7th Grade Science Review

Microbiome

1

This term refers to all of the microorganisms that live in a particular environment, such as a human body.

Microbiome

1

Even though both of these structures are microscopic, this specific unit of living things is much larger than a molecule.

Cell

1

This type of medicine reduces the total amount of bacteria in a microbiome by killing both the helpful and harmful types.

Antibiotic

1

Living things with fewer than normal helpful bacteria can become infected more easily because of which environmental factor?

Because there is more food and space available

1

According to the unit's key concepts, what does a healthy human microbiome specifically require?

Various types of bacteria

Metabolism

1

This term refers to the body's overall process of using food and oxygen molecules for energy and growth.

Metabolism

1

This simple sugar molecule is produced when the digestive system breaks down carbohydrates, serving as a primary fuel source for cells.

Glucose

1

These molecules are produced when the digestive system breaks down proteins, and cells use them as building blocks to grow and repair tissues.

Amino Acids

1

This organ system takes in oxygen from the air and expels carbon dioxide waste when cells break down energy molecules.

Respiratory System

1

This body system is responsible for moving oxygen, glucose, and amino acids through blood vessels to every cell in the body.

Circulatory System

Traits and Reproduction

1

This term describes a specific characteristic of an individual organism, such as having blue eyes.

Trait

1

This biological unit acts as a direct instruction for making a protein molecule.

Gene

1

This term applies when an organism has two copies of a gene that are different versions, providing instructions for two different types of proteins.

Heterozygous

1

If you change the __________ of a protein will change its function (job), how it connects, and what traits are made.

Structure

1

This type of reproduction utilizes two parents to pass on genes, consistently resulting in offspring with unique gene combinations.

Sexual Reproduction

Ecology 1 (Moon Jellies)

1

This is a group of the same type of organism living in the same area.

Population

1

In a food web, the arrows show the direction that ________ moves throughout an ecosystem.

Energy

1

This term describes a population that is eaten by organisms from another population.

Resource Population

1

This type of interaction happens when two or more populations use the same resource, such as the same food source.

Competition

1

This is the term for a chain reaction where one cause leads to an effect, which then goes on to cause one or more other effects.

Indirect Effect

Ecology 2 (Biodome)

1

This is matter that makes up the nonliving parts of an ecosystem, such as air, water, and rocks.

Abiotic Matter

1

During this process, producers use energy from sunlight to change carbon dioxide and water into oxygen and glucose.

Photosynthesis

1

During this biological process, carbon dioxide is produced from carbon energy storage molecules, moving carbon from biotic to abiotic matter.

Cellular Respiration

1

Since it cannot be produced or used up, the total amount of this element in a closed system does not change.

Carbon

1

If there is less of ____________ available in the environment, producers will make fewer energy storage molecules.

Sunlight

Natural Selection

1

This is a random change to a gene that sometimes results in a new trait.

Mutation

1

This term describes something in the environment that affects an individual's chances of surviving.

Selection Pressure

1

Whether or not a trait is considered this depends entirely on the environment.

Adaptive

1

These act as instructions for making protein molecules, which then determine an organism's traits.

Genes

1

Individuals with adaptive traits are more likely to live longer and _________ compared to those with non-adaptive traits.

Reproduce

Evolutionary History

1

This is a scientist who studies fossils in order to understand the ancient history of life on Earth.

Paleontologist 

1

These are body parts in different animals that have different internal structures, but perform a similar function.

Analogous Structures

1

This term describes an older population from which two or more newer species descended.

Common Ancestor Population

1

This is what must happen for a species to survive if its environment changes.

Adapt

1

This process takes a very long time, where tiny changes over thousands of generations eventually add up to huge differences.

Evolution