Answer:
Each one is fromt the plant cell
Explanation:
Answer:
D) found in a limited time span
Explanation:
Index fossils are the remains of living organisms for which we have already established relative age. These are fossils that only existed during a limited period of geologic time and are easily identified, found in large volumes, and found in many different locations around Earth. Due to these factors, index fossils may be used as a guide for comparison in determining the relative age of an unknown object.
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Answer: The sympathetic division can be thought of in a general way as helping the body to mount a “fight or flight” response, with an overall increase in heart rate and blood pressure. Pressure increases because blood vessels constrict under sympathetic stimulation.
Explanation:
Atom
Molecule
macromolecule
Cell
Tissue
Organ
Organ System
Organism
Population
community
ecosystem
biosphere
