Calculate pH a decrease of one unit on the pH scale means a solution is ten times more acidic. a decrease of two units means the solution is 100 times more acidic. how much more acidic is acid precipitation (pH = 4.0) than pure water (PH = 7.0)

Rain forest are home to many of the largest rain forest on earth? true or false

The amount of precipitation on a given day is an example of?

One way to classify organisms is by analyzing their genetic information to determine where they belong within a phylogenetic tree or cladogram.

Which question would be asked in a dichotomous key? A. How long are the insect's antennae? B. Are the insect's antennae longer than its head? C. Are the insect's antennae long or short? D. How does the insect use its antennae?

The maxillary bones and mandible are part of which structure? a. the facial bones b. the cranial bones c. the hyoid bone d. the spine

What algae is golden brown and one of the most common of all the unicellular organism in the ocean?

What is the name of the enzyme that adds new nucleotides to build mrna

If two people want to know the chances of their child have a certain genetic disorder, the parents must know their

Which of the following constitutes the primary structure of a protein? A. The folding of a polypeptide chain B. The linear sequence of amino acids in a polypeptide chair C. The polypeptide chains stacked on top of each other D. A pleated sheet E.

Most food chains have no more than six organisms. why is there a limit to the number of links in a food chain? a. animals at the end of the food chain would have too much food available. b.