Answer:
Origin of Viruses. ... Small viruses started as runaway pieces of nucleic acid that originally came from living cells such as bacteria. Large viruses were once parasitic cells inside bigger host cells. Over time, genes needed to survive and reproduce outside host cells were lost.
<span>Radioactive H will show up in the sugar, C6H12O6, and radioactive oxygen will show up in the O2 emitted to the air.</span>
Answer:
transform boundary between two ocean plates
Explanation:
transform boundary between two ocean plates
Answer:
strong, dense outer layer of a bone- compact bone
tissue in the hollow part of the bone- bone marrow
lightweight, inner layer of a bone that
contains many small spaces- spongy bone
Explanation:
Compact bone is also known as cortical bone and is a major property and source of skeletal frames in the body due to its strong, dense outer layer.
Bone marrow is the tissue in the hollow part of the bone. It is important as it helps in the production of blood cells
Spongy bone is also known as cancellous bone. It is the lightweight, inner layer of a bone that contains many small spaces which contains a high proportion of bone marrow.
<span>In simple terms, heavier plates get melted
in Mantle, become lighter in form of lava and create new plates. As we
have a re-cycle or the convection currents, there are cycles in
lithosphere.
There is continuous push and pull happening on and
below the Earth. When a plate is subducting on one end, there has to be
some reaction on the other end, right?
Ridge is developed on the
other side, where the same material which has been melted on the
subduction side helps to fill the gap at ridge side. Since the material
is just transfered from heavy to light, and reused in that cell, it is
called a cycle.
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