Answer:
A
Explanation:
What tells a muscle when to contract?
Answer:
What tells a muscle when to contract?
Explanation:
(1) A message travels from the nervous system to the muscular system, triggering chemical reactions.
(2) The chemical reactions lead to the muscle fibers reorganizing themselves in a way that shortens the muscle--that’s the contraction.
(3) When the nervous system signal is no longer present, the chemical process reverses, and the muscle fibers rearrange again and the muscle relaxes.
Answer:
The nervous system generates a signal, which triggers a muscle to contract
Explanation:
Question 15(Multiple Choice Worth 3 points) (03.04 MC) Which of the following is most likely an impact of hurricanes? A. Acid rain in coastal areas B. Health problems due to smoke C. Wildfires in forests far away from sea D. Damage to property due to strong winds
Answer:
Explanation:
Hurricanes do not effect acidity
Smoke is not caused by hurricanes
There is no known correlation between wildfires and hurricanes
Hurricanes are defined as rain and wind
Answer: Damage to property due to strong win
Explanation: hurricanes are known for having strong winds and destroying property due to strong winds
The collect data step of the scientific method comes before the hypothesis step. True or False?
Answer:
true after data collection you state your hypothesis
A bell rolling across the foor keeps moving until it is stopped by friction. This example demonsszes
the work prindide
Newton's Second Law of Motion
Newton's Third Law of Motion
Nentor's First Law of Motion
Why is the abundance of viruses in water
directly related to the abundance of microbial life
in the water?
Answer
viruses kills cells and microorganisms can thrive where other species have been wiped out.
Explanation:
Microorganisms can flourish in areas where other species have been off because viruses damage cells.
In how many viruses is a of salt water contained?Viruses are the most prevalent creatures in the water, despite their seeming insignificance. One milliliter of coastal water that has been gathered from the ocean's surface contains up to 10 million.
In oxygen and hydrogen—which make up the water molecule—abound in large quantities. A typical salt that includes both sodium and chlorine is called sodium chloride. Many of the dissolved substances found in the ocean come from the crust of the Earth.
Through the process of photosynthesis, which involves the use of sunlight, nutrients, carbon dioxide, and water, phyto plankton produce oxygen and food for other organisms. the planet's seas, which cover 71% of it.
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Which of the following statements is NOT TRUE about photosynthesis and cellular respiration? (B.9B)
Question 19 options:
Both processes require energy
Both processes occur in the mitochondria
The chemical equations for the processes are opposite of each other.
Photosynthesis occurs in plants; cellular respiration occurs in plants and animals.
Answer:
Both processes require energy cuz respiration produces energy
Explanation:
The statement that is not true is that both processes occur in mitochondria as photosynthesis happens in chloroplasts. So the correct option is B.
What is cellular respiration in plants?While oxygen is needed for plant respiration, carbon dioxide is also released during the process. Plants, unlike people and other animals, don't have any specific structures for the exchange of gases, but they do have stomata (found in leaves) and lenticels (found in stems) that play a part in it. Compared to people and animals, leaves, stems, and plant roots respire slowly.
Respiration is distinct from breathing. Breathing is a phase in respiration that is completed by both humans and animals. Plants breathe differently through a process called cellular respiration, which they engage in throughout their whole existence since the plant cell needs the energy to survive.
Plants produce glucose molecules during this process of cellular respiration by using photosynthesis to absorb solar energy and transform it into glucose. Several real-world experiments show that plants can breathe. To provide their cells the energy they need to function and stay alive, all plants breathe.
Therefore the correct option is B.
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2. A wave in which the disturbance is perpendicular to the direction the wave
travels is called a longitudinal wave.
True or False
Answer:
False
Explanation:
What did
Rudolph Diesel use as fuel?
A triplet of bases in a template strand of DNA is CAG. What would be the corresponding codon for mRNA?
GTC
GUC
OGTU
GUU
How is population size and population density dofferent
Answer: Population size means the total number of organismns in a given area like number of oak trees in a forest. Population density means number of organisms living per unit area like number of oak trees in say 1 sq km of the forest.
Explanation: :)
What molecules are used to build the sugar in photosynthesis? PLEASE HELP
Carbon dioxide
none of these
oxygen
water
Answer:
During the process of photosynthesis, cells use carbon dioxide and energy from the Sun to make sugar molecules and oxygen. These sugar molecules are the basis for more complex molecules made by the photosynthetic cell, such as glucose
Explanation:
Hope this HELPS.
What are the three most common generating forces of waves?
