Answers
Answer:
wavelength: the distance between successive crests of a wave
frequency: the rate per second of a vibration constituting a wave, either in a material (as in sound waves), or in an electromagnetic field (as in radio waves and light)
electromagnetic energy is used for wifi, cell phones, microwave ovens etc.
the electromagnetic spectrum includes radio waves, microwaves, infrared radiation, visisble light, ultraviolet, xrays and gamma rays
the only part we can see is visible light
visible light can be characterised by the colours of the rainbow
the longest wavelength is red and the shortest is violet
when combined, the colour is perceived as white or beige
Answer:
Just as wavelength and frequency are related to light, they are also related to energy. The shorter the wavelengths and higher the frequency corresponds with greater energy. So the longer the wavelengths and lower the frequency results in lower energy.
Explanation:
WAVELENGTH=
PHYSICS
the distance between successive crests of a wave, especially points in a sound wave or electromagnetic wave.
"a range of wavelengths"
2.
a person's ideas and way of thinking, especially as it affects their ability to communicate with others.
"when we met we hit it off immediately—we're on the same wavelength"
FREQUENCY=
Frequency, in physics, the number of waves that pass a fixed point in unit time; also, the number of cycles or vibrations undergone during one unit of time by a body in periodic motion.
ENERGY=
energy, in physics, the capacity for doing work. It may exist in potential, kinetic, thermal, electrical, chemical, nuclear, or other various forms. There are, moreover, heat and work—i.e., energy in the process of transfer from one body to another.
Related Questions
Humans are know to have 46 chromosomes in each somatic cell. The domesticated cat, on the other hand, has 38 chromosomes in somatic cells. Given this predict the number of chromosomes found in the following cat cells:
Sperm cell:
Egg cell:
Daughter cell from mitosis:
Daughter cell from meiosis 1:
Daughter cell from meiosis 2:
Answers
Answer:
Sperm cell: 19 chromosomes
Egg cell: 19 chromosomes
Daughter cell from mitosis: 38 chromosomes
Daughter cell from meiosis 1: 19 chromosomes
Daughter cell from meiosis 2: 19 chromosomes
Explanation:
There are two major divisions that occur in living organisms namely: meiosis and mitosis. Meiosis is called a reduction division because it reduces the chromosomal number of offsprings by half while mitosis is called multiplication division because it maintains the same number of chromosome in the parent cell.
According to this question, a cat has 38 chromosomes in its somatic/body cells. It will possess the following chromosome numbers after the type of division:
- Sperm cell: 19 chromosomes because sperm are gametes formed via meiotic division, hence, 38 chromosomes are reduced by half i.e. 38/2 = 19.
- Egg cell: 19 chromosomes because egg cells are gametes formed via meiotic division, hence, 38 chromosomes are reduced by half i.e. 38/2 = 19.
Daughter cell from mitosis: 38 chromosomes because mitosis maintains the number of chromosomes as parent.
Daughter cell from meiosis 1: 19 chromosomes because the actual reduction from diploid (38 chromosomes) to haploid (19 chromosomes) takes place in meiosis 1 due to separation of homologous chromosomes.
Daughter cell from meiosis 2: 19 chromosomes because sister chromatids, which becomes individual chromosomes, are separated at this stage.
During which days of the menstrual cycle does the level of FSH increase?
Question 1 options:
FSH increases before the menstrual cycle is finished around day 27.
FSH rarely increases during the menstrual cycle, it stays level unless the follicle has been implanted.
FSH increases during the follicular stage of the ovarian cycle (between day six and day fourteen).
FSH increases during the follicular stage of the ovarian cycle (between day one and day six) and then peaks on the 13th day.
Answers
Answer:
option (C) is correct answer
What is the closest crop relative of Aloe vera?
Answers
Answer:
lily
Explanation:
i’m not 100% sure try researching
Flows of energy and cycles of nutrients link the biotic and abiotic components of ecosystems into a/an __________ system, ultimately structuring the feeding relationships, or __________ structure of organisms that inhabit them.
Answers
Answer:
The correct answer is - dynamic and trophic.
