Tag: marine life

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Questions Related to marine life

Multiple choice zoology environmental factors environmental factors and their measurements climate factors marine life

The blueness of the sky is mainly due to

  1. Absorption of blue light by the atmosphere

  2. Scattering of sunlight by air molecules

  3. Emission of blue light by air

  4. Presence of water vapor
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The blue color of the sky is caused by Rayleigh scattering, where shorter wavelengths (blue light) are scattered more efficiently by air molecules than longer wavelengths.

Multiple choice zoology environmental factors environmental factors and their measurements climate factors marine life

Biome is ____________.

  1. part of the planet and its atmosphere

  2. Interacting communities of organism and its environments

  3. Biotic flora of a place

  4. Biotic fauna of a place
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Biome is an interaction between various communities of organisms and the environment they live in. These communities of organisms dwell in similar geographical, climatic and other biotic factors.

Example-Tundra, Grasslands etc
So, the correct answer is 'Interacting communities of organism and its environments'


Multiple choice zoology environmental factors environmental factors and their measurements climate factors marine life

Species diversity generally increases as one
proceeds from


  1. Low altitude to high altitude, and from low latitudes to high latitudes

  2. High altitude to low altitude, and from low latitudes to high latitudes

  3. High altitude to low altitude, and from high latitudes to low latitudes

  4. Low altitude to high altitude, and from high latitudes to low latitudes
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The environmental conditions in these region are favourable and hence species have become diversified.

Multiple choice zoology environmental factors environmental factors and their measurements climate factors marine life

During unfavourable conditions most of the fresh water sponges and few marine sponges from gemmules, they are

  1. Reduction bodies

  2. External buds

  3. Internal buds

  4. Masses of interstitial cells surrounded by spicules
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
Gemmules are internal buds containing archaeocytes, mostly found in freshwater sponges, these are concerned with asexual reproduction.
These are formed by the sponges under unfavourable conditions.
So, the correct option is 'internal buds'

Multiple choice zoology environmental factors environmental factors and their measurements climate factors marine life

An endotherm

  1. Grasshopper

  2. Hydra

  3. Earthworm

  4. Blue jay

  5. Frog
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The organisms that use external heat to maintain their body temperature are termed as ectotherms while those maintaining their body temperature using the metabolic heat are termed as endotherms (mammals and aves). Among the given options, Blue jay (aves) is endotherms. 

Therefore, the correct answer is option D.

Multiple choice zoology environmental factors environmental factors and their measurements climate factors marine life

State whether the following statements are true or false .
All living things contain a vital force that gives them the characteristics of life.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

At the molecular level even living things are fundamentally made up of all the elements that make non-living matter. There have been attempts to make these molecules and their integration to create life by scientists but none of them has been successful yet. Hence, it is often believed that there is a vital force that can not be created by us that gives organisms characteristics of life. 

So, the correct option is 'True'.