Many cacti, such as saguaros and barrel cacti, have large stems and no leaves. what function of leaves is taken on by the stems of such cacti?

At what stage of scientific thinking are scientists most likely to consider the data and conclusions of other scientists to propose new experiments

In the United States there are many types of rabbits. four different species have four different ranges or habitats. in which range would developing white fur in winter most likely not be an advantage?

A student claims that cellular respiration is essential to cells so that they have a means for getting rid of excess carbon dioxide. What is wrong with his statement?

Which term best describes the temperature and weather conditions of an organism's environment? A. Biotic factors B. Abiotic factors C. Natural resources D. Natural habitat

Do enzymes change delta-g?

Which of the following species is most likely to be an invasive species if introduced into a favorable new habitat? a. Oyster b. Fish c. Rabbit d. Bobcat

Which would BEST allow a species to survive environment changes

You discover a very slow-growing plant that has extremely tiny leaves that are covered in a thick layer of wax and succulent stems. in which biome did you most likely discover this plant?

Any change in the normal nucleotide sequence that codes for an amino acid is called a

What are the 3 functions of the membrane proteins?