Five Hypotheses Explain How Species Richness Affects Community Services, Following statement are given

A) Community services decline with decreased species richness in a stepwise fashion.

B) Species that play the same roles in a community can compensate for each other if some are lost under particular conditions

C) Species richness declines even slightly from its natural levels, community services are reduced immediately

D) Community services change as the number of species increases or decreases, but that the direction of change is not predictable.

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#Question id: 10696

#Section 1: Ecology

In a new area two species A and B was discovered and taking energy from another species X and Y respectively. Following some is life history trait of species.

I- A species is often larger than X

II- Each A species taking energy from many X

III- One Y usually supports populations of B species

IV- Fatality of Y is Mild to severe

Which of the following is correct observation of above species?

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#Question id: 10575

#Section 1: Ecology

If the per capita birth rate (b) and per capita death rate (d) in one year is 0.80 and 0.20 respectively. if the initial population size is 600, what will be net change (dN) in population size in one year

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#Question id: 10854

#Section 1: Ecology

Which of the following is an example of a hemiparasite?

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#Question id: 9219

#Section 2: Evolution

If the sex ratio in a population is significantly different from 50:50, then which of the following statements will always be accurate?

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#Question id: 16855

#General Aptitude

He ……… (write) to me every month.