Semester Test Review #1 8th grade

Front

What type of observation is made when describing characteristics without using numbers?

Back

Qualitative Observation

Front

What are the twisted strands of DNA called?

Back

Chromosomes

Front

Are living things today related to plants and animals of the past?

Back

False

Front

What do we call the hardened remains of a living thing that died long ago?

Back

Fossil

Front

In an experiment, what needs to be constant when testing the effect of coffee on test scores?

Back

Same test

Front

What is the term for a characteristic that can be measured or counted?

Back

Quantitative Observation

Front

What are segments of DNA that determine specific traits called?

Back

Genes

Front

What is the process by which organisms change over time called?

Back

Evolution

Front

What do we call a species that no longer exists?

Back

Extinct

Front

What is the term for a species that is at risk of extinction?

Back

Endangered