Answer:
Explanation:
Macroevolution studies how taxonomic groups above the level of species change. Its evidence draws frequently from the fossil record and DNA comparisons to reconstruct how various organisms may be related
(a) The serum is the plasma without <u>clotting</u> factors.
(b) Phagocytic cells are <u>neutrophills</u> and monocytes.
(c) Eosinophils are linked with <u>allergic</u> reactions.
(d) In clotting, <u>calcium</u> ions play an important role.
(e) In an ECG, one can determine the heartbeat rate by counting the number of <u>QRS complex</u>.
<h3>EXPLANATION:</h3>
»» Blood without blood corpuscles is called plasma and plasma without clotting factors is called serum.
»» The professional phagocytes include many types of white blood cells (such as neutrophils, monocytes, macrophages, mast cells, and dendritic cells).
»» Eosinophils are associated with allergic reactions.
»» Calcium ions play a significant role in clotting.
»» When the cardiac rhythm is regular, the heart rate can be determined by the interval between two successive QRS complexes.
Answer:
This question lacks options, the options are:
a) Negative primary production
b) Net primary production
c) Secondary production
d) Negative secondary production
e) Positive primary production
The correct answer is b.
The total amount of chemical energy produced by autotrophs, such as plants and phytoplankton, is called gross primary production. The energy that remains after plants use some of the gross primary production to fuel their own metabolism is known as <u>net primary production</u>.
Explanation:
Net Primary Production (NPP) is the value that results from the difference between gross production and respiration of the primary producers themselves. It manifests as growth and / or reproduction. It represents the matter and energy available for the next trophic level, that is, the net primary production is what is left after subtracting the energy that plants use for their metabolism or maintenance (such as breathing, tissue construction and reproduction).
Response would be correct, as in response to environment.
<span>In a neuron, the opening of sodium gates typically leads to open and allows the exit of sodium ions out the cell. The neuron that contains for why myelinated fibers conduct signals faster than unmyelinated fbers are the d</span>iffusion of ions along the axoplasm is faster. At the same time, a traveling wave of excitation is <span>a nerve signal.</span>
