Arthropods like grasshoppers molt because

a. their exoskeleton is damaged.

b. their exoskeleton cracks and lets in water.

c. their hard exoskeleton cannot grow larger.

d. their body grows faster than their exoskeleton.

Cells that secrete the organic osteoid of bony matrix are called:

The principle of natural selection maintains that

Which type of cause and effect organizer would be best for Alisha to understand how crude oil becomes gasoline? a. timeline c. both of these b. flow chart d. none of these

Several types of are used to produce yogurt.

Cows, pigs, and sheep have identical amino acid sequences for cytochrome c. What does this say about their evolutionary relatedness? What other properties or traits do these species have in common?

Kimberly is a 34 year-old woman who is 30 weeks pregnant. she received a td booster dose 1 year ago when she cut her hand while working in the kitchen. she has no documentation of receiving a tdap vaccine.

How does the structure of smooth and cardiac muscle differ from the structure of skeletal muscle?

How much of the weight of a cell is water

What does the correlation coefficient indicate about the similarities between the gene expression profile for mike smith and the gene expression profile for patient 4?

Compare and contrast to process of translation of mRNA into a protein on a ribosome between prokariots and eukariots. Focus on the phases of initiation, elongation, and termination, and the different factors that were involved in each of these steps.