2. Factors that may affect variables are called

a. experiments.

b. hypotheses.

C. theories.

d. variables.

During osmosis, the semi-permeable membrane is one that: A. does not allow any particles to pass through. B. allows only very large particles through. C. decides what particles to let through based on cell signals. D.

An anthropologist finds a 29-cm humerus in a remote site at a mountain resort. There was a missing person's report for a woman (approx. 5'5'' tall) placed just about a week ago. Could this bone possibly belong to her? Why or why not?

A human female has a special pair of chromosomes that are represented by the letters A) XX. B) XY. C) YY. D) XZ.

When plants of a particular species are growing too close to each other, crowding may eventually lead to mortality, known as self-thinning. this type of mortality is density-dependent. oscillating. exponential. density-independent. random?

A nuclear particle that has the same mass as a proton but with neutral charge is called

What is spinabifda?

Question 4 Which of these is a case of selective breeding? To increase the production of milk in a herd of milk cows, the highest producing cows were chosen as the mothers.

How is the information within our DNA structured? A. as an arrangement of four chemical elements as an arrangement of four chemical elements B. as an arrangement of four chemical bonds as an arrangement of four chemical bonds C.

What is the diffrence of pulmanary artery and pulmanary veins?

Which character wears pajamas to the King's court? A. the Pirate Don Durk of Dowdee B. Jimmy Jet C. the speaker of "Thoughts on Talkers" D. Jonathan Bing