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Roman55 [17]
3 years ago
8

A scientist was testing an unknown chemical for the presence of various sugars and found that the only sugar present was the mon

osaccharide ribose. Which of the following molecules is most likely the unknown chemical?
Biology
1 answer:
maxonik [38]3 years ago
6 0

The answer is; Benedict’s reagent

It is used to test for reducing sugars. In presence of these sugars, the reagent, that is blue in color, turns different shaded of red (to brick red), depending on the amount of reducing sugars in the solution. It is important to note that the solution has to be heated.


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Why do living organism need energy
zaharov [31]

they need energy because there cells need to reproduce  

8 0
3 years ago
Arrange the events in the correct order to describe how the magnetic field forms around Earth.
horsena [70]
The correct sequence of events is : C,D,B,A.
Iron rich magma in the earth's core heats up because of radiation and the pressure exerted by the other layers of the earth. This heat in the crust trigger convection currents in the mantle. The magma closest to the core will be hotter and therefore less dense than other layers. Being less dense the layer will rise towards the crust, eventually becoming cooler and sinking back down in a circular motion.
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6 0
3 years ago
In a hardy-weinberg population with two alleles, a and a, that are in equilibrium, the frequency of allele a is 0.2. what is the
Allushta [10]
The Hardy-Weinberg equation is as follows:
( {p + q})^{2}  = 1
{p}^{2}  +2pq +   {q}^{2}  = 1
Where:
(convert all % to decimals)

p= homozygous dominant
q= homozygous recessive
pq= heterozygous

While you did not specify whether the 0.2 frequency was for dominant or recessive, we can still figure out the answer.

Using the 1st equation, we can solve for the other dominant/recessive frequency:

1-0.2=0.8

Meaning that:

p= 0.8 & q=0.2

If the heterozygouz frequency is 2pq, then it becomes a simple "plug & chug" sort of approach.

2(0.8)(0.2)= 2(0.16)= 0.32

So, the heterozygous frequency would be:
0.32

Hope this helps!
8 0
2 years ago
What pigment absorbs UV light?​
Ludmilka [50]

Explanation:

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3 0
2 years ago
The contraction of auricular muscles around the ear produces a range of motions in the ears of domesticated animals as well as t
creativ13 [48]
The correct answer is letter C, in most primates, the inability to move the ear has been replaced by the ability to stand upright on two legs. This is because movement was much of a need to these primates than hunting for food. They needed to be agile to locate specific places where sources of food are abundant.
7 0
3 years ago
Read 2 more answers
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