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
kaheart [24]
3 years ago
11

PLEASE HELPPP

Biology
2 answers:
Viktor [21]3 years ago
7 0
It’s a point mutation because it’s only one point being changed and there is no added bonds or any that were taken out.
Alina [70]3 years ago
4 0
What in the world class is this omg
You might be interested in
Number of chromosomes?
DerKrebs [107]
<h2>Hey There!</h2><h2>_____________________________________</h2><h2>Answer:</h2><h2>KAROTYPE:</h2>

This is the picture of karyotype. Karyotype is a collection of a Individuals chromosome. Like pairs are separately represented from the unlike pairs, It is generally used to study the chromosomes and the abnormalities found in the number of chromosomes.

<h2>_____________________________________</h2><h2>CHROMOSOMAL NUMBER 18:</h2>

Every chromosomal pair seems fine, except the chromosomal pair number 18. Because as you ca see that it has 3 chromosomes instead of 2. This impairment in the chromosomal pair is called trisomy as it has 3 chromosomes.

<h2>_____________________________________</h2><h3>TRISOMY 18:</h3>

Trisomy 18 is also called Edwards syndrome. It is a chromosomal condition associated with abnormalities in more than one part of the body. Individuals with trisomy 18 often mature slowly than normal fetus before birth and they have lower weight at the time of birth as compared to the other children.

<h2>_____________________________________</h2><h2>Best Regards!</h2><h2>'Borz'</h2>

4 0
3 years ago
Incubation refers to the time the disease is contracted and first sign of visible symptoms true or false ?
Ksenya-84 [330]
False incubation is when there is no symptoms but ur sick
4 0
3 years ago
Shell-builders use calcium carbonate molecules (CaCO3) to build their shells. Which of the choices above could be a source for t
Fudgin [204]

Answer:

The question is incomplete, the correct question is;

Shell-builders use calcium carbonate molecules (CaCO3) to build their shells. Which of the following choices could be a source for the carbon atoms in the calcium carbonate (CaCO3) molecules?

respiration by organisms such as plants, animals and microbes

burning coal

calcium ions

car exhaust

wildfires

Answer is all of the above options except calcium ions.

The source for the carbon atoms in the calcium carbonate (CaCO3) molecules include respiration by organisms such as plants, animals and microbes , burning coal , car exhaust  and wildfires.

Explanation:

Shell-builders (coral, oysters, lobsters, sea urchins, phytoplankton) utilize calcium carbonate molecules (CaCO3) to build their shells. The respiration process by organisms such as plants, animals and microbes, burning of fossil fuels, vehicle exhaust, wild fire etc produces carbon dioxide (CO2) and release it into the atmosphere. Oceans absorb carbon dioxide in the air by diffusing and dissolving it into the surface water. The amount of CO2 that dissolved in the water depends on concentrations of CO2, temperature of the water, wind, etc.

Phytoplanktons (microscopic, one-celled organisms) also bring carbon into the ocean from the air through photosynthesis, where they convert the carbon dioxide and water into glucose and other carbon compounds. These carbon compounds are consumed by the marine organisms and some carbon eventually ends up in deep seafloor sediments. The other processes which involved in the transfer of carbon from the air into deep seafloor sediments include photosynthesis , decomposition , waste products, etc.

The CO2 dissolved in the ocean combines with water molecules to produce carbonate (CO3-) ions, which then combine with calcium ions in the seawater to form calcium carbonate (CaCO3). This calcium carbonate is used by shell building organisms to build their shells, plates, inner skeletons etc.

8 0
3 years ago
Describe five advantages of artificial classification​
OleMash [197]

Answer:

there it is fella

i guess the hand writing is not that bad

6 0
2 years ago
The cell theory eventually replaced the concept of spontaneous generation as a result of what experimental evidence?
Arisa [49]

<u>Answer:-</u> <em>Option C </em>- evidence that microorganisms cannot grow in boiled broth when new organisms were not allowed to enter.

<u>Explanation:-</u>

  • <em>Theory of spontaneous generation</em> stated that the living organisms can be created from non living matter. However, this theory was disapproved and replaced by the <em>cell theory</em> which stated that all living organisms are created from cells and new cells arise from pre-existing cells.
  • There were several experiments conducted by various scientists to disapprove the theory of spontaneous generation however, the experiment that was most successful to do so was the one conducted by <em>Louis Pasteur</em> in 1859.
  • <em><u>Description of the experiment:-</u></em>

-In his experiment, Pasteur boiled a meat broth in a flask (it was known that boiling the broth kills the micro organisms) and then heated the neck of the flask to bend into a S- shape.

The purpose of the S shaped neck was to allow the air to enter into the flask but not the micro-organisms as the micro organisms will settle by gravity in the neck and not reach into the flask.

<em>observations of the experiment</em> :-

1. Pasteur observed that even though the air entered the flask no micro organisms were growing in the flask.

2. Further,when he tilted the flask so that the broth came in contact with the part of the neck where the air borne microorganisms could have settled he was able to observe microbial growth in the flask.

These observations laid the theory of spontaneous generation to rest and proved that <em>organisms can only grow in the presence of pre-existing cells </em>which in this case were the microorganisms.  

4 0
3 years ago
Other questions:
  • Which best describes how wedge basins form?
    10·2 answers
  • Which question could be answered using the scientific method? (1 point) Do red or orange flowers attract more butterflies? Do ro
    8·2 answers
  • Young babies' sleep–wake cycles are affected more by __________ than by __________.
    12·1 answer
  • What is the role of the serous membranes covering some organs?
    13·1 answer
  • Let’s assume that dragons show incomplete dominance for fire breathing. The F allele provides lots of fire and the F’ allele giv
    9·1 answer
  • Which of the following is the best description of the cane toad’s introduction to Australia?
    13·1 answer
  • Metamorphic rock formation from sedimentary rocks is caused by heat and pressure. After millions of years in transformation, the
    15·1 answer
  • A sedentary organism is one that can swim great distances in aquatic environments
    6·2 answers
  • A plane is traveling at 80 m/s. To prepare for landing, it decreases its speed to 50 m/s in 120 s.
    7·1 answer
  • a decline in birth rates could lead to an increase in the percentage of elderly people in a population. How might this impact a
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!