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Ede4ka [16]
3 years ago
11

Describe what the phrase survival of the fittest means

Biology
2 answers:
olchik [2.2K]3 years ago
6 0
Every man for themselves, only the strongest will survive through whatever environment they may be put in.
Ivahew [28]3 years ago
5 0
Survival of the fittest is the continued existence of organisms that know how to adapt to their environment
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Testosterone and estrogen are lipid-soluble signal molecules that cross the plasma membrane by simple diffusion. If these molecu
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Answer:

Non- targeted cell lacks intracellular receptor for these hormone.

Explanation:

Receptors that are found on the cell surface are called cell surface receptor and those which are found inside the cell are called intracellular receptors. Intracellular receptor binds to lipophilic molecules. Each receptor binds specifically to a particular ligand or signal molecule.

So even though testosterone and estrogen can diffuse in every cell they will only affect those cell which have specific receptor which can bind to these hormones and then regulate the transcription of a specific gene in the nucleus.  

So only those cells will respond to testosterone and estrogen who have specific intracellular receptors for them.

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3 years ago
What two layers make up skin? a. keratin and dermis c. epidermis and dermis b. epidermis and melanin d. melanin and keratin
levacccp [35]
Upper layer- epidermis
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ELECTRICAL POWER CAN BE DESCRIBED AS:
coldgirl [10]

Answer:

none is correct

Explanation:

Electric power is the rate, per unit time, at which electrical energy is transferred by an electric circuit.

5 0
3 years ago
Does the enzyme make the reaction occur faster
Scrat [10]

Answer:

Enzymes are biological catalysts. Catalysts lower the activation energy for reactions. The lower the activation energy for a reaction, the faster the rate. Thus enzymes speed up reactions by lowering activation energy.

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Water molecules have select answer a lesser a greater an equal attraction for sodium and chloride ions than sodium and chloride
irina [24]

Answer:

A greater attraction

Explanation:

Water molecules have A GREATER ATTRACTION for sodium and chloride ions than sodium and chloride ions have to each other.

This is because when salt is added to water, it dissolves, which depicts the level of the covalent bond of water is stronger by separating the ionic bond between sodium and chloride, otherwise, the salt would not have been able to dissolve.

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3 years ago
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