in a herd of 80 dairy cows 16 have black and whites coats and 64 have solid black coats. Whaat is the frequency of cows with black and white coats

What organic compound used for stored chemical energy

Which of the following options best describes a planet located outside of our solar system that orbits a star other than our Sun? Jovian planet terrestrial planet extra-terrestrial planet extra-solar planet

Which level of classification contains all the others

In 1952 Hershey and chase conducted a series of experiments indicating that DNA was the physical carrier of heredity True or False?

Read the scenario below. A cell is in an unknown solution. The cell contains 60% water, 10% salt, and 30% other materials. The solution contains 75% water, 5% salt, and 20% other materials.

How does artifical selection affect the environment?

What bodies of water make up a river system?

Which sentence describes a sex limited trait? A.) Stags have more prominent antlers than those. B) a pink colored flower is the offspring of a red and white flower. C) several alleles control gene type.

In a tree, a long growing season would be represented by a: narrow ring wide ring dark ring light ring

Which molecule is responsible for removing torsional stress during dna replication?