Respuesta :
Answer:
4-)The first flowering plants were introduced toward the end of the Mesozoic era.
Explanation:
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The geological time of the first land plants were introduced toward the end of the Mesozoic era.
What is Mesozoic era?
This era is referred to as the age of Conifers and it lasted from about 252 to 66 million years ago.
In this era, there was the presence of most ancestors of plants and animals which is why it being a period where first land plants were introduced is appropriate.
Read more about Mesozoic era here https://brainly.com/question/4824228