Answer:
C. producers, scavengers, primary consumers, tertiary consumers
Explanation:
Someone said B was wrong so this would be my second answer.
Which conclusion do the graphs support?
The question on the left show
Answer:
where is the picture of the graphs
Explanation:
In the open ocean, algae live only in the deep zone Please select the best answer from the choices provided ОТ OF
Help!!!
Answer:
Of is your answer
Explanation:
Answer:
False
Explanation:
name the four major groups in the plant kingdom and discuss the major evolutionary trends across the groups
Answer:
The kingdom Plantae consists of four major plant groups on land: bryophytes (mosses), pteridophytes (ferns), gymnosperms (cone-bearing plants), and angiosperms (flowering plants). Plants may be categorized as vascular or nonvascular. A vascular plant has tissues for transporting water or sap. Nonvascular plants do not.
what is a safe method to heat alcohol/methylated spirits?
Answer:
Explanation:
Boil a pot of water that has been tested with a stainless steel dish that sits adequately on top of the pot, without falling in. When the water boils, turn off the stove, which eliminates the ignition source, then pour your ethanol into the bowl, and place it on top of the hot water pot
Answer:
Boil a pot of water that has been tested with a stainless steel dish that sits adequately on top of the pot, without falling in. When the water boils, turn off the stove, which eliminates the ignition source, then pour your ethanol into the bowl, and place it on top of the hot water pot.
Explanation:
which is an example of a secondary energy source
Answer:
Explanation:
Secondary energy resources are those which do not occur naturally but which are obtained from one or more of the primary energy resources. Example: Petrol or gasoline, electrical energy from coal burning, hydrogen obtained by electrolysis of water etc. Non-commercial source of energy: Firewood, cow dung , and vegetable wastes.
The karyotype below depicts a mutation on chromosome #23. What type of mutation is this?
a
deletion
b
nondisjunction
c
down syndrome
d
translocation
Answer:
option B is correct.
non disjunction
Explanation:
there are three chromosomes in 23rd pair. it is a type of mutation called non disjunction.
Answer:
The correct answer is non disjunction
Explanation:
Non-disjunction refers to the chromosomes failing to separate correctly, resulting in gametes with one extra, or one missing, chromosome.
Hope this helped
Which one help please
Answer:
It is the centriole, the centromere is the attachment point on the chromosome and cytokinesis is a stage in mitosis
Explanation:
For example, a friend of yours goes to the gym and takes a 30-minute, cardio interval training class. While switching between doing high-intensity push-ups, jumping jacks, and weight training, she notices that there is a burning sensation in her muscles. The burning is due to the buildup oflactate in the muscle tissue, a result of her muscles supplying ATPanaerobically . What is true about this pathway for forming ATP
Answer:
No oxygen is required.
Explanation:
This pathway for forming ATP needs no oxygen and the ATP that is produced are in very low concentration. The low amount of ATP production occurs when the cell goes for anaerobic respiration in which the cell produces less ATP. This type of ATP production occurs only when the body requires ATP quickly so that's why the body uses this type of respiration during exercise and running activities etc.
A geneticist is trying to recreate a strand of DNA from a crime scene investigation. The strand of DNA recovered from the scene was 1800 bases long. The geneticist has determined that the strand contained 425 thymine
nucleotides. Based on this information, identify the number of cytosine nucleotides
Answer:
475
Explanation:
The strand is only made up of Adenine, Thymine, Cytosine and Guanine. There will be the same number of Adenine as there are Thymine and the same number of Cytosine as there are Guanine.
We know there are 425 Thymine. This means there are also 425 Adenine. Therefore, you would subtract 850 (425x2) from 1800 to find the amount of Cytosine and Guanine left, which is 950.
Out of the 950, half will be Cytosine and half Guanine. 950/2 is 475.
A forensics expert has obtained a sample of human blood from a crime scene. How can DNA fingerprinting be useful for identifying the person who left
the blood at the crime scene?
A by identifying the sequence of nucleotides in the DNA of blood cells
B. by comparing DNA from the blood cells with DNA from suspects
C. by identifying certain genetically controlled traits of suspects, such as eye shape and blood type
D. by comparing karyotypes made from blood cells at the crime scene and blood cells from suspects
Answer:
B - by comparing DNA from the blood cells with DNA from suspects!
Explanation:
DNA fingerprinting is a laboratory technique used to establish a link between biological evidence and a suspect in a criminal investigation.
A DNA sample taken from a crime scene is compared with a DNA sample from a suspect.
If the two DNA profiles are a match, then the evidence came from that suspect. (from www.genome.gov )
Hope this helps! :]
A forensics expert has obtained a sample of human blood from a crime scene, DNA fingerprinting may be useful by comparing DNA from the blood cells with DNA from suspects, which is option B.
