Q: Answer the following question given this paragraph: Consider the example of water forming from hydrogen and oxygen. Both hydrogen and oxygen gases exist as diatomic ("two-atom") molecules. These molecules are the reactants in the reaction. The Figure below shows that bonds must break to separate the atoms in the hydrogen and oxygen molecules. Then new bonds must form between hydrogen and oxygen atoms to form water molecules. The water molecules are the products of the reaction. Q: What is the name for a molecule with two atoms? A:

OPTIONS:
- hydrostatic
- ionized
- covalent
- diatomic

A: diatomic

input: OPTIONS:
- trees
- pathogens
- lizards
- bacteria Now, answer this question: Answer the following question given this paragraph: Carl Woese and the Phylogenetic Tree In the past, biologists grouped living organisms into five kingdoms: animals, plants, fungi, protists, and bacteria. The organizational scheme was based mainly on physical features, as opposed to physiology, biochemistry, or molecular biology, all of which are used by modern systematics. The pioneering work of American microbiologist Carl Woese in the early 1970s has shown, however, that life on Earth has evolved along three lineages, now called domainsBacteria, Archaea, and Eukarya. The first two are prokaryotic cells with microbes that lack membrane-enclosed nuclei and organelles. The third domain contains the eukaryotes and includes unicellular microorganisms together with the four original kingdoms (excluding bacteria). Woese defined Archaea as a new domain, and this resulted in a new taxonomic tree (Figure 1.17). Many organisms belonging to the Archaea domain live under extreme conditions and are called extremophiles. To construct his tree, Woese used genetic relationships rather than similarities based on morphology (shape). Woese's tree was constructed from comparative sequencing of the genes that are universally distributed, present in every organism, and conserved (meaning that these genes have remained essentially unchanged throughout evolution). Woese's approach was revolutionary because comparisons of physical features are insufficient to differentiate between the prokaryotes that appear fairly similar in spite of their tremendous biochemical diversity and genetic variability (Figure 1.18). The comparison of homologous DNA and RNA sequences provided Woese with a sensitive device that revealed the extensive variability of prokaryotes, and which justified the separation of the prokaryotes into two domains: bacteria and archaea. Q: In the past, biologists grouped living organisms into five kingdoms: animals, plants, fungi, protists, and what? A:
A:
output: bacteria

Answer the following question given this paragraph: Mineral crystals that form when magma cools are usually larger than crystals that form when lava cools. Q: Mineral crystals that form when magma cools are usually _______ than crystals that form when lava cools. A:

OPTIONS:
- older
- denser
- smaller
- larger

Answer: larger

Problem: OPTIONS:
- repetition
- variation
- cycle
- evolution
Q: Answer the following question given this paragraph: Q: What process consists of the mechanisms that produce an observed pattern of change? A:
Answer: evolution

Problem:OPTIONS:
- fallopian tubes
- cervix
- vagina
- ovary

Answer the following question given this paragraph: Ovulation, the release of an egg from the ovary, occurs at about the midpoint of the cycle. This would be around day 14 of a 28 day cycle. The egg is swept into the fallopian tube. If sperm is present, fertilization may occur. As sperm can only survive in the fallopian tube for up to a few days, fertilization can only occur within those few days post-ovulation. Q: Ovulation is the release of an egg from the what? A:
****
A: ovary

Problem:OPTIONS:
- tertiary succession
- primary succession
- tropical succession
- secondary succession

Answer the following question given this paragraph: Secondary succession occurs in a formerly inhabited area that was disturbed. Q: What occurs when a former inhabited area gets disturbed? A:
****
A:
secondary succession