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
Natasha_Volkova [10]
3 years ago
13

In humans, the placenta is essential to the embryo for

Biology
1 answer:
lianna [129]3 years ago
4 0

Question options:

(1)nutrition, excretion, and reproduction

(2)respiration, nutrition, and excretion

(3)movement, reproduction, and nutrition

(4)coordination, movement, and growth

Answer:

(2)respiration, nutrition, and excretion

Explanation:

The placenta between the mother and the fetus has three main function.

- Attach the fetus to the uterine wall.

- Provide nutrients to the fetus.

- Allow the fetus to transfer waste products to the mother's blood.

The placenta refers to an organ in the uterus of mother that is responsible for nourishing and maintaining the fetus through the umbilical cord. The placenta also has many other functions but primarily it plays critical roles in the nutrition, respiration and excretion of the fetus. Its other functions include: production of hormones, production of immunity for the fetus for prevention from infections, etc. 

You might be interested in
Fossil fuels include
kap26 [50]
There are 8 types of fossil fuels. The 8 types of fossil fuels are Crude Oil, Gasoline, Diesel, Fuel Oils, Natural Gas, Coal, Fuel Regulations, and Petroleum.
7 0
3 years ago
Read 2 more answers
List the consumers that eat both plants and animals.
ki77a [65]

Answer:

pigs, badgers, bears, coatis, civets, hedgehogs, opossums, skunks, sloths, squirrels, raccoons, chipmunks, mice, and rats. The hominidae, including humans, chimpanzees, gorillas and orangutans are also omnivores.

Explanation:

4 0
3 years ago
When scientists examined the whales' stomachs', they found proof that the whales died from a poison produced by algae, but the w
pishuonlain [190]

Explanation:

Its stomach was filled eith 30 plastic bags, and many smaller pieces of plastic. ... The whale was emaciated, and scientists believe that the plastic had gathered in such an amount in its stomach that it had created a plug, stopping the digestive process.

The cause of death appears to be starvation, though that's under investigation. Many of the stranded whales in 2019 have been malnourished, said David Weller, a research wildlife biologist with NOAA's Southwest Fisheries Science Center in La Jolla, California.

6 0
3 years ago
Read 2 more answers
I need help with this
poizon [28]

Answer:

I know the answer

Explanation:

Yes

Yes

Yes

4 0
3 years ago
The predator<br> population peaks____<br> the prey<br> population<br><br> Please help!!!!
Mashcka [7]

Answer:Just after

Explanation:As the prey population rises the more food there is for the Lynx

6 0
3 years ago
Read 2 more answers
Other questions:
  • Why does it matter if there is a difference between 160 calories in almonds compared to 160 calories in soda?
    10·1 answer
  • What is the species introduced into ecosystems, intentionally or unintentionally, and usually by humans? some can take over - pe
    15·1 answer
  • Who ever can answer this question gets to be the Brainliest!!!!
    15·2 answers
  • The Various kinases can be activated by breaks in DNA.
    8·1 answer
  • What is the climate like in South Asia
    7·1 answer
  • Write a paragraph that describes the path that one drop of water takes as it moves through the water cycle. In your paragraph, i
    8·1 answer
  • Write a 4 sentence summary of point source pollution.
    11·1 answer
  • Drag each tile to the correct location. Plants need to perform the processes of photosynthesis and cellular respiration. Label t
    12·1 answer
  • What type of tropism aids plants the most in photosynthesis?
    10·1 answer
  • Lisa is interested in studying the chemical processes in living organisms.
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!