Which action is prevented by the cell membrane?

In a newly discovered organism, the cells in its body have 16 chromosomes. If this organism reproduces sexually, the daughter cells created after a body cell undergoes meiosis would have [x] chromosomes.

Which level of organization would occur after the cellular level but before the organ level

True or False? Infrared radiation in sunlight is absorbed by ozone before it reaches Earth.

Pathogens can be transmitted through contact with surfaces like doorknobs and countertops. a. True b. False

A cell has a defect that results in the loss of its ability to selectively regulate the passage of certain molecules into and out of the cell. In which of the following cell parts is this defect mostly likely to be located?

Upon swallowing, food moves from the mouth directly into the

Are chromosomal mutations beneficial, harmful, or neutral?

which of the following fossil is best described as forming when minerals replace all of the organisms

Why does a block of metal sink in water but the same size block of wood float? The molecules in the metal are closer together than the molecules of the wood. The metal is more compact.

Do eukaryotic have membrane-bound organelles?