Why must all chemical reactions be balanced?

The tree of life is a metaphor for what idea? A: we need water and sunlight to survive B: we have multiple species C: we are old D: we came from a common ancestor

Creep can occur on even very gentle slopes. True or false?

Which of the following mutations would be most likely to have a harmful effect on an organism? a. a deletion of three nucleotides near the middle of a gene b. a single nucleotide deletion in the middle of an intron c.

Select the characteristic echibited by viruses

Why is the nucleus considered the command center of the cell? A) it contains the genetic information for every function of the cell. B) it is the cells power house and processes energy for the cell.

Why do you think an ice cube feels cold when you hold it?

A dermatome represents the motor innervation of muscles in that area. a dermatome represents the motor innervation of muscles in that area. a. True b. False

The largest stars known could contain over Suns. OA) 1,000 OB) 100,000 OC) 1,000,000 D) 1,000,000,000

A founding population of lizards arrives on a island. Which type of isolation would likely result in this population becoming a new species

A living thing that does not makes its own food