Explanation:
A/an dynamic system is linked to lows of energy and cycles of nutrients link the biotic and abiotic components of ecosystems that structure the feeding relationships, or trophic structure of organisms that inhabit them. The trophic structure is the position of the organism in the ecosystem and food chain.
The correct answer is - dynamic and trophic.
Identify two means by which meiosis results in genetically unique gametes, and explain why this is important.
Answers
Explanation:
Meiosis is beneficial as it produces gametes that are genetically different to the parent cell, and when the gametes combine the offspring produced is made from combination of genes from both mother and father. The offspring is genetically unique, there is no other organism on the Earth with the exact same DNA sequences on their chromosomes.
What is the answer with explaining
Answers
Answer:
actually I'm not even sure but I would say that the wife cheated
nucleotides are the basic
unit for which macro molocules
Answers
The correct answer to question is Nucleic Acids, (DNA) AND (RNA).
hope this helps let me know.
I want to understand what is a strome !!!???
Answers
Answer:
Do you mean the Stroke?
Explanation:
If you mean Stroke, it is a spongey transparent substance in a plant cell that helps support its function
A new organism is discovered at the bottom of the ocean. A scientist is determining the composition of elements found in the tissues of the organism.
Which elements will most likely be found?
Answers
Answer:
carbon, hydrogen, nitrogen, and oxygen
What is the difference between lymph and lymph vessels
Answers
Answer:
A thin tube that carries lymph (lymphatic fluid) and white blood cells through the lymphatic system. Also called lymphatic vessel. Anatomy of the lymph system, showing the lymph vessels and lymph organs including lymph nodes, tonsils, thymus, spleen, and bone marrow.
Which of these actions is likely to prevent the spread of pathogens in the environment?
Washing hands once a week
Coughing out loud
Touching wounds
Washing fruits
Answers
Answer:
A or D
Explanation:
Coughing out loud and Touching wounds will spread it, not prevent it, Its most likely D, because only washing your hands once a week is basically useless and will prevent little- to nothing so washing fruits is your best bet I would go with D
"During cytokinesis of an animal cell, a cell plate grows from the center moves outward"
True
False
Answers
Answer:
True
Explanation:
Umm.. Hi there! Can someone please help me out with this? (only for those who know the answer)
Bcoz I really need this rn :(
even though it is multiple choice, I still need your explanation for your answers. Thanks!!
DUEEEE AFTERRR LUNCHH! :(:(:(:(
If your answer is NONSENSE it will be deleted as soon as possible!
But if your answer is CORRECT, HELPFUL, HAS AN EXPLANATION, I'll chose your answer as the BRAINLIEST ANSWER!
Answers
Answer:
(b)(c)(a)(b)(d)(d)Explanation:
1.
I saw the similarity that there are 7 periods in a periodic table and 7 days in a week.
2.
The periodic table tells us both the symbol and atomic number of the elements.
3.
days as there are 7days in a week.
4.
vertical columns are called groups.
5.
seeing the periodic table we can locate it postion that is group 16 period 2.
CONCLUSION :-
1. all the given points tell the properties of periodic table.
Susan went to an oncologist because some cancerous cells had been detected within her breast
tissue. Which of the following is NOT a warning signal for cancer?
Answers
Answer:
Cancerous
Explanation:
Cancerous doesn't mean cancer
The eurkaryotic cells glycocalyx is..?
Answers
Explanation:
The glycocalyx is a carbohydrate-enriched coating that covers the outside of many eukaryotic cells and prokaryotic cells, particularly bacteria .
What is the answer with explaining and what I put in the empty box
Answers
Hope this helps! Please make me the brainliest, it’s not necessary but appreciated, I put a lot of effort and research into my answers. Have a good day, stay safe and stay healthy.
Which of the following is not a hormone and neurotransmitters except
A) epinephrine
B)dopamine
C) serotonin
D) acetylcholine
Answers
Answer -
D) Acetylcholine
Consider the following research question.
Research Question: Why is yeast used to bake bread?
Which hypothesis is based on this research question?
