Most sponges are meaning both sexes occur in the same individual but do not usually self-fertilize because individual sponges produce eggs and sperm at different times.

Identify the various levels of atmosphere. troposphere mesosphere exosphere stratosphere thermosphere

Why reason best illustrates why hershey and chase chose to use viruses in their experiment?

The embryos of a bird, a reptile, and a mammal are similar in appearance. how does comparing the physical appearance of embryos of different species support the theory of evolution? a. it shows that these organisms share a common ancestor. b. it provides evidence that these organisms eat the same foods.c. it shows that these organisms share the same habitat.d. it provides evidence that these organisms suffered a genetic mutation.