Scientific Method
Characteristics of Life
Definitions
Life and Light
Random
100
What is the first step of the scientific method?

Observation

100

What are all living things made out of?

Cells

100

What is an organism?

anything that is living

100

What element is the basic building block of all life?

Carbon
100

Which part of the atom is the smallest?

Electron

200

What comes after the experiment in the scientific method?

Analyze data

200

What is the difference between sexual and asexual reproduction?

sexual - requires a mate and produces a genetically different offspring

asexual - does not require a mate and produces a clone

200

What are receptors?

special structures that allow an organism to sense its environment

200

The range of light that we can see is known as...

visible light

200

What is metabolism?

The way an organism breaks down food into energy
300

What are controlled variables?

variables that are kept constant throughout the entire experiment

300

Name 2 examples of a producer and 2 examples of a consumer.

Answers vary.

Producers - anything that makes its own energy from the sun

Consumers - anything that eats its food

300

What are enzymes?

special proteins that control chemical reactions in the cell

300

What are proteins made out of?

amino acids

300

What are the 4 types of biomolecules?

Proteins, nucleic acids, carbohydrates, lipids

400

What is a scientific theory?

a well-tested explanation that is widely accepted by scientists

400

What three things do ALL organisms need?

food (energy), water, habitat

400

What is homeostasis?

The ability of living things to maintain a stable, internal environment

400

On the electromagnetic spectrum, which waves have the shortest wavelength?

Gamma

400

Name 3 examples of nucleic acids.

DNA, RNA, ATP

500

Read the following experiment:

One plant is given sunlight every day. Another plant is not given any sunlight. After 3 weeks, we measure how tall the plant is.

What are the independent and dependent variables?

independent - sunlight

dependent - height of the plants

500
Name the different parts of the classification system that scientists use for organisms in order.

Kingdom - Phylum - Class - Order - Family - Genus - Species

500

What is taxonomy?

The process of classifying species

500

On the electromagnetic spectrum, how does wavelength relate to energy?

The shorter the wavelength, the more energy the wave has

500

What are the 2 functions of lipids?

cell membranes and storing energy