What is DNA fingerprinting?DNA fingerprinting is a technique used to identify individuals based on their unique DNA profiles, and by analyzing the sequence of nucleotides in an individual's DNA, forensic scientists can create a DNA profile that is unique to that individual. So to identify the person who left the blood at the crime scene, forensic scientists would analyze the DNA in the blood sample and create a DNA profile, and then find out the criminal based on the DNA fingerprinting.
Hence, DNA fingerprinting may be useful by comparing DNA from the blood cells with DNA from suspects, which is option B.
Learn more about DNA fingerprinting here.
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During sexual reproduction, the offspring inherit their traits from __________. both parents themselves the father the mother
Answer:
Both parents
Explanation:
Punnett squares will show that for each trait (eye color, hair color, hair type, etc.) there are at least 3 different options (for a 2x2 Punnett square). I've also seen 4x4 Punnett squares where two traits are used.
What advantage does fruit provide for the seeds inside?
A)
The fruit protect the seed from water.
B)
The fruit provides the seeds the nutrition they need to grow.
The fruit makes the seeds less appealing to animals and prevents them
from being eaten.
D)
The fruit makes the seeds appealing to the animals who disperse the seeds
in their waste
Answer:
b
Explanation:
PLZ HELPPPPPPPPPPPPPPPPPP
Answer:
the answer is the third one
I’ll mark brainiest if your right need ASAP
Answer:
D: Bb
Explanation:
Answer:
bb
Explanation:
Bro, I can't explain because anything I say says that it contains a link
actually I don't even look this up bc I already learned this so my bad
How do the body systems interact with each other?
Answer:
Your circulatory system carries oxygen, water, and nutrients to cells throughout your body. Wastes from the cells are eliminated by your respiratory system, your excretory system, and your skin. Your nervous system controls all these activities with electrical impulses.
Under which of these conditions would scientists use the polymerase chain reaction (PCR) before they analyze a DNA sample?
A
The DNA sample comes from a bacterium or virus,
B. The DNA sample has been cut into fragments by restriction enzymes.
COnly a small amount of the DNA sample is available,
D.
The DNA sample includes regions that are transcribed into mRNA,
Answer: C
Explanation:
A specific DNA segment is amplified via PCR from a complicated combination of starting material, commonly referred to as template DNA, hence option C is correct.
What is the polymerase chain reaction (PCR)?The reaction's simplicity and the relative case of the practical manipulation procedures are what's behind it. The reaction needs some knowledge of the flanking DNA fragment's sequence in order to be amplified.
Taq polymerase is the name of the heat-tolerant bacterium from which the DNA polymerase normally used in PCR was derived (Thermus aquaticus). T. aquaticus resides in hydrothermal vents and hot springs.
The primers are used in accordance with the sample or target DNA. The procedure, which entails numerous cycles in which copies are created, likewise uses DNA and Taq polymerase.
Therefore, the three fundamental phases are "denaturation," "annealing," and "extension."
Learn more about PCR, here:
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Diverse mammals developed and began to flourish in the Cenozoic era . Which of the following also began to develop and flourish during this time ?
Answer:
B. First Bacteria
Explanation:
advantages and dis advantages of asexual reproduction in plants
Explanation:
Advantages Of the asexual reproduction
The organism that reproduces asexually has the ability to take many different extensive forms that allow asexual reproduction to succeed in various environments?
The asexual reproduction is only performed in the organisms that often stay in one place, It does not need mobility, So, most plants have a great ability to create their offspring as this process doesn’t need to move to another place.
Asexual reproduction has a rapid increase of offspring which is very helpful in producing lots of offspring, It lets the plants make lots of offspring effectively which will help them in increasing their genes.
Disadvantages Of Asexual Reproduction
Most organisms that only perform the asexual reproduction process have less chance to adapt to the changes of the environment as they need stable environments.
Only one parent plant is required for the asexual reproduction, the new plants are identical to the parent so that good features will always be passed on, the chromosomes and genes of the parent will be copied, So, there will be genetic defects or the mutation in the offspring with no exception.
The asexual reproduction does not have the genetic diversity, there is less variation produced with the offspring, and the organism becomes less adapted to certain environmental changes, the entire communities will not be adapted to the harsh environment.
The asexual reproduction usually leads to struggle for the existence as well as the overcrowding, and the main distinction of asexual reproduction from the sexual reproduction is that there is no need for two parents as well as special cells to reproduce.
