Certain viruses have a unique reproductive strategy: they use RNA to create DNA by using
an enzyme called reverse transcriptase. HIV (human immunodeficiency virus) belongs to this class of viruses. What is this type of virus called?
Retrovirus
Reverse Virus
Lyric Virus
Lysogenic Virus
Answer:
HIV belongs to Retrovirus.
Which of the following occurs during
Prophase?
Answer: Nuclear envelope breaks down!
Answer:
During prophase, chromosomes condense and exit the nuclear envelope to align during metaphase. Anaphase follows metaphase, and is characterized by the separation of sister chromatids. Telophase is the final mitotic stage, during which the cell prepares for cytokinesis.
Explanation:
You're not supposed to give out the answer but thanks anyway
Which three types of electromagnetic waves have longer wavelengths than the waves that make up visible light?
radio waves, gamma rays, X-rays
gamma rays, infrared light, X-rays
microwaves, radio waves, infrared light
infrared light, ultraviolet light, microwaves
Answer:
Micro waves, radio waves, and infared light
Explanation:
The three types of electromagnetic waves that have longer wavelengths than the waves that make up visible light are microwaves, radio waves, infrared light.
What is electromagnetic wave?Electromagnetic waves are waves that are formed from oscillations of particles that are propagated Simultaneously through space and variations of electric and magnetic field intensity. Examples are radio waves,X rays, visible lights infrared, visible light.
Therefore, The three types of electromagnetic waves that have longer wavelengths than the waves that make up visible light are microwaves, radio waves, infrared light.
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7.
If an igneous rock cuts across a sedimentary rock, we know that the igneous
rock is
A. older than the sedimentary rock
B. younger than the sedimentary rock
C. the same age as the sedimentary rock
D. a minimum of 1.2 million years old
Please help me quick
Answer:
B. younger than the sedimentary rock.
Provide one reason that preventing fusion of multiple sperm with one egg in sea urchins has provided a survival advantage over evolutionary time
Answer:
To produce a healthy offspring.
Explanation:
To make a healthy offspring is the reason that is responsible for preventing fusion of multiple sperm with one egg in sea urchins because if more sperm are fused with one egg, faulty segregation of chromosomes occurs during cell division that leads to the production of nondiploid cells due to which no further development occurs. So by avoiding such type of faults in the cell, only one sperm will fuse with egg not multiple sperms.
That is one reason that preventing the fusion of multiple sperm with one egg in sea urchins has provided a survival advantage over evolutionary time to produce healthful offspring.
To make a healthful offspring is a purpose this is liable for stopping the fusion of more than one sperm with one egg in sea urchins due to the fact if greater sperm are fused with one egg, defective segregation of chromosomes happens for the duration of the molecular department that results in the manufacturing of nondiploid cells because of which no similar improvement happens. So through averting such sort of faults withinside the molecular, best one sperm will fuse with egg now no longer more than one sperms.
What are offspring?The making of the reproduction is a brand new organism produced through one or greater parents.
Thus it is clearly explained above.
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In what ways do humans affect the different trophic levels in ecosystems on Earth?
Answer:
Our results contrast with research conducted in protected areas that suggested human effects in the food web are primarily predator-mediated. Instead, human influence on vegetation may strengthen bottom-up predominance and weaken top-down trophic cascades in ecosystems.
Explanation:
Humans affect the different trophic levels in ecosystems on Earth through destroying it via activities such as habitat destruction, pollution etc.
What is Ecosystem?This refers to all the organisms and the physical environment with which they interact.
Humans have destroyed most of the trophic level through predator mediated activities but however have increased the producers through agricultural processes.
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plzzzzzz i need help it’s due soon!
what do both the liver and the pancreas do for the body besides for aid in the digestive process
Answer:
The liver digests food by producing bile to break down fats, removing toxins and breaking down and storing some vitamins and minerals.
In cats, long tails are dominant over short tails. Cross one heterozygous
long-tailed cat with a short-tailed cat.
What is the chance there will be a short-tailed cat born?
75
25
50
О
Answer:
I think the chance will be 50 for short tailed cat
What is a limiting factor and how can limiting factors limit the size of a
population?
A. A resource that is so scarce (in restricted quantity) that it limits the size of a
population is called a limiting factor. Any single resource can be a limiting factor
to a population size. For example, the amount of water available can affect the
number of plants that can grow in an area.
B. A resource that is so plentiful that it limits the size of a population is called a
limiting factor. Any single resource can be a limiting factor to a population size.
