What did people rely on rivers for during the eighteenth century? Select the three correct answers.

producing electricity

sending telegrams

transporting people and goods

collecting drinking water

powering mills

How does a basic stem cell know what type of cell to become? A. Stem cells are activated by hormones to start producing specific proteins of the cell they will become. B. During puberty, a growth spurt results from many rounds of cell division. C.

The four structures unique to plant cell

almodulin is found in smooth muscle cells and performs a similar function to troponin in striated muscle fibers. However, calmodulin not only gets activated by Ca2 but also slows the release of Ca2 from the sarcoplasmic reticulum.

Adaptation of spermatozoon

How do you describe mendel's hypotheses regarding gametes?

Describe what each type of survivorship show (type1, type2, and type3)

According to the food web what would happen to the producers if a virus broke out among the primary consumers and wiped out most of the species? A. the producers would increase B. the producers would decline C. the producers would have no change D.

Explain why a venus flytrap is considered living using the following characteristics of life: using energy, growth & development, and evolution (adaptation)

Which of the following peripheral nervous system (PNS) neuroglia form the myelin sheaths around larger nerve fibers in the PNS?

Which of the followings is true about gluconeogenesis? A. One ATP and one GTP is needed to convert pyruvate to PEP B. Oxaloacetate is involved in generating PEP C. Gluconeogenesis primarily occurs in the mitochondria D. In occurs in the brain