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3 years ago

In a controlled experiment, why must all of the variables, except one, be kept constant throughout the experiment

1 answer:

5 0

In order to make sure that the test results of the variables are true or that you did not make a mistake in the experiment.

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Pls help! It’s Due today!!

Karolina [17]

Answer:

DNA is a double stranded molecule that belongs to a group of larger molecules (macromolecules) called NUCLEIC ACIDS.

Nucleic acids are formed by joining together many smaller molecules called NUCLEOTIDES.

Nucleotides consist of:

- Pentose sugar (pentagon)
- Phosphate group (circle)
- Nitrogenous (rectangle)

8 0

3 years ago

HELP ! NOW PLEASE AND THANK YOU

e-lub [12.9K]

Answer:

All of the Above

Explanation:

You can see the craters and mountain ranges from here, and flat lava flows used to be there.

7 0

3 years ago

In guinea pigs hair straightness or curliness is thought to be governed by a single pair of alleles showing incomplete dominance

Nimfa-mama [501]

Answer:

Frequency of allele S is p $= 0.4939$

Frequency of allele C is q $= 0.666$

The population is not in Hardy-Weinberg equilibrium

Explanation:

Given -

Number of individuals with straight hair $= 244$

Number of individuals with curly hair $= 444$

Number of individuals with Wavy hair $= 312$

Let "p" represents the frequency for allele for straight hair and "q" represents the frequency for allele for curly hair

$p^2$ represents the frequency of genotype "SS"

$p^{2} = \frac{244}{1000} \\= 0.244$

$q^2$ represents the frequency of genotype "CC"

$p^{2} = \frac{444}{1000} \\= 0.444$

$2pq$ represents the frequency of genotype "SC"

$2pq = \frac{312}{1000} \\= 0.312$

Frequency of allele S is p

$= \sqrt{0.244} \\= 0.4939$

Frequency of allele C is q

tex]= \sqrt{0.444} \\= 0.666[/tex]

For being in Hardy Weinberg's equation-

$p+q=1\\$

Substituting the values in above equation, we get -

$0.4939+0.666\neq 1$

hence, the population is not in Hardy-Weinberg equilibrium

4 0

3 years ago

What is the function of the different components of blood?

dezoksy [38]

Red Blood Cell: Binds and carries Oxygen
White Blood cell: Fights pathogens that can cause sickness
Platelet: Helps in the healing of cuts and wounds
Plasma: Contains the liquid portion of blood

6 0

3 years ago

In which process is lactic acid formed when there is not enough oxygen present for cellular respiration to take place?

Olenka [21]

Anaerobic respiration.
<span>Anaerobic respiration is a type of cellular respiration BUT does not use oxygen (O2). It is used when there is not enough O2 for aerobic respiration.
</span><span>It can be summarised by the equation: glucose → lactic acid (+ energy released). However, it releases less energy than aerobic repspiration due to a lack of oxygen resulting in an INCOMPLETE breakdown of glucose.
</span>

6 0

3 years ago