What is the difference between a threatened species and an endangered species ? a. a threatened species and an endangered species are the same thing. b. a threatened species means that the population is likely to become endangered. an endangered species has population numbers so low that it is likely to become extinct. c. a threatened species is already extinct. an endangered species means that the population's numbers have increased greatly over the last 5 years. d. a threatened species means that the population is likely to become endangered. an endangered species is already extinct.

Option B, A threatened species means that the population is likely to become endangered. An endangered species has population numbers so low that it is likely to become extinct.

Explanation:

A threatened species is the one which if not taken care of will become endangered soon. for example - Pacific Walrus, Leatherback Turtle, Javan Rhinoceros, Magellanic Penguin, Mountain Gorilla etc.

While an endangered species is at a higher critical condition as compared to a threatened species. An endangered species if not taken care of will become extinct soon. For example - Sumatran Elephant, Vaquita, Tiger, Saola etc.

Hence, option B is correct

stress fractures occur largely in the feet and legs and are common in sports that require repetitive impact, primarily running/jumping sports such as gymnastics or track and field.

he forelimbs below belong to four species that descended in a direct line from the ancestral mammal shown above. of the four descendants shown, which species most likely appeared earliest in evolutionary history?