Long bones are used primarily for movement rather than protection. A few examples of long bones are the humerus, tibia, and phalangeal bones.
The four principal types of bones are long, short, flat and irregular. Bones that are longer than they are wide are called long bones. They consist of a long shaft with two bulky ends or extremities. Osteoblasts are cells responsible for the secretion and deposition of bone morphogenetic proteins (BMPs) into the extracellular matrix during bone formation.
Appositional growth is the increase in the diameter of bones by the addition of bone tissue at the surface of bones. Bone remodeling involves the processes of bone deposition by osteoblasts and bone resorption by osteoclasts.
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Deoxynucleic acid, or DNA is the blueprint of the cell. it has instructions that are needed for the organism to grow, develop, survive and reproduce.
Answer:
The Answer is likely D, none of the above because all of these would cause damage in any area, however, climate change is what deals the most damage to tropics due to the fact that the already hot tropical climate is getting even hotter, which can cause rivers and what not to dry out, whereas though climate change is a big problem around the world, it is least apparent in the southern hemisphere, and not nearly as apparent in the northern hemisphere when you compare it to research in the equatorial region.
(Please note that this answer is more of a matter of my own opinion than anything, and under most circumstances, none of the above would be wrong. Please do not hold it against me if this answer is wrong. If it is wrong, then the answer would probably be A)
Here are 3 principles! Hope this helps!!
1 all living organisms are compound by one or more cells
2 the cell is the structure and functional basic unit of life.
3 all cells originated from other cells
Apparent magnitude : How bright a star appears to be
Absolute magnitude : How bright the star actually is
I think the answer is : A. close to earth
The stars only seems to be bright because its radiated from a close distance
hope this helps