TLS Online TPP Program

#Question id: 12571


Although extinction is a natural process, current extinctions are of concern to environmentalists because

#Section 5: Applied Ecology & Evolution
  1. More animals than ever before are going extinct.
  2. Most current extinctions are caused by introduced species. 
  3. The rate of extinction is unusually high
  4. Current extinction is primarily affecting plant diversity.
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TLS Online TPP Program

#Question id: 12126

#Section 4: Behavioural Ecology

Which of the following describes a successional event in which one organism makes the environment more suitable for another organism?

TLS Online TPP Program

#Question id: 3496

#Section 4: Behavioural Ecology

Which of following favor adaptations for polygynous mating in species?

a. Male competition

b. Female competition

c. Male choice

d. Female choice

TLS Online TPP Program

#Question id: 3502

#Section 4: Behavioural Ecology

Sexual dimorphism (SD) is a pattern that is seen throughout the animal kingdom and differences between the sexes in coloration are common in many organisms. Following some statement are given

A) There are many mechanisms that drive the evolution of SD, the most accepted mechanism being sexual selection

B) Mate choice is an important proximate mechanism of sexual selection, often the sex with the higher reproductive investment is the ‘choosy’ sex

C) Larger species are more sexually dimorphic than smaller species

D) Terrestrial species tend to be more sexually dimorphic than arboreal species

Which of the following above statement is correct?

Which one of the following is correct?

TLS Online TPP Program

#Question id: 11403

#Section 5: Applied Ecology & Evolution

Several categories of risk of species extinction have been defined. A species can be determined as critical endangered if there is considered to be

TLS Online TPP Program

#Question id: 11404

#Section 5: Applied Ecology & Evolution

You were discovered 4 species in forest, their characteristic as following,

A specie eat only bamboo;

B species eat fruits of many tree species;

C species Short life span;

D species low population variability .

Which of the following species characteristics have been proposed as more prone to extinct?

TLS Online TPP Program

#Question id: 11405

#Section 5: Applied Ecology & Evolution

Vulnerability to extinction can be linked to species following characteristics. Which of the following statement are correct?

A. Endemism species are more prone to extinction than fragmented

B. Species that are capable of migrating between fragments of habitat, such as between mainland areas and islands, may be more resistant to extinction

C. Population variability species are less prone to extinct

D. Species with naturally long life spans may be more likely to become extinct