Answer:
A. All of the offspring plants will have purple stems.
Explanation:
All of the offspring plants will have purple stems because both the parents have the same stem color i. e. purple so if they mate with each other , the offspring produce have the same color of stem. Both parents plants are heterozygous which means that they are different from one another in some characteristics but also some similarities such as stem color etc. So all the offspring produce have purple-stemmed.
B. Sunlight doesn't reach the bottom of lakes..
Yes decaying plants add carbon to the soil
Answer: Increase in species numbers and diversity
Explanation:
Upwelling is an oceanographic phenomena in which the water from the bottom layers of the ocean usually above the seafloor get displaced and reach upto the surface layers with the effect of wind currents. The water carries away along with it the nutrients and the organic matter to the surface layers which allows the efficient growth of plant and planktonic diversity which favors the growth of sea animals like fishes and others. Hence, by this way the species diversity and numbers increases by the process of upwelling.
