BIOLOGY HIGH SCHOOL

1. Scientific theory
What is the definition of this answer ?

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Answer 1
Answer:

Answer:

scientific theory:  an explanation of an aspect of the natural world that can be repeatedly tested and proved to be a success every time.

Related Questions

State two ways living and nonliving things differ
Which statement about DNA in one of your vrain cells is true?
If thermohaline circulation were blocked, perhaps by plate tectonics, what would happen?Nothing would change.Global climate would be significantly affected.Coastal areas would warm up.There would be an increase in precipitation.
Herbivores, carnivores, and omnivores help make up food chains.TRUE FALSE - only herbivores and carnivores do FALSE - only carnivores do FALSE- only herbivores and omnivores do
The primary organs of excretion are theA. heart and lungs. B. lungs and kidneys. C. kidneys and liver. D. liver and pancreas.

When did the first humans appear on earth

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66 million years ago

a researcher wishes to know whether there is a significant difference in the number of knee injuries reported among four sports. how many degrees of freedom are there for this chi-square analysis

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Answer:

Chi-square analysis cannot be used to check for significant difference in the number of knee injuries among four sports.

Explanation:

The chi-square analysis is a statistical procedure that is used to test association between measured variables or goodness of fits of a set of measured variables to expected outcomes.

In the case of testing for significant difference, chi-square analysis cannot be used as testing for significant difference in two or more means requires using t-test, analysis of variance, or any other relevant statistical procedure.

To compare number of knee injuries reported among four sports for significant difference, the most suitable statistical procedure would be analysis of variance.

How many tetrads form during synapsis of meiosis for humans?

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Answer:

By the end of meiosis, four cells will be created, each with one of the chromatids from the tetrad. Also, don't forget that there are 23 different tetrads formed during meiosis because each chromosome 1-23 will have a tetrad.

Final answer:

In humans, four tetrads form during the synapsis of meiosis.

Explanation:

In humans, a total of four tetrads form during the synapsis of meiosis. Synapsis occurs during Prophase I of meiosis, where homologous chromosomes pair up and form a structure called a bivalent. Each bivalent consists of two pairs of sister chromatids held together by a protein structure called a synaptonemal complex. Since there are 23 pairs of chromosomes in humans, there will be 46 total tetrads formed during meiosis, as each homologous pair forms a tetrad.

Learn more about Meiosis here:

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Which of the following statements about desalination is true?a) desalination is less expensive than water reclamation.
b) desalination uses large amounts of energy.
c) desalination is the main process ised to provide water for crop irrigation
d) all of the above

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The statement that is true about desalination is that desalination uses large amounts of energy, i.e., option b.

What is desalination?

The process by which the dissolved mineral salts are removed from water is referred to as desalination.

The process that is applied to seawater is the most used one to obtain fresh water for human consumption or agricultural purposes.

It generally uses a large amount of energy as compared to other processes.

Thus, the correct option is b.

For more details regarding desalination, visit:

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B. Desalination uses large amounts of energy.

what is dyslexia?and how can a person like orlando bloom overcome it. (read an article about orlando bloom) and answer the question

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dyslexia is a learning disorder mainly in reading.  In most cases dyslexia jumbles up letters like b and d and m and w but there are many diffrent types of dyslexia and you can over come dyslexia in many ways like studying harder or getting a tutor.

The understanding of evolutionary processes has helped scientists in the field of artificial selection. The best example of artificial selection is

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The conservation of bald eagles is not a description of selective breeding, but it could be. For now we can cross that off.
Geographical distribution is a geographical factor of Natural selection, so it can't be B either.
Pesticide-resistant potatoes are altered to be resistant to pesticides (pesticides wouldn't affect plants anyway as they are meant to kill insects)
The answer is D. The collection and reseeding of the largest pumpkins is the best answer.

Answer:

the answer is C: the production of pesticide-resistant potatoes.

Explanation:

just took the test

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Which type of bacteria live in the roots of legumes?nitrogen-fixing bacteria pathogenic bacteria aerobic bacteria rickettsia