A black guinea pig with smooth fur was mated with an albino guinea pig that had rough fur. All their offspring were black and had rough fur. What are the genotypes of the parents?

Because of the unique position of the Earth in the solar system, life has developed due to the presence of - A. salt B. liquid water C. helium D. volcanoes

Which of the following is a concept from Darwin's theory of evolution by natural selection? a. descent with modification b. struggle for existence c. differential reproduction b and c only a and b only b only a, b, and c

When are lobster grows a glow to replace one that was lost the process is called

What do plants produce that supports the higher trophic levels of the community?

Some sweet-pea plants have purple flowers and other plants have white flowers. A homozygous variety of pea that has purple flowers is crossed with a homozygous variety that has white flowers. All the F1 have purple flowers.

At the end of meiosis 2, How does the DNA in each of the four new cells compare to the DNA from the original cell?

How fast molecules are moving?

Explain the four main characteristics of hazardous waste.

The physical interaction between the respiratory and the cardiovascular system takes place at which respiratory structure in a human? a, brochioles b. alveoli c. bronchi d, respiratory vessels e, gill filaments

How do our bodies get glucose and other organic molecules fir cellular respiration