Q: Q: What is the term for the most abundant species in a community, characterized by high competitive abilities? Read this paragraph and choose the correct option from the provided answers: Choices: - keystone species - merging species - carnivores - dominant species A:
A: dominant species

Q: Q: Photoautotrophs use what energy source to self-manufacture their own food? Read this paragraph and choose the correct option from the provided answers: every organism uses to power its metabolism. In brief, the energy of sunlight is captured and used to energize electrons, which are then stored in the covalent bonds of sugar molecules. How long lasting and stable are those covalent bonds? The energy extracted today by the burning of coal and petroleum products represents sunlight energy captured and stored by photosynthesis almost 200 million years ago. Plants, algae, and a group of bacteria called cyanobacteria are the only organisms capable of performing photosynthesis (Figure 8.2). Because they use light to manufacture their own food, they are called photoautotrophs (literally, "self-feeders using light"). Other organisms, such as animals, fungi, and most other bacteria, are termed heterotrophs ("other feeders"), because they must rely on the sugars produced by photosynthetic organisms for their energy needs. A third very interesting group of bacteria synthesize sugars, not by using sunlight's energy, but by extracting energy from inorganic chemical compounds; hence, they are referred to as chemoautotrophs. Choices: - water - chlorophyll - air - light A:
A: light

Q: Q: What takes place directly after developing a hypothesis in the scientific method process? Read this paragraph and choose the correct option from the provided answers: Scientific method is a process consisting of making observations, developing a hypothesis, and testing that hypothesis. Choices: - gathering materials - making a conclusion - independent variables - testing the hypothesis A:
A: testing the hypothesis

Q: Q: What kind of charge does a proton have? Read this paragraph and choose the correct option from the provided answers: Electric charge is a physical property of particles or objects that causes them to attract or repel each other without touching. All electric charge is based on the protons and electrons in atoms. A proton has a positive electric charge, and an electron has a negative electric charge (see Figure below ). Choices: - ionic - constant - negative - positive A:
A: positive