Answer the following question given this paragraph: Ecology is the study of how living things interact with each other and with their environment. It is a major branch of biology, but has areas of overlap with geography, geology, climatology, and other sciences. The study of ecology begins with two fundamental concepts in ecology: the ecosystem and their organisms. Q: Ecology is a major branch of what higher-level "classification" of science? Choices: - chemistry - physics - geology - biology A:
biology
Answer the following question given this paragraph: Matter typically exists in one of three states: solid, liquid, or gas. The state of a given substance is a physical property. Some substances exist as gases at room temperature (such as oxygen and carbon dioxide), while others (like water and mercury metal) exist as liquids. Most metals exist as solids at room temperature. All substances can exist in any of these three states. Q: Most metals exist in which form at room temperature? Choices: - gases - liquids - oils - solids A:
solids
Q: Answer the following question given this paragraph: Q: What is the key issue in the small-population approach? Choices: - disease variation - genetic mutation - alternative variation - genetic variation A:
A: genetic variation
Question: Answer the following question given this paragraph: Competition is a relationship between organisms that strive for the same resources in the same place. The resources might be food, water, or space. There are two different types of competition:. Q: What is a relationship between organisms that strive for the same resources in the same place? Choices: - antagonistic - symbiotic - parasitic - competition A:
Answer: competition
*Question*
Answer the following question given this paragraph: Like roots, the stems of vascular plants are made of dermal, vascular, and ground tissues. Q: In vascular plants, what two basic structures are made of dermal, vascular, and ground tissues? Choices: - stems and flowers - roots and seed - fruits and nuts - roots and stems A:
**Answer**
roots and stems
Q: Answer the following question given this paragraph: Energy is the ability to change or move matter. All living things need energy. They need energy for everything they do, whether it is to move long distances or simply to carry out basic biochemical processes inside cells. Energy enters most ecosystems in the form of sunlight. In a few ecosystems, energy enters in the form of chemical compounds. All ecosystems need a constant input of energy in one of these two forms. Q: What is the ability to change or move matter? Choices: - volume - temperature - density - energy A:
A: energy