Cube A has a surface area to volume ratio of 0.5:1. Cube B has a side length of 20 mm.

1. Calculate the surface area and volume of Cube B. (2 marks)

Which sentence correctly describes the relationship between DNA, genes, and chromosomes? A gene is a segment on the DNA. DNA is wrapped in proteins to form a chromosome. A chromosome is a segment on the DNA. DNA is wrapped in proteins to form a gene.

The lower the percent of energy required for a machine to perform work, the more energy efficient it is. true or false

Choose all the true statements about protein digestion and hydrolysis. A. The chemical digestion of proteins begins in the mouth with the process of mastication. B. In the small intestine, carboxypeptidase attacks peptide bonds. C.

2. Is it true that large molecules containing carbon atoms are called micromolecules.

Which is the structural building block of all living things

consider the structure and function of fats to predict which animal would have more fat: one that live close to the poles or one that lives close to the equator?

What does the electrochemical communication do in the body?

The insertion of the human insulin gene into the bacterium Escherichia coli allowed it to produce human insulin. Which type of organism is E. coli?

When do introduced species become invasive?

If arthropods' appendages were not jointed, how would that affect them?