all biomolecules are mad up of the elements. A.carbon, hydrogen, nitrogen, oxygen, and sulfur B. carbon, hydrogen, nitrogen, and oxygen C. carbon, hydrogen, and oxygen D. carbon, hydrogen, oxygen, and sulfur
Answer:
Option(A) carbon ,hydrogen,nitrogen,oxygen and sulphur.
Answer:
A.carbon, hydrogen, nitrogen, oxygen, and sulfur
Explanation:
There are five elements that are essential to life. These are Carbon, Hydrogen, Nitrogen, Phosphorous and Sulfur, or CHNOPS for short. We can see that only option A has nitrogen listed. Nitrogen is absorbed by plants through the soil, and by animals through food. It is absolutely essential for many forms of life, especially plants and animals. Many biomolecules contain Nitrogen. Only one choice on this list contains nitrogen and that is option A. Therefore option A is the answer.
According to the phenotypic characters of pneumococcus considered in Griffith's
experiment of transformation, which of the following statements are correct? Choose the
correct option (i) Presence of slime layer (ii) Presence of capsule (iii) Absence of capsule
Answer:
发发发 发斯蒂芬
Explanation:
Presence of capsule. Therefore, option (B) is correct.
What was Griffith's experiment?Griffith's experiment of transformation is a landmark experiment in microbiology conducted in 1928 by British bacteriologist Frederick Griffith. The experiment aimed to determine the nature of the "transforming principle" responsible for transferring genetic material between bacteria.
Griffith used two strains of Streptococcus pneumoniae, one that was virulent and had a polysaccharide capsule (S strain) and another that was non-virulent and lacked the capsule (R strain). He found that when he injected mice with the heat-killed S strain and live R strain, the mice died, and live S strain was found in their blood. This suggested that the R strain had been transformed into the S strain, and the genetic material was responsible for the transformation.
Griffith's experiment provided the first evidence of bacterial transformation and paved the way for future research on the molecular basis of genetics.
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If the observed genotypes in a given population do not fit those predicted by the Hardy-Weinberg equation, it could mean that..
Answer:
C
Explanation:
gene greatly affects the survival of organisms and if there is a change in the genetic makeup if this organism it leads to mutation
Plants that have a taproot and parallel veins are known as_________.
Answer:
dicotyledonous(dicot) plants
Explanation:
what are the points included in women's rights
Answer:
Explanation:These later evolved into six general points of equality for women: political, occupational, moral, social, economic and legal.
How much of Yellowstone burned in 1988?
Answer:
The 1988 fires affected approximately 800,000 acres (or ~36%) of the park. Five fires burned into the park that year from adjacent public lands, including the largest, the North Fork Fire. It started accidentally and burned more than 410,000 acres.
Explanation:
How would you
change the hypothesis if mussels died in
both aquariums?
The new hypothesis could be that there is another alternative factor that is negativey afecting dwarfs survivorship.
The previous hypothesis of high levels of phosphate killing mussels is not necessarily disproved. But the death of mussels from both the control and the treatment groups might be related to one of the controlled variables that could be actually afecting them.
----------------------
Probably different levels of phosphate are also affecting invididuals´ survivor rates. However, the fact that mussels from all the aquariums died suggests that there is something else going on that caused the death of all the individuals.
The control group is used to identify any other factors influencing the results obtained in the study, apart from the modified variables of the treatment. Individuals of the control group are selected from the same population as the treatment group. These two groups are identical in all aspects except for the independent variable, which changes in the treatment group but remains constant in the control group.
We know that mussels in this experiment were taken from the same population and grown under the same controlled conditions. Only the treatment group received phosphate, but all mussels died, not only the ones that receive phosphate. This result turns to be useful because it is indicating that there is another variable that is killing mussels. Phosphate might be a cause of death, but there is also something else. So the researchers should pay attention to the controlled variables, such as water quality, temperature, pH, food supply, light exposure, or others.
These variables might be reflecting the real conditions under which mussels live. The results tell that one of these is related to individual death and could be a consequence of climate change or soil use, among other causes.
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ASAP
A species of Coral snake has a red, yellow and black stripe pattern. One
gene controls if the stripes are thick or thin. Thin (T) is dominant over
thick (t). If two snakes heterozygous for this gene are crossed, what will
be the genotype(s) of their offspring? You may need to use a Punnett
square to answer the question.
Question Progress
OA. TT and Tt
B. TT, Tt, and tt
C. TT and tt
D. All Tt
The genetic attributes of the organism are determined by the genotype. The cross of the heterozygous genes in Coral snakes results in offsprings with TT, Tt, and tt. Thus, option B is correct.
