Answer the following question given this paragraph: A nerve impulse begins when a neuron receives a chemical stimulus. The impulse travels down the axon membrane as an electrical action potential to the axon terminal. The axon terminal releases neurotransmitters that carry the nerve impulse to the next cell. Q: What begins when a neuron receives a chemical stimulus? Choices: - a induce impulse - a metabolism impulse - nerve reaction - a nerve impulse A:
a nerve impulse
Answer the following question given this paragraph: Figure 9.3 Intervertebral Disc An intervertebral disc unites the bodies of adjacent vertebrae within the vertebral column. Each disc allows for limited movement between the vertebrae and thus functionally forms an amphiarthrosis type of joint. Intervertebral discs are made of fibrocartilage and thereby structurally form a symphysis type of cartilaginous joint. Q: What are intervertebral discs made of? Choices: - intercartilage - fibrotissue - connective cartilage - fibrocartilage A:
fibrocartilage
Q: Answer the following question given this paragraph: The cardiovascular system moves nutrients and other substances throughout the body. Q: Which human body system system moves nutrients and other substances throughout the body? Choices: - Digestive system - Muscular system - Integumentary system - cardiovascular system A:
A: cardiovascular system
Question: Answer the following question given this paragraph: Restriction enzymes or restriction endonucleases are prokaryotic enzymes that recognize and cut DNA at specific sequences, called restriction sites. It is believed that they evolved as a defense mechanism against foreign DNA, such as viral DNA. Over 3,000 restriction enzymes have been identified. Some of the more common restriction enzymes are shown in the table below, where up and down arrows show the sites of cleavage. Restriction enzymes are named based on the prokaryotic organism they are isolated from. For example, those isolated from Escherichia coli would begin with Eco. As the Table below shows, digestion with the restriction enzymes will result in overlapping or blunt ends. EcoRI produces overlapping "sticky" ends: the enzyme cleaves between the G and A on both strands. On the other hand, SmaII restriction enzyme cleavage produces "blunt" ends. The enzyme cleaves between the G and C on both strands. Q: Restriction enzymes or restriction endonucleases are prokaryotic enzymes that recognize and cut what at specific sequences? Choices: - mitochondria - bacteria - rna - dna A:
Answer: dna
*Question*
Answer the following question given this paragraph: Q: The community of all of the living and nonliving parts of an environment is known as what? Choices: - habitat - population - biodiversity - ecosystem A:
**Answer**
ecosystem
Q: Answer the following question given this paragraph: 42.1 Circulatory systems link exchange surfaces with cells throughout the body. Q: What organ systems link exchange surfaces with cells throughout the body? Choices: - vascular - pulmonary - nervous - circulatory A:
A: circulatory