All categories

2 years ago

What's the main characteristic of porosity?

Biology

1 answer:

aev [14]2 years ago

6 0

Answer:

The answer should be D

Explanation:

because poroslty of a rock is a measure of its ability to hold a fluid. mathematically, it is the open space in rock divided by the total rock volume.

You might be interested in

I need help. Write a short paragraph that compares the reproductive structures of gymnosperms and angiosperms

Hitman42 [59]

Answer:

Angiosperms are plants with flowers, gymnosperms are plants that do not have flowers. Both groups belong to spermatophytes or seed plants.Gymnosperms are seed-producing plants that do not possess flowers. In gymnosperms, the flowers are replaced by cones, which lack ovaries.

Explanation:

5 0

2 years ago

True or false as a wave approaches the shore friction causes the wavelength to grow longer?

Zanzabum

The answer is would be true

4 0

3 years ago

Read 2 more answers

Blue, brown, and green beetles from a forest migrated to a rocky mountain after a natural disaster. In the new environment, brow

Natasha2012 [34]

Answer: Most of the beetles will be brown because they have a higher likelihood of reaching reproductive age.

Natural selection is the process of selection by nature in which an individual organism exhibiting more favorable phenotypic characteristics has more chances of survival and reproduction in it's corresponding environment.

In the new environment, brown beetles can camouflage themselves from predators better than the green beetles and blue beetles can. This is because of the fact that brown color of beetle is a better phenotypic trait which favors the survival of brown beetles over green and blue color. Therefore, the survived brown beetles will reproduce and grow in number.

4 0

3 years ago

Read 2 more answers

Which is the most specific group? *<br> A. Genus<br> B. Family<br> C. Order<br> D. Phylum

kiruha [24]

Answer: genus

Explanation:

5 0

3 years ago

Read 2 more answers

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