1.what weakens coral exoskeletons? excess salt excess co2 excess sunlight excess fishes 2.a quarter of marine life lives in which type of ecosystem? fish zooxanthellae coral reef ocean 3.what do corals provide for zooxanthellae? food sunlight a source of oxygen a protective area

Suggest why placing wheels under a heavy box reduces the neccessary force required to push it along at a constant speed.

What are the three types of counseling established by marine corps policy?

Parthenogenesis is a type of reproduction that does not require a mate. it’s rarely seen in birds and higher vertebrates. parthenogenesis involves the formation of a zygote. but this zygote is formed without fertilization. in parthenogenesis, in the absence of a male gamete, the ovum develops directly in the zygote.