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

Two opposite forces operate in growth and development of every population. One of them has ability to reproduce at a given rate.

  1. Morbidity

  2. Fecundity

  3. Biotic potential

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

Biotic potential refers to the maximum reproductive capacity of an organism under optimal environmental conditions. It works in opposition to environmental resistance, which limits population growth based on resource availability and environmental constraints.

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

A red shirt

  1. Selectively absorbs red wavelenghts of visible light and scatters the rest

  2. Selectively scatters red wavelenghts of visible light and absorbs the rest

  3. Above all

  4. None of above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

An object appears red because it reflects (scatters) red wavelengths of light and absorbs the other wavelengths in the visible spectrum.

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

UNCED stands for.

  1. United Nations Council for European Development

  2. United Nations Conference on Environment and Development

  3. United National Commission for Economic Development

  4. United Nations Councils for Economic Development

  5. United Nations Commission for Environment Development
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

UNCED refers to the United Nations Conference on Environment and Development, also known as the Earth Summit held in Rio de Janeiro in 1992.

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

Which of the following options is correct?
     Homoiothermic                           Poililothermic
      organism                                       organism    

  1. MAN Cow

  2. Cockroach Man

  3. Lizard Frog

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

Animals with constant body temperature are called homoootherms. They have insulating coat to check the loss of body heat. This coat consists of hair in most mammals, blubber (subcutaneous fat) in whales and perspiration cools down the body of these animals when required.These are also termed endothermic as they regulate their body temperature by physio;logical means and maintain more or less constant internal temperature. Poililotherms are cold-blooded animals which are unable to regulate their body temperature which changes with change in temperature of environment e.g. fish, frog, lizard. They are also called as ectothems.

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

Statement 1: Tropical rainforests are disappearing fast from developing countries such as India.
Statement 2: No value is attached to these forests because these are poor in biodiversity. 

  1. Both statements 1 and 2 2 are correct.

  2. Statement 1 is correct but statement 2 is incorrect.

  3. Statement 1 is incorrect but statement 2 is correct.

  4. Both statement 1 and 2 are incorrect.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Tropical rainforests are disappearing fastly from India due to deforestation, habitat loss and fragmentation. These forests are of extreme value since they contain the maximum biodiversity.  

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

Which of the following statements is correct? 

  1. The flora of a place is heavily defined by availability and quality if water.

  2. The availability of light on land is closely linked with that of temperature since Sun is the source for both.

  3. Topography does not affect biodiversity

  4. Soil composition also affects the seepage of water in to ground.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Topography means the physical features of a place such as hills, plains, slopes, rocks, valleys,etc. The topography affects the distribution of organisms directly or indirectly by influencing other factors, such as light intensity, wind velocity nature of sol, rainfall water currents or wave action. 

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

The amount of energy the earth receives from the sun, per year is 

  1. 1000 k calories

  2. 10\times10^{30} calaories

  3. 5\times10^{20} calaories

  4. 10\times10^{23} calaories
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The sun's surface emits about 63 million watts of energy per square meter. By the time it reaches the Earth, after traveling 150 million kilometers, or 93 million miles, it has dimnished to 1,370 watts per square meter which are equal to thousand of kilocalories.

so, the correct option is '1000 Kcalories'.

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

Which of the following is an example of environmental variation?

  1. Apu is a tongue roller, but his brother Sanjay is not.

  2. Marge dyes her hair blue.

  3. Homer inherited baldness from his father's side of the family.

  4. Patti and Selma have hanging ear lobes.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Environmental variation refers to differences in traits caused by external factors rather than genetics. Dyeing hair is an acquired trait influenced by the environment, not inherited.

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

Which the following statement is incorrect?

  1. Osmoconformers are able to maintain osmotic concentration of their cells by either physiological or behavioral means

  2. Most vertebrates, except the birds and mammals are unable to theregulate

  3. Success of mammals is mainly due to their ability to thermoregulate and live comfortably whether they are in Antarctica or in Sahara desert.

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

Osmocoformers are the organisms that change the osmotic concentration of their body with the change in ambient conditions. Their body fluids are in osmotic balance with the environment For many marine invertebrates the osmolarity and ionic concentrations of their body fluids are similar to those of the sea water in which they live.