Answer:
I believe the answer is B
Explanation:
If a pure-bred tall plant is crossed with a pure-bred short plant, the offspring will be:
a. Either tall or short
b. All offspring will be medium sized.
c. Some offspring will be tall, some will be short and some will be medium sized.
DNA and RNA differ in the following way(s):
1. DNA has a phosphate and RNA does not
2. DNA and RNA have different 5 carbon sugars
3. DNA and RNA have the same nucleotides
4. Both A and C
Answer:
2
Explanation:
RNA contains the sugar ribose, while DNA contains the slightly different sugar deoxyribose
Which of the following stages of photosynthesis involves carbon fixation, reduction reactions, and the ribulose 1,5-bisphosphate regeneration? Olight-dependent reaction first stage photosynthesis Olight-independent reaction O photoreduction
Answer:C4 carbon fixation: A form of photosynthesis in which plants concentrate CO2 ... Calvin cycle is organized into three basic stages: fixation, reduction, and regeneration. ... In fixation, the first stage of the Calvin cycle, light-independent reactions are ... the reaction between carbon dioxide and RuBP; ribulose bisphosphate: an ...
Explanation:
Answer:
c4 carbon fixiation
Explanation:
How are birds different from reptiles?
a.they are endothermic
b.they are heterotrophic
c.they have a backbone
d.they breathe with lungs
Explanation:
The correct answer is A
Determine the temperature of the bar on the fahrenheit scale.
Answer:
Determining bar temperature on Fahrenheit scale -
The temperature of the bar is given as 50 degrees Celsius.
If we know the temperature on the Celsius scale, we can convert it to the Fahrenheit scale.
We know
C / 5 = (F-32) / 9; Where C is the temperature on the Celsius scale and F is the temperature on the Fahrenheit scale.
Now,
50/5 = (F-32) / 9
Or, (F-32) / 9 = 10
Or, F-32 = 90
Or, F = 90 + 32
Or, F = 112 degrees Fahrenheit.
That is, the temperature of the bar on the Fahrenheit scale is 112 degrees Fahrenheit
Explanation:
When the concentration of molecules on both sides of a membrane is the same, the molecules will
Fill in the missing mRNA bases sequence that corresponds to the DNA base sequence - CAC GTG GAC TGA
Fill in the missing amino acid sequence that corresponds to the DNA base sequence CAC GTG GAC TGA
Answer:
mRNA: GUG CAC CUG ACU
amino acids: VAL HIS LEU THR
Explanation:
The missing RNA base sequence to the DNA base sequence: CAC GTG GAC TGA is GUG CAC CUG ACU respectively.
The missing amino acids to the DNA base sequence CAC GTG GAC TGA is VAL HIS LEU THR respectively.
What are amino acids?Amino acids are organic compounds made up of amino and carboxylic groups.
Amino acids are the primary building blocks of protein.
There are 20 amino acids are present.
Thus, The missing RNA base sequence to the DNA base sequence: CAC GTG GAC TGA is GUG CAC CUG ACU respectively.
The missing amino acids to the DNA base sequence CAC GTG GAC TGA is VAL HIS LEU THR respectively.
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During winter's freezing temperatures, some plants can remove water from their cells to reduce the amount of water that will freeze inside them. Why would plants need to do this
Answer:
The expansion of excess water as it turns to ice inside the cells would break the cells apart
Explanation:
We know that water expands anomalously. It expands between 4- 0°C.
Hence water expands upon freezing. Ice has more volume than liquid water and takes up more space in plant cells.
The expansion of excess water as it turns to ice inside the cells would break the cells apart
People spray pesticides on crops to kill insects that eat and destroy the crops. However, these insects are becoming resistant to the pesticides. Explain how this could happen.
When an organism or insect develops a mechanism for the removal of the pesticide compound is known as pesticide resistance.
What is pesticide resistance?The organism or insects develop mechanisms such as the alternation of the binding site of the compound present in the pesticide leading to the development of resistance against the used pesticides. The development of resistance against the pesticide is a slow process, it takes time. The usage of pesticides becomes a failure if organisms develop resistance.
The frequent use of pesticide and insecticides cause changes in the genetic material of the organisms. They help in the development of enzymes and changes in the binding sites. These changes are passed on to the next generation of the organism, which makes the entire population resistant to the particular pesticide and insecticide.
