Consider the overall shape of these cells.

Which geometric solid is the best model for these cells?

A. A sphere

B. A flat disk

C. A cube

D. A square pyramid

What function is performed by the smooth endoplasmic reticulum inside its membrane

What species is best adapted to living In cold temperatures a species a b species b c species c d species d

How do patterns in dna support the claim that living things share a common ancestor

Explain how the equator relates to the temperature and amount of oxygen in water

What is the difference between atp and adp? atp is a lower energy form of adp atp is a higher energy form of adp atp has one more phosphate group than adp both b and c are correct

Explain why a mark on a blade of grass will move away from the ground as the grass blade grows

What do enzymes react with? A. the products of chemical reactions B. the active site of the plasma membrane C. proteins in the cytoplasm D. a specific substrate

Isaac watched a movie where a tsunami washed across the coastline. He related the incident to the geology of the ocean he learned at the school. Which geological phenomenon did Isaac relate to? A. plate tectonics B. upwelling C.

How do mutations affect an organism? A. they may cause the development of a disease-causing allele B. they may cause the development of a more beneficial allele C. they, in some cases, may have no noticeable affect D. all of the above

Scientists make two types of observations that can be either