Which of the following groups contain organisms that have tissues and organ systems?

a.

prokaryotes

b.

eukaryotes

c.

bacteria

d.

protists

Robert wants to know which fertilizer will work the best for his grass. what can he do to explore this inquiry?

Identify the missing parts of the carbon cycle

Amale bird-of-paradise uses a dance to attract mates in which it flaps its tail feathers on the ground and jumps around a potential female mate. a different male bird-of-paradise does a similar dance but it jumps around the female in the opposite direction. the female bird is only attracted to one style of dance, in one direction. this is an example of speciation.