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Dvinal [7]
4 years ago
14

Air pollution is a concern because it is both a local and____

Biology
1 answer:
Ugo [173]4 years ago
5 0

Answer: global problem

Explanation:

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Most of the exchange surfaces of multicellular animals are lined with _________.
QveST [7]

Most of the exchange surfaces of multicellular animals are lined with epithelial tissue.

Epithelial tissue is one of the four major body tissues found in organs, lining the internal and external surfaces of the body.

It has different structures and functions depending on where it is located on the body.

The epithelium is a type of body tissue that covers all the internal and external surfaces of the body, lines body cavities and hollow organs.

Epithelial tissue has various functions, such as protection, secretion, and absorption, depending on where it is located in the body. The body organs are made up of four basic types of tissue, including:

  • Epithelial tissue
  • Connective tissue
  • Muscular tissue
  • Nervous tissue

All substances entering or leaving an organ must first pass through the epithelium.

There are various types of epithelial tissue throughout the body. Some examples of epithelial tissues are:

  • The outer layer of skin (epidermis).
  • Intestinal mucosa.
  • Airway lining.
  • Inner wall of abdominal cavity.
  • Sweat glands

Learn more about Epithelial tissue here : brainly.com/question/17301113

#SPJ4

6 0
1 year ago
Define a biological community. explain why the study of community ecology is important
Marianna [84]
A biological community is a community with an interacting group of many species in a common area. They can be interdependent on each other. For example : Animals depend on plants for oxygen and the plants are dependent on animals for carbon dioxide ( necessary for photosynthesis ).
4 0
3 years ago
Which of the following statements about magnesium atoms is NOT correct? 1. All magnesium atoms have the same number of protons.
Fantom [35]

Answer:

5. All magnesium atoms have the same number of neutrons

Explanation:

Magnesium (Mg) is a chemical element. Its atomic number (Z) is 12 (number of protons in the nucleus of the Mg atom).

The Magnesium has three stable isotopes: 24Mg, 25Mg and 26Mg. All these isoforms have 12 protons in their atoms (same atomic number), however they  vary in the mass number of the atom (M).

The mass number of the atom (M) is equal to the sum of protons and neutrons in the nucleus.

Based on this information we can know how many neutrons each isotope has

24 Mg = 12 protones + 12 neutrons

25Mg = 12 protones + 13 neutrons

26Mg = 12 protones + 14 neutrons

In this way we conclude that <u>not all magnesium atoms have the same number of neutrons</u>

5 0
3 years ago
Explain how global warming can lead to the flooding of low lying areas?
jarptica [38.1K]

Answer:

When water warms up it expands. At the same time global warming causes polar ice sheets and glaciers to melt. The combination of these changes is causing sea levels to rise, resulting in flooding and erosion of coastal and low lying areas.

Explanation:

hope this helps

5 0
2 years ago
Read 2 more answers
How do proteins and fats provide energy for the human body?
pickupchik [31]
Fats are used for energy after they are broken into fatty acids. Protein can also be used for energy, but the first job is to help with making hormones, muscle, and other proteins. Broken down into glucose, used to supply energy to cells. Extra is stored in the liver.
3 0
3 years ago
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