1. Stars last forever
2. Nuclear fusion
3. Space
4. Name
5. D
6. B
7. C
8. A
The primary source of energy in a food chain is Sun, because producers are the ones that prepare food by themselves and that food is then passed on to higher levels in food chains. And as the producers make their from Sunlight, the primary source of energy in food chain is <u>Sunlight</u> .
Answer:
c. separation of homologs at anaphase I
Explanation:
Law of Segregation is also popularly known as purity of gamete. Law of Segregation is proposed by Mendel’s which stands universal law till date. The law states that allele (alternative form of same gene) pairs separate or segregate at the time of gamete formation.
The gametes form by meiosis or reductional division so, each gamete receives only one allele of trait.
During metaphase I of meiosis the homologous chromososmes gets arranged on the central plate and get attached to the spindle fibres and then anaphase I begins with the separation of each chromosome of the homologue. Each chromosome of a pair moves to opposite poles.
Meiosis is important because it ensures that all organisms produced via sexual reproduction contain the correct number of chromosomes. Meiosis also produces genetic variation by way of the process of recombination. Meiosis is important because it produces gametes, female or male germ cells.
I'm pretty sure your answer should be D. Ship Ballast. Hope this helps! =^-^=