For example, the amount of water available can affect the number of plants that
can grow in an area.
Answer:
A. A resource that is so scarce (in restricted quantity) that it limits the size of a population is called a limiting factor. Any single resource can be a limiting factor to a population size. For example, the amount of water available can affect the number of plants that can grow in an area.
12 POINTS!!
explain how the nervous system is important to cellular respiration
Answer:
It provides the cells with oxygen
Describe how heat affects the state of matter of a substance.
Thank you!❤
Anyone know this? Not sure if my answer is right
Answer:
I'm sure you right.
C.) Photosynthesis.Explanation:
I checked the chemical equation as well as the diagram, and it looks accurate.
The chemical equation for photosynthesis is:
6CO2+6H2O → C6H12O6+6O2.
So your answer is correct.
In plants, photosynthesis is used to convert light energy from sunlight into chemical energy (glucose).
Carbon dioxide, water, and light are used to make glucose and oxygen.
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Good luck foe.
Lb
The steeper the river is, the slower the water moves.
Answer:
That Sounds about right...
Explanation:
God said so
Which characteristic of an element determines its placement in the periodic table? O A. number of protons O B. size O C. mass O D. number of neutrons
Answer:
it gonna be A. Number of protons
Explanation
Elements are placed in order on the periodic table based on their atomic number, how many protons they have.
Divergent plates move _________ from each other. This causes _______ to form as well as mid-ocean ridges.
What is the difference between natural selection and selective breeding? Then, give examples of natural selection and selective breeding?
Natural Selection is when traits are "naturally" selected for, because "survival of the fitttest." Example would be a species becoming bigger over time, because the smaller animals of that species were more likely to be eaten by predators. Natural selection is when the "best" trats are passed down due to chance
Selective breeding is if an outside forece (like a dog breeder) "chooses" a triat to be passed down. Example, instead of breeding a brown dog with a white dog, the breeder breeds two black dogs together in orer for the litter to all have black fur
The principles of probability can be used to
Answer:
predict the outcomes of genetic crosses.
Explanation:
ill give brainly please answer asap
Larvae of the Diamondback moth feed on cauliflower paleo Aunt Farmers commonly used pesticides to repel them all from the cauliflower plants the larvae of the Diamondback moth arnab resistant various types of pesticides which statement best describes how the larvae became resistant?
Answer:
Mutation.
Explanation:
Mutation is the factor that is responsible for the acquiring resistance of various pests against pesticides because in mutation the genetic makeup of the organism changes which has no effect of the chemicals applied on them. Repeated use of the same type of pesticides to control a specific pest can cause changes in the genetic makeup of a pest that leads to another form of pest which causes pesticide resistance in the new type of pest so we can say that mutation is the main cause of resistance in pests.
Read this Pulmonology Consult excerpt:On physical exam, the patient is alert. He takes occasional pauses when he says long sentences, but otherwise, he is not in any distress. He has an occasional cough during his exam. His skin is pink and dry, and his lips are moist. His heartbeat is regular in rate and rhythm, without a murmur. On lung examination, he has whispered pectoriloquy on the right side with decreased breath sounds. He does not have any retractions or nasal flaring noted. His liver and spleen are not large.According to the excerpt, what was found upon lung examination on the right side?A. "Whispered pectoriloquy" - a chest that protrudes like the keel of a ship when the patient whispersB. "Whispered pectoriloquy" - "speaking from the chest"; used as a means of finding masses in the lung. The whispered word is audible in areas where fluid or a mass is presentC. "Retractions" - reverberations in the chest when it is struckD. "Retractions" - a dull sound in the chest when it is struckE. "Whispered pectoriloquy" - a chest that is hollowed out when the patient whispers
Answer:
B. "Whispered pectoriloquy" - "speaking from the chest"; used as a means of finding masses in the lung. The whispered word is audible in areas where fluid or a mass is present
Explanation:
Auscultation in medicine, is the action of listening to sounds from the heart, lungs, or other organs, usually using a stethoscope, in order to perform medical diagnosis.
Auscultation is performed for the purposes of examining the circulatory and respiratory systems, as well as the alimentary canal. The procedure is best performed in a quiet examination room. A stethoscope is used to magnify internal sounds. Small changes in breath sounds are carefully observed in order to make a diagnosis.
