Due will mark as

4. which of the following sentences is a good hypothesis?
a. how does the human heart pump?
b. goat milk tastes better than cow milk.
c. geraniums are able to reproduce asexually.
d. frogs on land are better off than frogs in the water.

5. how many manipulated variables does a controlled experiment have?
a. none
b. only 1
c. between 1 and 5
d. as many as needed

9. which of the following models would be best for weather forecasting?
a. physical model
b. chemical model
c. conceptual model
d. mathematical model

One of the newest applications of cell technology is called cybrid embryos. this process involves replacing the nuclear material of an animal cell with human nuclear material. how might this process affect public policies about research by using stem cells? the same policies and concerns about the use of human embryonic stem cells would most likely apply. the embryos would most likely be treated like traditional animal embryos and regulated accordingly. the process of forming cybrid embryos would most likely be banned by government regulators. the embryos would be treated as regular cells because they are not fully human in origin.