1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
jolli1 [7]
3 years ago
7

The "fingerprint" found on the outside of cells is the best underlying explanation for:

Biology
1 answer:
Pepsi [2]3 years ago
5 0
Why you can't catch HIV by casual contact. Hopes this helps!! :D
You might be interested in
Mitosis is best described as:
anzhelika [568]

Answer:

A

Explanation:

the first one

4 0
2 years ago
What type of molecules will create a solution when mixed with water
marta [7]

Answer:

soluble molecules

Explanation:

Soluble molecules dissolve completely when mixed with water, hence forming a solution

7 0
3 years ago
Read 2 more answers
What tissue contains large amounts of fluid and transports nutrients wastes and gases?
Elza [17]

Blood is the connective tissue that contains large amounts of fluid and transports nutrients wastes and gases.

Blood is considered a connective tissue as it has the same origin as other connective tissues like cartilage and bone cells. Blood also connects the whole body together and transports the needed oxygen, hormones, other nutrients and blood throughout the body and also expels out wastes.

4 0
3 years ago
Effects of pollution might includea. inability to see the top of skyscrapers because of the smog.b. acid rain-induced destructio
poizon [28]

Answer:

e. all of these answers

Explanation:

Air pollution in addition to affecting people, animals, plants and goods, causes other problems related to the changes that occur in its composition, such as: climate change, acid rain and the destruction of the ozone layer phenomena that affect the planet globally and that it is necessary to stop urgently by taking the necessary measures.

Main effects of pollution:

- Effects on human health : It is difficult to determine the exact relationships between exposure to air pollution and diseases developed in humans, especially in the long term, they are not known exactly, but there is evidence that high concentrations of pollutants in the atmosphere are a danger for the human being.  it can also act as a vector to spread diseases

- Effects on the environment :

It is in the natural environment where the first signs of the harmful effects of air pollution were seen, plants and vegetation act as an indicator in this regard.

Some of the most common contaminants :

SO2 ; O3 ; Fluorides ;  HCL; Cl2; NO2

- Effect on materials :

Contaminants can affect materials by particle deposition or abrasion and also by chemical reactions between the contaminant and the material. For example : stone, iron and paintings

- SMOG:

SMOG is known as fog-type pollution that occurs in some cities when the combination of certain factors occurs, depending on weather conditions and certain pollutants.

Some of them are:

Industrial smog

Photochemical smog

This phenomenon (SMOG) occurs when the mixture of nitrogen oxides and volatile hydrocarbons emitted by cars and industries and atmospheric oxygen react with solar radiation and form ozone.

- Acid deposition.

It is a regional effect. It results from the transformation of atmospheric pollutants such as sulfur dioxide (SO2) and nitrogen oxides (NOx) into secondary pollutants such as sulfuric acid (H2SO4), ammonium nitrate (NH4NO3) and nitric acid (HNO3).

Therefore, air pollution caused by SOx and NOx affects water, soil and ecosystems.

- Water contamination

Pollution of the waters of a sick river and kill fish, but not only these, but all forms of aquatic life .

Pesticides and other toxic chemicals that are used in the domestic environment, farms and industrial production, and that are dumped into the water, cause fish death.

3 0
3 years ago
A dog's nose is____ to the dog ears? a.rostral b'.cranial c.caudal. d.distal
Vikentia [17]
A - rostral and cranial are very similar but rostral are for head structures 

HOPE I COULD HELP!!! C:
4 0
3 years ago
Other questions:
  • An individual with (naturally) curly hair and an individual with (naturally) straight hair mate; all of their offspring have (na
    15·1 answer
  • Which type of pathogenic microbe causes AIDS?
    5·2 answers
  • Help help help help ​
    8·1 answer
  • How did rosalind franklin contribute to determining the structure of dna?
    5·1 answer
  • Which is true about scientific knowledge?
    12·2 answers
  • A teacher brings 3 gallons of juice on a field trip. There are 36 students on the trip.
    5·1 answer
  • State what is meant by the term metabolic.
    15·1 answer
  • Which muscle is highlighted below? ​
    15·2 answers
  • HELP ASAP !!!!! I WILL GIVE POINTS. Complete the following sentence.
    5·1 answer
  • The oak tree fungal pathogen, Phytophthora ramorum, has migrated 800 kilometers in 15 years. West Nile virus spread from New Yor
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!