Which of the following is a substrate that lowers the activation energy?

A) ion

B) reactant

C) catalyst

D) substrate

Which term does not describe a heterotroph

A 6 year old male suffered a fracture after falling off the monkey bars at school. He fell on an outstretched hand and suffered a transcondylar fracture of the left humerus. After prep and drape, a manipulation was done to achieve anatomic reduction.

In general, the benefits of smoking greatly outweigh the health risks.

Which organelle can be compared to a security guard who decides whom may enter a building and whom may not? A: cell membrane B: cytoplasm C: endoplasmic reticulum D: mitochondrion

Phylogeny is the study of

In the alternation of generations life cycle the diploid zygote grows into a sporophyte plant through a process called

Which statement is true for both plant and animals cells? They have centrioles and cellulose. Animal cells are generally smaller than plant cells. They have mitochondria and chloroplasts. They have cell nuclei and vacuoles.

What's one main difference between prokaryotic and eukaryotic cells

Why dose secondary succession occur faster than primary succession?

Freediving is an activity in which a person dives, sometimes to great depth, without the use of scuba gear. the diver must hold his or her breath for the duration of the dive.