How do the main sequence stages of these two sizes of stars differ?

Explanation:

Even apart from how bright they appear, which is affected by how far they are from us, stars come in a tremendous range of sizes. So stars aren't all the same mass because the clouds from which they condense are not all the same mass.

The main sequence stages of these two sizes of stars differ in their actual distance from the surface of the earth and their ability to condense the mass of the clouds.

The brightness of a star is determined by the fact that the distance from the earth. If you take a star and move it twice as far away, it would definitely appear 1/4 as bright. The larger the star is, the more energy is put out in order to liberate its brightness.

The sizes of the stars may vary a lot. This means that they have different distances and brightness from the earth. So, all stars do not occupy the same mass. This is because the clouds from which they condense or are covered may not possess not the same mass.

Therefore, the main sequence stages of these two sizes of stars differ in their actual distance from the surface of the earth and their ability to condense the mass of the clouds.

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What happens in the G2 phase of the cell cycle?
The cell prepares for cell division.
The replicated chromosomes divide.
The cell enters the post mitotic phase.

HELP ME ASAP!!!!!!!!

Assignment: Using Punnett Squares Exploration

First Cross





















Genotypic ratio:
Phenotypic ratio:


Second Cross





















Genotypic ratio:
Phenotypic ratio:
Third Cross





















Genotypic ratio:
Phenotypic ratio:



Questions
1. What conclusions can you draw about the results of your first cross between a homozygous red bull (RR) and a heterozygous red cow (Rr)?






2. What conclusions can you draw about the results of your second cross between a heterozygous red bull (Rr) and a heterozygous red cow (Rr)?






3. What conclusions can you draw about the results of your third cross between a homozygous white bull (rr) and a homozygous white cow (rr)?

xplain how the study of taxonomy helps other scientists.

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in what direction does the shadow from a stick or sundial point at each point of the following times

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Topsoil that washes onto a coral reef _____.

A gene is a region of DNA that contains instructions for the manufacture of?

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By having white blood cells to attack pathogens
By delivering oxygen to cells so they can divide
By delivering nutrients from food to cells
By carrying waste to the kidneys

Using the periodic table and your knowledge of atomic structure. Compare the number of electrons in a Carbon-12 and Carbon-14 isotope.

Which of these is an ABIOTIC change to an environment?

A. A species goes extinct

B. A fire destroys the topsoil in a forest

C. A tree falls down

D. A new species is introduced

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dysentery
polio
mumps
hepatitis

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are negatively affected because there is less oxygen in the water.


are positively affected because the small fish polluted the water.


are negatively affected because they feed on the small fish.


are positively affected because there is more space.

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Name 5 things our atmosphere does for us

Scientists believe green algae to be the ancestors of land plants. The classification division separating algae from the kingdom Plantae began with fossil evidence. To be successful land plants require certain modifications. This early Devonian land plant had both vasular tissue and, as seen here, A) roots. B) spores. C) seed pods. D) chlorophyll.

How does the rock cycle transform rocks from one type to another?

4). A particular bird species found in North America obtains most of its food energy by catching and eating insects. A mutation arises in this bird population that increases the length of its beak. Although many mutations are harmful, this particular mutation has increased the ability of the bird to catch and eat certain insects. Which of these is the MOST LIKELY outcome of this mutation?

A) The insects that are eaten by this bird are likely to become extinct.
B) Sharp pointed beaks will result in the birds eating other more unusual food items.
C) Other bird species will be more likely to also develop pointed beaks in order to compete.
D) Individual birds with the mutation will be more likely to survive and reproduce than birds without the mutation.

5). In 1831, Charles Darwin visited the Galapagos Islands. While observing the giant land tortoises that lived on these islands, Darwin noted that the shape of the tortoise shell varied depending on which island the tortoise lived. Tortoises on one island had round shells, for example, whereas tortoises on a neighboring island had more flattened, saddle-shaped shells. Which statement BEST summarizes Darwin's explanation for these differences?

A) Random mutations caused the shape of the shells to fluctuate periodically.
B) The shape of the tortoise shell varied because the predators on the islands were all similar.
C) The particular shape of the shell was best suited for the island on which the tortoise was living.
D) Tortoises who used their shells in special ways caused the shells to become larger, rounder, or flatter.

which fossil fuel is the most widely used in the United States

Voluntary muscles can be controlled, while involuntary muscles cannot. Do you think stomach muscle is voluntary or involuntary?

a lion eating a zebra is an example of which characteristic of life?

- having cells
- responding to the environment
- using energy
- growing and developing

1. In pea plants, purple flower color is dominant to white flower color. If a homozygous dominant flower mates with a white flower, what is the chance of having white flowered offspring?

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What is the largest level of organization for the environment?
population
biosphere
community
ecosystem

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A) Brain

B) Nucleus

C) Hormone

D) Enzyme

What is a Winter storm Watch?

Which amino acid would be encoded by the mRNA codon CGA?