What part of the hemoglobin molecule actually binds the oxygen molecule? what part binds carbon dioxide?

DNA is not visible to the naked eye, yet we were able to see it in lab today. A person cannot see a single cotton thread 100 feet away, but if you wound thousands of threads together into a rope, it would be visible much further away.

Is capillaries bigger or smaller than veins?

Using a punnet square, cross a heterozygous grey mouse with a white mouse. (Grey is the dominant allele and white is recessive.) A) what percent of the offspring have grey fur? B) What percent of offspring have white fur?

What kingdom does the arctic fox belong to

Why does the Antarctic experience different temperatures than the Arctic?

Describe the process of desertification

During transcription in eukaryotes, a type of RNA polymerase called RNA polymerase II moves along the template strand of the DNA in the 3'→5' direction.

A plant species live in an area with limited sunlight

Which statement is true of the nucleus of a cell

Until about 200 million years ago, Earth's continents were joined as a single land mass called A. Asia Minor. B. Pangaea. C. Glossopteris. D. Cynognathus.