Which of the following qualifies as point-source pollution? a. a sewer pipe dumping raw sewage into a stream
b. fertilizer runoff from agricultural fields
c. exhaust from vehicles in a county
d. solid waste from consumers in a city
e. pollutants emitted by power plants in a region

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the answer is c

explanation:

ans.

gregor john mendel is known for study of inheritance in pea plants. he used garden pea plant for his study, having alternative traits for various characters. he performed cross-breeding in pea plants to check how characters are transmitted between parents to offspring, such as cross between pure tall and pure dwarf plant. mendel studied the inheritance patterns in pea plants for various generations.

thus, the correct answer includes options and f).

both male and female gametes are produced by meiosis of the germ cells. therefore, both male and female gametes are haploid. one male and one female gamete unite during the fertilization to form the diploid zygote. in seed bearing plants, pollen grain is the male gametophyte, which produces sperm cells.