What do osmosis and diffusion have in common?
A.) Both permit molecules of any kind, whether solute or solvent, to cross the bilayer membrane.
B.) Both require the additional energy provided by an energy carrying molecule, like ATP, to allow molecules to pass through the membrane.
C.) Both processes occur through a semipermeable membrane called a concentration gradient.
D.) Both are the net movement of randomly moving molecules that makes concentration nearly equal on both sides of a bilayer membrane.

Answer:

C.) Both processes occur through a semipermeable membrane called a concentration gradient

Explanation:

A. They only let certain things in and out of the membrane

B. They are passive transportors, meaning they do not use ATP or energy

D. They do not randomly move molecules. The concentrations are not equal. It should be from a high concentration to a low concentration.

Which statement is not true of mitosis?

The statements are:

A There are four stages of mitosis

B It is the division of genetic material of a dividing eukaryotic cell into two parts

C it is a process that takes an average of eight minutes for any cell to complete the process

D each daughter cell receives a full set of chromosomes identical to the parent cell

Explain the connection between genes and your traits. Be sure to use the word protein.

Greek philosophers such as Democritus and Aristotle had ideas about the composition of matter. For example, Democritus believed matter was made of tiny, solid spheres that he called atomos, and Aristotle thought matter was made of earth, water, fire, and air. Aristotle's idea of matter was the accepted idea for over 2,000 years until John Dalton came up with a new theory about matter based on his experimental data. Which of the following best explains why Dalton’s theory became more widely-accepted over Aristotle's theory?


Aristotle’s theory did not have enough direct evidence due to poor observational tools.


Dalton’s theory had repeated observations which were supported by extensive evidence.


Dalton’s theory was more complete because more respected scientists found the ideas possible.


Aristotle’s theory became the law of conservation of mass when he documented phase changes of matter.

Dead ocean animals fall to the bottom of the ocean. A scientist notices rock layers that have formed on the ocean bottom with fossils of some of these animals. What type of rock is this?
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