PLEASE HELP

Match each type of fossil to its description

petrified fossil

living thing turned to rock

cast

detail left after an organism decays

trace fossil

solid copy

mold

hollow form

carbon film

Which of the following describes a negative feedback loop? when the heart rate is too high, the body sends hormones that continually increase the heart rate higher. when a pregnant woman is in labor, the body sends hormones that increase the intensity of contractions, which then increases the secretion of the same hormones. when blood sugar is too low, the body sends hormones that raise blood sugar until it reaches a typical level and hormone secretion slows. when a person is jogging, the body sends hormones that continually decrease the rate of oxygen supply to the legs.

The activity of the modern sample is 1.10 bq . how long does that measurement take?

We all have different forms of genes from our parent(s).what are these different forms called? a.alleles b.characters c.dna d.resources