3) is active transport because active transport requires energy.
It flows from a high to low concentration gradient across the membrane.
1. Whorls
2. Organs
3. Symmetry
<u>Explanation:</u>
Some important traits that influence the reproductive success of a flower include: the presence or absence of whorls, the fusion of organs to one another, and the overall symmetry of flowers.
In the process of reproduction in plants, the male and female gametes are produced and transfer of the male gametes to the female ovules occurs. This process is called as pollination. After pollination occurs, fertilization happens and the ovules grow into seeds within a fruit
Floral zygomorphy confers a reproductive advantage to rare plants" as a result of the enhanced pollination efficiency.
Answer: The mesosphere starts at 31 miles (50 km) and extends to 53 miles (85 km) high. The top of the mesosphere, called the mesopause, is the coldest part of Earth's atmosphere, with temperatures averaging about minus 130 degrees F (minus 90 C). This layer is hard to study
Explanation: hope this helps please give brainliest!
