they are enzymes. i hope this helps
Answer:
The mantle is solid.
Explanation:
The mantle is the mostly-solid bulk of Earth's interior. The mantle lies between Earth's dense, super-heated core and its thin outer layer, the crust. The mantle is about 2,900 kilometers thick, and makes up 84% of Earth's total volume.
23 pairs or 46 individual chromosomes
Since they have no predators the zebra mussel population will grow rapidly. Whatever the zebra mussels consume will have a major decrease in population since there are so many zebra mussels.
Answer:
Biosphere, Biome, Ecosystem, Biological Community, Population, Organism, Organ, and Cell.
Explanation: Hope this Helped! :)