The yolk sac functions to form blood cells in early development. provide nutrients to the fetus when the umbilical cord is disconnected. store metabolic wastes until the fetus is born. give rise to the primary germ layers.

Select the correct answer What improves an organism's ability to survive and reproduce in a given environment? A. transformation B. evolution C. adaptation D. behavior

Assume you need to test a function named inOrder. The function inOrder receives three int arguments and returns true if and only if the arguments are in non-decreasing order: that is, the second argument is not less than the first and the third is

Which of the following circulatory system diseases is also referred to as hypertension? A. High blood pressure B. Stroke C. Atherosclerosis D. Heart attack

Why is the statement "force equals mass times acceleration" a law rather than a theory

What is a genotype? the ratio of dominant to recessive genes in an individual an organism's combination of genes for a trait an organism's appearance as a result of its genes the collection of dominant genes in an organism

What is the function of horizontal cells in the eye? launchpad?

Many people find that they become ill with a cold after traveling by airplane. The air circulation systems of commercial aircraft use HEPA filters that should remove any infectious agents that pass through them.

The kingdom, Protista, includes A) most viral agents. B) prokaryotic organisms. C) yeasts and bread molds. Eliminate D) most single-celled eukaryotes.

What are special properties that are used to identify minerals? Check all that apply. - fluorescent - magnetism - hardness - reactivity - use

How does a single undifferentiated cell lead to a complex multicellular organism?