Answer:
,transverse waves,longitudinal waves,and surface waves
Cuales son los seres vivos
Answer:
Living things move, respond to stimuli, reproduce and grow, respire, and are dependent on their environment. Most living things need food, water, light, temperatures within defined limits, and oxygen. ... Some non-living things, such as rocks and water, were never living.
Explanation:
Answer:
Propiedad o cualidad que distingue a los organismos vivos de los organismos muertos y la materia inanimada, que se manifiesta en funciones como el metabolismo, el crecimiento, la reproducción y la respuesta a estímulos o adaptación al medio que se origina en el interior del organismo.
What do you think interphase is? What might the cell be doing in this phase? Think about the prefix "inter". Write your best definition - it's ok if you're not sure, just try your best!
Answer:
Interphase is the 'daily living' or metabolic phase of the cell, in which the cell obtains nutrients and metabolizes them, grows, replicates its DNA in preparation for mitosis, and conducts other "normal" cell functions. Interphase was formerly called the resting phase.
A cell spends most of its time in what is called interphase, and during this time it grows, replicates its chromosomes, and prepares for cell division. The cell then leaves interphase, undergoes mitosis, and completes its division
Interphase is the part of time which mostly the cell utilises for its functionality.
Some of them as
Replication of DNArespirationImport of nutrientsGrowing upThe cardiovascular system is
The cardiovascular system is sometimes called the blood-vascular, or simply the circulatory, system. It consists of the heart, which is a muscular pumping device, and a closed system of vessels called arteries, veins, and capillaries.
The system that contains the heart and the blood vessels and moves blood throughout the body. This system helps tissues get enough oxygen and nutrients, and it helps them get rid of waste products. The lymph system, which connects with the blood system, is often considered part of the circulatory system.
- BRAINLIEST answerer ❤️✌
What are some characteristics of coral reefs
What are some characteristics of estuaries
Answer:
Coral Reefs are filled with life with their extraordinary colors. As they supply other marine life with homes and hide out's , they are very fragile and delicate. Estuaries are wide and big, they can give homes to much more than the coral can but they can be dirtier than the coral reefs because it's a river unlike the coral reef's beautiful characteristics.
Explanation:
Plz help I need help
Answer:
provide support and structure to the cell
Answer:
option c
Explanation: PLS MARK BRAINLIEST
what do most organisms contain?
Answer:
Living organisms on Earth are made of a mixture of carbon, hydrogen, oxygen, nitrogen, sulfur, and phosphorous. This includes water, which has the chemical name H2O and contains two hydrogen and one oxygen atoms.
**** hope this helps brainly if possible thx!
Explanation:
How does the friction affect the total time a pendulum is in motion? And what could cause this friction in the real world?
Answer:
Without friction, the equation of motion for a pendulum of length L is,
md2θdt2+mgsin(θ)L=0.
Or for small oscillations, (i.e., sin(θ)≈θ),
md2θdt2+mgθL=0.
Assuming an initial angle θ0 and a pendulum that starts at rest, the solution to this differential equation is,
θ(t)=θ0cos(gL−−√t).
Frictional force adds an additional damping term into the equation of motion,
md2θdt2+λdθdt+mgθL=0,
where λ is a coefficient of kinetic friction.
Assuming an initial angle θ0 and a pendulum that starts at rest, the solution to the damped differential equation is,
θ(t)=θ0e−12λmtcos((gL−λ24m2−−−−−−−−√)t).
(Note: If you would like to consider closed form solutions for large angles, I would recommend consulting the mathematics section. The solutions to that problem are called elliptic integrals of the first kind.)
Friction decreases the total time that a pendulum is in motion.
If we consider a pendulum in motion, in accordance with Newton's law, the pendulum will continue moving unless it is acted upon by an external force.
In the case of the pendulum, the external force that acts on it is the air resistance or friction. As a result of this friction, the pendulum will eventually come to a stop.
In the real world, the surface of objects cause friction which causes moving objects to stop.
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How does your diet (the different types of foods you eat) affect the water cycle? what types of foods use the least amount of water, and what types of food use the most water?
Answer: Your diet can probably effect. More animals may consume more water than others. Or more plants drink more water than others. by eliminating these animals, there is more water left. Some plants that use the last water is the Sago Palm, Snake plant, Orchids, Spider plant, and plenty of the plant species who are adapted to dry climats. The plants that consume the most water are Ferns, Lilys, Daylilies, Indian grass, Cattails, Iris, and Elephant ears. The animals that consume the most water is probably the biggest animals like elephants and cows, who according to my search can consume up to 100 gallons of water a day durring hot summer months. So, the least water, the less it will rain, the less clouds there would be, and the easier it would be for the land to dry out.
