All animals have a system for exchanging carbon dioxide and oxygen with their surroundings. What do all of these systems have in common?
A. All involve the active transport of gases across membranes.
B. All include airways, such as the trachea, that carry air to the mouth.
C. All involve gas diffusion across moist, selectively permeable membranes.
D. All involve organs or tissues that are dedicated to gas exchange and fulfill no other functions.
Answers: 1
Biology, 21.06.2019 23:10, Demarcusclincy
Glucose is a form of sugar found in the blood cells use glucose as a source of energy, but too much or too little can cause serious health issues so, the body uses the hormone insulin to regulate glucose n the blood insulin maintain glucose levels in the blood if blood glucose lovels got very high, what would you expect to see happen to insulin levels?
Answers: 2
Biology, 22.06.2019 09:00, avahrider1
Were you able to observe the nucleolus in any of the cells if so which ones
Answers: 3
Biology, 22.06.2019 12:00, whocares1234
Label the steps for protein synthesis in order, beginning with the first steponce the protein is made, the gene for a particular trait is expressedmrna joins the ribosome, and the anticodons from trna join mrna to form a chain ofamino acidsrna polymerase unzips dna and free rna nucleotides join dna to form mrnav a chain of amino acids is formed from peptide bonds, creating a proteinmrna is transported from the nucleus of the cell to the ribosomes of the cell.
Answers: 1
All animals have a system for exchanging carbon dioxide and oxygen with their surroundings. What do...
Biology, 31.07.2019 10:30
Chemistry, 31.07.2019 10:30
Mathematics, 31.07.2019 10:30
World Languages, 31.07.2019 10:30