Which of the following can limit the growth of a population of organisms

When water reaches an arctic region, it sinks because it becomes A. less dense as it gets colder and saltier. B. more dense as it gets colder and saltier. C. less dense as it gets colder and less salty. D. more dense as it gets colder and less salty.

Give two examples of how abiotic factors can affect an ecosystem. Really confused on this ...

Why must a plant cell also use cellular respiration?

Which source is energy causes most of the water evaporation on earth's surface?

When atp is used is a phosphate group added or removed

Where does nitrogen from the atmosphere go before it enters a plant

What muscles is important in controlling breathing?

The expression of a gene is said to be 'turned on' when certain signals interact with the promoter of a gene and RNA is produced. The strand of RNA that corresponds to a gene is complementary to the sequence of DNA.

How are the functions of a carbohydrate and a lipid similar? Both lower the activation energy of reactions. Both dissolve nutrients in the digestive system. Both are a source of energy. Both are replicated during meiosis.

The diagram below represents the time a cell spends in the two main phases of the cell cycle in which phase does a cell spend less time