Q: Answer the following question given this paragraph: Animal communication, like most other animal behaviors, increases the ability to survive and have offspring. This is known as fitness. Communication increases fitness by helping animals find food, defend themselves from predators, mate, and care for offspring. Q: What term describes the overall ability of an animal to survive and produce offspring? Choices: - change - evolution - abilities - fitness A:
A: fitness

Q: Answer the following question given this paragraph: Carbohydrates include sugars, starches, and fiber. Sugars and starches are used by the body for energy. One gram of carbohydrates provides 4 Calories of energy. Fiber, which is found in plant foods, cannot be digested but is needed for good health. Simple carbohydrates are small carbohydrates found in foods such as fruits and milk. These carbohydrates include lactose, fructose and glucose. Complex carbohydrates are much larger molecules. Starch, which is a complex carbohydrate found in vegetables and grains, is made of thousands of glucose units bonded together. Q: What category of food includes sugars, starches and fibers? Choices: - enzymes - proteins - alcohols - carbohydrates A:
A: carbohydrates

Q: Answer the following question given this paragraph: Sympatric Speciation Can divergence occur if no physical barriers are in place to separate individuals who continue to live and reproduce in the same habitat? The answer is yes. The process of speciation within the same space is called sympatric speciation; the prefix "sym" means same, so "sympatric" means "same homeland" in contrast to "allopatric" meaning "other homeland. " A number of mechanisms for sympatric speciation have been proposed and studied. One form of sympatric speciation can begin with a serious chromosomal error during cell division. In a normal cell division event chromosomes replicate, pair up, and then separate so that each new cell has the same number of chromosomes. However, sometimes the pairs separate and the end cell product has too many or too few individual chromosomes in a condition called aneuploidy (Figure 18.14). Q: Species divergence often, but not always, occurs because of what type of barrier between species? Choices: - emotional - visible - language - physical A:
A: physical

Q: Answer the following question given this paragraph: Archaea that live in extremely hot environments are called thermophiles. Q: What are archaea that live in extremely hot environments called? Choices: - hypothermic - hemophiliacs - tardigrades - thermophiles A:
A: thermophiles