What smaller units of geologic time make up Eras? a. Periods c. Order b. Divisions d. Epochs

Changing one base in a gene could have the most direct effect on the ?

ad-work [718]

It could have the most direct effect on the amount of mitochondria in cells and also the system of the membrane.

4 0

3 years ago

Which two (2) statements are correct examples of the “structure determines function” relationship among specialized cells in an

Nady [450]

Answer:

A and E are the correct.

Explanation:

Examples of the structures that determine function:

a) Chloroplasts only found in plant cells. They work to fix the CO2 in the presence of light energy (sunlight) and convert the reactants into sugar molecules (carbohydrates) that can be used by cells for metabolic functioning.

e) Sperm is the male reproductive cell. Motile sperm cells have a tail-like structure that typically move via flagella and requires a water medium in order to swim toward the egg for fertilization.

Other options are not correct because they don't explain their function according to their structure.

6 0

3 years ago

A large population of mice is isolated on an island. There are two varieties of the mice, brown and gray. Their fur colors close

Nadusha1986 [10]

Answer:

C. disruptive natural selection

Explanation:

Disruptive selection is a type of natural selection in which extreme phenotypes are favored over intermediate phenotypes in a population. Environmental change is a major factor that can bring about disruptive selection. The individuals with the extreme phenotypes adapt well and are able to survive in the particular environment, while those individuals with intermediate phenotypes would hardly survive or be greatly reduced in number.

The gray rock outcrops and the brown soils of the Island favors the survival of mice with brown and gray fur color respectively. The fur colors of these two extreme phenotypes in the population of mice, have helped both varieties against Hawks as their main predators, hence establishing their existence on the Island.

3 0

3 years ago

If sodium ions are moving from outside the cell to inside the cell where there is a greater amount of sodium ions, which type of

zimovet [89]

The correct answer is 'Active Transport'. when the concentration of particles is higher inside the cell and yet for proper functioning we need more ions, the ions are received by the cell by the means of active transport, in which dissolved substances are moved by the help of carrier proteins with the energy released from respiration.

6 0

4 years ago

PLEASE HURRY ANSWER CORRECTLY AND WILL BRAINLEST

dolphi86 [110]

We can use the formula D=m/v to determine the density of the ring.

With that, the correct answer would be A. 2 g/ml.

Hope I helped! :)

4 0

3 years ago

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