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
Oxana [17]
3 years ago
13

4The purpose of this cellular structure is to border the cytoplasm.

Biology
2 answers:
Fiesta28 [93]3 years ago
8 0

Answer:

it's D NUCLEUS

Explanation:

m_a_m_a [10]3 years ago
3 0
The answer is D,Nucleus I think
You might be interested in
Differences between an artificial and a "normal" heart.
____ [38]
An artificial heart has been altered by man in some way. Like if they had a valve replaced it becomes artificial.
7 0
3 years ago
plz help! explain how science uses fossil evidence to support the theory of evolution. ​(I will mark brainliest)
vagabundo [1.1K]

Answer:skeletal evidence of evolution

Explanation:

So I’m not sure the best way to explain this, will edit in one second

So basically some creatures have leftover bones or other features that have no benefit but they also aren’t detrimental, and they are the result of evolution. There is a great video on bad animal skeletons by Sam O Nella Academy, it has some strong languages so inappropriate jokes, probably, all of them do, and this is middle school biology so watch at your own risk, but I think a pint you could bring up that your teacher would be impressed by is really any animal with a weird skeleton, for example dolphins who just have a random bone image where their legs used to be, they obviously don’t have legs but their ancestors did and to this day they still have a random bit of bone where an ancestor of theirs used to have legs, so skeletons help connect what a common ancestor looked like to what the current species looks like through similar bone structure and/or left over bones, such as dolphins who have a plate where an ancestor used to have legs

8 0
3 years ago
B cells produce ____________________ that bind to a specific antigen and stops it from invading future body cells.
grigory [225]

answer is antibodies.

B cells are a type of lymphocytes and it is responsible for the immune system. B cells help to protect body by producing specific antibodies to fight against each antigen which are strangers to the body specially for viral infections.
8 0
3 years ago
Read 2 more answers
Is soap a base or acid and why?
AlekseyPX

Answer:

Soap is a basic

Explanation:

Soap is a combination of a weak acid (fatty acids) and a strong base (lye), which results in what is known as “alkalai salt,” or a salt that is basic on the pH scale.

6 0
3 years ago
Read 2 more answers
What causes lighting
belka [17]
Particles from the top of the cloud get heavier and go to the bottom of the cloud also when positive and negative charges grow large enough
6 0
3 years ago
Other questions:
  • The atmospheric greenhouse effect is due primarily to the fact that
    6·1 answer
  • If you take into account the amount of ATP generated by ATP synthase per molecule of NADH produced in aerobic respiration, the n
    9·1 answer
  • Which is an example of biodiversity contributing to the sustainability of an ecosystem?
    5·2 answers
  • Chlorophyll transfers what to other plant molecules in photosynthesis
    10·1 answer
  • Amolecule of dna was found to contain 120 adenine and 120 guanine bases.how many nucleotides comprise this molecule of dna?
    9·1 answer
  • Explain how this enables the bacterium to detect the population density
    6·2 answers
  • The illustration shows a kind of animal that is a free living organism what is the common name of the group that contains this o
    6·1 answer
  • Help ! Help ! Help ?
    9·1 answer
  • Plzzzzzzzzzzzzzzzzzzz help I am on a test
    11·1 answer
  • If a secondary consumer had 3 million calories of energy, how many calories are available to the tertiary consumer?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!