Which of the following plant groups is now extinct?

TLS Online TPP Program

#Question id: 9215

#Section 5: Applied Ecology & Evolution

Use the following figure to answer the question

Five new individuals were added to a small population of bighorn sheep in 1986, and ten more were added between 1990 and 1994. According to the figure, what occurred in this population after these additions?

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#Question id: 4701

#Section 2: Evolution

Charles Darwin discussed all of the following EXCEPT:

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#Question id: 10838

#Section 2: Evolution

Fighting over shared resources is called

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: 11410

#Section 5: Applied Ecology & Evolution

Biodiversity hot spots, those areas with the greatest number of endemic species. Which of the following criteria to qualify as a hot spot region?

A. It must contain at least 1,500 species of vascular plants as endemics

B. It must have lost at least 70% of its original habitat

C. It must contain at least 500 species of bird species

D- It must contain high numbers of species