Active transport differs from Passive transport in that: O A. Only Active transport uses membrane proteins.
B. Passive transport requires energy.
C. Active transport requires energy.
D. Only Passive transport uses membrane proteins.

What major structure can be used to tell apart the embryos of acoelomates pseudocoelomates and coelomates?

Sampling lake water for microscopic organisms is not as easy as it sounds when you want to both count and identify species. in a given water sample, your bacteria of choice can be rare or difficult to culture, particularly given the mixture of bacteria in a biofilm. which of the following culture media would be best for growing fecal coliforms when they are relatively less abundant than other bacteria in the lake? anaerobic culture medium enrichment culture medium complex culture medium basic culture medium

Apaleontologist finds a plant fossil that shows that the plant had seeds. what can the paleontologist conclude?