Answer;
B) four chromosomes
Explanation;
-Mitosis is a type of cell division that involves nuclear division in eukaryotic cells and occurs when a parent cell divides to produce two identical daughter cells.
-Mitotic cell division produces two daughter cells that are genetically identical to each other, and to the parental cell. Thus, a diploid cell, 2n, (contains two sets of chromosomes), yields two daughter cells that are also diploid.
-For example, in human beings, mitosis takes place in the somatic cells where a parent cell with 46 chromosomes produces two daughter cells each with 46 chromosomes.
Answer:
<em>- Galileo used a telescope to study the moons orbiting Jupiter. This showed that Earth was not the center of all things.</em>
<em>-Galileo discovered the phases of Venus, proving that at least one planet orbited the Sun.</em>
Explanation:
Galileo discovered evidence to support Copernicus’ heliocentric theory when he observed four moons in orbit around Jupiter. Beginning on January 7, 1610, he mapped nightly the position of the 4 “Medicean stars” (later renamed the Galilean moons). Over time Galileo deduced that the “stars” were in fact moons in orbit around Jupiter.
At about the same time, German mathematician Johannes Kepler was publishing a series of laws that describe the orbits of the planets around the Sun. Still in use today, the mathematical equations provided accurate predictions of the planets’ movement under Copernican theory. In 1687, Isaac Newton put the final nail in the coffin for the Aristotelian, geocentric view of the Universe. Building on Kepler’s laws, Newton explained why the planets moved as they did around the Sun and he gave the force that kept them in check a name: gravity.
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Answer:
Extinction is the natural process by which species die off.
Answer:
Adaptive immune responses are triggered by activation of antigen-specific T cells that produce antibodies against foreign antigens such as, for example, harmful viruses. These immune responses are useful to eliminate dangerous molecules from the body. In a normal immune reaction, the antibodies produced by T-cells target antigen molecules in order to be subsequently absorbed by phagocytic macrophage cells.
Autoimmune diseases are triggered by the response of the adaptive immune system against self-antigen molecules. Since the immune system can not eliminate antigens from the own body, this immune reaction generates an excessive inflammatory response, and it may lead to the damage of tissues and organs.
Answer:
false ig because animal cell is not complex(i am not sure)
