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Hunter-Best [27]
4 years ago
14

What is the placenta, and what is its role in fetal circulation?

Biology
1 answer:
mote1985 [20]4 years ago
7 0

The prenatal circulation of blood is different than the postnatal circulation, mainly because the lungs are not in use. The fetus obtains oxygen and nutrients from the mother through the placenta and the umbilical cord. Blood from the placenta is carried to the fetus by the umbilical vein.

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2. What biosecurity measures does the hatchery take?<br> Enter your answer
Cloud [144]

Answer:

Provide a closed environment.

Clean the hatch chamber with chemical.

Explanation:

Biosecurity  is a measure which is taken in order to protect or prevent the population of existing species from infestation of harmful organisms and chemical substances. The hatchery should provide a closed environment in order to prevent the entry of harmful organism. Cleaning of the chamber where eggs were hatched with chemicals in order reduce the infestation of microorganism.

7 0
4 years ago
Consider the shape and structure of the virus in the diagram. Which viral shape is shown?
enot [183]
The choice is C i just took that quiz

I hope this helps!!!
8 0
3 years ago
Read 2 more answers
The interior surface of a neuron's plasma membrane at resting membrane potential will have a ________.
Marta_Voda [28]
I'm not sure but if you are talking about cells I think it is cytoplasm.
4 0
3 years ago
What role does glucose play in cellular respiration?
sleet_krkn [62]
They are reactants because they are present before the reaction
6 0
3 years ago
Read 2 more answers
You observed many sand hill cranes on your walk. Two sand hill cranes flapped their wings and hopped up and down when you walked
Anarel [89]

Answer:

This question lacks options, the options are:

A) symbiosis

B) ecosystem

C) community

D) population

E) biosphere

The answer is D) Population

Explanation:

Living organisms in an ecosystem are usually found in numbers living together in a given area. This is termed POPULATION in ecology. A population refers to the group of living organisms that belongs to the same species living together in the same habitat and have the ability to interbreed i.e. mate and reproduce with one another.

This is the case in this question where many sandhill cranes (large flying birds) were observed in a particular area, which represented their habitat. Asides the group of sandhill cranes living together, they were also observed to be interbreeding. This was evident in the observation of two sandhill cranes hopping up and down around their bright orange baby. This shows that members of the population are capable of mating and reproducing fertile offsprings.

This observation completes what a POPULATION is all about, hence, a population was observed.

5 0
3 years ago
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