Which type of protist is photosynthetic and unicellular with a silica shell?

A) euglena

B) green algae

C) diatoms

D) plasmodia

Sailboats move forward when they are pushed by the wind across the water. Which of the following would most likely indicate that air is moving a sailboat? A. a boat with a flat sail B. a boat with no sail C. a boat with a rounded sail

A recreational lake experiences eutrophication because of excess nutrients. Based on this information, how would the recreational lake most likely appear?

What are between Kingdoms and species?

What is thought to have caused the extinction of the dinosaurs? 1, Ice ages 2. Increase in oxygen 3. Asteroid that hit Earth 4. Rising sea levels

How does the Angle of insulation affect the amount of heat absorbed?

Special proteins produced by the body to attack foreign invaders such as pathogens are called:

In cellular respiration, the energy for most ATP synthesis is supplied by: A. High energy phosphate bonds in organic molecules B. A proton gradient across a membrane C. Converting oxygen to atp D.

Two factors which cause global climate change are listed below. factor 1: mountain building. factor 2: changes in the amount of atmospheric gases. which of these statements is correct about the two factors which cause global climate change?

Is a post oak tree is a autotrophic or heterotrophic

Which of the following statements about wetlands is true