Answer:
The hole is lack of knowledge of the concept of natural selection, especially its physical properties and how it operates.That is what made those organisms with fitted traits to resit the selective pressures and therefore survive than others with less resistance .
Basically,he lacked the knowledge of the concept of variation as the driving mechanisms of natural selection he theorised. Darwin did not understand how variation among different species of organisms physically emerged to made these organisms resistant to the selective pressure, and therefore emerge as the survival of the fittest in the population.
Explanation:
Answer:
Producers are capable of photosynthesis, a process by which they covert light energy into chemical energy, while consumers use respiration. Producers generate complex organic molecules, while consumers break them down into simpler ones (say, sugars to carbon dioxide, etc.).
Explanation:
The correct answer is ferns and horsetails.
<span>Recent research analyzes have shown that there are three monophyletic groups of vascular plants: 1. lycophytes, 2. seed plants and 3 a clade including horsetails and ferns.</span> <span>The monophyletic group includes a group of organisms descended from a single ancestor.</span>
