How do organisms form carbon films? Organisms turn into rock.
Residue is left on rocks when organisms decay.
Hollow forms are left in sediment by decaying organisms.
Organisms leave evidence of their activities, such as footprints.

Simplest answer?

Epinephrine is a hormone released from the adrenal gland of the body, most often in a stressful situation. it is known as the "fight-or-flight" hormone. one way that it causes a response in the body is to activate receptors on muscle cells. where are these cellular receptors located? a. on the cell membrane b. in the nucleus c. on the cell wall d. around the mitochondria

Which of the following factors would not contribute to allopatric speciation? a) a population becomes geographically isolated from the parent population.b) the separated population is small, and genetic drift occurs.c) the isolated population is exposed to different selection pressures than the ancestral population.d) different mutations begin to distinguish the gene pools of the separated populations.e) gene flow between the two populations is extensive.

Which of these is one of the nitrogenous bases in dna? a. proline b. leucine c. glycine d. thymine