BIOLOGY HIGH SCHOOL

Which type of pollution includes CFCs and smog? Air, land, water or volcanic

Answers

Answer 1
Answer: CFCs and smog are examples of air pollution.

CFCs (containing atoms of carbon, chlorine and fluorine)are a component of aerosols sprays, refrigerants etc. These chemical compounds are non reactive in the lower atmosphere but the CFCs react with UV radiation in the sunlight and release inorganic chlorine. This chlorine is the main cause of the holes present in the ozone shield (shield that protects us from harmful UV rays) in the polar regions.

Smog refers to the haze or fog that occurs as a result of air pollution (caused by burning of fossil fuels etc)
Answer 2
Answer:

Chlorofluorocarbons (CFC) and smogs are examples include of air pollutants. Details about pollution can be found below.

What is pollution?

Pollution is the release of toxic substances called pollutants into the environment, whether air, water and water.

Pollutants are of various sources and can be from varying sources as follows:

  • Air
  • Water
  • Land

Chlorofluorocarbons and smogs are examples include of air pollutants.

Learn more about pollution at: brainly.com/question/23857736

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how is the expression of sex linked genes both  similar to and different from the expression of autosomal genes?

Answers

Sex chromosomes contain genes that determine the sex of a person. Two X chromosomes result in a female and one X plus a Y result in a male.

In those chromosomes, there are genes specific for each gender, and in those chromosomes, there are genes that code for certain traits- the sex-linked traits.
These traits will be inherited according to the sex chromosomes they receive from their parents. Women recieve one X from the mother and the other from the father while  men recievethe X from the mother and the Y from the father).

This will cause a difference in the expression of genes because women can become carriers of a certain disease while men either manifest it or don't (there are no carriers since the X chromossome is different than the Y)

In autosomal genes, the expression doesn't depend on the gender since the autosomal chromosomes contain genes that code for the same trait, and so the expression on autosomal genes in men and women are similar.
first of all you are already known about the genes found in male and female Autosomal genes are not expressed by the X or Y chromosome. Sex linked genes are expressed by the X or Y chromosome. Expression of autosomal and sex-linked genes are the same in that both require undergo meiosis and crossing-over may occur and transcription and translation of genes are required.

Plant cells have a _____ while animal cells do not. A. plasma membrane B. nucleus C. cell wall

Answers

The answer is C. cell wall. Plant cells have a cell wall while animal cells do not. Plant cells' cell wall is mostly made of cellulose, which is a polysaccharide.
Plant cells have a cell wall, while animal cells do not. They both, however, have a plasma membrane and a nucleus.

Which of the following methods used to enumerate cells often requires specialized staining to observe non-pigmented bacteria?

Answers

Answer:

Microscopy

Explanation:

The outer layer of a cell that acts as a gatekeeper to a cell is the _____.

Answers

Answer:

The outer layer of a cell that acts as a gatekeeper to a cell is the Cell Membrane or Plasma Membrane.

The cell membrane made up of mostly phospholipids and proteins and is known as selectively permeable membrane as it allows the entry of some selective molecules into it.

The plasma membrane is the layer present between  the cell and its external  environment. As the gatekeeper takes care of entry, cell membrane also regulates the molecules that enters and exits the cell from external environment.

Cells membrane helps in maintaining appropriate amount of molecules to function inside them.

Hence, the correct option is Cell Membrane.
Got this right on my test. plasma membrane

Your teacher gives you a plant that does NOT have vascular tissue. However, it has a spore-producing capsule that opens by splitting lengthwise. What type of organism is it? Liverwort Fern Angiosperm Moss

Answers

Wait no i know what it is its the Liverwort. Yes its that.

Composites are made froma. layers of wood glued together in sheets
b. two or more plastics mixed together to make a new plastic
c. two or more materials mixed together that chemically mix into a new material
d. two or more materials mixed together to make a stronger material but the individual components remain visible

Answers

GREETINGS!

D is the answer

Explanation:

A composite is made by combining two or more other materials so they improve one another but keep distinct and separate identities in the final product. So a composite isn't a compound (where atoms or molecules bind together chemically to make something quite different), a mixture (where one material is blended into another), or a solution.

HOPE THIS HELPS!
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