Biology - Study Mode

[#421] Antibody is produced by
Correct Answer

(A) B-lymphocytes

Explanation

Solution: Antibody is produced by B-lymphocytes.

[#422] In man which organisms cause abscesses on the skin of arms or legs?
Correct Answer

(C) Suinea worm

Explanation

Solution: In man Suinea worm cause abscesses on the skin of arms or legs

[#423] Which disease killed more peoples than any other death causing factors including all other diseases, natural calamities and wars?
Correct Answer

(C) Malaria

Explanation

Solution: Malaria killed more peoples than any other death causing factors including all other diseases, natural calamities and wars.

[#424] Which of the following is the largest phylum in the animal kingdom in respect of number of species?
Correct Answer

(D) Arthropoda

Explanation

Solution: Arthropoda is by far the largest phylum in the animal kingdom. It includes insects, lobsters, mites, crabs etc. A recent estimate of the number of arthropods on Earth today is 3.7 million species.

[#425] It is stiff rod of special cells surrounded by connective tissue present in the mid-dorsal region and appears in the embryos of all chordates.
Correct Answer

(B) Notochord

Explanation

Solution: Notochord is stiff rod of special cells surrounded by connective tissue present in the mid-dorsal region and appears in the embryos of all chordates.