They explored ecosystems and habitats.

Meaning: This means that people examined or investigated communities of living things and their environment, and the places where organisms live.

Choice of Words: They refers to the people who studied life. Explored means to examine or investigate something. Ecosystems are communities of living things and their environment. And is a conjunction used to connect words, phrases, or clauses. Habitats are places where organisms live.

Alternative Expressions

Related Expressions

• Turtles are important to ocean ecosystems.
• Currents influence ocean ecosystems.
• Animals live in different habitats.
• She learns about penguins' habitats.
• Fish live in different habitats.
• Animals live in habitats.
• Preserve habitats.
• They explored the forest and found many interesting things.
• They left the nest and explored the world.
• They explored every nook and cranny of the house.