According to the article about "green invaders," which of these problems is happening because of invasive plant species in america?

a.

temperatures are rising because of these species.

b.

food supplies are growing bigger each year.

c.

america’s oceans are growing colder.

d.

native plant species are being crowded out.

In the following diagram, four different index fossils are labeled: which of the labeled fossils comes from the oldest organism? a b c d

Which phrase describes the time it takes for a planet to make a complete rotation

Which ecosystem best fits the characteristics listed below? which ecosystem best fits the characteristics listed below? ii. seasonal migrations of millions of wildebeests, zebras, and elephants iii. large numbers of predators, such as lions iv. acacia trees and grasses a. the congo rainforest b. the african mangroves c. the serengeti grasslands d. the sahel