Why do cells need a constant supply of energy

Answers

Answer 1

Answer: All cells need energy to stay alive. All cells must release chemical energy in the bonds.

Related Questions

What is the advantage of binary fission for prokaryotes? They can fight disease. They can adapt easily to any environment. They can vary their shapes. They can reproduce quickly.
Which of the following observations best supports the conclusion that dolphins and sharks do not have a recent common ancestor?A. Dolphins form social groups, but sharks are solitary. B. Dolphins hunt during the day, but sharks are nocturnal. C. The number of dolphin species is far less than the number of shark species. D. The jawbone structure in dolphins is very different from the jawbone structure in sharks.
How does the contractile vacuole in a single-celled organism function to maintain homeostasis?a. It pumps water into the cell. b.It pumps water out of the cell. c.It pumps solutes into the cell. d.It pumps solutes out of the cell.
plate tectonics is the movement of the lithosphere plates. these plates float on the (cryosphere, asthenosphere, hydrosphere, atmosphere) and move because of mantle (convection, reduction, condensation, growth).
In lemmings, gray (G) fur is dominant over white (g). There is a second gene called color (C), and individuals must have at least one dominant C allele for gray color to be expressed. You obtain a white lemming that is heterozygous for gray fur color. What is its genotype?

phytoplankton are autotrophic protists that are only found near the surface of ocean water. this is because

Answers

Answer:

More sunlight is available at the surface of ocean to carry out photosynthesis.

Explanation:

Phytoplankton are autotrophic organisms and use sunlight to carry out the process of photosynthesis. Sunlight is required for photosynthesis to occur. More sunlight is available at the surface of ocean. Availability of sunlight reduces with increasing depth of water due to presence of suspended particles in water. To obtain maximum sunlight to support photosynthesis, phytoplankton are found near the surface of ocean water.

Phytoplankton require sunlight because they generate energy though photosynthesis. They do make tasty snacks for the passing aquatic organism, but not purposefully.

The chemical substances that an organism requires to live are called nutrients. Please select the best answer from the choices provided T F

Answers

True.

Nutrients allow the organism to function by giving it the energy to function and perform specific actions that are required for life.

Answer:

true

Explanation:

the data collected over the years clearly confirm depletion of ozone in the stratosphere. what do scientists still need to learn about the ozone hole?

Answers

Answer:

Ozone is the layer (blanket) on the atmosphere that protects lives on earth, from the harmful incoming ultraviolet solar radiation. This are UV rays can damage the skins of humans. It is denoted by O₃ and is located at the stratosphere.

This ozone layer has been significantly affected due to the emission of green house gases. The use of chlorofluorocarbon (CFC), methane gas (CH₄) as well as emission of carbon and sulfur has depleted the ozone layer.

Scientists have studied and examined why this depletion is going on and have suggested many steps to avoid ozone depletion and are still trying to find out the best solution to stop this ozone depletion. The use of products that contains CFC and releases methane gas must be avoided.

The ozone depletion is observed to be maximum in Antarctica because the environment there is suitable for the events that leads top the depletion of the ozone layer.

Ozone is simply a molecule consisting of 3 oxygen atoms, which reacts strongly with other molecules. Ozone is created in the stratosphere when high energy uv radiation causes on O2 molecule to split. The free oxygen atoms collide and react with other O2 molecules to form O3.

Production is highest where the solar uv is the greatest eg near the tropics, but once created, the ozone is then circulated towards the poles by the atmosphere. The amount of ozone in the stratosphere can vary with location, season and even day to day climatic conditions.

The process of ozone creation is what makes the O3 in the atmosphere very effective at shielding the Earth from harmful uv radiation, which can cause many biological problems, such as skin cancer. However, due to its high reactivity, the uv found in the tropospher at ground level can aslo be dangerous as a toxic pollutant which is harmful to plants and lung tissue, and is a major cause of smog.

Which of the following are factors that both unicellular and multicellular organisms actively balance in order to achieve homeostasis?A)size, shape, and mass
B)texture, density, and flexibility
C)wastes, nutrients, and water
D)sound, light, and temperature

Can any one explain this one for me

Answers

C) wastes, nutrients, and water.
Those are all properties organisms need to survive with, to achieve homeostasis (maintaining balance) the organism needs to regulate that.

(Size shape and mass don't make sense, texture doesn't make sense, neither does light)

I think of it like imagining a bear, do they maintain size during hibernation? No, maintain light? No.

Answer

(C) Wastes, nutrients and water

Explanation:

It is the replacement of a section or one part of an insect or a different segmented animal by a composition composed of a different section, primarily through mutation. In evolutionary developmental biology, homeosis is the transmutation of an individual organ into another, resulting from a mutation or mis expression of several developmentally important genes, especially homeotic genes.

3. What does electronegativity mean? A. Affinity for electrons in covalent bonds B. Repulsion of electrons in covalent bonds C. The negativity of a molecule due to the number of electrons D. An atom's ability to steal electrons in ionic bonds

Answers

Ok not sure about the others but electronegativity is basically an atoms hunger for electron
Greater the electronegativity, great the desire the atom hasbfor electron. So basically the answer is D

Answer:

Explanation:

gentoo penguins will present a mate with a pebble that they find to attract a mate. emperor penguins have a specific call and movement that they make to attract a mate. which type of isolation do these penguins demonstrate?

Answers

The answer is behavioral isolation.

Reproductional isolation is a way to prevent closely related species to mate each other. This is due to reproductive barriers which can be either prezygotic (before fertilization) and postzygotic (after fertilization) barrier. Behavioral isolation is an example of postzygotic barrier. It is based on behavior, including mating sounds and rituals. Thanks to behavior isolation, the different species (in this example gentoo penguins and emperor penguins) will have different mating rituals so they could attract only individuals of their own species, respectively.

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