<h3><u>Answer;</u></h3>
A) Size: universe -> galaxy -> solar system
Number of objects: universe ->galaxy -> solar system
<h3><u>Explanation;</u></h3>
- <em><u>The relative size and relationship between the solar system, galaxy and universe is such that; universe is the largest, followed by the galaxy and solar system the smallest.</u></em>
- <em><u>Similarly in terms of the number of objects, objects in the universe are more compared to those of the galaxy and the solar system.</u></em>
- In a nut shell, universe refers to everything that exists, galaxies are giant structures that are made up of billion of stars. The universe is made up of billions of galaxies. A solar system is a region of space where the gravitational force of a star influences all the other objects.
Answer is: <span>A. During crossing over, genetic information is exchanged between two homologous chromosomes.
</span>Crossing over results in recombinant chromosomes<span> during </span>sexual reproduction, <span>increases the genetic diversity of sexually reproducing organisms.
</span><span>In crossing over matching regions on matching chromosomes break and then reconnect to the other chromosome.</span>
Annelids have closed circulatory system
Answer:
Nothing.
Explanation:
You just have a brown haired child, it means nothing.
our thyroid glands plays a main role in a human body. It secretes thyroxine and calcitonin. In which thyroxine help in growth and cellular metabolism and calcitonin helps to regulates calcium concentration in blood . If thyroid gland stops working then there is low level of calcium in our blood, which leads to mental and hormonal disorder. In this way a person's blood calcium level would be affected if his/her thyroid gland stops working.