Explanation:
What macromolecules and biomolecules are critical for
cellular respiration to occur?
Answer:
Glucose
Explanation:
Glucose is the molecule that is needed for cellular respiration. The glucose monomer is also a building block for carbohydrate polymers such as starch, glycogen and cellulose. Proteins have a number of important functions. These include their roles in structures, transport, storage, hormonal proteins and enzymes.
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Which of the following is an indicator of good water quality? (2 points)
Answer→ Physico-chemical indicators
Explanation ≈ They include dissolved oxygen, pH, temperature, salinity and nutrients (nitrogen and phosphorus). They also include measures of toxicants such as insecticides, herbicides and metals.
The basic building block of matter
Answer:
Scientists once thought the most fundamental building block of matter was a particle called the atom. Now we know that the atom is made of many smaller pieces, known as subatomic particles. Every atom contains a central core called the nucleus, made of particles called protons and neutrons.
Which is the most comprehensive ecological unit of the biosphere?
O ecosystem
O individual
community
biome
Answer:
D. Biome
Explanation:
The most comprehensive ecological unit of the biosphere is the biomes. Biomes are the largest ecological unit of life.
How does an atom become a positive ion?
O A. It loses an electron.
O B. It gains a neutron.
O C. It gains an electron.
D. It loses a neutron.
Answer:
The answer is C
Explanation:
Mark the brainly
Answer:
A. It loses an electron
Explanation:
An atom becomes a positive ion when it loses an electron (then there are more protons than electrons in the atom) when it is trying to reach stability. This is called a Cation. The opposite of this is an Anion, when an atom gains an electron to reach stability and becomes a negative ion (because the number of electrons are higher than the number of protons).
Help I need answers
Answer:
D
Explanation:
Which of these statements describes how monomers combine and create macromolecules?
1 Nucleic acids combine to make starch.
2 Amino acids combine to make proteins.
3 Glucose molecules combine to make nucleic acids.
4 Proteins combine to make glucose.
Answer: Amino acids combine to make proteins.
Explanation:
what do you mean by Dermatology?
Answer:
its basically the treatment of skin contiditions like acne and other stuff
Explanation:
Answer:
Dermatology is the science that is concerned with the diagnosis and treatment of diseases of the skin, hair and nails.
Explanation:
what differentiates amino acids from one another
Answer:
Every amino acid comprises a hydrogen atom, a carboxyl group, an alpha-amino group and also the R-group (which makes the side chain). The side chain present in every amino acid is different. Therefore, the only primary factor that makes each amino acid different is the presence of R-group.
Explanation:
Maybe this will help..
(ANSWER IF U CAN PLEASE) Atoms, Elements, Compounds, and Chemical Bonds
1. The diagram below shows the atomic structures of to different atoms. Use the
daram to
• Assess the chemical properties of each atom in terms of stability or reacht
and explain your reasoning
• Explain the relationship between atoms and elements. Be sure to refer to the
agram in your explanation
Atomic Models of Elements
Lithium
Fluorine
electron
neutron
proton
(PLEASE HELP IF U CAN , 50 POINTS : NEED IT BY 11:59)
Answer:
Atomic Models Of Elements: Atoms consist of three basic particles: protons, electrons, and neutrons. The nucleus (center) of the atom contains the protons (positively charged) and the neutrons (no charge). ... Atoms are made up of protons and neutrons located within the nucleus, with electrons in orbitals surrounding the nucleus.
Lithium:Lithium is a chemical element with the symbol Li and atomic number 3. It is a soft, silvery-white alkali metal. Under standard conditions, it is the lightest metal and the lightest solid element. because it is present in trace amounts in virtually all rocks.
Florine:Fluorine is a chemical element with the symbol F and atomic number 9. It is the lightest halogen and exists at standard conditions as a highly toxic, pale yellow diatomic gas. As the most electronegative element, it is extremely reactive, as it reacts with all other elements, except for argon, neon, and helium.
Electron:Electron is a free and open-source software framework developed and maintained by GitHub. It allows for the development of desktop GUI applications using web technologies: it combines the Chromium rendering engine and the Node.js runtime.
Neutron:The neutron is a subatomic particle, symbol n or n⁰ , which has a neutral charge, and a mass slightly greater than that of a proton. Protons and neutrons constitute the nuclei of atoms.
Proton:A proton is a subatomic particle, symbol p or p⁺ , with a positive electric charge of +1e elementary charge and a mass slightly less than that of a neutron. Protons and neutrons, each with masses of approximately one atomic mass unit, are jointly referred to as "nucleons".
Explanation:
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