Biology

The neurone that relay the message of effector organs are called?

A. efferent neurones B. intermediate neurones C. afferent neurones D. spinal nerves Correct Answer: Option A A. efferent neurones

6 years ago

The nerves that arise from the brain are known as?

A. spinal nerves B. sacral nerves C. cranial nerves D. optic nerves Correct Answer: Option C C. cranial nerves

6 years ago

Which of the following is responsible for the increased heartbeat of a boy who saw a python? increased production of

A. adrenalin B. insulin C. pituitrin D. thyroxin Correct Answer: Option A A. adrenalin

6 years ago

The organs constantly in touch with the liver are?

A. pancreas, colon and caecum B. duodenum and stomach C. illeum, stomach and colon D. stomach and gall bladder Correct…

6 years ago

Which of the following conditions will cause a decrease in body temperature?

A. increased metabolism B. Shivering C. Vasoconstriction of capillaries of the skin D. Relaxation of the erector muscles Correct Answer:…

6 years ago

When a mammal respires anaerobically for a long time?

A. pyruvic acid is convened into acetyl COA B. more energy is released from fats in the body C. lactic…

6 years ago

Which of the following structures is not present in the vascular bundles of a dicot stem?

A. Xylem B. Phloem C. lntra-fascicular cambium D. Inter-fascicular cambium Correct Answer: Option C C. lntra-fascicular cambium

6 years ago

The following are useful effect of micro-organisms except?

A. production of vaccines B. curing of tobacco C. tanning of leather D. decay of meat Correct Answer: Option D…

6 years ago

Which of the following plant parts does not perform supportive function?

A. Parenchyma, xylem and collenchyma B. Epidermis, sclerenchyma and xylem C. Parenchyma, collenchyma and sclerenchyma D. Sclerenchyma, xylem and collenchyma…

6 years ago

Which of the following organisms has the largest surface-area-to-volume ratio?

A. Man B. Earthworm C. Amoeba D. Grasshopper Correct Answer: Option C C. Amoeba

6 years ago