Answer: Option (d) is the correct answer.
Explanation:
When different kinds of living organisms tend to develop then this is known as evolution.
Evolution of a living being is diversified from earlier forms. Evolution might arise due to natural selection, genetic drifts, genesis etc. Therefore, it results in formation of genetic makeup of a living being.
Thus, we can conclude that a change in an individual's genetic makeup is defined as evolution.
Answer:
The answer is a change in a populations gene
Explanation:
Just got it right on edge2020
B. alveolus
C. urethra
D. nephron
Ans. (D). nephron.
Kidneys are bean-shaped organs of excretory system that make urine and help in elimination of wastes from the body. Nephrons can be defined as structural and functional units of kidneys, made up of renal tubes and renal capsules.
Process of filtration, re-absorption, and secretion take place in nephrons to filter blood, make urine and excrete waste products out from the body with urine.
Thus, the correct answer is option (D).
The functional unit of the kidney involved in the filtration, reabsorption, and excretion processes is called the nephron.
The functional unit of the kidney where blood is filtered, water and other dissolved substances are reabsorbed, and waste is sent out to be excreted is the nephron.
Each kidney in the human body contains about one million nephrons. The nephron is a tiny tubular structure composed of a renal corpuscle (which is the site for blood filtration), and a renal tubule (where reabsorption occurs). Waste from this filtration is then collected and departs the kidney through the ureter, to be excreted from the body as urine.
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Answer:
Equal number of chromosomes.
Explanation:
Mitosis may be defined as a type if cell division in which a single parent cells divides into daughter cells. This type of division occurs in the somatic cells of the organism.
Mitosis division is also known as equational division as the number off chromosomes remains equal in the daughter cells. The cells that contain four number of chromosomes, the daughter cells also contains the four number of chromosomes as mitosis is a type of equational division.
Thus, the answer is equal number of chromosomes.
Prokaryotes, eukaryotes, and viruses share similarities in containing genetic material and reproduction capacity. However, differences occur in genetic material structure, cellular structures, and functioning mechanisms.
The similarities between prokaryotes, eukaryotes and viruses essentially revolve around their basic biological functions. All three entities contain some form of genetic material (either DNA or RNA) which governs their basic life processes. They also have the capability to reproduce, although viruses require a host cell to accomplish this task. However, the structures of their genetic materials vary significantly. Prokaryotes and eukaryotes possess cellular structures necessary for functioning, but viruses largely lack these and are rather considered as non-living biological entities. Hence, they are comparable in their fundamental existence but differ vastly in their forms and functional mechanisms.
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Answer:
causes of food poisoning apart from bacteria include viruses, parasites and harmful chemical substance.
Explanation:
causes of food poisoning are
a) Viruses:These are very tiny germs made up of genetic material inside a protein coating
common virus that cause food poisoning is
norovirus and hepatitis A.
b). Bacteria:These are tiny organisms that can cause disease or infection. Bacteria that cause food poisoning include salmonella, Escherichia coli,and campylobacter.
c). Parasite are tiny organisms that live inside other organisms. Parasite can enter the body through food or water. Example of parasite that cause food poisoning is Gardia.
d) Harmful chemical: These maybe present in certain foods including fish, certain types of mushrooms and unwashed produce that contains large amount of certain pesticides
Answer:
The correct dating methods will be:
Explanation:
The primate fossils presented in the question above must be submitted to the dating processes known as radiopotassium and biostratigraphic so that the age of these fossils can be determined as accurately as possible.
Radiopotassium dating is based on the half-life of potassium, which is equal to 40 years. The term half-life refers to the number of years it takes for half the number of atoms of the radioactive isotope to be destroyed. Thus, radiopotassium dating measures the amount of potassium present in a fossil and relates this amount to the half-life of potassium, thus being able to calculate the age of the fossil.
Biostratigraphic dating, on the other hand, allows the age of a fossil to be determined by being compared with the age of another fossil and the physical and structural composition that these fossils have.
Therefore, to determine the age of primate fossils, radiopotassium dating would first be used in some fossils. These would be used as a model during biostratigraphic dating, allowing confirmation of the age of other fossils.