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Evgen [1.6K]
3 years ago
12

Why are tools helpful to scientists?

Biology
1 answer:
solmaris [256]3 years ago
7 0

Answer: One of the most enjoyable things about building something is getting to use all the cool tools. Builders use power saws, drills and electric sanders to turn raw materials into unique creations. Just like builders, scientists use tools to get the results they want. Scientific tools help scientists take precise measurements, carry out experiments and make observations. In this lesson, we will learn about some common scientific tools that you might encounter in your school's science lab as well as some more advanced tools scientists in the life sciences are using to investigate the world around us.

Explanation: please mark as brainliest!

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Is it ever possible for two parents to have a colorblind daughter but not a color blind son? Explain.
Anna [14]
Yes, it’s possible. The genetic that they give out to their children depends. If the parents gives out the genes for colorblind for the daughter but not the son, it’s possible.

It’s just like having a child with disabilities and another child that is perfectly healthy.
4 0
3 years ago
Red–green color blindness is an X-linked recessive trait in humans. Polydactyly (extra fingers and toes) is an autosomal dominan
Tamiku [17]

Answer:

The girls with polydactyly  color-blind and is 1/8, the boys with normal fingers and color vision is 1/8.

Explanation:

X - linked recessive trait may be defined as the trait that are normally passes down from mother to son. Males have high chances since they have only one X chromosme. The female should have both X chromosome affected to express the trait. Autosomal dominant trait express the trait in both the homozygous dominant and heterozygous condition.

The red - green color blinded male with polydactylous is married with female that have normal color vision and normal toes and finger. With the help of pedigree chart and probability,the outcome of their children with specific phenotype can be calculated.

Martha is normal for poldactyly and contains recessive trait for polydactyly. She is a carrier for the color blindness as his father is affected by the disease. Bill is affected by the color blindness and heterozygous for the polydactyly trait. The marriage between marry and bill have the children with  1/8 proportion of the girls can be color bind and shows polydactyly {1/4 ( girls with color blindness) × 1/2 ( the probability of polydactyly}. 1/8 proportion of the boys with normal vision and normal toes and finger {1/4 (boys are normal) × 1/2 ( the probability of normal toes and finger}.

5 0
3 years ago
What role do roots play in photosynthesis?
Alexandra [31]
Each plant contains a branched system of tubes called xylem, which is responsible for water transport from the roots<span> (where it is taken up) to the leaves (where it is used in </span>photosynthesis<span>).

hope this answers your question</span>
8 0
3 years ago
A student is collecting the gas produced
marissa [1.9K]

Answer:

0.062 moles of hydrogen gas

Explanation:

We must first out down the reaction equation before we can attempt to solve the problem.

Mg(s) + 2HCl(aq) ----> MgCl2(aq) + H2(g)

Next we obtain the number of moles in 1.5 g of magnesium metal from;

Molar mass of magnesium = 24.3 gmol-1

Number of moles of magnesium= mass/molar mass = 1.5g/24.3gmol-1 = 0.062 moles

From the reaction equation;

1 mole of magnesium metal yields 1 mole of hydrogen gas

0.062 moles of magnesium metal will yield 0.062 moles of hydrogen gas

Therefore, reaction of 1.5g of magnesium metal with excess hydrochloric acid will yield 0.062 moles of hydrogen gas.

7 0
3 years ago
The biosphere can best be defined as​
Vlad1618 [11]

These are the regions of the earth that are occupied by living organisms.

Hope this helps you!!^_^

4 0
3 years ago
Read 2 more answers
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