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Natali [406]
2 years ago
12

Which of the following statement about energy and nutrients in an ecosystem is true?

Biology
2 answers:
DiKsa [7]2 years ago
7 0

Answer:

D

Explanation:

kozerog [31]2 years ago
3 0

Answer:

i took the test and its either c or d

Explanation:

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45 mg of caffeine in one cup of instant coffee.

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3 years ago
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Which assumption must be correct for a population to be in hardy-weinberg equilibrium for a specific gene? see section 23.1 ( pa
Goshia [24]

There are five basic Hardy-Weinberg assumptions:

1. Random Mating -

2. No natural selection - all members of the parental generation survived and contributed equal numbers of gametes to the gene pool, no matter the genotype

3. No genetic drift (random allele frequency changes) - the population is infinitely large.

4. No gene flow - no new alleles were added by immigration or lost through emigration (no migration)

5. No mutation -  There must be mutation equilibrium.


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3 years ago
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Which of the following statements about ATP-powered pumps is NOT true? All ATP-powered pumps contain at least one transmembrane
MAVERICK [17]

Answer:

Only P-, F-, and V-class pumps transport ions.

Explanation:

The distinct classes of ATPases include:

1) Only the P-type ATPase actively transports ions across biological membranes. P-ATPases (also named E1-E2 ATPases) are found both in plasma and organelle membranes. These ATPases serve to transport ions and phospholipids by hydrolyzing ATP to ADP and phosphate.

2) A- and F-ATPases synthesize ATP by transforming the energy from a gradient of ions across the cell membrane.

3) V-ATPase (also known as Vacuolar-H+ ATPases) acidifies vacuole, lysosome, endosome and Golgi membranes. This type of ATPase couples the hydrolysis of ATP to the active transport of protons across biological membranes.

4) E-ATPases hydrolyze extracellular ATP.

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Areas of study that try to mimic science for cultural or commercial gain are called
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The area of study is called political science
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