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Nuetrik [128]
3 years ago
10

Blackheads differ from whiteheads because whiteheads are covered by skin, whereas blackheads are open to the air. What causes th

e dark coloration
Biology
1 answer:
vfiekz [6]3 years ago
3 0

Answer:

Lipids within the sebum react with air, resulting in chemical oxidation and the formation of the black color.

Explanation:

This is the answer. I hope it helps you out.

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The inflammation that tissues undergo when they become injured or irritated:​
Rashid [163]
The inflammation will not occur with tissue that is dead & has no blood supply. The injury brings a decrease in white blood cells. The Mast Cells play a role in releasing histamine which dilate capillaries and bring about hypermia cause increase blood and swelling and redness to the area
3 0
3 years ago
In the story The Red Scooter Which TWO adjectives BEST describe Gary’s friends. *
DENIUS [597]

The two adjectives that BEST describe Gary’s friends are untrustworthy and envious (Options D and E). In this history, his friends are misusing Gary's motor scooter.

<h3>The Reed scooter</h3>

The Reed scooter is a history in which Gary's friends are misusing his beautiful motor scooter.

In this history (the Reed scooter) Gary learns the mechanical issues and drivetrain of a motor scooter.

Gary’s friends can be considered untrustworthy (they are not able to be relied on as truthful) and envious (they show feelings of envy).

Learn more about the term untrustworthy here:

brainly.com/question/25578076

8 0
3 years ago
Select the correct answer.
Marizza181 [45]

Answer:

Option D, the "biological ladder"

Explanation:

The food chain is the network of organism in which all are dependent on each other for their food, energy source and survival.  

The circle of life depicts the time frame starting from origin of a life form till its death and the intermediate stages.

The tree of life basically determines which organism has evolved from which other organisms.  

The biological ladder represents the development of species from simple form to a much complex form.

Hence, option D is the right metaphor

4 0
3 years ago
A force that creates something must be _____.
otez555 [7]
A force that creates something MUST be constructive force so the answer will be B.
8 0
4 years ago
Read 2 more answers
Can someone help me? :)
Anni [7]
The answer is B. The reason is because in an RNA strand, A turns into U.
4 0
3 years ago
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