Answer the following question given this paragraph: Photosynthesis provides over 99% of the energy supply for life on Earth. A much smaller group of autotrophs - mostly bacteria in dark or low-oxygen environments - produce food using the chemical energy stored in inorganic molecules such as hydrogen sulfide, ammonia, or methane. While photosynthesis transforms light energy to chemical energy, this alternate method of making food transfers chemical energy from inorganic to organic molecules. It is therefore called chemosynthesis , and is characteristic of the tubeworms shown in Figure below . Some of the most recently discovered chemosynthetic bacteria inhabit deep ocean hot water vents or "black smokers. " There, they use the energy in gases from the Earth's interior to produce food for a variety of unique heterotrophs: giant tube worms, blind shrimp, giant white crabs, and armored snails. Some scientists think that chemosynthesis may support life below the surface of Mars, Jupiter's moon, Europa, and other planets as well. Ecosystems based on chemosynthesis may seem rare and exotic, but they too illustrate the absolute dependence of heterotrophs on autotrophs for food. Q: What process provides over 99% of the energy supply for life on earth? Choices: - gases - nutrients - Carbon - photosynthesis A:
photosynthesis

Answer the following question given this paragraph: Climate is the most important factor in determining the type of soil that forms in a particular area. Q: What is the most important factor in determining the type of soil that forms in a particular area? Choices: - landscape - altitude - migration - climate A:
climate

Answer the following question given this paragraph: Figure 17.5 Viruses can be complex in shape or relatively simple. This figure shows three relatively complex virions: the bacteriophage T4, with its DNA-containing head group and tail fibers that attach to host cells; adenovirus, which uses spikes from its capsid to bind to the host cells; and HIV, which uses glycoproteins embedded in its envelope to do so. Notice that HIV has proteins called matrix proteins, internal to the envelope, which help stabilize virion shape. HIV is a retrovirus, which means it reverse transcribes its RNA genome into DNA, which is then spliced into the host's DNA. (credit "bacteriophage, adenovirus": modification of work by NCBI, NIH; credit "HIV retrovirus": modification of work by NIAID, NIH). Q: Hiv is a retrovirus, which means it reverse transcribes its rna genome into what? Choices: - atp - ribosomes - amino acid chains - dna A:
dna

Answer the following question given this paragraph: Different types of plant cells include parenchymal, collenchymal, and sclerenchymal cells. The three types differ in structure and function. Q: Parenchymal, collenchymal, and sclerenchymal cells are associated with what types of living things? Choices: - primates - parasites - fungi - plants A:
plants