Problem: OPTIONS:
- ions
- nitrogen groups
- oxygen groups
- carbon groups
Q: Answer the following question given this paragraph: Note The carbonyl group is ubiquitous in biological compounds. It is found in carbohydrates, fats, proteins, nucleic acids, hormones, and vitaminsorganic compounds critical to living systems. In a ketone, two carbon groups are attached to the carbonyl carbon atom. The following general formulas, in which R represents an alkyl group and Ar stands for an aryl group, represent ketones. Q: In a ketone, two of which kind of groups are attached to the carbonyl carbon atom? A:
Answer: carbon groups

Problem:OPTIONS:
- hymenium
- dikaryotic
- hyphae
- sporangium

Answer the following question given this paragraph: A general plant life cycle is represented by the diagram in Figure below . From the figure, you can see that the diploid sporophyte has a structure called a sporangium (plural, sporangia) that undergoes meiosis to form haploid spores. A spore develops into a haploid gametophyte. The gametophyte has male or female reproductive organs that undergo mitosis to form haploid gametes (sperm or eggs). Fertilization of gametes produces a diploid zygote. The zygote grows and develops into a mature sporophyte, and the cycle repeats. Q: What is the structure in a diploid sporophyte that undergoes meiosis to form haploid spores? A:
****
A: sporangium

Answer the following question given this paragraph: Aquatic biomes are water-based biomes. They include both freshwater biomes, such as rivers and lakes, and marine biomes, which are salt-water biomes in the ocean. The primary producers in most aquatic biomes are phytoplankton. Phytoplankton consist of microscopic bacteria and tiny algae that make food by photosynthesis. Unlike terrestrial biomes, which are determined mainly by temperature and moisture, aquatic biomes are determined mainly by sunlight and dissolved substances in the water. These factors, in turn, depend mainly on depth of water and distance from shore. Q: Salt-water biomes in the ocean are called what? A:
OPTIONS:
- marine organelles
- marine species
- ocean biomes
- marine biomes
marine biomes

Answer the following question given this paragraph: The plasma membrane may have extensions, such as whip-like flagella or brush-like cilia . In single-celled organisms, like those shown in Figure below , the membrane extensions may help the organisms move. In multicellular organisms, the extensions have other functions. For example, the cilia on human lung cells sweep foreign particles and mucus toward the mouth and nose. Q: In single-celled organisms, what does the plasma membrane extensions help the organisms to do? A:
OPTIONS:
- increase
- inspect
- prevent
- move

Answer: move

Question: Answer the following question given this paragraph: The instantaneous velocity of an object is the velocity of the object at a given moment. If the object is moving with constant velocity, then the instantaneous velocity at every moment, the average velocity, and the constant velocity are all the same. Q: What is defined as the velocity of the object at a given moment? A:
OPTIONS:
- specific gravity
- relativistic velocity
- inertia
- instantaneous velocity
Answer: instantaneous velocity

input: OPTIONS:
- formation extinction
- organic extinction
- species extinction
- mass extinction Now, answer this question: Answer the following question given this paragraph: Sometimes large numbers of species go extinct in a short amount of time. This is a mass extinction . The causes of different mass extinctions are different: collisions with comets or asteroids, massive volcanic eruptions, or rapidly changing climate are all possible causes of some of these disasters ( Figure below ). Q: What term is used to describe large numbers of species that go extinct in a short amount of time? A:
A:
output:
mass extinction