Select True or False (T/F) 1. In general males of a species select females on th
ID: 100492 • Letter: S
Question
Select True or False (T/F)
1. In general males of a species select females on the basis of their ability to produce offspring.
2. Over many generations, two species relying on the same resources in the same environment can diverge to occupy different niches. This is possible when one of the species undergoes character displacement.
3. Parasites take advantage of their hosts, but limit the impact so that their host will survive for long periods
4. Populations grow due to births and decrease due to deaths.
5. Survivorship curves can distinguish populations on the basis of changes in the probability
of dying in relation to age.
6. The instantaneous growth rate of a population is expressed "per capita"- or per
individual. When r = 0, per capita growth rate equals per capita death rate and
population size does not change.
7. When communities are disturbed, the first changes are termed primary succession, followed by secondary succession.
8. When discussing the proximate reasons for a behaviour, a researcher is commenting specifically about the local conditions that trigger a response.
9. A persistent organic pollutants (POP) accumulates in the food chain because consumers eat primary producers which possess the POP.
10. An ecosystem is composed of four components: environment, plants, animals, and single celled organisms.
Explanation / Answer
1. In general of a male species select females on the basis of their ability to produce offsprings. : true
2. Over many generations, two species relying on the basis of same source in the same environment can diverge to occupy different niches. This is possible when one of the species undergoes character displacement. : true.
3.False; because the parasite always takes benifits over the expanse of the host, because they reduce the biological fitness of the host.
4. Populations grow due to births and decrease due to deaths : true
5. False/ because the survivorship curve shows the proportion of individuals surviving to each age for a given species/group.
6. The instantaneous growth rate of a population is expressed "per capita"- or per individual. When r = 0, per capita growth rate equals per capita death rate and population size does not change: true.
7. When communities are disturbed, the first changes are termed priamary succession, followed by secondary succession : true.
8. When discussing the proximatte reasons for a behaviour , a researcher is commenting specifically about the local conditions that trigger a response. : true
9. False because , POP work this way through the food chain by accumlating in the body fat of the living organism & becoming more conc. as they move from one organism to the other. (Biomagnification)
10. False, Ecosystem consists of abiotic components ( Inorganic and organic compounds) and biotic components (plants, animals ; Decomposers).