wolf and bears are at da top
then they prey other animals like fox, mice, otter, and fish
have a goed day
Answer: i think its 80 million years ago
Explanation:
An autotroph produces its own food while a hetertroph has to find it/hunt for it/gather it
Examples~
Autotroph-Sunflower
Heterotroph-Wolf
Correct answer: C) Concentration gradient
The process of movement of a particle in a solution from the region of higher concentration to the region of lower concentration across a membrane is called as concentration gradient.
For example: If we drop a few drop of dye in a glass of water, it will diffuse along a concentration gradient, i.e, the region where dye is found in highest concentration to the region where it is in lower concentration.
It will occur until the concentration of dye become uniform in all the direction in the glass of water.
Answer:
It should be D.
Explanation:
The invasive species will negatively effect the ecosystem and the natural predator in the area. Like the Blue Lobster problem in Maine.