Answer:
Inorganic fertilizers are not entirely composed of the nutrients needed by the plants. It also contains salts and other compounds. These are not absorbed by the plants so they are left behind in the soil and build up over time.
Answer: G
Explanation: A galaxy is indeed a collection of stars, gas, and dust held together by gravity.
Answer:
In point mutation,the gene is affected however in chromosomal mutations,there is change in the structure or number of the chromosomes
Answer:
echinoderm I'm pretty sure but I'm not 100% so if I get it incorrect I'm sorry
Answer:
The relative position of the genes on the chromosome is CABD
Explanation:
According to the observed recombination events, C and D are the furthest from each other, while C is closest to A, being therefore CABD the correct gene order in the chromosome