7th Grade Science

A tool that uses light and lenses to enlarge an image of an object:

A person who studies plants and animals by observing them:

A form of reproduction in which one parent organism produces offspring without meiosis:

An embryo, its food supply, and a protective covering:

Describes a living thing that is made of only one cell:

What do we call all the populations of different species that live together in the same area at the same time?

The process by which populations of organisms with variations live longer, compete better, ...:

Forms from the tissue in the male reproductive structure of a seed plant:

The living things in an ecosystem:

What is needed for photosynthesis:

A form of asexual reproduction that occurs when a new organism grows on the body of its parent:

The impression of an organism in a rock:

What is a series of chemical reactions that convert light energy, water, and carbon dioxide into glucose and oxygen?

When the last individual organism of a species dies:

A group of tissues working together to perform a particular job:

The male reproductive organ of a flower:

A group of organs that work together to complete a series of tasks:

Describes a living thing that is made of two or more cells:

A change in an organism's environment that causes a response:

The smallest unit of life:

What is a model of energy transfer that scientists use to show how food chains in a community are interconnected?

A thing that has all the characteristics of life:

The female reproductive structure of a seed plant where the haploid egg develops:

A slight difference in the appearance of individual members of a species:

An unspecified cell that is able to develop into many different cell types:

An adaptation that enables species to blend in with their environments:

What is a model that shows how energy flows in an ecosystem through feeding relationships?

A form of asexual reproduction in which offspring grow from a part of a parent plant:

The preserved evidence of the activity of an organism:

All the living things and nonliving things in a given area:

A chart that divides Earth's history into different time units:

What is a model that scientists use to show the amount of energy available in each step of a food chain?

The change over time in populations of related organisms:

The ovary, and sometimes other flower parts, that contains one or more seeds:

A response that results in plant growth toward or away from a stimulus:

An organism's genetic material:

A fossil copy of an organism in a rock:

Cell division in prokaryotes that forms two genetically identical cells:

A structure at the base of the style that contains one or more ovules:

A membrane-surrounded component of a cell that has specialized functions:

A type of asexual reproduction performed in a lab that produces identical individuals

Describes the average weather conditions in an area over time:

The breeding of organisms for desired characteristics:

Occurs when pollen grains land on a female reproductive structure of a plant:

What are all the organisms of the same species that live in the same area at the same time?

The process by which cells become different types of cells:

The nonliving things in an ecosystem, such as sunlight and water:

Which is not included in the cell theory:

All the fossils ever discovered on Earth:

The female reproductive organ of a flower:

What are the products of photosynthesis:

A group of similar types of cells that work together to carry out specific tasks:

A type of nucleic acid that carries the code for making proteins from nucleus to the cytoplasm:

A form of asexual reproduction that occurs when an offspring grows from a piece of its parent:

An organism's ability to maintain steady internal conditions when outside conditions change:

A type of reproduction in which the genetic materials from two different cells combine:

A characteristic of a species that enables the species to survive in its environment: