When does a community undergo succession

1. after major ecological changes

2 when all its animal life is destroyed

3 every few years until it is stable

Biological term for an organism that is capable of both heterotrophy and photosynthesis

Which of the following most accurately describes the brain during sleep? a. The brain goes dormant and does not emit brain waves. b. The brain remains active and emits brain waves. c. The brain goes dormant and emits brain waves. d.

The client is brought to the clinic with dementia and is unable to recognize ordinary objects, such as a pen or notebook. the family is upset and concerned. the nurse notes that this is a symptom of:

A vasectomy is a voluntary procedure in which males can sterilize themselves. The procedure involves cutting the vas deferens.

Lymphatic vessels begin in peripheral tissues and ultimately drain into

The cerebellum can be permanently damaged by stroke or temporarily affected by drugs or alcohol. The resulting disturbance in motor control is known as:

A narrow strip of land connecting two larger land bodies is known as a (n: a. peninsula b. bridgeland c. spine d. archipelago e. isthmus

What are fat soluble signalmolecules that are derived from cholesterol?

A wealthy businessman uses modern DNA technology to bring dinosaurs back from extinction. He breeds many varieties of dinosaurs and plans to open a theme park where visitors can see them.

If a DNA sample contains 25 percent adenine (A), what percent of thymine, cytosine, and guanine must it contain? Use Chargaff's rule to construct your answer