Tag: biology

Quizzes (1160) Questions (12174)

Questions Related to biology

Multiple choice biology water a precious resource sources of water and water cycle availability and forms of water the water cycle

The solid form, snow and ice, is present as

  1. Ice caps at the poles of the earth.

  2. Snow-covered mountains.

  3. Glaciers.

  4. Ice caps at the poles of the earth, snow-covered mountains and glaciers.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The solid form, snow and ice, is present as ice caps at the poles of the earth,  snow-covered mountains and glaciers.

Multiple choice biology water a precious resource sources of water and water cycle availability and forms of water the water cycle

The continuous cycling of water among its three forms keeps:

  1. the total amount of water on the earth constant

  2. the total amount of water on the earth decreasing continuously

  3. water fresh

  4. none of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The continuous cycling of water among its three forms keeps the total amount of water on the earth constant.

Multiple choice biology water a precious resource sources of water and water cycle availability and forms of water the water cycle

Mullets, bhetki, pearl spots, prawns, mussels are the examples of 

  1. marine fish

  2. fresh water fish

  3. finned fish

  4. shell fish.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Fresh water fisheries are found in ponds, tanks, rivers and various water bodies catla, rohu, mullets, and bhetki are some fresh water fisheries. They have important contribution to the growth of the economy of the country. There has been a very impressive growth in fish production during 1990's in the country.

Multiple choice biology control and coordination in living organisms kidney hormones coordination in human beings- chemical control endocrine system in humans

Which of the following hormones is secreted by the kidney?

  1. Renin

  2. Renomedullary prostaglandin

  3. Erythropoietin

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The human kidney secretes many hormones: erythropoietin (EPO), calcitriol, vitamin $D _3$, as well as the enzyme renin. The kidneys also produce prostaglandins.

Multiple choice biology chemical coordination and integration kidney hormones coordination in human beings- chemical control endocrine system in humans

Which of the following is NOT produced by kidneys?

  1. Calcitriol

  2. Erythropoietin

  3. Angiotensinogen

  4. Renin
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Calcitrol is produced by the cells of the proximal tubule of the nephron in the kidneys. Erythropoietin is also produced by the kidney. Renin is secreted by the juxtaglomerular kidney cells. Angiotensinogen is a component of the renin-angiotensin (RAS) system and is released into circulation mainly by the liver. So, the correct answer is 'Angiotensinogen'.