The Genetic Variation, Mutagens produce the greatest variety. This category includes radiation (UV light, Xrays), chemical, etc. <span>They change DNA/RNA, thereby increasing the number of mutations, which in turn, leads to producing the greatest variety.</span>
Severe burns can destroy muscle tissue and damage the kidneys
Kingdom Monera was the oldest kingdom of living organisms. The organisms in the kingdom were simple, single celled and their cellular organelles were not covered by membranes. Prokaryotic bacteria were the first known Monerans. However, scientists think that Monerans were evolved into more complex eukaryotic organisms (Protists) with the passage of time.
But how did Monera (Prokaryotes) was evolved into Protista (Eukaryotes)?
Protista are eukaryotes, unicellular or simple multicellular organisms.Many theories were proposed for this evolution, but one that makes most sense was endosymbiotic theory. According to this, the first eukaryotic cells were evolved when two prokaryotic cells existed in an endo-symbiotic relationship. Larger prokaryotic cells engulfed smaller prokaryotic cells. The smaller cells got shelter and nutrients from larger cells and both co-existed in a mutualistic relationship. Both cells eventually evolved into organelles and got never aparted. This is how more complex organisms’ protists were evolved from simple monerans. It was a gradual process and took millions of years.
The earliest fungi were single-celled organisms that contain a flagella to move from one place to another. Recent studies indicate that fungi belong to a group of organisms which were evolved from protists over the course of time. These studies are based on the nucleotide sequence of fungi that matches to a large extent with old protists. It is estimates that fungi evolved 600 million years or even before.
Answer:
The correct option is D
Explanation:
A male sperm needs a x chromosome and y chromosome , whereas a female sperm needs 2 x chromosomes , Thus both genders needing x chromosome
Answer:
The options
a.) neutrophils
b.) lymphocytes
c.) basophils
d.) monocytes
The CORRECT ANSWER IS a.)
a.) neutrophils
Explanation:
Neutrophils are grouped as granulocytes (they possesses clearly seen cytoplasmic granules). It functions as the body's bacteria killers, and their numbers rises at a swift rate in times of acute bacterial infections. Neutrophils are active phagocytes; they are particularly partial to feed on bacteria. It make up around 40 percent to 60 percent of the white blood cells in the body, and its the first cells produced by the body as a response to a bacterial infection.
