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DerKrebs [107]
1 year ago
10

Which of these best describes the tiny leg bones that some whales have, which do not aid in their movement or serve any other fu

nction?
O structures that grow and improve in function as they are used
O structures that function at certain times of the year or under certain conditions
O structures that will become adaptations when the environment changes
O structures that have lost all or most of their function over evolutionary time
Biology
1 answer:
Ainat [17]1 year ago
6 0

Answer:

D. structures that have lost all or most of their function over evolutionary time

Explanation:

the question states that the leg bones are almost entirely unused because of evolution

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No matter what the cell type, prokaryotic or eukaryotic, plant or animal, the cell membrane forms a protective barrier between the exterior environment and the interior of the cell.
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After injuring his knee, Kai began having pain and numbness in his lower leg. The doctor said the injury damaged nerves that run
Igoryamba

Answer:

Nervous system

Explanation:

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A cell is in a equilibrium with its surrounding at 30 degrees Celsius. The molarity of surrounding sucrose solution is 0.5m. Cal
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Solute potential of a solution is calculated using the formula,

Ψ_{s}=-(iCRT)

Where,

Ψ_{s}is the solute potential of the solution,

<em>i</em> is the degree to which the solute ionizes(ionization constant) in solution = 1, as sucrose is a nonelectrolyte.

C is the concentration of the solution in molarity = 0.5 M

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T is the temperature in Kelvin scale = 30^{0}+273 =303 K

Calculating the solute potential of the surrounding sucrose solution:

Ψ_{s}=-(iCRT)

              = -(1 * 0.5 M * (0.0831 L.bar/(mol.K))* 303 K)

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Therefore, the solute potential of the surrounding solution is 12.6 bar

7 0
2 years ago
Bacteria that lack fimbriae are less likely to ________.
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The correct answer will be option- adhere to cell surfaces.

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If a connective tissue disease was adversely affecting the sarcolemma what symptoms might be presented
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I would think it would kill it completely
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