Controls body functions and helps maintain homeostasis by using hormones.

Protects internal organs, provides support, allows movement, stores minerals, and produces red blood cells.

Collects fluids that leak from the blood and then returns them to the bloodstream.

Takes in oxygen and removes carbon dioxide.

Carries oxygen, nutrients, and hormones to all parts of the body and removes cellular wastes.

Pumps blood through the body, enables you to breathe, holds you upright, and allows movement.

Eliminates cellular wastes from the body through the lungs, skin, and kidneys.

The protective covering of the body acts as a barrier that protects the body from infection.

Controls the actions and reactions of the body in response to internal and external stimuli.

Bones, cartilage, and ligaments

Mouth, esophagus, stomach, small intestine, large intestine

Nose, pharynx, larynx, trachea, lungs, diaphragm.

Lymph nodes, lymph vessels, thymus, spleen, tonsils.

Heart, blood, blood vessels.

Ovaries, testes

Thyroid, adrenal glands, thymus, ovaries, testes, pancreas

Brain, spinal cord, neurons

Skin, hair, nails

Name this system.

Name this system.

Name this system.

Name this system.

Name this system.

Name this system.

Name this system.

Name this system.

Name this system.

What is the main function of xylem in a plant?

Which plant tissue is responsible for the transport of sugars and carbohydrates?

What is the process by which plants maintain a stable internal environment?

What are the small openings on the surface of leaves called?

What is the role of guard cells in plants?

Which process involves the movement of water across a semi-permeable membrane from an area of high concentration to an area of low concentration?

What is the outermost layer of cells on a plant called?

What is the waxy layer that covers the epidermis of a plant leaf called?

Which pigment is responsible for capturing sunlight during photosynthesis?

What is the primary product of photosynthesis in plants?

What are the substances that plants obtain from the soil for growth and development called?

Which of the following is NOT a plant structure responsible for water transport?

The exchange of gases in plants occurs primarily through which structure?

What is the function of the cuticle on a plant leaf?

Which of the following is a primary component involved in photosynthesis?

What is the main source of energy for plants?

What is the process by which plants convert light energy into chemical energy?

The growth (or response) of a plant towards or away from light.

In plant cells, the force exerted by the flow of water within the cell pushes the plasma membrane against the cell wall. This force gives plants structure and helps them stand up and not wilt.

Any change in an organism’s environment that causes the organism to react. Example: The Sun is an example of this for a plant demonstrating phototropism.

The plant organelle that uses light energy to produce food from water and carbon dioxide in a process known as photosynthesis.

Which Texas ecoregion would most likely show the most evidence of erosion by water?

This Texas ecoregion experiences little erosion due to its rich soil and abundant vegetation, where trees are the main plant life.

Erosion can have which of the following effects in Texas?

The landscape of the Texas Prairies has changed because of _____.

The Gulf Coast Prairies and Marshes are often exposed to tropical storms originating in the Gulf of Mexico. Which of the following are effects on the coastline?

In woodlands, erosion by runoff is minimal because ______.

Only 1 percent of tall grass remains in the Texas Prairies ecoregion. What can humans do to prevent erosion?

Identify the similarity among these three ecoregions: Prairies, Plains, and Woodlands.

In the Woodlands, erosion by runoff is minimal. What is a positive result of this?

Identify the similarity among these three ecoregions: Gulf Coast Prairies & Marshes, Plains, and Plateau & Desert/Montane.

All human development _____ the rate of erosion on land.

What is the correct order of this food chain?

Which of these organisms is a secondary consumer?

Which of these organisms is a producer?

What do herbivores eat?

Arrange the levels of environment in the correct order.

What is the hawk in the food web?

Biotic factors are

Abiotic factors are

Water is an example of:

A biotic factor that limits the size of a population would be:

For what are the wildcat and the fox competing?

All of the organisms of the same species in an area are defined as:

Choose all the organisms that rely on grains as a food source.

Select all the abiotic factors listed below.

Do the owl and the bird compete for resources?

Select all the biotic factors listed below.

Which color of grasshopper has a decreasing population?

What do bacteria use as a food source?

All the living and non-living factors that interact in an area.

What is an invasive species?

Invasive species alter the ecosystem by _____ in number quickly. This leads to _____ food for the native species.

TRUE or FALSE? Invasive species grow quickly due to the lack of predators, which leads to a decline or extinction of the native population.

Which of these words does NOT describe an invasive species?

The primary cause of the introduction of invasive species is ---

Click on the map to help answer this question. What can we predict about the population of feral swine for the year 2016?