Stomach cells are moderately well adapted to the acidity and protein-digesting activities in the stomach by having .

they both go up but then go back down. they both end lower than they started. lastly, they both are competitive/the second on.

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).