Question 20 of 32 Which of the following is an example of a biological system?
A. A science fair project modeling the process of breathing in the
human body
B. The heart, lungs, and blood vessels working together to carry
oxygen throughout the body
C. The Internet
D. A biology textbook
SUBMIT

answer: although many types of viruses can cause a common cold, rhinoviruses are the most common culprit. a cold virus enters your body through your mouth, eyes or nose. the virus can spread through droplets in the air when someone who is sick coughs, sneezes or talks. theres your answer

explanation:

not sure if this is what you'r looking for nnew= nold

i believe it is c: genes for body color and wing size are inherited separately from each parent.

phaneritic textures in which phaner means visible so phaneritic textures are standard of impertinent volcanic rocks. these rocks crystallized gradually under the surface of earth. when the magma cools deliberately then the ores have chance to develop and produce long crystals.