Answer the following question given this paragraph: Prokaryotic cells are cells without a nucleus. Q: What term is used to describe cells without a nucleus? Choices: - Simple - unicellular - monophyletic - prokaryotic A:
prokaryotic
(Question)
Answer the following question given this paragraph: An n-type (negative-type) semiconductor consists of silicon and an element such as phosphorus that gives the silicon crystal extra electrons. You can see this in the Figure above . An n-type semiconductor is like the negative terminal of a battery. Q: Silicon with an element that gives it extra electrons is which type of semiconductor? Choices: - m. Type - i.g - type - k. - type - n-type A:
(Answer)
n-type
Ques: Answer the following question given this paragraph: A sexually transmitted infection (STI) is a disease that spreads mainly through sexual contact. STIs are more common in teens and young adults than in older people. Bacterial STIs include chlamydia, gonorrhea, and syphilis. Viral STIs include genital warts, genital herpes, and AIDS. Q: What are chlamydia, gonorrhea, and syphilis an example of? Choices: - metabolic disorders - genetic diseases - viral stis - bacterial stis A:
Ans: bacterial stis
(Q).
Answer the following question given this paragraph: If a cell were a house, the plasma membrane would be walls with windows and doors. Moving things in and out of the cell is an important role of the plasma membrane. It controls everything that enters and leaves the cell. There are two basic ways that substances can cross the plasma membrane: passive transport and active transport. Q: In how many basic was can substances cross the plasma membrane? Choices: - one - three - four - two A:
(A).
two
Ques:Answer the following question given this paragraph: Some animal-like protists use their "tails" to eat. These protists are called filter-feeders . They acquire nutrients by constantly whipping their tails, called flagellum , back and forth. The whipping of the flagellum creates a current that brings food into the protist. Q: Protists which use their tails to eat are called what? Choices: - swimmers - cycle - feeders - flagellators - filter-feeders A:

Ans:filter-feeders
Ques: Answer the following question given this paragraph: A common method of producing charge in the lab is to rub cat or rabbit fur against stiff rubber, producing a negative charge on the rubber rod. If you hold a rubber rod on one end and rub only the tip of the other end with a fur, you will find that only the tip becomes charged. The electrons you add to the tip of the rod remain where you put them instead of moving around on the rod. Rubber is an insulator. Insulators are substances that do not allow electrons to move through them. Glass, dry wood, most plastics, cloth, and dry air are common insulators. Materials that allow electrons to flow freely are called conductors. Metals have at least one electron that can move around freely, and all metals are conductors. Q: Rubber is an example of what type of substances that do not allow electrons to move through them? Choices: - conductor - semi-conductor - solids - insulators A:
Ans:
insulators