BIOLOGY MIDDLE SCHOOL

Check all the characteristics below that describe elements. one type of atom a pure substance more than one type of atom chemically combined elements

Answers

Answer 1
Answer:

The characteristics that describe elements are:

  • One type of atom.
  • A pure substance.

What is an element?

A chemical element is called a substance that is made up of atoms of the same type whose nuclei show the same number of protons.

Characteristics of an element

  • It is always presented as atoms of the same and unique type and that, therefore, cannot be decomposed into simple substances using chemical reactions.

  • Each chemical element has different amounts of the isotopes that make it up.

Therefore, we can conclude that elements are atoms that have the same number of protons in their nucleus.

Learn more about characteristics of an element here: brainly.com/question/1600427
Answer 2
Answer:

Answer:

The correct options are:

  • one type of atom
  • pure substance

Explanation:

An element can be described as a substance having the same number of protons in its nucleus. It cannot be broken down further in a chemical reaction. It is made up of one type of atom and is a pure substance. For example, the atomic number of oxygen is 8. Hence,  the element, oxygen, has   8 protons.

In total, there have been 118 elements that have been discovered and places in the periodic table.

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A true-breeding plant with yellow seeds is bred with a true-breeding plant with green seeds. What color seeds will the offspring produce where yellow is the dominant seed color?A. all yellow B. all green C. three-fourths yellow and one-fourth green D. three-fourths green and one-fourth yellow
Why are all the different parts of the cell necessary
Bald eagles are predators that eat small prey. What characteristics or traits of the bald eagle lead to this conclusion?
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Many trees shed their leaves during the autumn months when conditions are not suitable for photosynthesis. Which characteristic of living things is BEST represented when a tree sheds it leaves during the autumn?A)metabolismB)reproductionC)use of a genetic codeD)response to external stimuli

Why are viruses considered to be non living

Answers

Because living things require to be made up of cells, make their own energy, grow, and keep themselves stable. Viruses don't have any of these qualities.

Look at the scientific names for the two organisms below: Felis domesticus
Felis bengalensis

What can you tell about these two organisms from their scientific names?

A. You cannot tell anything about an organism from its scientific name alone.
B. The organisms are different subgroups of the same species.
C. The organisms are different species, but belong to the same genus.
D. The organisms belong to the same kingdom but different phyla.

Answers

Answer:

I would say C

Explanation:

Because The genus is the first name and the spiecies is the second name

hope this helps :)

Answer:C. The organisms are different species, but belong to the same genus.

Explanation:

Describe the ancient recipe for creating life

Answers

Dirty Garment and west in a vessel

Which of the following BEST describes the hydrosphere A. Bodies of water on the surface of earth, but not the water in the atmosphere or underground.

B. Salt water in the oceans, but not fresh water

C. Water that is underground or mixed into the hemisphere

D. Water in any location on Earth, including the atmosphere, surface, and underground

Answers

The best options that describe hydrosphere in the given options is Water in any location on Earth, including the atmosphere, surface, and underground

  • Hydrosphere can be regarded as one of the main sphere of the earth.

  • Hydrosphere can be regarded as the total amount of water that exist on the surface of the planet, these can include Water in any location on Earth, as well as the atmosphere and surface, and the underground even in the air.

Therefore, Hydrosphere regarded as the total amount of water on the planet

Learn more at : brainly.com/question/1155156?referrer=searchResults
The answer would be D.

What did Robert Hooke create and what impacts did he make on the cell theory?!

Answers

Answer:

He named the "cell", the "cell" because they reminded him of the bare wall rooms where monks lived. These rooms were called cells.

Explanation:

What is the difference between an eco region and an ecosystem?

Answers

Both biome and ecoregion are ecological terms. Biome refers to a major regional group of plant and animal communities adapted to the natural environment. Biome can be of two types: terrestrial(land) andaquatic(water). Ecoregion, which is an abbreviated form of ''ecological region', refers to a smaller class. Each biome consists of severalecoregions, an ecoregion(also called bioregion) covering a realm of land/water having geographically distinctive communities, sharing the same envoronmental conditions and ecological dynamics.

Yes, an ecoregion does consist of different ecologically distinctive communities and species.
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