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sergey [27]
2 years ago
10

Please help!! !! thank you !!

Biology
1 answer:
cluponka [151]2 years ago
3 0

Answer:

help on what????

Explanation:

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The rock labeled “B” is <br> A.igneous<br> B.metamorphic<br> C.sedimentary<br> D.magma
zlopas [31]

Answer:

igneous

Explanation:

When magma/lava (C on thr diagram) cools and hardens, the resulting rock (B) is known as igneous

3 0
3 years ago
Match the functional groups with their structures:
evablogger [386]
The true answer of your question is :

OH : HYDROXYL GROUP

NH2 : AMINO GROUP

CH3 : METHYL GROUP ( but in rather broader terms, that functional group of formula CnH2n+1 where n is an integer is called ALKYL GROUP where by substituting n by 1,2,3... we obtain methyl for n = 1, ethyl for n = 2, and propyl for n = 3 )

COOH : CARBOXYL GROUP is the correct answer since carbonyl is characterized by the presence of functional group C=O in general the formula of the compound would be
R-C=O-R’ where R and R’ are alkyl groups like methyl for example. However the carboxyl group could be thought of as a summation of carbonyl + hydroxyl ( CO + OH ) resulting thus in COOH.

I hope you’ll understand everything, anyway if not i’m always here to help. ♥️
7 0
3 years ago
Which three of the following statements accurately describe the blood buffering system in humans? the blood buffering system . .
Bogdan [553]
The truth about blood buffering is that 1). mantains the ph of blood near to 7.4. 2) utilizes the H2CO3/HCO3– conjugate acid/base pair and 3) is facilitated by the enzyme carbonic anhydrase, which interconverts carbon dioxide and water to carbonic acid. Have in mind that the buffer is written as the following: <span>CO2(aq) + H2O(l) <==> H+(aq) + HCO3^-(aq) </span>
8 0
3 years ago
In phototropism, give examples of a positive and a negative response in a plant.
Ghella [55]

Answer:

Phototropism refers to the movement of of plant body or parts towards or away from the light. There are two types of phototropism i. e. positive phototropism and negative phototropism.

In positive phototropism, the parts of plant body moves toward light. Movements of radical in the upward direction after seed emergence is the example of positive phototropism.

In negative phototropism, the body part of plant moves away from the light. Roots are the example of negative phototropism.

8 0
3 years ago
Read 2 more answers
Carol's last credit card statement said that she had an account balance of -$107. Which of the following account balances repres
Tom [10]
The correct answer is C. Hope this helps
8 0
3 years ago
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