STD 11 - 4. Animal kingdom — NEET STD 11 Science — Question

Which one of the following statements is totally wrong about the occurrence of notochord, while the other three are correct?

Which blood group can be given to patients of any blood group

In the lower order of invertebrate animals how the respiration process take place?

Oxygen is transported to every cell of the body through

Select the Incorrect match

Other than the kidneys, lungs, liver and skin also help in the elimination of excretory wastes. Which of the following statements are not true ?
(i) Our lungs remove large amounts of CO₃ 200 ml/min and also significant quantities of water every day.
(ii) Liver, the largest gland in our body, secretes bile-containing substances like bilirubin, biliverdin, cholesterol, degraded steroid hormones, vitamins and drugs.
(iii) The sweat and sebaceous glands in the skin can eliminate certain substances through their secretions.
(iv) Sweat produced by the sweat glands is a watery fluid containing NaCl, large amounts of urea, citric acid, etc.
(v) Primary function of sweat is the removal of some of the wastes mentioned above, it also facilitate a cooling effect on the body surface.
(vi) Sebaceous glands eliminate certain substances like sterols, hydrocarbons and waxes through sebum.

Each nephron has two parts, which are

In Arthropoda, head and thorax are often fused to form cepalothorax, but one of the following classes is the body divide into head, thorax and abdomen

Commercial extraction of penicillin was done by