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shepuryov [24]
3 years ago
10

What must be true for natural selection to happen?

Biology
1 answer:
Juliette [100K]3 years ago
6 0

Answer:

pretty sure it’s B

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Did your observations provide evidence to support any of the claims
Lyrx [107]

Answer:

jhvjgk gh ggjjg

Explanation:

4 0
3 years ago
in its second messenger role, cAMP activates enzymes called ____________, whose jobs is to regulate other enzymes by adding phos
Anon25 [30]

In its second messenger role, cAMP activates enzymes called kinases, whose job is to regulate other enzymes by adding phosphate groups to them.

<h3>What is a kinase?</h3>

A kinase is an enzyme that catalyzes the addition of phosphate group and thus regulates cell signaling.

Moreover, phosphatases are enzyme that catalyze the removal of a phosphate group in a protein.

In conclusion, in its second messenger role, cAMP activates enzymes called kinases, whose job is to regulate other enzymes by adding phosphate groups to them.

Learn more about phosphatases here:

brainly.com/question/11655948

#SPJ12

7 0
2 years ago
Describe the function of each organelle.
Elis [28]

Answer:

Cytoplasm: Fluid between the cell membrane and the nucleus. helps protect organelles

Nucleus: A part of the cell containing hereditary information and is responsible for growth and reproduction; the "command center" of the cell.

Ribosome: A small particle in the cell that can make proteins.

Endoplasmic Reticulum: A cell structure that forms a maze of passageways in which proteins and other materials are carried from one part of the cell to another.

Golgi Apparatus: A cell structure that helps make and package materials to be transported out of the cell or for storage inside the cell.

Lysosome: Cell organelle filled with enzymes needed to break down certain materials in the cell, such as large food particles or old parts of the cell. May be found only in animal cells.

Vacuole: Saclike storage structure in the cell. can store water, nutrients, and even toxic substances.

Mitochondrion: An organelle containing enzymes responsible for producing energy. (Metabolism/respiration)

Chloroplast: An organelle found in the cells of plants and some other organisms that captures the energy from sunlight and converts it into chemical energy (photosynthesis).

Cell membrane: The thin, flexible barrier around a cell; controls what enters and leaves the cell.

Cell wall: The structure outside of the cell membrane that is used to provide support and protection. Present in plants, algae, fungi, and many prokaryotes.

8 0
3 years ago
Aswapati prayed ___for a child.
sergeinik [125]

Answer:

King Aswapati humbly requested for a son. But Deity Savitri ... Later, King Aswapati begot a child. .... She kept her husband's head on her lap and prayed Yama.

Explanation:

this all i got hope this help let me know if this help

3 0
3 years ago
A certain reptile species is an herbivore and exists only on an isolated island.
Oksanka [162]

The reptile produce few offsprings having no unique traits, and the vegetation as well changes quickly so that it can be protected from the reptile species.

Explanation:

Majority of the reptiles lay eggs or give birth to young ones such as squamates , this is done in two ways such as by keeping the egg inside the body of the mother or by developing offsprings without any formation of eggs. Climate change is having an adverse effect on the reptiles , a physiological as well as ecological change is occurring as a result reptiles as well as other species are in danger. Climate change is having an adverse effect on snakes , that is, there is fall in range size of snakes.

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3 years ago
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