Answer the following question given this paragraph: A: You can tell that they are different compounds from their very different properties. Carbon dioxide is a harmless gas that living things add to the atmosphere during respiration. Carbon monoxide is a deadly gas that can quickly kill people if it becomes too concentrated in the air. Q: What type of gas is a harmless gas that living things add to the atmosphere during respiration? Choices: - helium - oxygen - Hydrogen - carbon dioxide A:
carbon dioxide
Answer the following question given this paragraph: Animals may eat and drink at certain times of day as well. Humans have daily cycles of behavior, too. Most people start to get sleepy after dark and have a hard time sleeping when it is light outside. Daily cycles of behavior are called circadian rhythms . Q: What is the term for daily cycles of behavior, like the sleep-wake cycle? Choices: - daily rhythms - variable rhythms - behavioral rhythms - circadian rhythms A:
circadian rhythms
Q: Answer the following question given this paragraph: Cations have positive charges, and anions have negative charges. Q: Cations have what type of charge? Choices: - negative - neutral - constant - positive A:
A: positive
Question: Answer the following question given this paragraph: Q: What is necessary for growth and energy? Choices: - breeding - warmth - determination - nutrients A:
Answer: nutrients
*Question*
Answer the following question given this paragraph: The nucleus is the largest organelle in a eukaryotic cell and contains most of the cell's DNA. Other organelles in eukaryotic cells include the mitochondria, endoplasmic reticulum, ribosomes, Golgi apparatus, vesicles, vacuoles, and centrioles (in animal cells only). Each type of organelle has important functions in the cell. Q: What is the largest organelle in a eukaryotic cell? Choices: - epidermis - cortex - apoptosis - nucleus A:
**Answer**
nucleus
Answer the following question given this paragraph: Bile salts are bile acids that help to break down fat. Bile acids are made in the liver. When you eat a meal, bile is secreted into the intestine, where it breaks down the fats ( Figure below ). Q: In which organ are bile acids made Choices: - spleen - kidney - gall bladder - liver A:
liver