Answer:
A. people from different cultures and living at different times can contribute to scientific knowledge.
Explanation:
Answer: The answer is B- Cool Air Is Sinking
Explanation:
Answer:
Pteridophytes are vascular plants but they do not produce flowers and seeds which mean their source of reproduction is unknown or hidden.
On the contrary, Spermatophytes as the name indicates, are seed bearing plants. They produced seeds and flowers. Examples are flowering plants, cactus, leather flower, buttercup and may more.
Explanation: