"there are essentially four basic ways a substance can get through the plasma membrane. what are they? if you get specific, you will end up listing six. that's fine too."

phagocytosis, pinocytosis, endocytosis, mediated transport (carrier proteins), channel proteins, passive transport (diffusion and facilitated diffusion), are all methods for things to enter the cell. so my four would be which of these?

Sydney drew a flow chart to illustrate the nitrogen cycle.which labels best complete the flow chart? x: producers undergo photosynthesis.y: nitrogen compounds are released into the air.x: nitrogen compounds are released into the air.y: producers undergo photosynthesis.x: free nitrogen is in the atmosphere.y: producers absorb nitrogen compounds through their roots.x: producers absorb nitrogen compounds through their roots.y: free nitrogen is in the atmosphere.

The reactions that occur in the ribosome, where amino acids are combined to form proteins are anabolic or catabolic?

Agene pool: a) is the collection of all the alleles found in a single species b) is the collection of all the alleles found in a single population c) is the collection of all the chromosomes found in a single population d) is the collection of genes in a species that allow the individuals to swim