How does the chemical make-up of blood change as it circulates through an organism? A- it becomes thicker

B- it changes color

C- it slows down and speeds up

D- it gains and loses oxygen and nutrients

E- it becomes thinner so it can squeeze through capillaries

Please, please help me! I need it ASAP

Type the correct answer in the box. use numerals instead of words. fiona has a lovely flower bed in her yard. she wants to add a fence along one side of the flower bed. the fence material is sold in meters. fiona knows that her flower bed is 200 centimeters in length. how much fencing material does fiona need in meters? fiona needs meters of fencing material for her flower bed.

As a small change in a person's dna can cause a genetic disorder

Which of the following words best matches this definition: the process in which the best adapted organisms survive and pass on their traits, while those that are not well adapted do not survive to pass on their traits. question 3 options: acquired selection natural selection artificial selection organic selection