B . A reptile slows down in colder temperature
Unicellular organisms don't have membrane bound organelles
Classical biotechnology dates back about 100, 000 years ago.
Answer:
Brassica species are dicot which means that they have two cotyledons instead of one like monocots. Cotyledons supply food for the plants in the seed. As the plant matures, it flowers. Mustard plants have small yellow flowers in clusters.
Biodiversity increases as the number of populations grow, because a greater population generally means a more diverse one.
However, this is not always true, so I'm not sure what answer they're looking for.