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zhannawk [14.2K]
3 years ago
12

What are chromosomes?

Biology
1 answer:
IgorLugansk [536]3 years ago
6 0
Chromosomes are a DNA molecule, that cannot be seen underneath a microscope. However, the DNA in chromosomes become pushed together during cell division, which then allows scientists to see its material under a microscope. 

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Match each hazardous waste with its matching description.
Sphinxa [80]

Matching each hazardous waste with its description is shown below :

<u>Hazardous waste                            description</u>

Asbestos : substance known to cause lung cancer; found in older landfills

Mercury : Substance found in computer monitors that causes brain damage

Cadmium: Hazardous cancer agent found in the batteries of many devices

Lead :  Substance from thermostats known to cause reproductive issues

Too much exposure to these hazardous waste always leave a negative effect on the health of individuals, Asbestos are used in the roofing of older buildings and can be found in older landfills. the fiber from asbestos affects the Lungs ( alveoli ) of humans which might lead to lung cancer.

Mercury are used for PC's backlight and also in the mother board of modern computers too much exposure to mercury can lead to brain damage.

Cadmium are hazardous cancer causing agent used in making industrial batteries, prolonged exposure to lead poses several health risk which includes reproductive issues because lead can cut across placenta barrier between a pregnant woman and unborn child.

Hence we can conclude that matching each waste to its description is as

Asbestos : substance known to cause lung cancer; found in older landfills

Mercury : Substance found in computer monitors that causes brain damage

Cadmium: Hazardous cancer agent found in the batteries of many devices

Lead :  Substance from thermostats known to cause reproductive issues

Learn more : brainly.com/question/2028075

8 0
3 years ago
Which scientist proved the existence of a virus as a new type of pathogen?
Readme [11.4K]

Answer:

Dmitri Ivanovsky

Explanation:

Dmitri Ivanovsky utilized one of these filters in 1892 to demonstrate that despite being filtered, sap from a diseased tobacco plant remained infectious to healthy tobacco plants. The filtered, infectious substance was dubbed a "virus" by Martinus Beijerinck, and this discovery is regarded as the origin of virology.

6 0
3 years ago
What is the most important property of water for protecting fish in a shallow pond on a hot summer day
noname [10]
Answer:  Low oxygen content.

Explanation:
There are many dangers to the survival of fish in shallow water that depend on the properties of water.
1. The oxygen content drops during the winter and also in hot weather. Fish cannot survive without enough oxygen in the water.
2. High evaporation rates can drain the pond.
3. Fortunately, water has a high thermal mass, so overheating the water to the boiling point is not an issue.

Of the three reasons given, lack of oxygen is the most critical.


3 0
3 years ago
When the body stops producing enough new blood cells, the risk for infections and uncontrolled bleeding increases. What is the d
KiRa [710]
Answer is aplastic anemia
6 0
3 years ago
Darwin’s theory of common descent states that all organisms _____.
Tema [17]
Evolved from past organisms hope this helps!!!!
6 0
3 years ago
Read 2 more answers
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