What do plant cells have that animal cells do not?

Ecological Pyramids are used to explain energy flow in a food web. They all need trophic levels. What are the trophic levels?

Is the correlation between morbid obesity and cardiovascular disease strong?

Protons orbit the nucleus. True or False?

Are the gametes produced during meiosis genetically identical?

A star with no measurable parallax is very close to Earth.

Which of the following factors do you think can affect the size and structure of a population? the number of individuals who enter a population the number of individuals who exit a population limitation of resources natural events human activity

What is the role of neutrons?

At what stage of development does the brain essentially reach its adult size?

Aqueous space that surrounds the chlorophyll-containing membranes of the chloroplast?

5. What is the probability of a child having blood type A if the both the mother and father have blood type AB?