Answer the following question given this paragraph: High levels of nutrients, called eutrophication, can cause conditions that deprive fish of oxygen. Q: Eutrophication, or high levels of nutrients, can cause conditions that deprive fish of what vital gas? Choices: - dioxide - hydrogen - nitrogen - oxygen A:
oxygen
Answer the following question given this paragraph: Q: What is the lowest level of organization that can perform all activities required for life? Choices: - organs - nucleii - tissues - the cell A:
the cell
Q: Answer the following question given this paragraph: Sperm ( Figure below ), the male reproductive cells, are tiny. In fact, they are the smallest cells in the human body. What do you think a sperm cell looks like? Some people think that it looks like a tadpole. Do you agree?. Q: What are the male reproductive cells called? Choices: - mucus - ova - plasma - sperm A:
A: sperm
Question: Answer the following question given this paragraph: Q: Ectotherms undergo a variety of changes at the cellular level to acclimatize to shifts in what? Choices: - precipitation - oxygen - air pressure - temperature A:
Answer: temperature
*Question*
Answer the following question given this paragraph: Anabolic reactions involve forming bonds. Smaller molecules are combined to form larger ones. For example, simple sugars are combined to form complex carbohydrates. Anabolic reactions require energy, so they are endothermic. Q: Anabolic reactions require energy, so they are considered what type of reaction? Choices: - autotrophic - exothermic - hydrostatic - endothermic A:
**Answer**
endothermic
Q: Answer the following question given this paragraph: 23.5 The Small and Large Intestines The three main regions of the small intestine are the duodenum, the jejunum, and the ileum. The small intestine is where digestion is completed and virtually all absorption occurs. These two activities are facilitated by structural adaptations that increase the mucosal surface area by 600-fold, including circular folds, villi, and microvilli. There are around 200 million microvilli per square millimeter of small intestine, which contain brush border enzymes that complete the digestion of carbohydrates and proteins. Combined with pancreatic juice, intestinal juice provides the liquid medium needed to further digest and absorb substances from chyme. The small intestine is also the site of unique mechanical digestive movements. Segmentation moves the chyme back and forth, increasing mixing and opportunities for absorption. Migrating motility complexes propel the residual chyme toward the large intestine. The main regions of the large intestine are the cecum, the colon, and the rectum. The large intestine absorbs water and forms feces, and is responsible for defecation. Bacterial flora break down additional carbohydrate residue, and synthesize certain vitamins. The mucosa of the large intestinal wall is generously endowed with goblet cells, which secrete mucus that eases the passage of feces. The entry of feces into the rectum activates the defecation reflex. Q: The duodenum, the jejunum, and the ileum are the main regions of which organ? Choices: - lungs - large intestine - heart - small intestine A:
A: small intestine