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MrRa [10]
3 years ago
11

Why do you think plastic is a good choice for kayak material?

Biology
1 answer:
Mkey [24]3 years ago
7 0

Answer:

It depends on what way your viewing it, but i will assume its an engineering standpoint.

Explanation:

Plastic is light, and for what it is very strong. It also floats in water, and can easily be molded into any shape. With a kayak for example, plastic is great because it is sturdy yet flexible, and makes it light weight.

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You find a population of strange cells in a sample of pond water. You wish to determine first whether they are eukaryotic or pro
Colt1911 [192]

Answer:

Membrane bound cell organelles

Explanation:

A prokaryotic cell lacks a membrane defined nucleus and all the membrane-bound organelles. A eukaryotic cell has a membrane-bound nucleus and other membrane-bound organelles such as mitochondria, chloroplasts, endoplasmic reticulum, lysosomes, Golgi apparatus, etc.

To determine if a cell is a prokaryotic or eukaryotic, one can look for the nucleus and the membrane-bound organelles. If the cell has a nucleus and membrane-bound organelles, it is a eukaryotic cell. The absence of these structures makes it a prokaryotic cell.

5 0
3 years ago
Which reactions in glycolysis are physiologically irreversible?
bagirrra123 [75]
The reactions of glycolysis are made up of ten steps, out of the ten step three are irreversible, this is because, these reactions have large negative free energies The three steps that are irreversible are:
1. Phosphorylation of glucose.
2. Phosphorylation of glucose 6 phosphate and 
3. Transfer of phosphate from phosphoenolpyruvate to ADP.
5 0
3 years ago
An element has a half-life of 30 years. If 20 mg of this element decays over a period of 90 years, how many mg of this element w
Vlada [557]

Answer:

2.5 mg

Explanation:

<em>The half-life of a substance is the time required for one half of the substance to decay. In order words, it is the time it will take for a substance to decay into  half of its initial size.</em>

For a 20 mg element with a half-life of 30 which decays over a period of 90 years;

The first 30 years, 10 mg would have decayed, remaining 10 mg

The second 30 years, the remaining 10 mg would have decayed to 5 mg

The third 30 years, 5mg would have decayed to 2.5 mg.

Hence, in 90 years, 20 mg of the element would <u>remain only 2.5 mg.</u>

7 0
2 years ago
What is an urban heat island?
Anarel [89]

Answer: A urban heat island is an urban area or metropolitan area that is significantly warmer that it's surroundings rural areas due to human activities.

Explanation:

6 0
2 years ago
Adipose tissue is one of the most hydrated of all tissues in the human body
navik [9.2K]

Answer:

False

Explanation:

Adipose tissue is one of the lease hydratetd of all tissues in the human body.

3 0
2 years ago
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