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Allisa [31]
3 years ago
7

Why do scientists carry out experiments

Biology
1 answer:
denis-greek [22]3 years ago
3 0

Answer:

To test hypothesis and learn more about the world around us. We don't want to live in the dark, now do we? its human nature to wonder and imagine and explore. It's the major quality that makes us even human.

Explanation:

if you were looking for a long answer there u go XD. but a shorter one is just to learn about the world around us.

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Cosmologists are scientists who study stars, galaxies, black holes, and other objects in the universe. In order to study the bil
pishuonlain [190]
Not sure about the answer but I think its the size of the system

6 0
3 years ago
Read 2 more answers
3) Any living thing with one or more cells.
Amiraneli [1.4K]

Answer:

Human, dog, cat, fish

Explanation:

Literally anything but a single celled amoeba

6 0
3 years ago
Read 2 more answers
4.In humans, the allele which confers the ability to roll the tongue is dominant over the allele which does not confer the abili
Elan Coil [88]

Answer:

The correct answer is - 1/2

Explanation:

the ability to roll the tongue is dominant over those who can not roll the tongue. The man is Rr (man), heterozygous. The woman is recessive and can not roll

Rr (man) x rr (woman)---Parents

           r

R Rr (roll)

r rr (cann't roll)

The probability of their children to able to roll = 1/2 = 50%

4 0
3 years ago
Emily has been asked to find out how
Juliette [100K]

She should investigate how temperature affects the rate of oxygen production.

<h3>Photosynthesis</h3>

During photosynthesis, green plants make use of inorganic products in the form of water and carbon dioxide to synthesize carbohydrates. The reaction only happens in the presence of solar radiation and oxygen is evolved as a by-product.

The process involves a series of chemical reactions. However, the summary of the whole reactions is represented by the following equation:

carbon dioxide + water ----> glucose + oxygen

Thus, if Emily is to find out how temperature affects photosynthesis. She will need to use a plant as a case study. One factor that can easily be used to measure the rate of photosynthesis is oxygen production by plants.

In other words, Emily will have to set up an experiment where a plant species will be subjected to the same environmental conditions, except temperature. Then, a suitable method will be used to measure the amount of oxygen produced. Any difference in the volume of oxygen produced can then be attributed to the effects of temperature.

More on photosynthesis can be found here: brainly.com/question/1388366

#SPJ1

3 0
2 years ago
Question 6 You cross a true-breeding red-flowered snapdragon with a true-breeding white-flowered one. All of the FI are pink. Wh
muminat

Answer:

E (Red shows incomplete dominance over white)

Explanation:

This portrays a monohybrid cross involving a single gene coding for flower colour in snapdragon plants. According to the question, a purebreeding red flowered (homozygous) plant is crossed with a purebreeding white flowered (homozygous) plant to produce an all pink flowered offspring. This phenomenon is called INCOMPLETE DOMINANCE.

Mendel, in his experiments, discovered that an allele can mask the expression of another in a heterozygous state. He called the allele that masks DOMINANT allele while the allele that is masked RECESSIVE allele. However, exceptions like INCOMPLETE DOMINANCE, has occurred in the sense that an allele does not completely mask the expression of its allelic pair, instead an intermediate phenotype, which is a combination/blending of both parental phenotypes is produced.

In this case, the red flowered snapdragon (RR) does not completely cover up the expression of white flower (rr), hence a hybrid/heterozygous offspring is produced that combines the phenotypic characteristics of both parents to form an intermediate flower colour (pink). Hence, it can be said that Red flower is incompletely dominant over white flower or no allele/trait is dominant or recessive to another.

3 0
3 years ago
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