A copper coin is placed so it touches a brass coin. The temperature of the copper coin is 100 degrees celsius. The temperature of the brass coin is 50 degrees celsius. Predict how heat will flow in this situation.

Gene genealogies can vary for different loci. What does this imply for species trees? Group of answer choices A) Adaptive radiations do not occur. B) Species trees should be constructed using multiple loci (both nuclear and mtDNA).

Explain how mono-, di - and polysaccharides differ.

Earth's core acts as a permanent magnetic in producing Earth's magnetic field. true or false

How many reactions can one molecule of catalase perform?

What was the original atmosphere made of primarily? What is is made primarily of now?

What is the function of topoisomerase? a. relieving strain in the DNA ahead of the replication fork b. elongation of new DNA at a replication fork by addition of nucleotides to the existing chain c. the addition of methyl groups to bases of DNA d.

Can natural selection cause new variation?

The first step of biologists takes when deciding how to study life is to___.

If rabbits gave birth to two young every two years, like bears, what would happen?

Genes are located on what and each gene controls a specific what