BIOLOGY HIGH SCHOOL

What two gases together make up 99% of Earth's atmosphere?

Answers

Answer 1
Answer: The two gasses that make up 99% of the earth's atmosphere are nitrogen and oxygen. 
Hope that helped! =)
Answer 2
Answer: nitrogen, oxygen, water vapor, carbon dioxide,methane, nitrous oxide,

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What is the role of RNA polymerase?

Answers

Answer:

It helps transcribe the DNA strand.

Explanation:
Initiating transcription at specific DNA sequences known as promoters.

Look at the albino whale people have named Migaloo. The white color is the result of mutations in the genes that code for the proteins responsible for skin color. Is Migaloo's white color likely to be an advantage in its current environment? Explain your answer.

Answers

Answer:

Yes

Explanation:

If Migaloo is albino he mostlyly lives with snow and a lot of white in his souroundings. Since he is white and everything eles is white he can blend into he souroundings to hide from anything trying to attack/eat him.

Drosophila eye color is an X-linked trait. Red eye color is dominant, and white eye color is recessive. Which Punnett square shows the probability that 100 percent of offspring will have red eyes?

Answers

Only a Punnet square with one homogeneous dominant would produce 100% dominant trait offspring.

Answer:

c

Explanation:

edge2021

In which of the following locations is a shield volcano likely to form? At a hotspot Near a transform fault Along a divergent plate boundary Near diverging oceanic plate boundaries

Answers

"At a hotspot Near a transform" is the best option from the list in terms of where a shield volcano would be likely to form, but it should be noted that this is not always the case. 

Answer:

The correct answer is "At a hotspot".

Explanation:

A shield volcano is characterized by being comprised in its majority of lava flows. The flow usually is really slow and of low viscosity. Shield volcanos are formed at hotspot locations where magma comes from the bottom to the surface. The formation occurs by layers of magma coming up which later freezes and other layers of magma covering up, which consequently forms the volcano.

Tetracarbon Hexahyride is a ionic or a covalent bond

Answers

Tetracarbon Hexahyride is built using covalent bonds
Tetracarbon Hexahydride is a covalent bond. Covalent compounds are made up of a nonmetal and nonmetal. Their bonding involves the sharing of valence electrons that we do not need to consider the charge. We simply use prefixes like mono, di, tri.

Tetracarbon Hexahydride: Tetra: 4, Hexa: 6

I hope it helps, Regards.

Part of a tree that conveys information about past climates

Answers

answer id b. rings on ed
stem is the part of the tree that conveys information about past climate. stem develops rings as it responds to different climate changes. if one were to cut a tree's stem in half,it will most likely show a set of rings if the tree has lived for many different seasons. each rings can tell the the temperature that the tree withstood and also can indicate other climate factors like the humidity and cloudiness.
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