The use of the chemicals should be monitored. Only use when required with rotation.
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what is biotechnology
Answer:
Biotechnology is a broad area of biology, involving the use of living systems and organisms to develop or make products. Depending on the tools and applications, it often overlaps with related scientific fields
What is a hypothesis?
O A. A unifying model or explanation based on a large body of
experimental data
B. A guess or prediction based on previous experience or
observation
O C. A statement of fact that describes an action or set of events
O D. A statement that cannot be tested scientifically
Answer:
B
Explanation:
Answer: B: A guess or prediction based on previous experience or observation.
QUICK HELP!!!
____ living cells can be the trigger for cancers.What is the missing word in this sentence?
Virus.
Sorry, if anything is wrong
PLZ HELP IM TAKING MY EXAM!! which of the following best explains the impact of mrna being double stranded before translation
Answer:
Impact of double-stranded mRNA before translation would inhibit the binding of tRNA to mRNA ti synthesize protein.
Explanation:
The mRNA is a molecule that, with the exception of viruses with double-stranded RNA, has only one chain. It is in charge of conducting to the ribosomes the sequence of nucleotides that makes possible the translation and the synthesis of proteins.
Once the ribosome translates the information of each codon of the mRNA, a transfer RNA (tRNA) molecule, with a complementary anticodon, provides the amino acid corresponding to the translated codon.
If the mRNA were double-stranded, the translation process would be altered, since binding of the tRNA with the amino acid it carries and mRNA codon would not be possible, as well as the protein synthesis.
A magazine published an article stating that drinking water obtained from waste water is harmful for health. Why is this information most likely to be incorrect? The article does not provide a scientific basis for the information magazines do not generally publish reliable scientific information drinking water has been obtained from recycled waste water since many years scientific tests show that drinking water obtained from waste water is pure and safe
Answer:
The correct answer is - the article does not provide a scientific basis for the information
Explanation:
Generally, Magazines publish articles with reliable information and sources that are universally accepted or have a scientific basis behind the information. It is already known that wastewater is recycled and purified before making it available for drinking.
In this article, there is no scientific basis behind the information as no scientific data mentioned or ignore test and practice in use from the years which is scientifically tested.
Which organelle is found in plant cells only? A.7 B.1 C.3 D.6
Please answer this MCQ fast I am in trouble...... God have mercy on you and me.
Answer:
I'm thinking its either c or b.
Explanation:
I also think its B because the effector neuron transmits impulses from the central nervous system to an effector in order to bring about a physiological response. I'm not really that good at biology.
HEYY GUYYYSS Heelppp ILL MARK you BraINLiEST
Answer:
#1, #2, and #4 are all true. #3 is false
Explanation:
3. The Seventh Amendment protects
C. the right to bear arms
A. people from cruel and unusual punishment
B. the right to a jury in a civil case
D. people's houses from being searched
without a warrant
Will give brainliest answer!
Which describes the chromosome theory of inheritance?
1.Each adult organism has four alleles for each specific trait.
2.Offspring inherit two copies of each chromosome from each parent.
3.The traits of offspring are random and unrelated to the parents.
4.Genes are carried from parents to offspring on chromosomes.
Answer:
i beleive it is answer choice one but if wrong, im so sry
Explanation:
Answer:
4. Genes are carried from parents to offspring on chromosomes I think
Examine figure 1 below. Which houses the DNA.
How convenient fingerprinting be used to establish relationships between relatives
it can show us our history and may help us discover relatives we never new we had or lot contact with.
which renewable energy source do you think would be best to develop first
Answer:
Geothermal and Nuclear
Explanation:
Geothermal is the most reliable renewable energies and comes from the Earth. Nuclear energy is actually non-renewable but it is safe and extremely effecient.
what happens to all the weight of the food we eat
Answer:
All the weight of food we eat can happen in many ways. It can be digested and turned into waste. It can also be turned into body fat. The weight of the food we eat can help give us nutrition and vitamin s.
Explanation:
The weight of food can slightly go away due to food going in to the digestion system and turns into waste.
Apologies if this isn't the best answer.
