Answer:
One possible cause of persistent sadness could be depression
Explanation:
Ultraviolet radiation may increase when there is an increase in sunspots
I’m not sure what your asking. But if you have 2 different alleles of a gene it will be heterozygous
Answer:
Cane toads were introduced intentionally in Australia in 1935 to combat cane beetles in the sugar cane crop fields. These toads exhibit higher feeding capacity. These can feed not only cane beetles but other insects which affecting agricultural yields. They are poisonous in nature, they kill any insect after ingestion. Therefore, they are useful biological insecticide which provides crops resistance against insects.
