STD 11 - 7. Structural organisation in animal — NEET STD 11 Science — Question

Which one of the following is not the function of placenta?

Out of the following one disease is caused by virus

Assertion : Cancer cells are virtually immortal until the body in which they reside dies.

Reason : Cancer is caused by damage to genes regulating the cell division cycle.

The granulocyte to arrive first at the site of an infection is

Under a given concentration in blood, dissociation of oxyhaemoglobin will increase if

In which blood corpuscles, the HIV undergoes replication and produces progeny viruses?

Assertion: Every 100 ml of oxygenated blood can deliver around 4 ml of O, to the tissues under normal physiological conditions.
Reason: Every 100 ml of deoxygenated blood delivers approximately 5 ml of CO, to the alveoli.

The ductless glands

Which of the following changes usually tends to occur in plain dwellers when they move to the high altitudes?
1. Increased breathing rate.
2. Increased RBC production.
3. Increased WBC Production.
4. Increased thrombocyte count.
Choose the correct option.