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

Q: What creatures evolved from a lobe-finned lungfish ancestor? Choices: - birds - horses - mice - amphibians A:
amphibians

Q: Q: What makes sunsets appear red? Choices: - wavelength scattering - reflection scattering - floral scattering - rayleigh scattering A:
A: rayleigh scattering

Question: 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*
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).
Q: What type of vascular plants produce seeds in cones? Choices: - Proteins - angiosperms - lipids - gymnosperms A:
(A).
gymnosperms