Select all that apply. What characteristics do mutations have? 1. always harmful 2. occasionally beneficial 3. omission of information 4. addition of information 5. mistakes in copying

A climax community always what?

following clear-cutting of a broadleaf forest several hundred years ago, the land was colonized by herbaceous species that were replaced largely over time by shrubs, then by forest trees.

You apply 100.0 n of force to a machine. The machine applies 20.0 n of force to the load. What is the mechanical advantage of the machine? a) 200.0 b) 80.0 c) 5.00 d) 0.200

Umbilical cord blood is a rich source of stem cells. Which possible advance in biology would most likely be a result of performing research with an individual's banked cord blood?

Which would be the order of the bases on the opposite strand of dna

How do dominant and recessive traits impact genotype and phenotype?

The fat in adipose cells is broken into fatty acids. Which pathway is involved in this process?

Why does the appearance of the moon change each month?

Blond hair is represented by the filled circles, and brown hair is represented by the empty circles. from this pedigree, what can be said about blond hair color?

The offspring of a particular cross are 100% heterozygous for tallness. What were the most likely genotype a of the parents?