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aksik [14]
3 years ago
10

The atomic number is the number of ______ in an atom.

Biology
2 answers:
timama [110]3 years ago
5 0
The answer is (D) protons.
marshall27 [118]3 years ago
4 0

Answer:

It's D, protons. hope this helps you :)

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The cell cycle is regulated by checkpoints during the _______ phases.
Margarita [4]

Answer:

the end of G1 phase, end of G2 phase, and partway through M phase (the spindle checkpoint) to regulate the cell cycle.

Explanation:

4 0
2 years ago
True or false ? Too much nitrogen and phosphorus can alter the normal flow of nitroge
GaryK [48]

Answer:

false

Explanation:

3 0
2 years ago
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Which change in a limiting factor would increase the carrying capacity for american pikas in a talus field within an alpine tund
shusha [124]

Answer: B) decrease in number of rock fragments

Explanation:

Carrying capacity is the maximum size of the population of a species that an ecosystem can handle based on the availability of resources.

A limited factor is the factor that can be an abiotic or biotic agent is likely to affect the life of the living being.

American pikas are the small rodent-like mammals. These animals are short and stout. They have big, round ears and do not have tails. They have a brown and black coloration which helps them to hide behind the rocks and camouflage the predators.

Here, the decreased in rock fragments is a limiting factor which will increase the carrying capacity of American pikas. Due to lack of rock fragments, the American pikas will not be able to hide from predators and they will die. The size of the population will become by the supportive carrying capacity.

8 0
3 years ago
The question is marked with red color. Please help me
Alexus [3.1K]

Answer:

Deserts

Explanation:

Short for desertification

6 0
3 years ago
An inhibitory stimulus has occurred. B. Chemically gated potassium channels have opened. C. Excessive potassium has diffused out
andrezito [222]

Given question is incomplete. Complete question has been attached.

Answer:

C. Excessive potassium has diffused out causing hyperpolarization.

Explanation:

The nerve action potential can be divided into following stages:

  • Stimulus is detected by the cell in resting stage.
  • Sodium channels in the membrane open from where influx of sodium ions occur which is called depolarization
  • After a while, sodium channels close and potassium channels open from where efflux of potassium ions occur which is called repolarization.
  • The membrane potential further lowers due to continous efflux of potassium ions which is called hyperpolarization.
  • After a while potassium channels close and membrane returns to its resting stage.

In the given figure, stage 4 depicts hyperpolarization because the membrane potential has dropped to the lowest point below -70mV. Hence, option C is correct.

7 0
3 years ago
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