Biology - Study Mode

[#276] Placenta is the structure formed
Correct Answer

(A) by the union of foetal and uterine tissue

Explanation

Solution: Placenta is the structure formed by the union of foetal and uterine tissue.

[#277] Plants hormone that induces cell division is
Correct Answer

(C) cytokinins

Explanation

Solution: Plants hormone that induces cell division is cytokinins.

[#278] Neurospora is used as genetic material because
Correct Answer

(A) it has short life cycle of 10 days

Explanation

Solution: Neurospora is used as genetic material because it has short life cycle of 10 days.

[#279] Phloem is a tissue found in
Correct Answer

(B) plants

Explanation

Solution: Phloem, also called bast, tissues in plants that conduct foods made in the leaves to all other parts of the plant. Phloem is composed of various specialized cells called sieve tubes, companion cells, phloem fibres, and phloem parenchyma cells.

[#280] N 2 content is kept constant in the biosphere due to
Correct Answer

(C) nitrogen cycle

Explanation

Solution: N 2 content is kept constant in the biosphere due to nitrogen cycle.