<span>A DNA nucleotide is composed of deoxyribose sugar, which is bonded to both a phosphate group and a nitrogenous base. They have the nitrogenous base bonded to their 1' carbon and a phosphate group to their 5' carbon. DNA stands for deoxyribonucleic acid, and you can see that it has deoxyribose, instead of ribose, in it from the name.</span>
A 1 mm³ of blood contains 4 - 6 million of erythrocytes or red blood cells, 5 - 10 thousand leukocytes or white blood cells, and 150 - 400 thousand of platelets. Using the lower approximates of the cells to total number of cells will be 4.155 million cells in 1 cubic mm.
Percentage of red blood cells will be 4/ 4.155 = 96.27 %
Percentage of white blood cells =0.005/4.155 = 0.12 %
Percentage of the platelets = 0.15/4.155 = 3.61%
Answer:
The correct answer is D. On the plasma membrane.
Explanation:
Prokaryotes do not have mitochondria to synthesize ATP but ATP synthesis takes place in prokaryotes on the plasma membrane as the plasma membrane contains the enzymes that are required for ATP synthesis.
The process of ATP synthesis is just like in the mitochondria. NADH helps in building the proton gradient in the outer portion of the membrane by the help of electron carriers embedded in the plasma membrane. Then these protons come back in the cytoplasm through ATP synthase enzyme complex.
This entry of protons helps in the generation of ATP from ADP and inorganic phosphate with the help of ATP synthase enzyme. Therefore the correct answer is D. On the plasma membrane.
What happens on Jane's elbow?
when a skin is scratched, the internal medium of the body enter directly in contact with the external environment, this could lead bacteria (saprophytic bacteria which lives on the skin, or bacteria from another source) it will provoke an inflammatory reaction to these pathogens and so, a pus will be formed (generally composed by dead neutrophils and purulent bacteria).
What happened on Sarah's knee?
The knee was just bruised, there's not skin scratching, it is still intact, so bacteria cannot go into the body through this injury. It just takes colors (red, blue, then yellow due to the rupture of capillaries which release blood, then will be degraded in bilirubin)
What is the species name of a frog that is between 1.5 and 6 inches long, has warts on its skin, and has a triangular mark between its eyes?
A.
Bufo boreas
B.
Acris crepitans
C.
Litoria caerulea
D.
Pseudacris crucifer
-->Acris Crepitans is the correct answer.
