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
lions [1.4K]
3 years ago
15

To enter or leave a cell substance must be through

Biology
2 answers:
gayaneshka [121]3 years ago
6 0

c - the plasma membrane

The plasma membrane is barrier between the outside and the inside of the cell

Maksim231197 [3]3 years ago
5 0

Answer:

d - the nucleus

I hope it helps......

You might be interested in
A study was conducted in men aged 40-70 in order to determine whether exercising for 2 or more hours per week decreases the like
Blizzard [7]

Answer: alternative A.

Explanation: In this case, we will consider people that already have had a heart attack. In this specific group of 1,000 people, 236 exercised regularly and had gone through this situation.

We can infer that 23.6% of people who exercised regularly have experienced that by dividing 236/1,000= 0.236= 23.6%.

If 236 people exercised, 1,000-236=764 didn't exercise regularly prior to their heart attacks, so 74.6% were considered to be sedentary.

If there's 0.236 chance out of 1 to exercise and still have a heart attack compared to 0.764 out of 1 to be sedentary and have the same experience, we can divide both ratios to compare them, so 0.236/0.764= 0.3089.

Alternative A claims that people who exercise have around 0.5 chance of having heart attacks compared to people who don't. Since our ratio resulted in 0.3089, we consider this number the closest to 0.5. Alternative <u>B is absurd because in order for people who exercise to have 2x the risk compared to people who don't, the number of people who exercised and went through that must be 2x bigger than people who didn't</u>. Alternative <u>C doesn't apply as well, because we already verified that the chance people who exercise have a heart attack equal to 23,6%. </u>

<u />

5 0
3 years ago
Cells use the energy available in food to make a final energy-rich compound called:
babunello [35]
Im pretty sure its glucose
6 0
3 years ago
Read 2 more answers
Which type of microscope is the most widely used and shows cells against a bright background?
gtnhenbr [62]
It is bright-field...............
8 0
3 years ago
It is unethical for a doctor to _____.
quester [9]

Release a patient information without consent

4 0
3 years ago
Read 2 more answers
The ocean has many different ecosystems, or communities of living organisms and their environment. Life in the ocean is more div
RUDIKE [14]
I might not be right but I think it’s B
5 0
3 years ago
Read 2 more answers
Other questions:
  • Select all that apply. The purposes of mitosis are _____. growth of organisms reproduction of gametes cell renewal repair of inj
    13·2 answers
  • Which of the following is an example of an emphasis on production quality?
    8·1 answer
  • Help, please<br><br> 14. How does the camouflage of a butterfly’s cocoon relates to function
    13·2 answers
  • Which of the following is not true about taiga?
    9·2 answers
  • In regards to photovoltaic cells found in solar panels scientists are researching types of batteries to store the energy in when
    14·2 answers
  • What did Watson and Crick’s model of DNA show?
    7·2 answers
  • What kind of reactions provide a star with energy?<br><br> HELP ME
    5·1 answer
  • What bones are most vulnerable to osteoporosis and why??
    8·1 answer
  • I need help with this it’s due at 12:00 PM
    14·1 answer
  • If a koala bear has sixteen pairs of chromosomes, what are the possible
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!