An increase in the calcium ion level in the sarcoplasm starts the sliding of the thin filaments. when the level of calcium ions declines, sliding stops.

a. True

b. False

What is the pathogen's common name?

What can happen when earth materials overcome the force of friction holding them together? A. a flood B. a landslide C. erosion D. wildfire

Describe the process that drives the uptake of oxygen and the release of carbon dioxide from living organisms such as humans, fish, and flatworms.

The climate of a biome is determined by all of these factors except?

2. Each gram of glucose contains approximately how much energy? a. 1 calorie c. 4 calories b. 1 Calorie 1 d. 4 Calories

What is parenthood or society in a world that includes clones?

Under what conditions will the body use significant amounts of protein for energy during exercise? a. Inadequate calorie intakeb. Inadequate calorie intake and inadequate carbohydrate storesc. Inadequate carbohydrate storesd. Inadequate fluid intake

Which of the following is a true statement about hypotheses? A. It is not possible to test hypotheses through scientific investigations. B. Even if hypotheses are not supported by data, they can still be valuable. C.

A homozygous recessive female mates with a heterozygous male. What percentage of the offspring could be homozygous dominant? a. 50% c. 0% b. 100% d. 25%

Which best describes the vulva? a) It is a muscular organ where a developing offspring grows. b) It is the external part of the female genital organs. c) It is the birth canal of the female reproductive system.