Answer the following question given this paragraph: The target cell then needs to be able to recognize the signal. Chemical signals are received by the target cell on receptor proteins. Most receptor proteins are found associated with the plasma membrane, but some are also found inside the cell. Receptor proteins are very specific for only one particular signal molecule, much like a lock that recognizes only one key. Therefore, a cell has lots of receptor proteins to recognize the large number of cell signal molecules. There are three stages to sending and receiving a cell "message:" reception, transduction, and response. Q: Chemical signals are received by the target cell on what? Choices: - acidic proteins - inceptor proteins - parent proteins - receptor proteins A:
receptor proteins
Answer the following question given this paragraph: Electromagnetic radiation is energy that travels in waves across space as well as through matter. Most of the electromagnetic radiation on Earth comes from the sun. Like other waves, electromagnetic waves are characterized by certain wavelengths and wave frequencies. Wavelength is the distance between two corresponding points on adjacent waves. Wave frequency is the number of waves that pass a fixed point in a given amount of time. Electromagnetic waves with shorter wavelengths have higher frequencies and more energy. Q: What type of energy travels in waves across space as well as through matter? Choices: - kinetic energy - mechanical radiation - thermal energy - electromagnetic radiation A:
electromagnetic radiation
Q: Answer the following question given this paragraph: Lycophytes follow the pattern of alternation of generations seen in the bryophytes, except that the sporophyte is the major stage of the lifecycle. The gametophytes do not depend on the sporophyte for nutrients. Some gametophytes develop underground and form mycorrhizal associations with fungi. In club mosses, the sporophyte gives rise to sporophylls arranged in strobili, cone-like structures that give the class its name. Lycophytes can be homosporous or heterosporous. Q: Some gametophytes develop underground and form mycorrhizal associations with what? Choices: - protists - plants - animals - fungi A:
A: fungi
Question: Answer the following question given this paragraph: Alzheimer's disease is another disease that occurs mainly in older adults. In Alzheimer's disease, a person gradually loses most normal mental functions. The patient typically suffers from increasing memory loss, confusion, and mood swings. The cause of Alzheimer's isn't known for certain, but it appears to be associated with certain abnormal changes in the brain. There is no known cure for this devastating disease, but medicines may be able to slow its progression. Q: Alzheimer's disease is a disease that occurs mainly in what population? Choices: - younger adults - female adults - white adults - older adults A:
Answer: older adults
*Question*
Answer the following question given this paragraph: All of the outer planets have numerous moons. They also have planetary rings made of dust and other small particles. Only the rings of Saturn can be easily seen from Earth. Q: The rings of what planet can be easily seen from earth? Choices: - Venus - jupiter - Neptune - saturn A:
**Answer**
saturn
(Question)
Answer the following question given this paragraph: Mammals have the ability to regulate body temperature. This is an advantage, as Earth's climate went through sudden and dramatic changes. Mastodons, saber tooth tigers, hoofed mammals, whales, primates and eventually humans all lived during the Cenozoic Era ( Figure below ). Q: The ability to regulate what, which is possessed by mammals, was an advantage as earth's climate went through sudden and dramatic changes? Choices: - mutations - reflex behaviors - hair growth - body temperature A:
(Answer)
body temperature