What are genes?Genes are the functional and physical basis of the inheritance that passes from generation to offspring with various traits and attributes. The gene contains a recessive and a dominant allele.
Heterozygous genes are represented as Tt as it contains one dominant and one recessive allele. The cross between the two heterozygous (Tt) Coral snakes is attached to the image below.
From the cross, it can be seen that 75 % of the coral snakes have thin strips while the 25 % of the species have thick strips. The ratios are:
Genotype = 1 : 2 : 1
Phenotype = 1 : 3
Therefore, option b. the genotype(s) of the offspring will be TT, Tt, and tt.
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What theory explains why the Uranian system is on its side?
Answer:
Astronomers have always assumed that Uranus must have been knocked onto its side by a collision. Now a new idea suggests that the planet's remarkable tilt could have another explanation.
Explanation:
I just know it
Answer:
Astronomers have always assumed that Uranus must have been knocked onto its side by a collision. Now a new idea suggests that the planet’s remarkable tilt could have another explanation.
by Emerging Technology from the arXivarchive page
December 3, 2009
One of the great mysteries of our Solar System is why Uranus is tilted on its side. Surely, if the solar system formed from the same rotating cloud of dust and gas, then all the bodies within it should rotate in the same way. And yet Uranus’ axis of rotation lies at 97 degrees to the plane of the solar system.
5. Which of the following professionals has the authority to prescribe medication and treatment?
A. Nurse practitioner
B. Clinical dietician
C. Nutritionist
D. Home health aide
Answer: A. Nurse practitioner
Explanation: Hope it helps
Answer:
A. Nurse practitioner
Explanation:
Have a great day!
Match the type of evidence for evolution with the correct example
Vestigial structures: 1st box
Homologous structures: Last box
DNA sequence data: 2nd box
Analogous structures: 3rd box
When considering proteins that help control the cell cycle:
Stimulating proteins are encoded by tumor suppressor genes and inhibitory proteins are encoded by
proto-oncogenes.
O True
O False
Which of these is the best definition of sustainable development?
A. Development that makes sure buildings are strong enough to sustain large hurricanes and earthquakes
B. Development that's typical of underdeveloped nations that derive their products directly from nature
C. Development that's supported by public opinion
D. Development that ensures the protection of the environment in the long term
Answer:
option D
Explanation:
is the correct answer
Development which basically ensures the protection of the environment in the long term is sustainable development. The correct option is D.
What is sustainable development?Sustainable development is defined as growth that fulfills the requirements of the moment without jeopardizing future generations' capacity to meet their own needs.
The financial, social, and environmental measurements of sustainable development are examined.
The authors contend that material-intensive conventional productivity recovery is unsustainable in the long term unless environmental and social factors are prioritized equally.
Environmental protection aims to preserve as well as restore a healthy natural environment.
Sustainable development incorporates ecologic, social, and economic goals in order to achieve long-term equitable growth that benefits both the present and the future.
Thus, the correct option is D.
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What are the following is considered a receptive a fine touch
Explanation:
This system is responsible for all the sensations we feel – cold, hot, smooth, rough, pressure, tickle, itch, pain, vibrations, and more. Within the somatosensory system,there are four main types of 1.receptorsme chanoreceptors, 2.thermoreceptors,3. pain receptors, and 4. proprioceptors.Which of the following factors would LIMIT carrying capacity?
A. Far from factories or roads
B. A large nearby river
C. Abundant food
D. A small space to live in
Answer:
D. A small space to live in
Explanation:
Having a small space to live in would directly limit carrying capacity.
Since there is a small space, only a few organisms would be able to live in that space.
This means that carrying capacity is limited, because the space does not have enough room to sustain more people.
So, the correct answer is D. A small space to live in
what is DNA fingerprinting?
Answer:
DNA fingerprinting is a technique that simultaneously detects lots of minisatellites in the genome to produce a pattern unique to an individual. This is a DNA fingerprint. The probability of having two people with the same DNA fingerprint that are not identical twins is very small.,,,,,Answer:
It's a laboratory technique used to establish a link between biological evidence and a suspect in Criminal investigation. It's also known as genetic fingerprinting.
Wall lizards are not seen during cold, Why?
Wall lizard are not seen because blood becomes cold inside the body.
Answer:
Lizards are cold-blooded. They use their enviornment to control their body temperature. If a lizard is cold, it will go somewhere warmer. If a lizard is hot, it will go someone to cool off.
