You must design a valid experiment to show that there are microorganisms in the air. what would be your dependent variable?
sterilized broth
growth of organisms in the broth
exposure to microorganisms in the air

Which is not a characteristic of bacteria? a. they are unicellular. b. they are prokaryotic. c. they are the smallest form of life on earth. d. they are multicellular.

Recommend a strategy for incorporating sustainable human activity into a tropical rain forest biome.

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.