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
statuscvo [17]
3 years ago
9

There are _____ phyla or categories of fish. 2 3 4 5

Biology
2 answers:
GrogVix [38]3 years ago
8 0
There are four phyla or categories of fish, Hagfish, lampreys, cartilaginous and bonyfish.
lianna [129]3 years ago
3 0

Answer:

The correct answer is three.

Explanation:

A fish refers to a kind of species that possesses a backbone, and thrives in the water, and possesses fins. The majority of the fishes exhibit scales covering over their bodies and the majority of them breathe via gills. Fish form a very diverse group, that is, almost half of all the vertebrates are fish.  

The fishes are differentiated into three prime kinds, and they are differentiated on the basis of their skeletons and the structure of their mouths. These are cartilaginous fishes, jawless fishes, and the bony fishes. All the mentioned three types are ectotherms or cold-blooded. Of these, the jawless fishes were the most primitive vertebrates, the hagfishes and the lampreys are the only thriving jawless fishes known today.  

You might be interested in
Defend this statement: The sun is the driving force behind the water cycle.
polet [3.4K]
Well part of the water cycle is evaporation which come from heat which you get from the sun. When the water evaporates it goes into clouds so then it can rain.
Hope this Helps
8 0
3 years ago
When assessing temperature of the skin, which portion of your hand should be used?
yanalaym [24]
B.) Ulnar aspect of the hand
5 0
3 years ago
Which of the following is the most important in preventing the spread of
kirill115 [55]

Answer:

effective handwashing

Explanation:

6 0
2 years ago
Read 2 more answers
When the dry and wet bulb temperatures are far apart. the humidity is high.<br> True<br> False
MrMuchimi
The answer is false purrr
8 0
2 years ago
Help me pleaseeeee!!
DochEvi [55]

Answer:

POLLUTANT, SOURCE AND IMPACT

Carbon Monoxide

SOURCE:- carbon monoxide main sources are from our homes, eg; wood stoves and fire place, generators, gas stoves, kerosene heaters, leaking chimneys, tobacco smokes etc

IMPACT:- carbon monoxide can cause organ failure as it reduces the amount of oxygen the hemoglobin been carried in the red blood cells to this organs in our body.

Carbon dioxide

SOURCE:- carbon dioxide can be from both human and natural source. Example of the sources includes; natural source ( ocean release, decomposition and respiration), human activities ( burning of coal, oil and natural gas, cement production etc)

IMPACT:- carbon dioxide causes difficulties in breathing as it displaces oxygen in the air.

It also increase the greenhouse effect (global warming) as more heat energy gets trapped by the atmosphere causing the planet to become warmer.

Sulphur dioxide

SOURCE:- sulphur dioxide mainly occur due to human activities such as fossil fuel combustion at industrial facilities, in ships etc.

IMPACT:- Sulphur oxide has been linked to many health effect and diseases such as cardiovascular diseases. It also causes respiratory problems, asphlegm and asthma attacks, irritation of lungs, throat and nose as well.

Nitrogen oxides

SOURCES:- nitrogen oxides also comes from human activities such as; combustion of fossil fuel, making of nitric acid, refining metals as well as petrols, explosive, food manufacturing etc.

IMPACT:- Nitrogen oxides has also been linked to many respiratory health issues such as bronchitis and wheezing. It causes the lining of the lungs to inflame there by reduce the immunity of the lungs to respiratory diseases.

Methane

SOURCE:- methane can be from either natural or human activities. The natural source includes; food digestion by cattles, decay of organic materials. Human activities such as waste management, rice production, oil and gas production etc.

IMPACT:- Methane is considered a green house gas like carbon dioxide, it contributes to the trapping of heat energy in the atmosphere which causes global warming. It is also linked to serious health issues such cardiovascular, respiratory and neurological problems.

Particulates

SOURCE:- particulates are fine tiny particles of matter found in the air, it might be in solid or liquid form. Example; dust, smoke, fumes etc. This particles can suspended in the air for an extended periods of time.

IMPACT:- exposure to particulates can cause variety of respiratory health problems such as difficulties in breathing, coughing, lungs and heart problem etc.

7 0
2 years ago
Other questions:
  • The nucdlear DNA content of a single sperm cell varies depending on the species of the organism. If the amount of DNA in a singl
    10·1 answer
  • 8. This agency was implemented to develop regulations for a more efficient and safe national transportation system. It is in cha
    7·2 answers
  • Yang membeadakan antara RE halus dan RE Kasar
    7·1 answer
  • The ABO blood groups in humans are expressed as the IA, IB, and i alleles. The IA allele encodes the A blood group antigen, IB e
    13·1 answer
  • This characteristic allows organisms to blend in with their environment.
    15·1 answer
  • The movement of materials across the cell is known as
    13·1 answer
  • Which characteristic is present in marsupials but absent in reptiles?
    13·1 answer
  • A nurse is planning to provide instructions to the client about how to stand on crutches. in the instructions, the nurse plans t
    9·1 answer
  • How many parents are needed for Asexual Reproduction?
    12·2 answers
  • The best example of an animal phylum with enhanced overall surface area is _____.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!