A sperm cell has a tail 40 µm long and a student draws it 40 mm long. what is the magnification.

What is a base? a substance that can accept an OH - ion a substance that has a low pH value a substance that is alkaline a substance that can donate an H + ion

What is in the cloud of negatively charged particles that surrounds an atom? O A. Neutrons B. Protons C. Proteins O D. Electrons

What type of energyt increasesd as an objectt becomes warmer?

How is biochemical comparison different from other methods of determining evolutionary relationships?

Which of the following is an example of kinetic energy? A. chemical energy B. nuclear energy C. radiant energy D. gravitational energy

List some of the beneficial applications of transgenic bacteria, plants, and animals.

What does atmosphere does for us

What makes the eye look yellowish?

Photoelectrons with a maximum speed of 8.00 * 107 m/s are ejected from a surface in the presence of light with a frequency of 7.50 * 1014Hz. If the mass of an electron is 9.

Why is the Golgi apparatus in the cell?