What is the most important mechanism through which combined oral contraceptives prevent pregnancy?

The system where nutriunts and oxygen are transported to cells in the blank system

What organelle seperates the cell contents from the enviroment

How are fossil fuels related to climate change? A. Fossil fuels release carbon dioxide, a greenhouse gas, as they burn. O B. Fossil fuels are greenhouse gases. O C. Fossil fuels release a great deal of heat as they burn. O D.

You discover a new species and are given the task of describing and classifying it. Upon closer examination, you find that it has a single duct for reproductive, excretory, and defecatory material as well as a lack of true nipples.

According to the conveyor belt model of ocean circulation, what usually happens when water reaches the poles? The density of the water decreases. The temperature of the water increases. The salinity of the water increases.

If the DNA nucleotides read 3'-ATG-CGT-GAC-5', the amino acid sequence of the resulting polypeptide (protein) would be what?

The movement of individuals into an area is called

The type of antimicrobial drug that would be least toxic to humans is a drug thatA) Inhibits protein synthesisB) Disrupts the cytoplasmic membraneC) Inhibits nucleic acid synthesisD) Inhibits cell wall synthesis

populations around the globe. If you were a scientist studying this fungus and wanted to know if it could infect a new frog species, how would you conduct your experiment?

Pregnancy comes with a unique set of diet and lifestyle guidelines. Some substances are particularly beneficial for the mother or baby, others are harmful, and some should be used with caution. Drag the appropriate items to their respective bins.