Which part of the cells acts as a barrier to control what enters and leaves the cell?

Which type of precipitation would likely be falling from cumulonimbus clouds with a ground air temperature of 14°C

Which trait is determined by both genetics and the environment? a. eye color b. athletic ability c. blood type d. a scar

11 Infer A student notices that when it rains. most of the water that falls on her yard runs off instead of soaking in. Is it more likely that the soil in her yard contains mostly clay or mostly sand? Explain.

How did some stickleback populations come to live exclusively in fresh water?

Is monchondria a plant cell or animal cell

Suppose a large number of dead fish are found floating in a lake. how would you determine whether they died from cultural eutrophication or from exposure to toxic chemicals?

Which best explains how gravity contributes to the formation of layers in protoplanets? Gravity attracts materials and causes compaction, which produces heat and leads to the melting, sinking, and rising of materials.

1. As an object moves towards another object the sound waves bunch up. True Or False 2. As an object moves toward another object the sound waves have lower frequency. True or False. 3.

Do we classify viruses as living

What caused the evolution of antibiotic-resistant bacteria?