How reintroduction of the sea otter populations impacts the health of the kelp forest ecosystem describe the impact on at least 3 other l species within the kelp forest
Answer:
Sea otters encourage the growth of giant kelp forests as they control sea Urchin populations. Otters are a keystone predator. Kelp forests are curcial to many many many species of animals. Sea lions and seals feed on the fish there, many types of fish are found there crucial to fisherman such as all types of rock fish. Crabs, jelly fish, sea stars, anemones, and other small fish rely of these forests so it will greatly impact their population and over all health and the health of the ocean if there is a sea urchin population control.
Explanation:
What is the classification of virus
Answer:
Viruses are classified into 4 groups based on their shape: filamentous, isometric , enveloped, and head and tail.
Many viruses attach to host cells to facilitate penetration of the cell membrane, allowing their replication inside the cell.
The virus core contains the small single- or double-stranded genome that encodes the proteins that the virus cannot get from a host cell.
Explanation:
not sure if this is what you are looking for
According to the Baltimore classification system, Viruses are classified into seven classes on the basis of their morphology and function.
What is Virus?A Virus may be defined as a type of microorganism that consists of a nucleic acid molecule in a protein coat and infects cells and may cause disease.
Viruses are classified into seven classes, each of which has its own families of viruses and has differing replication strategies.
Class 1: Double-stranded DNA viruses.
This type of virus usually must enter the host nucleus before it is able to replicate. An Example is Adenoviridae.
Class 2: Single-stranded DNA viruses.
Such types of viruses replicate within the nucleus and pertain highly in vertebrates. An example is Circoviridae.
Class 3: Double-stranded RNA viruses.
Such types of viruses do not depend on host polymerases for replication. An example is Birnaviridae.
Class 4: Single-stranded RNA viruses (positive sense).
Such types of viruses have polycistronic mRNA which is translated into a polyprotein. An example is Flaviviridae.
Class 5: Single-stranded RNA viruses (negative sense).
Such types of viruses must be transcribed by viral polymerases into complementary forms. An example is Filoviridae.
Class 6: Single-stranded RNA viruses (positive sense) that replicate through DNA intermediate.
Such types of viruses use the enzyme reverse transcriptase to convert the positive sense RNA into DNA. An example is Retroviruses.
Class 7: Double-stranded DNA viruses that replicate through a single-stranded RNA intermediate.
Such types of viruses have a double-stranded gapped genome that is subsequently filled into a covalently closed circle that serves as the template for the production of viral mRNA. An example is the Hepatitis B virus.
Therefore, it is well described above.
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Which of the following are not true of exocytosis? A.it occurs at the cell membrane B.it does not require energy C.it needs a vesicle to move the matter D.it expells matter out of the cell
Answer:C is wrong exocytosis only needs a transport protein and atp
Explanation:
The statement which is not true is it needs a vesicle to move the matter. Thus, option C is correct.
What is cell?
Cell is defined as the base of life as it is the structural as well as functional unit of life. Cell is made up of pre existing cells and the cell contain various cell organelles such as mitochondria, endoplasmic reticulum, ribosomes, golgi appratus, nucleus, and cytoplasm.
Basically,cell is of two type one in prokaryotic and another one is eukaryotic. The prokaryotic cell is known as pre mature cells as they do not contain cell organelles and eukaryotic cell are known as advanced and developed cells as they contain several cell organelles.
The unicellular animals are made up of single cell and all the functions carried out in a single cell like amoeba and multicellular organisms are made up of multiple cells and there is specific cell for specific functions.
Therefore,The statement which is not true is it needs a vesicle to move the matter. Thus, option C is correct.
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Whats The Answer Giving Brainliest To first Correct AnSwEr:D
Answer:
the answer is A: Ice crystals
Explanation:
I hope this helped and if it did I would appreciate it if you marked me Brainliest. Thank you and have a nice day!
A community switches from a coal power plant to a wind power plant to
obtain electricity. What is a likely outcome of this switch?
A. Bird and bat populations will grow larger.
B. Noise pollution in the community will decrease.
C. Electricity will become less expensive.
D. Acid rain will be reduced.
Answer:
C. electricity will become less expensive
Explanation:
as wind energy is free, so Electricity will become cheap.
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Merry Christmas good day
Answer: D. acid rain will be reduced
Explanation:
Which is a sequence of actions that a system undergoes?
goals
feedback
process
inputs
Answer:
C, process.
Explanation:
A process is a sequence of actions that a technological system undergoes to produce an output.
Which of the following are abiotic factors? (Multiple Answers
Answer:
atmosphere,sunlight,wind water