Question

review the details below.

• elephants graze on grasses and break down plants, making the vegetation edible for smaller herbivores.
• lions feed on large herbivores like zebras and giraffes.
• vultures eat meat left over by large predators.

choose the best topic sentence to introduce a paragraph containing these details.
the african savanna is home to scavengers, which survive off the remnants left by predators.
animals in the african savanna depend on other animals in their ecosystem to survive.
the warm climate of the african savanna makes food plentiful for all animals.

Explanation:

The details show different animals (elephants, lions, vultures) depending on others in the ecosystem. The first option only focuses on scavengers (vultures), which is too narrow. The third option mentions climate, which isn't in the details. The second option, "Animals in the African savanna depend on other animals in their ecosystem to survive," encompasses all the details as elephants depend on plants (which then help smaller herbivores), lions depend on large herbivores, and vultures depend on leftovers from predators.

Answer:

Animals in the African savanna depend on other animals in their ecosystem to survive.