Lamarck's idea of "acquired traits" proposed that a. acquired traits are passed down from parent to offspring. b. in animals, traits that are used often will grow and change shape. c. acquired traits are not passed down from parent to offspring. d. in animals, traits that are not used often will shrink and change shape.

The correct answer is-  A. acquired traits are passed down from parent to offspring.

Lamarck proposed a theory of inheritance in 1801, which is called Inheritance of acquired traits/characteristics.

According to this theory, during a life span, a individual brings certain changes in his characteristics in order to adapt to the changing environmental conditions. These changes are called acquired traits and can be passed from one generation to the next generation (that is from parents to their offspring).

Thus, option A) is the right answer.

answer: after carbon dioxide enters the leaf through stomata it moves into the mesophyll cells where photosynthesis occurs and glucose is constructed. respiration occurs when glucose (sugar produced during photosynthesis) combines with oxygen to produce useable cellular energy.

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).