Which structures contain DNA within the cell nucleus?

A.

organelles

B.

chromosomes

C.

ribosomes

D.

proteins

Identify two different sex linked traits in humans.

Does a relationship exist between body mass and metabolic rate?

Flower color in primrose plants is controlled by an individual gene. the sudden appearance of one white flowering primrose in a plant breeder's field of red primrose plants is most likely due to

I'm a machine, work output is less than work input because some energy is converted into thermal energy. True or false

Which of these is not a function of cell division? a. repair b. respiration c. reproduction d. growth

Earth's magnetic field: a. changes over time b. remains unchanged c. does not affect solar winds d. is not affected by solar winds

Which statement is true about scientific theories and laws? A. A theory can never become a law B. If enough evidence is found for theory, it will become a law C. Theories have more proof than laws D.

Blood typing: who can donors donate to and who can receivers receive from? Know the Rh factor and how it relates to Rh antibodies.

Why is it important yo wash hands after an experiment

What is the driest biome on earth