Answer:
The pressure flow theory states that water with food molecules inside of it moves through the phloem of a plant through pressure. This theory is meant to explain how food moves around inside plants. The pressure flow theory notes that pressure is created through water being pulled into the cells of the plant. The water cells are pulled into the plant when a diffusion gradient exists. This gradient creates a change in pressure, which forces osmosis.
Explanation:
The answer is 5 . ..............................................
Answer:
Charles Robert Darwin was a British naturalist and biologist known for his theory of evolution and his understanding of the process of natural selection
Explanation:
2. <u>Some of these variations are passed on to offspring;</u>
- As the genetic changes may occur due to mutations in the genes.
- As these changes do not occur in days or months but they occur after hundred and thousands of years.
- The off springs are distinct from their ancestors. This results in the formation of new species. Gradual modification of the existing species leading to the formation of new species is known as speciation.
4<u>.Individuals vary in their ability to survive and reproduce</u>;
- Those with the most favorable adaptations are more likely to survive and reproduce.
- Individual variation (usually through mutation) may introduce traits or abilities that enable that individual to survive in order to reproduce. Usually these are tiny incremental changes that accumulate over centuries or millennia.
<u>Note:</u><em> However there are certain drawbacks of Darwinism even such as it failed to explain the basis of variation and the mode of transmission of characters.
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The correct answer would be A
The male stamens hold the pollen, the female pistil holds the ovule, and the petals attract pollinators.
<span>The Chemostat culture systems would be the system that the colon would resemble because it support diverse bacteriophage communities from human feces.</span>