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sukhopar [10]
2 years ago
9

Which statement correctly describes the rock cycle?

Biology
1 answer:
Ede4ka [16]2 years ago
6 0
I’m pretty sure it’s D, the others don’t make sense??
You might be interested in
What facts other than incorrect base pairing can alter DNA?
viva [34]
Mutation can cause DNA to change
4 0
3 years ago
Which gland is located closest to the human brain?
Lemur [1.5K]

Answer:

B. The <em>pituitary</em> gland

Explanation:

Can't be the ovaries, they're down by the hips!

Can't be adrenal glands, they're on top of the kidneys!

Can't be the thyroid, that's low on the front of the neck or something like that!

It's B, the pituitary; it's on the base of the brain.

Have a great day!

8 0
2 years ago
It takes approximately _____ action· potentials from olfactory receptors for us to perceive· an odor· .
taurus [48]
Action potentials (i.e. nerve impulses) occur in several types of animal cells<span>, called </span>excitable cells<span>, which include </span>neurons<span>, </span>muscle cells<span>, </span>endocrine<span> cells, and in some </span>plant cells<span>. </span><span>It takes around 40 action potentials for a smell sensation to be reported.</span>
3 0
3 years ago
Can solor activity cause climate change ?
antoniya [11.8K]

Answer:

"It has been suggested that changes in solar output might affect our climate—both directly, by changing the rate of solar heating of the Earth and atmosphere, and indirectly, by changing cloud forming processes..."

                                                                          - quoted from Google

Explanation:

So yes, it can cause climate change depending on what kind of activities occurs in the solar system.

7 0
3 years ago
Calculate the frequency of b cells specific for antigen a on day 36 if the antibody concentration on day 36 is about 8 × 103. (f
matrenka [14]
-The number of B cells producing the antibody is proportional to the concentration of that antibody.

-On day 16, one out of  100000 B cells are specific for antigen A
\frac{1}{100000} = 1 x 10⁻⁵ B cells

- on day 16, Antibody concentration is  2 × 10¹= 20 Antibodies
- on day 36, antibody concentration 8 × 10³.= 8000

20 antibodies ------------ 1 x 10⁻⁵ B cells
8000 antibodies--------------x

x= (8000 x 1 x 10⁻⁵)/ 20
x= 4x10⁻³ or 1 in 250 are <span>B cells specific for antigen A</span>
8 0
3 years ago
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