What happens when the diaphragm contracts? a. the volume of the thoracic cavity increases. b. the diaphragm rises. c. the volume of the thoracic cavity decreases. d. the rib cage moves down.

A woman with severe periodontal disease has a ___ times greater risk for a preterm infant with low birth weight compared with women with little or no periodontal disease.

What two components make up enzymes

How long does a mother cats colostrum provide antibodies?

Most children have developed a firm gender identity by

Electrolytes that release hydrogen ions in water are called

Styrofoam is very brittle. what will you expect to find when you examine the hardness of styrene

A 14-month-old toddler is able to recognize the shapes of objects and fit smaller boxes into larger boxes. which type of cognitive development does this action indicate?

In humans, having wet earwax is a dominant trait. Having dry earwax is recessive. A Man has recessive allele and one dominant allele. What is his phenotype?

Chromosomes condense at the start of mitosis so that they can be more easily between the two nuclei

A brown dog is crossed with two different black dogs. The first cross produced only black dogs and the second cross produces equal numbers of black and brown dogs. What is the genotype of the brown dog? the first black dog? the second black dog?