The diagram on the right is an illustration of a cell that lines the small intestine. This is where nutrients are absorbed into the bloodstream. The thin protrusions on the top of the cell are called villi. Thes villi face inward toward the inside of the small intestine. Explain how these villi aid the cell in being more effective in nutrient uptake.

Nucleic acid certain protein cell membranes certain carbohydrates

How can a geological time scale best be reconstructed? a) comparing vestigial structures in living species b) comparing homologous structures in living species c) examining homologous structures in fossil remains d) examining the written records of scientists from past cultures

Dna. we have heard that we are a product of our dna. but where is it? how do we "get" our dna? it is passed to us, from our parents, but in what form? several vocabulary words associated with inheritance are used interchangeably and sometimes, incorrectly. let's see if you can clear this up for someone just learning about inheritance and cell structure.