Answer the following question given this paragraph: A chemical bond is a force of attraction between atoms or ions. Bonds form when atoms share or transfer valence electrons. Valence electrons are the electrons in the outer energy level of an atom that may be involved in chemical interactions. Valence electrons are the basis of all chemical bonds. For a video introduction to chemical bonds, go to this URL: http://www. youtube. com/watch?v=CGA8sRwqIFg . Q: What forms when atoms share or transfer valence electrons? Choices: - replicas - levels - fusion - bonds A:
bonds
Answer the following question given this paragraph: Current Situation : Currently the heating effect of extra greenhouse gases (since the start of the industrial revolution) is equal to about . Thus the recent period has recorded parallel increases in concentration of carbon dioxide and average global temperature. As more greenhouse gases are put into the atmosphere the temperature will increase further. There are certain effects of a warmer Earth (discussed more in optional section), which could accelerate the process, even if no more greenhouse gases are put into the atmosphere (an unlikely prospect for the foreseeable future). Q: Earth's temperature will increase further as more of what colorfully nicknamed gases are put into the atmosphere? Choices: - bluehouse gases - blue dioxide gases - green dioxide gases - greenhouse gases A:
greenhouse gases
Q: Answer the following question given this paragraph: Starch is a large, complex carbohydrate made of thousands of glucose units (monomers) joined together. Starches are found in foods such as vegetables and grains. Starches are broken down by the body into sugars that provide energy. Breads and pasta are good sources of complex carbohydrates. Q: Starch is a large, complex carbohydrate made of thousands of _____ joined together? Choices: - glucose partitions ( monomers ) - glucose orders ( monomers ) - glucose divisions ( monomers ) - glucose units (monomers) A:
A: glucose units (monomers)
Question: Answer the following question given this paragraph: Q: What phase follows ovulation? Choices: - interstitial phase - telophase - varicose phase - luteal phase A:
Answer: luteal phase
*Question*
Answer the following question given this paragraph: The rate of evolution is influenced by how quickly the environment is changing. Long periods of gradual evolutionary change may be interrupted by short bursts of rapid change. Q: The rate of evolution is influenced by the rate of changes to what? Choices: - dna - migration - the earth - the environment A:
**Answer**
the environment
(Q).
Answer the following question given this paragraph: Q: Binding of acetylcholine to receptors on the muscle fiber leads to a? Choices: - repolarization - conduction - excitation - depolarization A:
(A).
depolarization