How many tetrads form during synapsis of meiosis for humans?

Being nocturnal is an adaptation that plants and animals use to deal with water scarcity and dry climate. Which biome is likely to have the maximum number of nocturnal animals?

What is one way that changes can occur in a DNA sequence?

In which of the following ways does genetic information typically flow in an organism? A. DNA - - - > proteins - - - > RNA B. proteins - - - > RNA - - - > DNA C. DNA - - - > RNA - - - > proteins D. RNA - - - > proteins - - - > DNA

Which of the the following is NOT part of a nucleic acid? A.) phosphate B.) 5-carbon sugar C.) nitrogen ousted base D.) Amino acid

All seed plants reproduce using , which are tiny grains that develop into sperm cells. When a sperm cell fertilizes an egg, a (n) develops, which contains an embryo, stored food, and a protective coat.

The rigid, outer layer of Earth is referred to as the asthenosphere. a. True b. False

GMU professors in Biology/Medicine area founded companies or are the members of Scientific Advisory Boards of the companies.

Which process causes clouds to form on particles of dust

Which is an advantage of producing genetically engineered crops that have pest-resistant genes? bioaccumulation of crops over time allows farmers to grow any crop they want reduces the use of pesticides for certain insects gene transfer to nontarget

If an individual was exercising at an exercise intensity of 1.5 liters of oxygen per minute, and had a mechanical efficiency of 20 percent, how many heat Calories would this person generate in 30 minutes?