A eukaryotic cell has far more organelles and most prominently, has a nucleus. A prokaryotic cell stores it's DNA in it's cytoplasm.
A population decrease in primary producers would affect the ecosystem negatively because everyone who ate the primary consumers would have a lack of food.
The correct answer is letter B. the closer the star, the larger the Parallax angle. This is an illusion that is made through visual perspectives of observers of stars. A parallax can also be used to find the distance to the stars that are relatively close.
A symbiotic relationship in which one organism can take
advantage and the other is not harmed The treehopper-ant mutualism becomes
parasitic in years when spiders are rare, because the treehoppers no longer
derive a large benefit but pay a fitness cost.
They can sting you if they feel harmed or they can give you honey
