Question

(e) ls virus a living thing or non-living thing? Explain your answer
19. The given shows a foetus in the uterus immediately before birth.
B В
placenta
umblical cord
amniotic
fluid
amniotic
sac
A
(a)Describe the functions of the amniotic sac and amniotic fluid.
(b)List three functions of the placenta
(c)State what happens to structures A and B during birth.
20. The figure shows an animal cell and a plant cell as seen with a light microscope​

Answer 1

Answer:

e) a virus is at the edge of living and non living things

Explanation:

it enters the body, then is considered living

rest i dont know, sorry! i am in 9th only .

Answer 2

Answer:

e) Viruses are not made out of cells, they can't keep themselves in a stable state, they don't grow, and they can't make their own energy. Even though they definitely replicate and adapt to their environment, viruses are more like androids than real living organisms.

a) amniotic sac and its filling provide a liquid that surrounds and cushions the fetus. It is a site of exchange of essential substances, such as oxygen, between the umbilical cord and the fetus. It allows the fetus to move freely within the walls of the uterus.

b) Functions of the placenta include gas exchange, metabolic transfer, hormone secretion, and fetal protection.