Science Biology Topics Flashcards

Which part of the human digestive system absorbs most of the nutrients?

Answer: Small intestine

The small intestine is where most nutrient absorption occurs. Its inner walls have villi that increase the surface area for absorption.

What is an adaptation?

Answer: A feature that helps an organism survive in its environment

An adaptation is a physical feature or behaviour that helps an organism survive and reproduce in its specific environment.

Which of the following is an invertebrate?

Answer: Snail

A snail is an invertebrate — it does not have a backbone. Fish, frogs, and birds all have backbones (vertebrates).

What happens during germination?

Answer: A seed begins to grow into a new plant

Germination is the process where a seed absorbs water, swells, and starts to grow, eventually producing a root and shoot.

What is the function of red blood cells?

Answer: To carry oxygen around the body

Red blood cells contain haemoglobin, which binds to oxygen in the lungs and carries it to cells throughout the body.

Which of the following is NOT a way seeds can be dispersed?

Answer: By photosynthesis

Photosynthesis is the process of making food, not a method of seed dispersal. Seeds can be dispersed by wind, water, animals, or self-explosion.