Whispered pectoriloquy is used to detect vocal resonance. It is used as a means of finding masses (consolidations e.g. pus) in the lung and is performed by having the patient quietly whisper a word. If fluid or a mass is present, words that are whispered may be heard clearly.
Why is meiosis considered sexual reproduction?
Answer:
Meiosis is a type of cell division that reduces the number of chromosomes in the parent cell by half and produces four gamete cells. This process is required to produce egg and sperm cells for sexual reproduction.
Explanation:
God said so
For centuries, certain animals have been crossed to produce offspring with desirable qualities.
What technique is used to produce offspring with specific qualities?
Answer:
Learning the dominance of alleles
Explanation:
1) You are studying the uptake of a certain molecule into cells that produce no ATP. You discovered
that it in fact does become transported into the cell. To further your research, your colleague
decides to do the same experiment but supplies the cell with ATP. He discovers that the cell
transports more of the molecule intracellularly.
a. Describe the difference in transport between your experiment and his. Explain. (10pts)
b. What characteristics must this molecule have in order to use both types of transport?
(10pts)
Answer:
Your cell use passive transport whereas your colleague cell use active transport.
Explanation:
There is a great difference in the type of transport between your experiment and his because you provide no ATP to the cell for transport means you use passive transport in which the cell moves molecules without the use of energy while on the other hand, your colleague provides ATP to the cell means the cell transports molecules with the use of energy so the cell use active transport. The characteristics of molecules have the presence of both type of cells which do both type of transport.
The result of the Hershey-Chase experiment was that radioactivity could be detected inside the bacterial cells when they were infected by
bacteriophages marked with phosphorus-32.
What did the investigators conclude from this result?
A. Bacteriophages inject DNA into the bacterial cells.
B. Bacteriophages inject protein into the bacterial cells.
C. Bacteriophages inject carbohydrates into the bacterial cells.
D. Bacteriophage absorb DNA from bacterial cells.
Answer:
i belive that it is option a
Explanation:
Hershey and chase experiment proving that DNA is the genetic material. When the bacterial cells were infected with the P 32 and on entry on DNA it showed the entry of DNA in the cells.
What is the full form of DNA ?The full form of DNA is deoxyribonucleic acid where it is the deoxyribose sugar combined with nucleotides with the phosphorous group.
Bacteriophages are the species which only pass on their genetic material inside and in the experiment it followed the same protocols as well where the radiolabelled DNA with P 32 showed entry in the bacterial cells.
Therefore, bacteriophages are the showing radioactivity when the phosphorous combined with P 32 got mixed and expressed inside the DNA .
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WILLGIVE BRAINLIEST PLS HELP ME WITH THISS
1-8
Answer:
There is no picture
Explanation:
Answer:
where the questions
Explanation:
Why does life grow when the flask is broken? HOMEWORK DUE TODAY I REALLY NEED HELP
Body temperature, pH and blood pressure are ways that the body maintains what?
Answer:
Homeostasis refers to the body's ability to maintain a stable internal environment (regulating hormones, body temp., water balance
Explanation:
4. Why is systems thinking important?
Explanation:
When you use system thinking in management and operations, it helps you to make the right business decisions. Ultimately, the goal of thinking in systems is to help you avoid time, money and other resources.Photosynthesis takes in the __________ specifically in a green pigment called _________. In this process ______ gas is consumed along with ________ using __________ as an energy source; producing then a big molecule called ______________ and __________ gas as waste products.
Answer:
sunlight, chlorophyll,carbindioxide, water, sunlight, oxygen and glucose.
Answer:
sunlight, chlorophyll,carbindioxide, water, sunlight, oxygen and glucose.
Explanation:
Hope this helps
In bunnies long ears are dominant over short ears. If two heterozygous bunnies are crossed, what is the probability their offspring will have the long ear phenotype? 1. 25% 2. 50% 3. 75% 4. 100%
Answer: 75%
Explanation:
See my picture for my work. Use a punnett square.
Answer: 75%
Explanation:
Heterozygous means that one allele would be dominant, and the other would be recessive. I will use B for the dominant allele, and b for the recessive allele.
Next, create a Punnett square (look at the pic).
To make the Punnett square, draw a 2 × 2 table. Put Bb on the top (one over each column) and Bb on the left side (one next to each row). Cross multiply. Remember to always put the dominant allele (in this case, B) in front of the recessive allele (in this case, b). The dominant allele will always be exhibited in the organism. So, the answer is 75%, since 3/4 of the different combinations of alleles is long ears.