SOL Review 2 (1-120 are cont.)

Front

What type of symmetry do corals have?

Back

Radial symmetry is a type of symmetry where body parts are arranged around a central axis, allowing for multiple planes of symmetry.

Front

What is the typical energy transfer percentage from one trophic level to the next in an ecosystem?

Back

Typically, only about 10% of energy is transferred from one trophic level to the next, as energy is lost through metabolic processes.

Front

How many chromosomes does a normal human being have in total?

Back

A normal human being has 46 chromosomes, arranged in 23 pairs.

Front

What is osmosis?

Back

Osmosis is the process by which water moves across a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration.

Front

What does an enzyme act on directly?

Back

An enzyme acts directly on substrates, which are the reactants in a chemical reaction.

Front

Define radial symmetry.

Back

Radial symmetry is a form of symmetry where the body can be divided into similar halves by multiple planes passing through a central axis.

Front

What is the role of enzymes in biological reactions?

Back

Enzymes act as catalysts to speed up chemical reactions without being consumed in the process.

Front

Explain the concept of trophic levels in an ecosystem.

Back

Trophic levels represent the hierarchical levels in an ecosystem, where each level consists of organisms that share the same function in the food chain.

Front

What is the difference between diffusion and osmosis?

Back

Diffusion is the movement of particles from an area of higher concentration to an area of lower concentration, while osmosis specifically refers to the movement of water across a membrane.

Front

What are chromosomes?

Back

Chromosomes are long strands of DNA that contain genetic information; humans typically have 46 chromosomes.