Answer: The correct answer is option (A) it produces molecules of ATP.
Explanation: The main role of the electron transport chain in cellular respiration is that it produces ATP molecules. Adenine tri phosphate (ATP) is a molecule of energy which is produced during oxidation reduction reaction. This energy is used in most of the chemical reaction that is occur inside the cell.
A phylogenetic tree is the representation of the evolutionary relationships among species. The fossil records are used as evidence to develop a phylogenetic tree. Thus, option A is correct.
<h3>What is a fossil record?</h3>
A fossil record is a depiction of the organisms that shared common ancestors and depicts the change in the structural and functional unit of the organism over many years of time.
They are used to illustrate the phylogenetic tree to show the morphological, structural, chemical, anatomical, etc variations in species that shared ancestry.
Therefore, option A. fossil records are used to show the common ancestry at the nodes.
Learn more about fossil records here:
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Exposure to antigen as this input brings the total to five answers. y or n
Answer:
False
Explanation:
the offspring would be 100% heterozygous
Answer:
The stratosphere
contains the ozone layer
,
is used by airplanes,
has strong, steady winds
, and
increases in temperature as altitude increases
.
Explanation:
The stratosphere is the atmospheric layer between 10 km and 50 km above the Earth's surface.
It includes the ozone layer, which is at an altitude of about 20 km.
It has strong, steady winds that can reach as high as 220 km/h.
Passenger aircraft generally fly in the lower levels of the stratosphere, at altitudes of about 10 km to 12 km.
Temperatures increase with altitude, from -50 °C at 10 km to -3 °C at 50 km.
A is wrong. The mesosphere (altitude 50 km to 85 km) is the coldest of the atmospheric layers, with temperatures as low as -90 °C at 85 km.
