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iren2701 [21]
2 years ago
8

In the history of astronomy, which of the following is true?

Biology
1 answer:
Naya [18.7K]2 years ago
3 0

Answer:

Johannes Kepler was a student of Tycho Brahe.

Explanation:

Johannes Kepler joined the wealthy astronomer Tycho Brahe as a student as assistant. After the death of Brahe, Kepler used his observations data and based on it formulated the three laws of planetary motion. Galileo described the heliocentric model with planets revolving about the Sun in circular orbits which was corrected by Kepler. He corrected that the orbits are elliptical.

Ptolemy believed in geocentric model, according to which Earth is at the center of the universe. Galileo did not built observatory. Issac Newton believed in heliocentric model of the universe.

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compare the physical and chemical properties of a compound to those of the elements of which it is composed.
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Answer:

Compound: These are made of the various type of same or different elements. These elements show a specific ratio in a particular compound.

The physical properties are traits of a particular compound or element that can be observed physically like the state of matter, color, odor, and other. The chemical properties and physical properties of compounds and elements they formed are different.

It is not comparable as the elements have no or very little individual value in a compound. For instance, water made of hydrogen and oxygen, where water is liquid and constituents are gas.

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What impact would the loss of the grizzly bear population have on a food web (how would other organisms be impacted)?
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there would be a surplus of other prey species

Explanation:

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3 years ago
The failure of sister chromatids to separate properly during cell division
Vinvika [58]

Answer:

huh? wait..what?

Explanation:

6 0
2 years ago
How many types of mutations are there​
Nastasia [14]

Answer:

Depending on changes, that occur with DNA, all types of DNA mutations can be divided into two main groups:

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Explanation:

8 0
3 years ago
A species of fly has two alleles for the length of their legs. The allele for long
stira [4]

Answer:

According to Hardy Weinberg law (p+q)2=1 where p is fequency of one allele and q is the frequency of another allele.

According the question

 q represent the short legs and 33 of 100 organism have short legs.

   As a result the frequency of q with respect to the 100 organism is 33/100

                                                                                                                  =0.33

Therefore q=0.33

 we all know that

            (p+q)2=1

             ∴  p+q= 1

             ∴  p=1-q

               p= 1-0.33

                   p=0.67

The frequency of p is 0.67

Explanation:

6 0
3 years ago
Read 2 more answers
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