Plz help! The crow is an example of an organism that survives well in the presence of
humans. In many cities, large flocks of crows eat food remains thrown away
by humans.
Which of the following BEST describes crows?
A) high adaptability
B) low population size
C) low available habitat
D) high variation in their population

The northern white rhinoceros has only a few remaining individuals, all in captivity. Which of the following describes the largest threat to the survival of this species?

A.) low adaptability
B.) low population size
C.) high vatiation in the population
D.) high amount of available habitat

Which of the following is an example of a mass extinction?

A.) Humans killed millions of passenger pigeons for food and sport.
B.) All the dodo birds living on the island of Mauritius are now dead.
C.) Mastodons. a group of organisms similar to elephants, have no individuals alive today.
D.) All the dinosaurs, along with 50% of all species alive at the time died out when an asteroid struck Earth.