Which statements are correct? select all that apply.

both engines can do equal work.
engine #1 cannot do as much work.
engine #1 will accomplish work in about 1/2 the time of engine #2.
engine #2 will work about twice as fast as engine #1.

Parasitism could be considered a form of which of these types of relationships? -mutualism -commensalism -predator-prey -mimicry

Which of the following describes how binary fission and mitosis are similar? a)they are both used for growth or repair b)they both break down membrane-bound nuclei c)both invoke the replication of a single stand of dna d)both replicate genetic material

Which is an example of a vestigial structure? a: paw of a lionb: wing of a birdc: appendix of a humand: tail of a cat(i think it's a but i'm not sure)