Biology EOC Practice

Front

What are biotic factors in an ecosystem?

Back

Biotic factors are the living components of an ecosystem, such as plants, animals, bacteria, and fungi.

Front

What are abiotic factors in an ecosystem?

Back

Abiotic factors are the non-living components of an ecosystem, including water, soil, air, and temperature.

Front

What is the main difference between meiosis and mitosis?

Back

Meiosis produces gametes (egg and sperm cells) with half the number of chromosomes, while mitosis produces identical somatic cells.

Front

What type of cell does not have a nucleus?

Back

Bacteria are prokaryotic cells that do not have a nucleus.

Front

What defines a biome?

Back

A biome is a large geographical area characterized by specific climate conditions and ecological communities.

Front

What is osmosis?

Back

Osmosis is the passive transport of water molecules across a semipermeable membrane from an area of lower solute concentration to an area of higher solute concentration.

Front

What is the role of bacteria in ecosystems?

Back

Bacteria play essential roles in ecosystems, including decomposition, nutrient cycling, and as primary producers in some environments.

Front

What is primary productivity?

Back

Primary productivity is the rate at which energy is converted by photosynthetic and chemosynthetic autotrophs to organic substances.

Front

What is the difference between passive and active transport?

Back

Passive transport does not require energy and moves substances down their concentration gradient, while active transport requires energy to move substances against their concentration gradient.

Front

What are the main stages of meiosis?

Back

The main stages of meiosis are Meiosis I (reduction division) and Meiosis II (equational division), resulting in four haploid cells.