Answer the following question given this paragraph: Jet streams are fast-moving air currents high in the troposphere. They are also the result of unequal heating of the atmosphere. Jet streams circle the planet, mainly from west to east. The strongest jet streams are the polar jets. The northern polar jet is shown in Figure below . Q: What is the term for the fast-moving air currents high in the troposphere? Choices: - gale force winds - ocean streams - global winds - jet streams A:
jet streams
Answer the following question given this paragraph: Q: What basic plant structure is the site of photosynthesis? Choices: - nucleus - spores - roots - leaves A:
leaves
Q: Answer the following question given this paragraph: Q: What is the termination of a pregnancy in progress called? Choices: - contraception - miscarriage - delivery - abortion A:
A: abortion
Question: Answer the following question given this paragraph: Polar compounds, such as water, are compounds that have a partial negative charge on one side of each molecule and a partial positive charge on the other side. All polar compounds contain polar bonds (although not all compounds that contain polar bonds are polar. ) In a polar bond, two atoms share electrons unequally. One atom attracts the shared electrons more strongly, so it has a partial negative charge. The other atom attracts the shared electrons less strongly, so it is has a partial positive charge. In a water molecule, the oxygen atom attracts the shared electrons more strongly than the hydrogen atoms do. This explains why the oxygen side of the water molecule has a partial negative charge and the hydrogen side of the molecule has a partial positive charge. Q: All polar compounds contain what type of bonds? Choices: - balanced - strong - weak - polar A:
Answer: polar
*Question*
Answer the following question given this paragraph: Vertebrates are a subphylum of the phylum Chordata. Like all chordates, vertebrates have a notochord, a dorsal hollow nerve cord, pharyngeal slits, and a post-anal tail. What other characteristics do vertebrates have? What traits set them apart from invertebrate chordates?. Q: Vertebrates are a subphylum of what phylum? Choices: - arthropoda - hydrozoa - porifera - chordata A:
**Answer**
chordata
(Question)
Answer the following question given this paragraph: Q: Which stage has already been completed by the time sea urchin eggs are released from the female? Choices: - fetus - secondary - mitoses - meiosis A:
(Answer)
meiosis