The San Andreas fault is an example of which kind of boundary? A. Transform B. divergent C. oceanic D. convergent
Answer:
C
Explanation:
It’s near the ocean
what is Refrigeration in food preservation
Answer:
Refrigeration in Food Preservation and Processing ... The aim of all food preservation methods is to slow down processes that cause deterioration of quality and wholesomeness. Refrigeration applications are equipment that transfers heat from the product or enclosure (refrigerated cabinet or room) to the colder refrigerant.
Answer:
The aim of all food preservation methods is to slow down processes that cause deterioration of quality and wholesomeness. Refrigeration applications are equipment that transfers heat from the product or enclosure (refrigerated cabinet or room) to the colder refrigerant
Explanation:
Which best describes the role of photosynthesis in the carbon cycle?
to break down food into carbon and oxygen atoms
to create food by combining carbon, oxygen, and hydrogen atoms
to release compounds containing carbon into the atmosphere
to aid in the production of carbon dioxide
Zoom
Answer:
to release compounds containing carbon into the atmosphere
Explanation:
What kinds of diseases can vaccinations prevent?
genetic diseases only
bacterial diseases only
viral diseases only
any infectious disease
Any infectious disease (genetic, bacterial, and viral) can be prevented by vaccinations. Therefore, option D is correct.
Vaccinations are primarily designed to stimulate the immune system and provide protection against specific pathogens that cause diseases. They work by introducing harmless components of the pathogen, such as inactivated or weakened viruses or bacteria, or their components (antigens), into the body.
This exposure allows the immune system to recognize and mount an immune response against the pathogen without causing the actual disease.
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What is the source of energy behind the carbon cycle?
4
O decomposition
sun
O combustion
O consumers
Answer:
B. Sun.
Explanation:
The carbon cycle can be defined as the cycle in which carbon atoms travel from the atmosphere to earth and back to the atmosphere. As carbon is the source through which all life on earth exists.
The source of the carbon cycle is solar energy. During the process of photosynthesis, it is the sun that plays an integral role in taking carbon dioxide from plants.
Therefore, option B is the correct answer.
AUG is the start codon, and UAG, UGA, and UAA are the possible stop codons.
The code on a human mRNA reads AUGCCCUUUAUGGGGUAA.
ges
Which statements are true about this sequence?
Select all that apply.
Protein synthesis cannot start because there is no start codon.
The protein will have only four amino acids.
Two methionine amino acids will be in the protein chain.
The protein will have five amino acids.
Answer:
The correct answer is -
Two methionine amino acids will be in the protein chain.
The protein will have five amino acids.
Explanation:
In protein synthesis, there are mRNA codons made up of the three bases known as triplet codons that form a specific amino acid during translation. There is a specific codon known as the starting codon that is AUG present at the beginning of almost every protein sequence and code for the methionine amino acid. UAG, UGA, and UAA are the stop codons if present at the end of the mRNA sequence and if any of these stop codons are present at the end of the sequence they do not produce any amino acid.
In this case, the mRNA sequence having 6 triplet codons AUG CCC UUU AUG GGG UAA where the first AUG is a start codon and code for the methionine and UAA is a stop codon and do not code for any amino acid therefore, the protein would carry only 5 amino acid and as there are two AUG so it has two methionine.
Answer:
Two methionine amino acids will be in the protein chain.
The protein will have five amino acids.
Explanation:
just took test
what is the probability that a mother with type O blood and a father with type AB blood will have a child with type B blood
Answer:
So, without being given any more information (like that another child is already A, B, or O) then there are 16 possible combinations that can be had, but only one of them is type O, so there’s a 6.25% chance the child could be O.
:
All of the following are properties of a population EXCEPT*
Dispersion
Destiny
Density
Size
Please help ASAP! You can answer as much as you can but I need all the answers! Please and thank you have a great and blessed day!
Answer:
1) I don't know what option "B" is but with whats given the answer is D
2) For this one I can't see what option "D" is but with whats given the answer is C
3) I can't see what option "B" is but with whats given the answer is D
4) I can't see option "D" but out of those the answer is B
What are the main factors that affect an ocean current?
geographical features
Wind caused by unequal heating of the earth
none of the choices
Coriolis effect
Answer:
wind causes by unequal heating of the earth
Explanation:
Because,ocean currents are driven by wind, water density differences and tides.Oceanic currents discribe the movement of water from one location to another.
Hope it helps...
what are the method of beekeeping
Answer:
The ultimate aim of bee keeping is to get more and more honey in pure form. The old method commonly used by old apiculture is very crude, cruel and of unplanned type. This old method is called as Indigenous method.
Water moves from low to high concentration or high to low?
Answer:
When water moves from low concentrations of solute to high concentrations of solute, it moves from high concentrations of water to low concentrations of water.