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ICE Princess25 [194]
3 years ago
14

6. A biologist hypothesizes that restricting food from mice will decrease their activity. He designs an experiment in which he o

bserves the activity of 50 mice under restricted food regimens. Which of he following is true about his study?
A. The study is well designed since it uses a large sample of mice.
B. The study does not include a control group.
C. The study includes too many variables.
D. The results will allot the biologist to draw a valid conclusion.
Biology
2 answers:
Maksim231197 [3]3 years ago
8 0
<span>C. The study includes too many variables. </span>
aleksandr82 [10.1K]3 years ago
4 0

Answer : Option B) The study does not include a control group.

Explanation : The experiment does not includes a control group in it, as the inclusion of control group would have been used as a benchmark to measure how the other tested results were. The biologist simply hypothesized that restricting food from mice will decrease their activity. And on the same he designed his experiment in which he observed the activity of 50 mice under restricted food regimens. And he lacked a comparison for the results, i.e the control group.

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Hyperpolarization means that the ________. Group of answer choices membrane potential becomes more negative than the resting pot
gladu [14]

Answer:

Hyperpolarization means that the membrane potential becomes more negative than the resting potential.

Explanation:

The voltage across the membrane of a neuron that is at rest and not sending out signals is called the resting membrane potential, or just the resting potential. The concentration gradients of ions across the membrane and the amount of each type of ion that can pass through the membrane determine the resting potential. When a neuron is at rest, there are different levels of sodium and potassium on both sides of the cell membrane. Ions move down their gradients through channels. This creates a difference in charge, which gives rise to the resting potential.

When the membrane potential at a particular location on the neuron's membrane gets more negative, this phenomenon is known as hyperpolarization. Depolarization, on the other hand, occurs when the membrane potential becomes less negative (more positive). Both depolarization and hyperpolarization can take place as a result of the opening and closing of ion channels in the membrane, which changes the rate at which certain types of ions can enter or leave the cell.

<em />

<em>Your question is incomplete, but most probably your full question was </em><em>Hyperpolarization means that the membrane potential becomes  Group of answer choices </em>

<em>more negative than the resting potential </em>

<em>more positive than the resting potential</em>

Learn more abour hyperpolarization here:

brainly.com/question/12982897

#SPJ4

3 0
1 year ago
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Biodervasity.

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The term refers to the variety of life on earth.It demonstrates the extent of variation at different levels of species,genetic and ecosystem in a community of organisms.

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How do we know that food isn't causing the population growth?
MariettaO [177]
Maybe because food was here before the population even started to grow?‍♀️
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