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IrinaK [193]
3 years ago
9

How was the earth first formed?

Biology
1 answer:
ryzh [129]3 years ago
5 0

Answer:

Earth formed when gravity pulled swirling gas and dust in to become the third planet from the Sun.

Explanation:

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Magical ability is a dominant trait controlled by two loci. To be able to perform magic, a person would need to carry at least o
dangina [55]

Answer:

b. aaBb x AAbb

Explanation:

According to the information in this question, the trait for magic ability is controlled by two genes, each comprising of two alleles i.e. A,a and B,b. However, to be able to perform magic, a person would need to carry at least one copy of the dominant allele (A and B) on each of the two loci.

Hermione Granger has magical ability but neither one of her parents does. This means that although Hermione can perform magic, none of her parents can. Genetically, it means that Hermione posseses at least one copy of the dominant allele on each of the two loci i.e. her genotype is A_B_.

This is only possible in Hermione if her parents transferred a dominant allele at each loci to her. This means that the possible genotypes for Hermione Granger’s parents are aaBb (no magical ability) x AAbb (no magical ability). See the punnet square attached where the probability of producing offsprings with magical ability is 1/2 or 50%.

4 0
3 years ago
The endocrine system is the body’s ____ system
dedylja [7]

The Endocrine System. As noted earlier, the endocrine system is not a part of the nervous system, but it is still essential to communication throughout the body. This system is composed of glands, which secrete chemical messengers known as hormones.

3 0
3 years ago
A person whose blood tests show neither protein A nor protein B present has blood type: 1.O 2.A 3. AB URGENTTTTTTT IN A QUIZ
Llana [10]

1, O because if either shows present it's O.

8 0
3 years ago
What are new stars that are found in the spiral arms and formed from recycled dead star material known as?
Arada [10]

Answer:

population I stars.

Explanation:

A star is a giant astronomical or celestial object that is comprised of a luminous sphere of plasma, binded together by its own gravitational force.

It is typically made up of two (2) main hot gas, Hydrogen (H) and Helium (He).

The luminosity of a star can be defined as the total amount of light radiated by the star per second and it is measured in watts (w). Also, the apparent brightness of a star is a measure of the rate at which radiated energy from a star reaches an observer on Earth per square meter per second. The apparent brightness of a star is typically measured in watts per square meter.

Some of the examples of stars are; Canopus, Sun (closest to the Earth), Betelgeus, Antares, Vega etc.

New stars that are found in the spiral arms and formed from recycled dead star material are known as population I stars. Also, it comprises of association and clusters formed a million or billion years ago in the spiral arms of Milky Way galaxy.

A galaxy can be defined as a collection or group of many billions of stars and other planetary body which are existing independently.

6 0
3 years ago
Read 2 more answers
Why does the rate of photosynthesis increase and then reach a plateau as the concentration of co2 around a plant increases?
IrinaVladis [17]
 Answer

Light intensity increases also, but it gets to a point that the temperature increases and denature the enzymes involved so a plateau results.

5 0
3 years ago
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