BIOLOGY MIDDLE SCHOOL

(06.03 MC) Which description explains why there are two high and two low tides in a day? Earth rotates in and out of a tidal bulge twice a day. Earth revolves around the tidal bulges created by gravitational forces. Earth moves closer to the sun and moon twice a day. The moon's gravity increases over the oceans and decreases over the land.

Answers

Answer 1
Answer:

Answer:

its A

Explanation:
Answer 2
Answer:

Answer: the answer is A

Explanation:

i took the quiz

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What is the mutation caused by the addition of a nucleotide to an already existing gene sequence called?

Answers

Insertion is a type of mutation which adds nucleotide to an already existing gene sequence. It can lead to genetic disorders due to the change of gene sequence. An example of this genetic disorder is the trisomy 21 or commonly known as Down syndrome. Instead of having 46 cells, those people having this disorder have 47 cells because there is an extra copy of there gene 21.

Answer:

it is C. Insertion

Explanation:

i took the test and got a 100%

Does frog have lip and do they have teeth if they do what is the teeth called

Answers

They Don't Have Lips Like We Do But They Have A Formation Of Them Around The edges of their Mouth 

Yes Frogs Have Teeth On The Upper Edges Of There Jaws Witch Are Called Maxillary Teeth And Vomerine Teeth At The Roof Of There Mouth 

3. Most organisms benefit from trees because they produce what as a resultof photosynthesis?

A. oxygen
B. carbon
C. nitrogen
D. carbon dioxide

Answers

Answer:

B. Oxygen

Explanation:

Answer:

A. Oxygen

Explanation:

During photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds.

Hope it helps :)

Fossil fuels such as coal,oil and gas are burned during this cycle

Answers

Answer:

Carbon cycle

Explanation:

Why can't plants and animals use the nitrogen directly from the atmosphere?Answer
A.There is not enough of it in the air.
B.Nitrogen gas contains the element in an inert, unusable state.
C.They do use it directly from the atmosphere.
D.Plants and animals do not need nitrogen for their life processes.

Answers

The answer is C, because of the nitrogen cycle.
I would think it is B...

You need to use the scientific method and
In order to work as an environmental scientist.

Answers

Answer:

You need to use the scientific method and knowledge of the environment in order to work as an environmental scientist.

Explanation:

An environmental scientist should have an excellent knowledge about the systems of the environments and scientific methods. If a scientist is thorough about his understandings of the environment, he will be able to recognize any changes in the environment immediately and formulate the necessary reasons for the changes by using the scientific method of research. By using the scientific method of research, a scientist is able to learn about the various phenomenon occurring in the environment.

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