What is meant by the term ecological niche? Describe the ecological niche of humans and of three other species.

Which of the following is NOT a known side-effect of alcohol on hormonal balance? Estrogen-androgen imbalance in males Reduction of fertility in women Early menopause in women

the graph shows the gravitational force and distance two asteroids of equal mass (10 million kilograms). when the distance between the asteroids is 9,000 kilometers, the gravitational force between item is about 82 newtons (N).

A rock that forms from cooling lava is classified

What type of front forms when the surface position of the front does not move? stationary cold warm occluded

What are the four types of multicellular organisms?

What are some examples and non examples of chemical bonding?

Match the staining techniques with their purpose. A Negative stain such as India ink or Congo red. B The Gram stain C The Ziehl-Neelsen Acid-fast stain D Simple stain with a basic dye E The Schaeffer-Fulton Endospore stain Stain microbes a bright

Sandy puts a paper clip on the table and puts a magnet near the paper clip. The paper clip begins to move. What type of forces are acting on the paper clip?

Which statement is an example of absolute age? 1) Dinosaurs lived a long time ago 2) Trilobites lives before dinosaurs 3) Teachers are old 4) Dinosaurs went extinct 65.5 million years ago

Identify the structure in the cell that will produce atp from the starch building blocks