the tundra is a harsh arctic environment. plants and animals need to be tough to survive there. and or but…
the tundra is a harsh arctic environment. plants and animals need to be tough to survive there. and or but so ← joining words combine the sentences into one sentence. use one of the joining words.
Answer
Brief Explanations:
The first sentence states a fact about the tundra being a harsh Arctic environment. The second sentence explains the consequence - plants and animals need to be tough to survive there. The joining word "so" is used to show a cause - effect relationship.
Answer:
The tundra is a harsh Arctic environment, so plants and animals need to be tough to survive there.