Plant parasites that lack chlorophyll and depend on their host for sustenance are referred to as

TLS Online TPP Program

#Question id: 12346

#Section 1: Ecology

The schematic below shows the relationship between survivorship with age (relative to maximum lifespan) in Species 1 (dashed line) and Species 2 (solid line). Which of the following inferences is compatible with this figure?

TLS Online TPP Program

#Question id: 12344

#Section 1: Ecology

The concept of punctuated equilibrium refers to

TLS Online TPP Program

#Question id: 12343

#Section 1: Ecology

Hybrids between some related species of plants are sterile because the parent plants had different chromosome numbers. Occasionally the chromosome number of such a hybrid  plant doubles spontaneously. Which of the following best describes the descendants of those plants with the double chromosome number?

TLS Online TPP Program

#Question id: 12342

#Section 1: Ecology

Which of the following is a biological attribute that would most likely allow a species to become cosmopolitan in distribution?

TLS Online TPP Program

#Question id: 12340

#Section 1: Ecology

Keystone species are thought to have profound effects on the structure and composition of ecological communities because they

TLS Online TPP Program

#Question id: 12339

#Section 1: Ecology

If a species is a keystone predator, then its removal from a community should