In which reaction would the activation energy result in an endothermic reaction?.

1. water freezing

2. an egg cooking

3. a candle burning

4. iron rusting

Methane gas is burned to provide heat. The chemical reaction for this process is shown in the equation below. CH4 + 2O2 CO2 + 2H2O + energyWhat are the products in this chemical reaction? A. O2 + CO2 + energy B. CO2 + CH4 C. CO2 + 2H2O + energy D.

True or false: a cell spends 50% of its life in mitosis.

The red color of soil found in Georgia and other warm, humid areas is caused by A: physical weathering B: the oxidation of iron oxides C: the high amount of fixed nitrogen D: humus being composed of organic compounds

What is Cystic Fibrosis?

This Punnett square shows flower color inheritance in snapdragons. What is the expected ratio of red flowers to pink flowers to white flowers in the F2 generation? A. 1 red: 2 pink: 1 white B. 9 red: 3 pink: 1 white C. 4 red: 1 white D. all pink

What do you think would happen if you added a large volume of fresh water to the roots of the plant? answer in terms of osmosis and salt and water concentration. Would water move into the plant, out of the plant, or stay where it is? explain why.

The organ that provides mechanical protection and nutritional support for the developing embryo is the select one: a. vagina. b. uterus. c. cervix. d. uterine tube.

How did large jaws and teeth become typical traits of jaguars?

Which molecule would be the most affected by limited nitrogen? myofibrillar proteins in muscle glucose molecules in starch fat molecules surrounding organs cellulose molecules in plant cell walls

Are A chromosome and chromatid are the same thing.