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tiny-mole [99]
3 years ago
10

What hardens the cell wall​

Biology
2 answers:
Ivenika [448]3 years ago
8 0
Cellulose in plant cell walls and chitin in yeast and fungi cells
Damm [24]3 years ago
4 0
Sclerenchyma. sclerenchyma is a tissue composed of sclereids and fibres that have thickened.
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Múltiple organisms can be called by the same common name ?
Sedaia [141]

Answer:

Yes, multiple organisms can be called by the same common name...

Explanation:

Sometimes different species share the same common name. Other times one organism will have multiple common names. For example, the fish-like organism in our Children's Garden is known as an axolotl, the Mexican salamander, or the Mexican walking fish! Using a genus and a species allows scientists to be very specific.

Hope this helps

4 0
3 years ago
Why is sunlight important for life on earth
VashaNatasha [74]

Answer:

drives weather, ocean currents, seasons, and climate

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The sun has extremely important influences on our planet: It drives weather, ocean currents, seasons, and climate, and makes plant life possible through photosynthesis. Without the sun's heat and light, life on Earth would not exist.

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3 years ago
Which characteristics do temperate continental slmiates have in common
deff fn [24]

They have extreme temperatures, 10-90°, hot humid summers and cold winters. They lack large bodies of water. Are on large continents only in the Northern Hemisphere. Also includes subarctic climates that have cool summers and long, cold winters.

8 0
3 years ago
Suppose a population is carrying a condition controlled by two alleles: P (dominant) and p (recessive). Only homozygous individu
azamat
If we know that we have Pp PP and pp individuals.

Only homozygous individuals that have two coies of the recessive allele have the conditions - 15%
If we know that the p allele itself is found in 15% of the population. 

We know that the P allele is found in 75% of the population (100 - 15)

To now know what is the frequency of the PP genotype, we can calculate this using simple mathematics:

If P is now 75%, to get 2x P we have to calculate 75%*75% =56.25%

So an individual who is of the genotype PP can be most likely found with the frequency of around 60% in this population.
8 0
3 years ago
What benefit does the Guardian robot have over other solutions to get rid of Lionfish?
kondaur [170]

The Lionfish invasion has highlights the complexity of managing the introduced species in the marine environment. The Lionfish is ranked as one of the other aquatic invasive species that which have taken up permanent residence in U.S. waters, such as European green crabs, snakeheads, and zebra mussels. However, the Guardian robot patrols the Atlantic Ocean sucks up invasive lionfish like a vacuum. The Guardian robot is a tethered robot which is made up of eight thrusters with the <em>advantages</em> to undertake several complex manoeuvres and very stable in undersea currents. It has two rods at the front of the device designed to administer a low, controlled voltage which temporarily stuns the fish as jets of water suck the prey into a holding tube. Once the fish are collected from the tube the lionfish may be culled and <em>used</em> as delicious food.

3 0
3 years ago
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