Answer:
The fish did not yet exist when the old layers of rocks were deposited. In fact, animals with hard parts did not evolve until about 600 million years ago, which is only about 13% of the 4.5 billion year age of the Earth. Multicellular animals without hard parts left tracks in older sediments, but had no fossilize-able body parts.
Explanation:
The mitochondria is the powerhouse of the cell. on a serious note, The most prominent roles of mitochondria are to produce the energy currency of the cell through respiration, and to regulate cellular metabolism
Answer:
Here are the options to complete the question
A. Fenestrated capillaries
B. continuous capillaries
C. sinusoids
D. anastomoses
A. Fenestrated capillaries is our Sure ANSWER
Explanation:
Fenestrated capillaries (is located wherever active capillary absorption or filtration occurs)
The renal glomerulus - a network of capillaries - can be identified as fenestrated capillaries aiding the diffusion of small molecules and small amount of protein into the blood stream.
George is lifting weights. He starts by doing biceps curls
which involves flexing his
elbows. His elbow is able to bend
because the humero-ulnar joint is a hinge
joint. Sam is doing leg presses, extending his knees as he pushes
against the weights. Meanwhile, Jane is doing "lat pulls" by pulling
downward on a weighted bar. This movement involves adduction of her arms.
Her shoulder joint is a ball-and-socket joint, allowing
a wide range of movements.
<span>Proliferation of lymphocytes occurs immediately after activation, as well as the encounter of antigen. First, these antigen are bound, after which activation begins. Activation immediately leads to proliferation, as well as differentiation. Proliferation is an increase in the number of something, in this case, in the number of lymphocytes, or white blood cells. </span>
