BIOLOGY HIGH SCHOOL

According to the Big Bang theory of the origin of the universe, the universe has expanded from a hot dense state into a vast, cooler state. What would be considered scientific evidence supporting this theory?A) Galaxies are moving toward each other.
B) Galaxies are moving away from each other.
C) Cosmic background X-ray radiation was detected in space.
D) The existence of common elements throughout the universe.

Answers

Answer 1
Answer:

The correct option is option B, Galaxies are moving away from each other

It was discovered by Edwin Hubble in 1920, that galaxies are moving away from each other in proportion to the distance between them. The greater the distance at which a galaxy  exists, the faster is the distance with which it is moving away. Hubble established the Hubble’s constant which establishes expansion rate which is also helpful in determining the age and size of the universe.

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Which kinds of cells are always single-celled?

Answers

Prokaryotes- bacteria, archae

Final answer:

The cells that are always single-celled are prokaryotic cells and include bacteria and archaea. These cells do not have a nucleus and are much simpler than eukaryotic cells, which can form multicellular organisms. However, some eukaryotic organisms like yeast and protozoa, can also remain single-celled during their entire lifecycle.

Explanation:

The kinds of cells that are always single-celled are called prokaryotic cells and include bacteria and archaea. These cells do not have a nucleus and are much simpler than eukaryotic cells, which can form multicellular organisms. Each prokaryotic cell functions independently, and despite their simplicity, they are extraordinarily diverse and adaptable, capable of surviving in an array of environments from Arctic ice to volcanic vents.

It's also worth noting that some eukaryotic organisms like yeast and protozoa while being more complex and having nuclei, can remain as single-celled organisms for their entire lifecycle.

Learn more about Single-celled organisms here:

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What word is used to describe knowledge about the universe and the method of obtaining that knowledge?

Answers

The correct answer is science. The word science is used to describe the knowledge about the universe and the method of obtaining that knowledge. Science is the organized enterprise in which builds the knowledge in terms of testable explanation and theories about all matters in this universe.

Which organ contributes to the homeostasis of riboflavin by removing the excess?

Answers

Each body structure from chemical to systemic level

What information does the atomic number of an element provide? A. the number of neutrons in one atom of the element B. the total number of protons and neutrons in one atom of the element C. the total number of electrons and neutrons in one atom of the element D. the number of protons in one atom of the element

Answers

The answer is 'D'. Atomic number of an atom shows its total number of protons.
The answer is a or d

The first step in restoring pine woodlands is prescribed burning.

t or f

Answers

I believe the answer is false.


Hope this helps! :)
I think it would be f

True or false? Ice sinks in water.

Answers

I disagree with that statement. I believe Ice floats in water. This is because material glides when it is light impenetrable or has lower size total or , volume.
False ice stays afloat in water
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