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ryzh [129]
2 years ago
12

What’s a convection current and how is it caused?

Biology
1 answer:
kherson [118]2 years ago
7 0

Answer:

Convection currents are the result of differential heating. Lighter (less dense), warm material rises while heavier (more dense) cool material sinks. It is this movement that creates circulation patterns known as convection currents in the atmosphere, in water, and in the mantle of Earth.

Explanation:

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3. In centaurs, the allele for curly tails (T) is incompletely dominant to the allele for straight tails (t). The hybrid genotyp
Reptile [31]

Answer:

a. Determine the allele frequencies of:

f(T) = 0.485 ≅ 0.48

f(t) = 0.515 ≅ 0.52

b. Determine the genotype frequencies of the exposed generation

  • F (TT) = 0.21
  • F (Tt) = 0.55
  • F (tt) = 0.24

the genotype frequencies of the next generation

  • F(TT) = 0.23
  • F(Tt) = 0.5
  • F(tt) = 0.27

Explanation:

Due to technical problems, you will find the complete answer and explanation in the attached files

Download pdf
3 0
3 years ago
What would be an example of a colloid in a plant?
sp2606 [1]

Answer:

Phloem sap.

Explanation:

A colloid is a combination of different types of molecules mixed through other substances that will not join (form a chemical bond) with the other substance.

Phloem sap is a mixture of water, carbohydrates, hormones and other type of substances flowing together but not bond by a chemical bond.

5 0
3 years ago
Explain how water, glucose and mineral salts are transported through a plant
spayn [35]

Answer:

Plants have tissues to transport water, nutrients and minerals. Xylem transports water and mineral salts from the roots up to other parts of the plant, while phloem transports sucrose and amino acids between the leaves and other parts of the plant.

 

pls mark brainliest. Thank you

8 0
2 years ago
Provide at least three reasons why friction is needed.
Oduvanchick [21]

Answer:

Although you normally hear about trying to reduce or eliminate friction, it actually has some important uses.

Since friction is a resistance force that slows down or prevents motion, it is necessary in many applications where you might want to hold items or do things and prevent slipping or sliding. In those cases, there is an advantage of having friction.

Quite often uses of frction can be seen from how things would be without friction. Without friction, you would not be able to walk, drive a car, or hold objects. Pens and pencils would not work.

Explanation:

4 0
2 years ago
Read 2 more answers
Male cats are either black (B) or orange (O). Females are black, orange, or calico, which has patches of black and
Sindrei [870]
The answer is orange because the way that he said the problem out.
4 0
3 years ago
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