When does the blastocyst form?

A. A few days after fertilization

B. At the end of the first trimester

C. In the second trimester

D. At the end of the third trimester

Roots show geotropism because they grow toward gravitational pull.

Electrical stimulation of the right motor cortex elicits limb movements on the left side of the body, and vice versa. Which term below best describes this organization of the motor cortex and the muscles of the body?

Under which of the following conditions is a on most likely no evolve abimodaldistribution? o selection favors muniple distinct trait vaues, and similar individuals tend to mate with each other O Traits are strongly corelated and a low carrying

What effect does medical advances have on population growth A. medical advances could lead to a decrease in both death and birth rates B. medical advances could lead to a decrease in both death and growth rates C.

32. Explain why it is hard to classify organisms in Kingdom Protista? What are the definin characteristics of the kingdom?

7. Choose the best explanation of the difference between evolution and natural selection. A. Natural selection is the idea that species change over time, and evolution is the idea that our world changes over time. B.

Physical characteristics of down syndrome

Very long molecules that conatin instructions that cells need to function ate called

What is science denial?

What is the function of the cell membrane? A) to give shape to the cell B) to increase the number of cells C) to control what enters and leaves the cell Eliminate D) to produce macromolecules within the cell