For diffusion to occur, which condition must be met?

O A concentration gradient must exist,

O A hypotonic external environment is required,

A hypertonic external environment is required.

Dynamic equilibrium must exist.

ABCD is rectangle. BC = 45. Two circles are drawn inside ABCD such that the circles are tangent to each other. The circle with radius 10 is tangent to AB¯ and BC¯ , and the circle with radius 15 is tangent to AD¯ and CD¯ . Find AB.

The label on the cars antifreeze container clams to protect the car between - 40°C and 125°C. to convert Celsius temperature in Fahrenheit temperature, the formula is C=5/9 (F - 32).

There are two doorways into the Funhouse the doors are similar rectangles the tall door is 9 feet high and 5 feet wide the short door is 4 feet high how wide is the short door?

You deposit $800 into an account that earns simple annual interest. After 2 years. the account balance is $900. Find the annual interest rate.

What is |-14| a. - 14 b. - 7 c. 7 d. 14 e. 1/14

Write the simplest form of a rational number 177/413

Bottles of sparkling water usually cost $1.69 each. This week they are on sale for 4 for $5. You bought one last week and one this week. Did you pay more or less for the bottle this week? How much more or less? 10

A game has a length of 10 centimeters and a width of 5 centimeters. What is it's perimeter?

What is 10 times as great as 7962

What number is a factor of 15 but not a multiple of 3