Answer:
C. Mannose receptor
Explanation:
They are soluble receptors used by macrophages to aid phagocytosis. They are not associated with the phagocyte membrane and thus helps the macrophages to act on cells without getting in contact with the membrane
Answer:
The answer is c. W,X,Z
Explanation:
According to the evolutionary timeline:
- (W) In 1798, Thomas Robert Malthus published an essay, "An Essay on the Principle of Population." Malthus proposed that the current rate of population growth would deplete current resources.
- (X) 1809 marked the publication of the first theory of evolution. Jean Baptiste Lamarck proposed that evolution occurred through the inheritance of acquired characters.
- (Z) In 2003, Wayne State University School of Medicine's Dr. Morris Goodman conducted studies that revealed a 99.4% genetic similarity between human and chimpanzees. This sparked a debate in the scientific community whether to include chimpanzees in the genus, Homo.
- * If Y is part of the choices, it comes after (X).
Answer:
b. Sympatric autopolyploidy
Explanation:
Sympatric speciation will occurs when a new species when two groups from the same ancestral population evolve without any geographical separation.
Autopolyploidy will appear when an individual possess more that two sets of chromosomes both from the same parental species
Therefore, since a new species was formed as a result of autopolyploidy. The type of speciation that occurred was Sympatric speciation.
Answer:
D
Explanation:
disinfection i think havent really learned this
Answer:
A band - light central region of sarcomere.
Explanation:
Sarcomere is the basic structural unit of the skeletal muscles. These sarcomere shows striations ( light and dark bands) when veiw under the microscope.
A band or anisotropic band is the dark region of sarcomere. A band consists of both thick and thin filaments of actin and myosin proteins. The A band has the ability to refract light and appears dark.
Thus, the correct answer is option (D).