Question

2.
Draw
diagram
of
human
heart
and
label
pulmonary
artery
,
right
and
left
atria
,
right
D. Long Answer Type Questions
1. Explain the excretory system in human beings.
left ventricles, septa, pulmonary vein and aorta.
3. Explain the structure and working of heart?
4. Identify the following figure and mark the labels.
(1)
(2)
A​

Answer 1

Answer:

The heart works as two pumps, one on the right and one on the left, working simultaneously. Blood flows from the right atrium to the right ventricle, and then is pumped to the lungs to receive oxygen. From the lungs, the blood flows to the left atrium, then to the left ventricle.

hope it helps

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l

Answer 2

Answer: this is drawn by me

here is your answers.....

1) excretory system is the system of an organism's body that performs the function of excretion,the bodily process of discharge wastes.

2) pulmonary vein; this veins open into the left auricle.they bring in oxygenated blood from the lungs

Explanation:

hope it is helpful for you...........