pH 10, loses its quaternary structure, which means the α and β polypeptides dissociate.
What is Hemoglobin?
Red blood cells contain a protein called hemoglobin, which is responsible for transporting oxygen to your body's organs and tissues as well as carbon dioxide away from them and back to your lungs. A low red blood cell count is indicated if a hemoglobin test shows that your hemoglobin level is lower than normal (anemia).
To adequately deliver oxygen to your body's tissues, you need enough healthy red blood cells, which you do not have in anemia. You might feel exhausted and weakened if you have anemia, also known as low hemoglobin. Anemia comes in a variety of shapes and sizes, each with a unique cause.
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