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
kaheart [24]
3 years ago
12

Choose the best answer.

Biology
1 answer:
GenaCL600 [577]3 years ago
6 0

Answer: a. plasma membrame

Explanation:

it's not b becasue a cell wall is composed of many cells. c and d are compoments of a cell found within it. which leaves us with a. plasma membrame, the protective layer that seperated the cell with its outside environment.

hope this helped! ♡

You might be interested in
4 The graph below shows how the activity of an enzyme changes
choli [55]

Answer:

A

Explanation:

A. The optimum pH of the enzyme is 6.6.  - this is true. The optimum pH of the enzyme is where its activity is the highest. On the graph, this is pH 6.6 (activity at 100)

B. The optimum pH of the enzyme is 5.8.  - this is false, the activity of the enzyme peaks at 6.6 (100), at 5.8 the activity is 80

C. The enzyme's activity is greater around pH 8.0 than around  pH 5.0  - This is false, the activity at pH 5 is 50, whereas at around 8 it is 20.

D . The enzyme's activity continually increases as pH increases  from 5.0 to 9.0 - this is false. The activity drops between pH 6.6 and pH 9.

6 0
3 years ago
How did the colors of each type of prey affect its population size over time
aniked [119]
It eats a lot that's how it changes colors
8 0
3 years ago
Which of these is NOT a function of the circulatory system?
SashulF [63]
D, correct me if i’m wrong
5 0
3 years ago
What is the one thing every living thing must either make or get from another living thing?
valkas [14]
<span>Every living thing needs food. Whether it makes it, or gets it from another living thing by eating that living thing. No living thing can survive without a food source. Food is where you get the energy for life.</span>
3 0
3 years ago
A red blood cell has a diameter of approximately 8 micrometers, or 0.008 A model represents its diameter as 8 um. What is the ra
Marianna [84]

Answer:

10

Explanation:

got it right for me

4 0
3 years ago
Other questions:
  • What are some functions that are similar in both nerve cells and muscle cells?
    10·1 answer
  • The number of chromosomes present in gametes
    5·1 answer
  • BRAINLEST
    9·2 answers
  • Plants do not have a circulatory system like that of some animals. If a water molecule in a plant did circulate it would require
    8·1 answer
  • Lorek lives near the North Pole. The snow in his backyard adds water to the atmosphere through ____. )transpiration )evaporation
    15·1 answer
  • suggest one or two simple experiments To determine whether a solid white substance is a lipid or a carbohydrate. What evidence w
    12·1 answer
  • The total environment of plants, animals, and the physical characteristics in which they live are called ____________ . Grouping
    14·1 answer
  • A nurse is trying to determine whether a pregnant woman's membranes have ruptured. what findings support the conclusion that the
    11·1 answer
  • 11. Which factor best explains the reason that average summer
    15·2 answers
  • What are the products of photosynthesis
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!