When chromosomes are duplicated before mitosis or meiosis, the amount of DNA in the

nucleus is tripled

The macromolecules in biochemistry are proteins, carbohydrates, lipids and nucleic acids. What main elements do all of have in common? A) carbon and sulfur B) carbon and hydrogen C) oxygen and nitrogen D) oxygen and phosphorus

Which process causes the easterlies to flow in the direction they do? A. movement of a convection cell B. even heating of the earth at all places C. solar wind D. Coriolis effect

Carbonic acid dissolved in water is a a.) physical weathering agent c.) biological weathering agent. b.) chemical weathering agent d.) mechanical weathering agent.

What are 3 adaptations that frogs have that makes them amphibians

The tissue responsible for transporting carbohydrates from leaves to other parts of the plant. a) xylem b) phloem c) cambium

What do scientists think the main cause for global warming is?

Which organelle is the "post office" of the cell? * nucleus endoplasmic reticulum golgi apparatus cell membrane

Imagine that you want to breed a species of rose that has a wonderful smell. You have many different types of roses, but none of the individual roses has the wonderful smell that you want.

Which term refers to contrasting forms of the same gene

As a mouse undergoes respiration, it produces lactate. This type of respiration can be classified as acidic alcoholic aerobic anaerobic