Levels
cells group together to form...
tissues
This body system helps break down food into nurtients
Digestive System
How many parents for sexual reproduction?
What is 2?
Made up of two or more elements.
What is a compound?
Correct order for the first four planets in the Solar System, starting with the planet closest to the sun?
Mercury, Venus, Earth, and Mars?
What is natural selection?
Summarized as “survival of the fittest”, where “fittest” means best suited to the environment—not necessarily strongest.
organs
This body system includes the skull and ribcage. It provides the body with structure, support, and protects organs such as the brain and lungs.
Skeletal System
How many parents for asexual reproduction?
What is 1?
What is velocity?
Speed with direction?
When tectonic plates move apart from each other?
What are divergent boundaries?
Polar bear’s white fur → blends into snow (camouflage) is an example of
Adaptation
Several organs working together to complete a big job for an organism form a
Organ System
This body system includes the lungs, trachea, and bronchi. It takes in oxygen and releases carbon dioxide.
The respiratory system
Humans – sperm + egg → baby
What is sexual reproduction
Average speed =
Distance/Time?
An object tendency to resist motion
Inertia?
What is a trait?
characteristic or feature of a living thing.
Many organ systems working together form a complete, living ___________.
organism
This body system includes the heart, veins, and blood vessels. It transports materials throughout the body
Circulatory System
flowers use pollination (often by bees) to reproduce
What is sexual reproduction?
Made up of many cells!
What is tissue?
Types of surface waters? Name at least 3.
Lakes, ponds, rivers, streams, wetlands, oceans and seas?
What is artificial selection
is when humans choose which plants or animals reproduce to get traits they want.
List the levels of organization from smallest to largest
Cells, tissues, organs, organ systems, organism
This body system sends and receives signals throughout the body, controlling all body functions.
Bacteria split into two identical cells
What is asexual reproduction?
Name the two organs of your nervous system.
Brain and spinal cord?
A pure substance.
What is an element?
What is adaptation?
is a helpful characteristic that increases an organism’s chances of living long enough to have offspring.