The thermoacidophile, Sulfolobus acidocaldarius lacks peptidoglycan. What is likely to be true of this species?

1. It is a bacterium.

2. It is an archaean.

3. The optimal pH of its enzymes will lie above pH 7.

4. The optimal pH of its enzymes will lie below pH 7.

5. It could inhabit certain hydrothermal springs.

6. It could inhabit alkaline hot springs.

TLS Online TPP Program

#Question id: 24515

#Unit 10. Ecological Principles

which of the following a definitive host of parasite toxoplasma gondii, where  it complete their sexual reproduction?

TLS Online TPP Program

#Question id: 24516

#Unit 10. Ecological Principles

which of the following parasitism is a form of feeding where one animal takes food that another has caught?

TLS Online TPP Program

#Question id: 24517

#Unit 10. Ecological Principles

A specific kind of parasitism proposes that  in which cuckoos or cowbirds repeatedly check their host’s nests and destroy all eggs if their owner is not present. If the parasite egg has been removed, they destroy the host’s nest and kill or injure the nestlings, this is an example of;

TLS Online TPP Program

#Question id: 24518

#Unit 10. Ecological Principles

Some nonnative parasites are introduced deliberately for the biological control of pests, which of the following are necessary attributes of a good agent of biological control?

a. low rate of increase relative to the host’s

b. Good dispersal ability

c. High searching capacity for hosts

d. Minimal time lag effects

e. Maximal time lag effect

f. General adaptability to the environment

TLS Online TPP Program

#Question id: 24519

#Unit 11. Evolution and Behavior

Natural selection idea is developed  independently by

TLS Online TPP Program

#Question id: 24520

#Unit 11. Evolution and Behavior

which of the following characteristics that are involved to enhances the survival and reproduction of organisms that bear it ?