The lizard may find somewhere in direct sunlight, bury themselves in a hole, or bury themselves under leaves to keep warm.
Spinal cord is blank to the esophagus
Answer:
posterior
Explanation:
what is full course meal?
Answer:
Full course meals are made up of three courses: an appetizer, main dish, and dessert. Also known as a three-course meal or a standard course meal, you will sometimes see restaurants offering a full menu with these three items. You can add more courses to a full course meal.
Explanation:
what is psychasthenia? Please don't copy and paste from g,o,o,g,l,e.
Answer:
Psychasthenia is a neurotic state characterized especially by phobias, obsessions, or compulsions that one knows are irrational.
sertoli cells are regulated by the pituitary hormone known as?
a)LH b)FSH c)GH d)prolactin
Answer:
I would say the answer is B. FSH, or Follicle Stimulating Hormone
Explanation:
From a chemical view, how is an amino acid is being recognized by its specific aminoacyl tRNA synthetase?
Answer:
An aminoacyl-tRNA synthetase (aaRS or ARS), also called tRNA-ligase, is an enzyme that attaches the appropriate amino acid onto its corresponding tRNA. It does so by catalyzing the transesterification of a specific cognate amino acid or its precursor to one of all its compatible cognate tRNAs to form an aminoacyl-tRNA.
If brown eyes are recessive to blue eyes, then which of the following would represent a mouse with brown eyes?
1.) ee
2.) EE
3.) Ee
4.) eE
Answer:
ee
Explanation:
ee is recessive
You learned in the previous lesson that T cells require two independent signals to become activated. When T cells are activated, they acquire effector functions and begin to proliferate. This two-signal mechanism prevents the expansion of self-reactive effector T cells. Similarly, B cell receptor signaling alone is not sufficient to activate B cells. B cells require assistance from helper T cells to become activated by monovalent protein antigens and gain certain immune functions. What changes do you suspect will occur to B cells when they are activated by protein antigen and receive T cell help? (select all that apply)
a) They will generate memory cells that can respond to a subsequent exposure to antigen.
b) Their immunoglobulin genes will be mutated in a way that alters antigen affinity.
c) The isotype of their immunoglobulin (Ig) genes will change.
d) They will proliferate and expand.
e) They will secrete antibodies.
Answer:
a. They will generate memory cells that can respond to subsequent exposure to antigen.
d. They will proliferate and expand
e. They will secrete anti bodies
Explanation:
B cells are type of white blood cells who belong to lymphocyte subtype. They are activated by binding of antigen to receptors on cells surface, against which they initiate and antibody response. Some of these cell proliferate and divide while other become long lived memory cells that respond subsequent exposure to antigen at later stage.
Reasons for irritability
Answer:
Depression
Low blood sugar
PMS
Life stress
Anxiety
Hormonal imbalance
Lack of sleep
Explanation:
all the causes of irritability
why do children need more protein
in there diet
If you were given the power to control the United States government and policy what changes would you make regarding the environment and how would you fund these? You can consider your response to the question and/or include other issues.
Answer:
i would probably fund different jails using taxes. there's absolutely no reason someone who accidently committed tax fraud should be sitting in the same cell as aconvicted murderer. & abd I would make harder consequences for hate crimes. like jail time.
You classified organisms based on anatomical structure and development. Scientists also use DNA to classify organisms. Considering the basic process of evolution, why do you think it’s important to also consider DNA and gene patterns during the classification of organisms?
Answer:
By studying genetics and DNA, we can get the best idea of how species are related to each other, and therefore how to classify them. The genetic code of a species is not fixed, however. It changes over time! This is why we also need to factor in evolution.
It is important to also consider DNA and gene patterns during the classification of organisms because,
Through genetics and DNA study, we can get the idea of how species are related to each other and how to classify them. The genetic code of a species is not fixed. So, it need in evolution.How organism classified ?The organism classified on the basis of shared characteristics.The classification of living organism includes seven levels, kingdom, phylum, classes, order, families, genus and species.What is evolution?It is witness in the living species and change in heritable traits of biological population over successive generation.The process of development of complex organism from simpler one with time is called an evolution.learn about gene,
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Changes that Affect the body may take place where
Explanation:
All vital organs begin to lose some function as you age during adulthood. Aging changes occur in all of the body's cells, tissues, and organs, and these changes affect the functioning of all body systems.
Heart is to pump blood as stomach is to
Answer:
hcl is present to clean other harmful acids
