1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
pickupchik [31]
3 years ago
15

______ forms channels in the cell membrane to allow certain molecules to pass into and out of the cell

Biology
1 answer:
lawyer [7]3 years ago
5 0
The correct answer is Proteins
You might be interested in
Really need this, appreciate any help
Alex_Xolod [135]

answer:

if i were you i would copy the entire question into the search bar on brainly or on your regular seach engine

explanation:

it'll come up when you seach it on google or brainly

also quick tip instead of putting it as as image paste the question and the options and ask your question that way its clearer and other people can look up your question easily if they have the same one!

6 0
3 years ago
2. Which of the following sets of terms is associated with air pollution caused by burning fossil fuels?
stellarik [79]

Answer:

Question 4 is (C.) I think.

3 0
3 years ago
Read 2 more answers
Besides through direct contact, how can communicable diseases spread from one person to another? Check all that apply. indirectl
sweet [91]

All of them, when a disease infects an object it can last for a long time if not cleaned

5 0
3 years ago
True or false: channel proteins and carrier proteins are both transport proteins
Ilia_Sergeevich [38]
True. I hope this helps you out Orona! :D :D :D :D 
3 0
3 years ago
Read 2 more answers
What is the sequence of layers of the blood vessels (veins or arteries) from outside to the inside? A. Tunica intima, tunica med
Rashid [163]

Answer: The correct option is D (Tunica externa, tunica media, tunica intima)

Explanation:

Blood vessels are channels through which blood is distributed to all the cells of the body. They are classified into 3 based on their structure and function. These includes;

- Arteries: They carry blood away from the heart.

- Capillaries: They help in exchange of materials between blood and tissue cells.

- Veins: They are known to carry blood towards the heart.

The walls of arteries and veins have the same three layers which includes;

1.) Tunica external: this is the outermost layer which consists of elastic and collagen.

2.) Tunica media: this is the middle layer which is made up of smooth muscle.

3.) Tunica intima: it's a simple squamous epithelium surrounded by connective tissue.

I hope this helps, thanks.

3 0
3 years ago
Other questions:
  • Something very acidic has pH of
    15·1 answer
  • The mitochondria of eukaryotic cells release energy from glucose molecules through the process of cellular respiration. before c
    7·1 answer
  • In 1900 more than 30 percent of deaths in the U.STILL were caused by infectious disease. In 2005 what percent of deaths were cau
    9·1 answer
  • One way the body fights invaders is by increasing the body temperature, or running a fever. Give a brief explanation as
    15·1 answer
  • You are an experienced naturalist and biologist and you observe two birds mating that you do not believe are members of the same
    12·1 answer
  • How do many coal-powered factories change the environment?
    5·2 answers
  • When you sit indoors near a window on a sunny day your skin gets warm how does this happen?
    11·1 answer
  • Please help I’ll mark you as brainliest if correct! #2
    14·1 answer
  • AG CLASS
    14·1 answer
  • How many set of nerves are there in the human body ​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!