Answer:
Galaxies.
Explanation:
A galaxy is a massive gravitational star system. They contain stars and their remains. Planets and other celestial bodies can orbit the stars. Between the stars is an interstellar substance containing gas, cosmic dust, and cosmic radiation, the denser regions of which are interstellar clouds. In addition, galaxies contain large amounts of dark matter, the nature of which is unknown.
Whereas for a long time the number of galaxies in the visible universe was long estimated at 200 billion, the number of galaxies is estimated to be at least 2 trillion based on recent observations.
B.) About 80%
Just a curiosity, do you know the answer yourself?
Answer:
Explanation:
This is an example of natural selection. Populations evolve, not individuals. ... Individual organisms do not evolve, they retain the same genes throughout their life. When a population is evolving, the ratio of different genetic types is changing -- each individual organism within a population does not change.
Explanation:
As we know that different versions of the gene are called as the alleles. Allele is the various sequence of DNA (deoxyribonucleic acid) or alleles are known to be different forms of the genes, which can be seen at the same locus on the homologous chromosomes. Let us know assume that gene Tyx has two alleles in it, which represents the two forms of expression having same character. i.e. Tallness and Dwarfness TT(tall), Tt(tall), tt(dwarf). In the given question, the version
(a) TT, where alleles exist in the homozygous dominant conditions,
(b) Tt, where alleles exist in the heterozygous dominant condition
(c) tt, where alleles exist in homozygous recessive condition. Therefore, it might follow autosomal dominant inheritance, or autosomal recessive inheritance or incomplete dominance etc.