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
Slav-nsk [51]
3 years ago
6

The...........is a structure that supplies oxygen and nutrients to the fetus .

Biology
1 answer:
Ilia_Sergeevich [38]3 years ago
6 0

Answer:

The answer is D.

The Placenta

Explanation:

You might be interested in
Pumps are transporters that are able to harness energy provided by other components in the cells to drive the movement of solute
Oduvanchick [21]
This type of transport is called active transport
6 0
3 years ago
Productivity increases when A. outputs decrease while inputs remain the same. B. inputs increase while outputs remain the same.
Evgesh-ka [11]

Answer:

C

Explanation:

For productivity to increase, it require an increase in the input which has to be directly proportional to an increase in the output

3 0
3 years ago
Give reasons why the energy level decrease as you move down a food chain..
avanturin [10]

Answer: Energy decreases as it moves up trophic levels because energy is lost as metabolic heat when the organisms from one trophic level are consumed by organisms from the next level. Trophic level transfer efficiency (TLTE) measures the amount of energy that is transferred between trophic levels. or in materials that the consumer does not digest, or  through movement

Hope it helps! ^w^

6 0
2 years ago
Cellulose, chitin, and peptidoglycan function as structural molecules and withstand pulling and pushing forces well. which struc
V125BC [204]

Cellulose, chitin, and peptidoglycan are all considered as carbohydrates. Now in the molecular level of these carbohydrates, structural polysaccharides exist as sets of long, parallel strands that are linked to one another. Due to this arrangement, pulling and pushing forces are being withstand.

4 0
4 years ago
Is this an observation or an inference: there are tracks from three different animals in the rock.
Anvisha [2.4K]
It is an inference that
<span> there are tracks from three different animals in the rock.</span>
6 0
3 years ago
Other questions:
  • How has urbanization changed land,air and water quality
    5·1 answer
  • What type of energy is made during photosynthesis
    6·2 answers
  • A rare genetic condition causes dwarfism and immunodeficiencies. Which of the following is the most likely cause of this conditi
    6·1 answer
  • Please help me answer this question!
    15·1 answer
  • What creates our climate?
    6·1 answer
  • Consider the skeleton.
    12·1 answer
  • We can determine the velocity of a wave when given the frequency and the
    8·1 answer
  • List six alternative energy sources.
    14·1 answer
  • State the function of red blood cells.<br>​
    7·2 answers
  • Which scale A,B,or C is closet to 1.3
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!