If migration is a type of movement that causes a population to fluctuate, then what can happen to a population when animals begin to migrate? Answer choices: - It expands - harm them - it can change species - Move to another area - it can eat more - it can go extinct - it can fluctuate - Plant growth is reduced
it can fluctuate

If many corals secrete an exoskeleton that gives homes to fish, then what do exoskeletons secreted by corals do? Answer choices: - Give homes to humans - Give homes to penguins - competing for resources - Give homes to fish - reproduce - Give homes to birds - preventing heat transfer - protect them
Give homes to fish

Q: If ants communicate via chemicals excreted by their bodies, then ants communicate via? Answer choices: - mechanical waves - telepathy - radio waves - radiative transfer - electrically - excreted chemicals - sensory neurons - during the day
A: excreted chemicals

Question: If adelta can lead to the gradual burial of more sediments, then what can lead to the gradual burial of more sediments? Answer choices: - erosion - loose soil - an ocean - a wave - a delta - wind - a lake - flooding
Answer: a delta

*Question*
If cranes roost on the formation where water moves sediment downstream, then what happens on the formation where water moves sediment downstream? Answer choices: - mechanical - watershred - erosion - cranes roost - near the shoreline - streams. - it can be seen - swamp vegetation
**Answer**
cranes roost

Q: If behaviors can be learned through hockey, then what can behaviors be learned through? Answer choices: - recovery - hockey - walking - density - dogs - gravity - exercise - volume
A: hockey