Science 7 Final Exam Study Guide

What is a carnivore?

• Eats plants only.

• Eats animals only.

• Eats both plants and animals.

• Eats insects only.

Who was Darwin?

• A famous artist known for his paintings.

• A scientist who developed the theory of natural selection.

• A politician who led a revolution.

• An author known for his novels.

What is an ecosystem?

• A collection of living organisms only.

• Community plus abiotic factors.

• A random assortment of plants and animals.

• A geographical area with no living organisms.

What is natural selection?

• The process where organisms better adapted to their environment tend to survive and produce more offspring.

• A method of breeding plants and animals for desired traits.

• The theory that all species evolve from a common ancestor over time.

• A technique used in genetic engineering to modify organisms.

What is binomial nomenclature?

• A system of naming organisms using three parts: genus, species, and variety.

• The two-part scientific naming system (genus and species).

• A method for classifying organisms based on their habitat.

• A technique for determining the age of fossils.

What is a biotic factor?

• Non-living components of an ecosystem (rocks, water).

• Living components of an ecosystem (plants, animals).

• Physical conditions affecting an ecosystem (temperature, light).

• Human-made elements in an ecosystem (buildings, roads).

What is a dichotomous key?

• A tool used to identify organisms through a series of choices based on characteristics.

• A method for classifying plants based on their height.

• A chart that shows the evolutionary relationships between species.

• A software program for analyzing genetic data.

Why are the Galápagos Islands important for evolution?

• They are a key location where Darwin observed variations in species that helped form his theory.

• They are known for their unique volcanic formations and landscapes.

• They are the only place where giant tortoises can be found.

• They serve as a major tourist destination for wildlife enthusiasts.

Describe an example of kin selection.

• Alarm calls in meerkats that help relatives survive and reproduce.

• Predatory behaviors that increase individual survival.

• Territorial displays that attract mates.

• Foraging strategies that maximize food intake.

Define an ecological community.

• A group of organisms that can interbreed.

• All populations living together in an area.

• A specific type of habitat for wildlife.

• The physical environment where organisms live.