Answer the following question given this paragraph: Q: Amplification that occurs in which cells often requires signal transduction pathways involving second messengers? Choices: - axons - optic nerves - catayst cells - sensory receptor A:
sensory receptor
Answer the following question given this paragraph: Fossil evidence shows that amphibians evolved about 365 million years ago from a lobe-finned lungfish ancestor. As the earliest land vertebrates, they were highly successful. Some of them were much larger than today's amphibians. For more than 100 million years, amphibians remained the dominant land vertebrates. Then some of them evolved into reptiles. Once reptiles appeared, with their amniotic eggs, they replaced amphibians as the dominant land vertebrates. Q: What creatures evolved from a lobe-finned lungfish ancestor? Choices: - birds - horses - mice - amphibians A:
amphibians
Q: Answer the following question given this paragraph: Beautiful sunsets are another manifestation of Rayleigh scattering that occurs when light travels long distances through the atmosphere. The blue light and some green is scattered away, making the sun appear red. Q: What makes sunsets appear red? Choices: - wavelength scattering - reflection scattering - floral scattering - rayleigh scattering A:
A: rayleigh scattering
Question: Answer the following question given this paragraph: Q: Eggs reside in the mesohyl, but sperm are carried out of the sponge by what? Choices: - air current - phloem - ion channels - water current A:
Answer: water current
*Question*
Answer the following question given this paragraph: Nuclear changes occur with a simultaneous release of energy. Where does this energy come from? If we could precisely measure the masses of the reactants and the products of a nuclear reaction, we would notice that the amount of mass drops slightly in the conversion from reactants to products. Consider the following nuclear reaction, in which the molar mass of each species is indicated to four decimal places:. Q: Nuclear changes occur with a simultaneous release of what, and a slight drop in mass? Choices: - oil - mineral - hydrogen - energy A:
**Answer**
energy
(Q).
Answer the following question given this paragraph: Gymnosperms are vascular plants that produce seeds in cones . Examples include conifers such as pine and spruce trees. The gymnosperm life cycle has a dominant sporophyte generation. Both gametophytes and the next generation's new sporophytes develop on the sporophyte parent plant. Figure below is a diagram of a gymnosperm life cycle. Q: What type of vascular plants produce seeds in cones? Choices: - Proteins - angiosperms - lipids - gymnosperms A:
(A).
gymnosperms