Ch. 1 - Science of Biology

Question 1

What are the characteristics of living things?

Answer 1

Living things _____
1) are made up of units called cells
2) reproduce
3) are based on a universal genetic code
4) grow and develop
5) obtain and use materials and energy
6) respond to their environment
7) maintain a stable internal environment

Question 2

What is the biosphere?

Answer 2

The part of Earth that contains all ecosystems

Question 3

What is the ecosystem?

Answer 3

Community and its nonliving surroundings

Question 4

What is a population vs. a community?

Answer 4

Population: group of organisms of one type that live in the same area (for ex, a group of bison living on the same field)

Community: multiple different populations that live together in a defined area (hawks, snakes, bison, and grass located in one area)

Question 5

What is the smallest functional unit of life?

Answer 5

cell

Question 6

What is the difference between light microscopes and electron microscopes?

Answer 6

Light microscopes produce magnified images by focusing visible light rays

Electron microscopes produce magnified images by focusing beams of electrons