On the average, each human has about six recessive alleles that would be lethal if expressed. Why do you think that human cultures have laws against marriage between close relatives?

For the given functions f and g, find: $g \circ g$, $f(x)=x^{2} ; \quad g(x)=x^{2}+4$

Which feature of water explains why water has high surface tension? A. water diffuses into cells. B. water’s resistance to temperature changes. C. water is a polar molecule. D. water expands when it freezes.

A wire 10 cm long is cut into two pieces, one of length x and the other of length 10 - x. Each piece is bent into the shape of a square. Find the value of x that minimizes the total area of the two squares.

When Mendel transferred pollen from one pea plant to another, he was ____ the plants. A. self-pollinating. B. cross-pollinating. C. self-fertilizing. D. cross-fertilizing.

How is the role of pancreatic hormones in glucose regulation important for homeostasis?

Determine which functions are polynomial functions. For those that are, state the degree. For those that are not, tell why not. $F(x)=\frac{x^{2}-5}{x^{3}}$

If $v = 2i - j$ and $w = xi + 3j$, find all numbers x for which $\|\mathbf{v}+\mathbf{w}\|=5$

An acid is any substance that forms ____ in water. A. hydroxide ions. B. oxygen ions. C. hydrogen ions. D. sodium ions.

Briefly review, analyze, and critique Darwin’s ideas about natural selection.

True/False: A function that creates a new instance of a class is called an accessor.

Which of the following is located beneath the hypothalamus? A. pituitary gland. B. adrenal glands. C. thyroid gland. D. parathyroid glands.

Find the value of the trigonometric function. If possible, give the exact value; otherwise, use a calculator to find an approximate value rounded to five decimal places. $\cos \frac{\pi}{5}$

A population of catfish survives in a pond, but does not reproduce there. Discuss what might be happening here in terms of tolerance.