African elephants flat their large ears to cool off. Which biology theme does this phenomenon represents?

A. continuity and change

B. relationship of stricture to function

C. interdependence in nature

Which statements describe asexual reproduction? Check all that apply A. results in offspring with different DNA than parent B. results in offspring with the same DNA as parent C. requires only one parent to produce offspring D.

3 Question Select the correct answer. Which of these is a component of the atmosphere? rock oxygen sediments soil

What is the difference in the cell cycle between healthy cells and cancerous cells?

Occurs when the body receives antibodies from another source, such as a child receiving antibodies from its mother

What is a biological effect of the hydrogen bonding between molecules of water

A scientific name has to refer to what

The changes in the surrounding environment can have an effect on plants too for a few weeks on the autumn season normally green leaves of deciduous plants acquire a red to yellow color how and why does this change in color happen?

Many of the biochemical reactions that occur within cells are catalyzed by enzymes. Which of the following statements is true about most enzyme-assisted reactions?

A cheeseburger from a fast food restaurant contains 19 g of fat, 20 g of carbohydrate, and 28 g of protein. How many kcal of energy does the cheeseburger contain

How do enzymes catalyze chemical reactions (don't just say "they lower the activation energy", give me specific mechanisms) ?