The scale of a road map indicates that 4 cm is equal to 30 km. Calculate the distance in km between two cities if the road between them is 10 cm long.

The genotypes for the different blood groups can be summarised as follows. Which blood types are dominant?

By what other criteria can a rock be distinguished from living things?

A student has a sandwich for lunch. the bread contains starch molecules and various other molecules. after chewing and swallowing some of the sandwich, the starch moves along the digestive system and is digested.

Which can eliminate the possibility of sexual partners getting hiv through body fluids, providing that both partners began the relationship free from infection?

Which best describes biotechnology?

When traits inherited from both parents are expressed, the alleles are said to have A. homozygous recessive alleles. B. polygenic inheritance. C. incomplete dominance. D. mutations.

Which types of molecules are hydrophilic and therefore excluded from the hydrophobic portion of the phospholipid bilayer?

A loopful of bacteria containing 1000 bacterial cells is inoculated into a nutrient broth and incubated. The culture was in lag phase for 10 minutes and then went into exponential log phase growth for 5 hours.

How does the wind transport sediment particles

A toxin selectively kills astrocytes. How would their loss affect functions of the nervous system? a. loss of autonomic control of blood pressure and heart rate b. loss of the blood-brain barrier c. loss of all sensory function d.