Answer the following question given this paragraph: described in the chapter on muscle tissue, an action potential travels along the motor neuron axon into the periphery. The axon terminates on muscle fibers at the neuromuscular junction. Acetylcholine is released at this specialized synapse, which causes the muscle action potential to begin, following a large potential known as an end plate potential. When the lower motor neuron excites the muscle fiber, it contracts. All of this occurs in a fraction of a second, but this story is the basis of how the nervous system functions. Q: The axon terminates on muscle fibers at the neuromuscular junction. acetylcholine is released at this specialized synapse, which causes the muscle action potential to begin, following a large potential known as an end plate potential. when the lower motor neuron excites the muscle fiber, it contracts. all of this occurs in a fraction of a second, but this story is the basis of how this functions? Choices: - cardiovascular system - respiratory system - muscular system - nervous system A:
nervous system
(Question)
Answer the following question given this paragraph: Has a double-bonded carbon-oxygen bond (one sigma bond and one pi bond). The carbon to which the oxygen is attached has one hydrogen atom connected to it. Q: Which type of double bond has a sigma bond and a pi bond? Choices: - dioxide - oxygen bond - Covalent Bonds - sodium - oxygen bond - carbon-oxygen bond A:
(Answer)
carbon-oxygen bond
Ques: Answer the following question given this paragraph: Q: By impacting plant species and the animals they support, destruction of habitat threatens what event? Choices: - overpopulation - depletion - mutation - extinction A:
Ans: extinction
(Q).
Answer the following question given this paragraph: Cnidarians are aquatic invertebrates in Phylum Cnidaria. They include jellyfish and corals, both of which have radial symmetry. All cnidarians have nematocysts, and many are bioluminescent. They may exist in medusa and/or polyp form. Corals build hard exoskeletons that grow to become coral reefs. Q: Corals build hard exoskeletons that grow to become coral what? Choices: - beds - layers - crystals - reefs A:
(A).
reefs
Ques:Answer the following question given this paragraph: At the ribosome, the amino acids are joined together to form a chain of amino acids. Q: Amino acids are joined together to form a chain at what molecular structure? Choices: - chloroplasts - chromosomes - DNA - ribosomes A:

Ans:ribosomes
Answer the following question given this paragraph: Each type of electromagnetic radiation has a characteristic range of wavelengths. The longer the wavelength (or the more stretched out it appears), the less energy is carried. Short, tight waves carry the most energy. This may seem illogical, but think of it in terms of a piece of moving rope. It takes little effort by a person to move a rope in long, wide waves. To make a rope move in short, tight waves, a person would need to apply significantly more energy. The sun emits (Figure 5.10) a broad range of electromagnetic radiation, including X-rays and ultraviolet (UV) rays. The higher-energy waves are dangerous to living things; for example, X-rays and UV rays can be harmful to humans. Q: Each type of electromagnetic radiation has a characteristic range of wavelengths. the longer the wavelength (or the more stretched out it appears), the less energy is carried. short, tight waves carry what? Choices: - kinetic energy - heat - sound - most energy A:
most energy