Answer:
2^n where n is the haploid number of chromosome (3)
Explanation:
According to the question, this organism has total chromosomes of 6, which means its gametes after meiosis will have a chromosome number of 3. However, a phenomenon called CROSSING-OVER occurs in meiosis I that increases the chance of genetic diversity/variation among species. This process of crossing-over causes chromosomes to be rearranged in a way different from the parents.
However, the possible number of different combinations of chromosomes in the resulting gametes after meiosis can be found using the simple formula 2^n where n is the haploid number of chromosome. In this case, the haploid number is 3, since the total chromosomes are 6. Hence, 2^3 = 8. It can be said that the particular organism in the question can possibly have 8 different chromosomal combinations in its gamete.
A concentration gradient because diffusion is from a higher concentration to lower concentration.
Different organisms have different number of chromosomes
Answer: The correct answer is B. He could add insulation to the aquarium so that it does not exchange energy with its surroundings.
Explanation-
Isolated system is a system in which there is no exchange of energy and mass. As per the question, heat is radiated from the aquarium. In order to make it an isolated system, insulating or diathermic cover is used over it so that it does not exchange energy with its surroundings.