Answer:
#male gametes are formed
#generative nucleus divides
#fertilization takes place
#pollen tube grows
# zygote is formed
#embryo is formed
Answer:
A fault is found that cuts through lower rock layers but not those above it. What can most likely be concluded? The fault is the same age as the layers it cuts through, and the same age as the layers above it.
Explanation:
The correct answer is stabilising selection. This is selection that favours an average trait value. It is thought that this sort of selection is very common as traits among most animals do not appear to change drastically over time. Stabilising selection selects against the extreme traits, and leads to a decrease in genetic diversity by favouring the average phenotypes.
Explanation:
What I got to have
Eutrophication (from Greek eutrophos, "well-nourished") is the process by which an entire body of water, or parts of it, becomes progressively enriched with minerals and nutrients. It has also been defined as a "nutrient-induced increase in phytoplankton productivity". Water bodies with very low nutrient levels are termed oligotrophic and those with moderate nutrient levels are termed mesotrophic. Advanced eutrophication may also be referred to as dystrophic and hypertrophic conditions. Eutrophication in freshwater ecosystems is almost always caused by excess phosphorus.
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