The correct option which represents the point in Earth's revolution around the Sun when it is at aphelion is A. in early July.
Aphelion is a term which means 'farthest from the Sun,' which for Earth is around July 4th. Even though it seems weird, because you'd think it's cold when the Earth is so far away from the Sun, because the Earth's axis is tilted, everything is reversed - it is hot when it is farther from the Sun, and cold when it is closer to the Sun.
1) Genes are not visible under the microscope but chromosomes are visible under the microscope.
2) Gene mutations are small, but chromosome mutations are large.
3) Genes are composed of either DNA or RNA, but chromosomes are composed of DNA, RNA AND Histones.
4) A single gene is a locus on chromosome, but a single chromosome compromises of many genes.
Hope this helped :)
Answer:
Double fertilization gives stimulus to the plant that results in the development of the ovary into fruit and ovules into the seed.
Explanation:
The Steady State Theory state that the density of the universe was remaining constant.
<h3>Steady State Theory:</h3>
In cosmology, a steady-state theory is a perspective that holds that the universe is constantly expanding while maintaining a constant average density. According to this theory, the matter is continuously created to form new stars and galaxies at the same rate that older ones fade away due to their expanding distance and accelerating recession. The average density and configuration of galaxies are the same as any location in a steady-state universe, which has no beginning or end in time.
British scientists Sir Hermann Bondi, Thomas Gold, and Sir Fred Hoyle first proposed the hypothesis in 1948. Hoyle expanded on it in order to address issues that had come up in relation to the alternative big-bang theory. According to the hypothesis, in order to maintain a constant average density of matter across time, the new matter must constantly be created, primarily as hydrogen. With nearly five times as much dark matter, the amount needed is small and not immediately observable: one solar mass of baryons per cubic megaparsec every year, or one hydrogen atom per cubic meter every billion years.
Learn more about steady-state here:
brainly.com/question/4956578
#SPJ1
