Really need some help An experiment with high validity is .

A. probably filled with mistakes

B. a strong candidate to win the Nobel prize

C. not something that can be replicated easily

D. likely to support the same conclusion as other experiments

pretty sure its D not positive though

Explanation:

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.

the atmospheric gas that forms a mild acid when dissolved in water is called carbon dioxide. the correct answer is a. 2.) chemical weathering would cause an inscription on a marble headstone to become harder and harder to read over time.