Answer:
question no 1 answer
A root hair,or absorbent hair, the rhizoid of a vascular plant, is a tubular outgrowth of a trichoblast, a hair-forming cell on the epidermis of a plant root. As they are lateral extensions of a single cell and only rarely branched, they are visible to the naked eye and light microscope. They are found only in the region of maturation of the root. Just prior to and during root hair cell development, there is elevated phosphorylase activity. Plants absorb water from the soil by osmosis. Root hair cells are adapted for this by having a large surface area to speed up osmosis. Another adaptation that they have is a large permanent vacuole.
question no 2 answer
Answer: Stems hold the plant upright and support it. They also transport water, minerals and sugars to the leaves and roots.
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because i have taken it on by book
Answer:
Matter is transfered through the light stage due to the trapping if water
Explanation:
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People who had this mutation back in the 14th century had better chance of survival (better fitness) then people who did not have this mutation. They were majority of people who survived the Black Death because of natural selection. Their offspring inherited this mutation too, and their offspring after.
There was no natural selection for this mutation in some other parts of the world because they were not hit by the Black Death.
Since the same mutation is responsible for immunity to HIV and the Black Death, offspring of the people who have survived the Black Death are immune to HIV too. Part of the world that was hit by the Black Death, now have more people with this mutation.
Mobility and active predation and escape are best correlated with Bilateral Symmetry of Animal Kingdom
<u>Explanation:
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The animal exposing bilateral symmetry utilizes this specific feature in mobility, active predation and escape. Due to streamlined body arrangement they have the ability to live in any places which may be a hole or a small crack in between the rocks etc.
They also use this feature to exhibit a pace movement in water and other region in which they survive. Due to cephalization organism exhibiting bilateral symmetry has the ability to think and act spontaneously which helps them to escape from the predators.
