BIOLOGY MIDDLE SCHOOL

Substance that cannot be broken down chemically into other substance are

Answers

Answer 1
Answer: Pretty easy one, it is simply an element, because elements are the main 'starting points' of any other mixture, per say. This is because they are like building blocks - For example, H20, or water, is a combination of Oxygen and 2 hydrogen, which are all elements.

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Where on earth would physical weathering from temperature changes be most common? Least common?Explain.

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physical weathering from temperature changes is most common on the shorelines, because waves are able to take down rocks that have been weathers. They would be least noticeable inland, in desert areas with little forestation.

Explain how earth’s spheres rely on the water cycle

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Answer:

The answer is that water is continually restored through the Earth’s system through a process called the water cycle. The water cycle contains various processes that flow water through the Earth’s subsystems. Water dissolves from within soils and through vegetation and of bodies of water (such as rivers, lakes, and oceans).

A common protozoan that moves by cilia is the _____.
amoeba
paramecium
euglena

Answers

Answer:

paramecium is the correct answer.

Explanation:

A common protozoan that moves by cilia is the paramecium.

paramecia are the single-celled organism, they live in the aquatic habitats.

The whole body of the protozoan is covered by cilia.

Cilia is hair-like organelles that help the paramecium to swim in the water as they have streamlined structure.

The function of cilia in the life cycle of a protozoan is it help in locomotion and in food ingestion.
The answer is paramecium.

Which movement is not associated with the scapula?

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stabbing it into someone's arm

What is the egg's role in reproduction​

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Answer: Forming the embryo and providing DNA.

Explanation: The egg is a cell that is used to reproduce. It is the very beginning of what will become the embryo and eventually the baby. The sperm fertilizes the egg and contributes 50% of the embryo DNA to the ova (the other 50% of DNA comes from the egg, however sperm only contributes DNA to the egg during the fertilization process whereas the egg has a much more important role). The sperm and egg meet, the egg becomes fertilized and loaded with the DNA it needs to form. The egg provides nutrients needed for the embryo to grow until it is fully gestated.

Describe how wavelength , frequency, and energy are related.

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The energy is directly proportional to the frequency and inversely proportional to the wavelength.

The frequency is inversely proportional to the wavelength, so it follows that short wavelength are energetic than long wavelength.

What are frequency and wavelength ?

The term frequency refers to how  the particles vibrate, when a flow moves through a medium.

The total number of full vibrations per unit time is used to calculate frequency.

A wave have the frequency of 2000 vibrations per second and Hertz unit of measurement for frequency.

Wavelength is  defined as the difference between a crests and troughs of a wave.

The space between these crests or troughs in case of low-frequency wave is more than in a high-frequency wave.

The unit used to the unit of measurement of wavelength is nanometer.  

Learn more about frequency and wavelength , here:

brainly.com/question/18651058

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The greater the energy, the larger the frequency and the shorter the wavelength. Given the relationship between wavelength and frequency; the higher the frequency, the shorter the wavelength it follows that short wavelength are more energetic than long wavelength.
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