What is the approximate age of our solar system?

a. 4.6 trillion years

b. 4.6 billion years

c. 4.6 million years

d. 4,600 years

Which of the following would not cause a habitat change

I decided to exercise by running 5 miles. It took me 30 minutes. We can use this information to calculate my

What is a good way to show gravitational force to you classmates?

Select the three components of the atmosphere that absorb the heat radiated from the ground. water vapor oxygen carbon dioxide radiation clouds ozonosphere

In a sample of double stranded dna, 30% of the nitrogenous bases are thymine what is the percentage of the nitrogenous bases in the sample are adenime

Which is an example of a pure substance? A. air B. salad C. hydrogen D. sugar water

Why it might be important to be able to remove DNA from as organism?

Which part of the sphenoid bone houses the pituitary gland? which part of the sphenoid bone houses the pituitary gland? the lesser wings the "seat" of the sella turcica the cribriform plate the foramen ovale?

Leaves with carotenoid pigment turn during the fall.

the breakdown of food into molecules small enough to enter the bloodstream is primarily accomplished by the