Answer the following question given this paragraph: Pluto has three moons of its own. The largest, Charon, is big compared to Pluto. The Pluto-Charon system is sometimes called a double dwarf planet ( Figure above ). Two smaller moons, Nix and Hydra, were discovered in 2005. Q: How many moons does pluto have? Choices: - six - two - four - three A:
three
Answer the following question given this paragraph: 32.3 Asexual Reproduction Many plants reproduce asexually as well as sexually. In asexual reproduction, part of the parent plant is used to generate a new plant. Grafting, layering, and micropropagation are some methods used for artificial asexual reproduction. The new plant is genetically identical to the parent plant from which the stock has been taken. Asexually reproducing plants thrive well in stable environments. Plants have different life spans, dependent on species, genotype, and environmental conditions. Parts of the plant, such as regions containing meristematic tissue, continue to grow, while other parts experience programmed cell death. Leaves that are no longer photosynthetically active are shed from the plant as part of senescence, and the nutrients from these leaves are recycled by the plant. Other factors, including the presence of hormones, are known to play a role in delaying senescence. Q: What is the type of reproduction where part of the parent plant is used to generate a new plant? Choices: - sexual reproduction - coaxed reproduction - byproduct reproduction - asexual reproduction A:
asexual reproduction
Q: Answer the following question given this paragraph: Toxic heavy metals include mercury and lead. Mercury is used in some industrial processes. It is also found in fluorescent light bulbs. Lead was once widely used in gasoline, paint, and pipes. It is still found in some products. Q: Mercury and lead, which was once widely used in paint and gasoline, are examples of what type of metals? Choices: - gaseous heavy metals - alloys - sulfuric heavy metals - toxic heavy metals A:
A: toxic heavy metals
Question: Answer the following question given this paragraph: An amide can be formed by combining a carboxylic acid and an amine. Only primary and secondary amines can be used to form amides, since they have a hydrogen that can be replaced with the carbonyl carbon; tertiary amines will not form amides. The amide shown in the Figure above was formed from a carboxylic acid and a primary amine. Q: What can be combined with an amine to form an amide? Choices: - carbon dioxide - ketones - acetic acid - carboxylic acid A:
Answer: carboxylic acid
*Question*
Answer the following question given this paragraph: Negatively charged and has a very small mass compared to the mass of other subatomic particles. Electrons were initially called cathode rays. Q: What were the electrons initially called? Choices: - gamma rays - plasma rays - polymer rays - cathode rays A:
**Answer**
cathode rays
*Question*
Answer the following question given this paragraph: Q: From what did the first proto-oncogenes arise? Choices: - spores - carcinogens - bacteria - viral infections A:
**Answer**
viral infections