A. Yeast is a living organism.
B. Some people try to lose weight by cutting bread out of their diet.
C. A comparison of rye bread to wheat bread indicates that rye bread
is more enjoyable to eat.
O D. Yeast added to bread dough produces a gas, and this causes the
dough to rise, making the finished bread look like a sponge.
Answers
Answer:
d
Explanation:
__________________ moves the respiratory medium over the respiratory surface.
Group of answer choices
perfusion
percolation
ventilation
diffusion
Answers
Answer:
ventilation
Explanation:
Breathing, also known as ventilation, is the process of moving air or water in order to facilitate the gas exchange between the external and internal (body) environment, mostly to eliminate carbon dioxide (CO2) and bring in oxygen (O2). For example, fish are aquatic animals that need to run water over their gills to get the O2 that they need to survive (gills are organs that create a large surface area for ventilation). Moreover, insects ventilate their tracheal system to get O2. Finally, terrestrial vertebrates (i.e., amphibians, reptiles, birds, and mammals) use organs called lungs to exchange O2 and CO2 between their cells and the external environment.
Part B
Next, our galaxy can be organized into a galaxy group. This galactic group is a collection of about 50 galaxies that are
gravitationally bound to each other. What is the name of the galaxy group in which our galaxy belongs? As you are
researching, list at least three characteristics that you learned about our galaxy group.
Answers
Answer:
The Milky Way galaxy is part of a group of galaxies called the Local Group. Three characteristics that I learned about our galaxy group is The Milky Way is a large barred spiral galaxy, they come in a variety of shapes and sizes, and it appears as a milky band of light in the sky when you see it in a really dark area.
Explanation:
Edmentum
The Milky Way galaxy is a member of the Local Group of galaxies named Laniakea . The Milky Way is a massive barred spiral galaxy and can be seen as a milky band of light.
What are the characteristic feature of the Milky Way?
The Milky Way galaxy is a massive, flat, disk-shaped collection of stars, gas, and dust that spans around 100,000 light-years and is several thousand light-years thick.
The Milky Way galaxy contains every star that we can see with our unaided eyes. The Andromeda Galaxy is the only celestial object visible in the night sky with unaided eyes that is not part of the Milky Way.
It is estimated that the Milky Way is 12 billion years old.
Thus, Milky Way is the galaxy we live in amongst others.
Learn more about Milky Way, here:
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Match each enzyme namewith the correct descriptive phrase.
a. Ads through an adenylylated DNA intermediate
b. Catalyzes mitochondrial DNA replication
c. Catalyzes most nucleotide incorporations in bacterial DNA replication
d. Catalyzes formation of a double-strand DNA break
e. Cleaves RNA in a DNA — RNA hybrid molecule
f. Uses a tRNA primer in synthesis of retroviral DNA
1. Topoisomerase Il
2. DNA ligase
3. DNA polymerase γ
4. Reverse transcriptase
5. DNA polymerase I
6. DNA polymerase Ill
Answers
Answer:
The correct answer is -
a. 2
b. 3
c. 6.
d. 1
e. 5
f. 4
Explanation:
Topoisomerase II is the enzyme that catalyzes the formation of double-strand DNA breaks.
DNA ligase is the enzyme that catalyzes through adenylated DNA intermediate
DNA polymerase gamma is n enzyme that acts on the Mitochondrial DNA replication.
The reverse transcriptase uses a tRNA primer during catalytic reaction in the synthesis of retroviral DNA
DNA pol I breaks RNA in a DNA-RNA hybrid molecule in their catalytic reaction.
DNA pol IIIused in catalyzing and acts as major enzyme, the most nucleotide incorporations in bacterial DNA replication
Imagine that there is a mutation in the cyclin gene such that its gene product is nonfunctional. What kind of effect would this mutation have on a skin cell in the area of a cut
Answers
Answer:
The correct answer is - The cell would be unable to produce.
Explanation:
Cyclin is a protein that helps in cell division to complete the various stages. It has an essential function, however, cyclin does not play role in enzymatic reactions bit bind with cyclin-dependent kinase enzyme they form maturation promoting factors which can phosphorylate specific proteins and result in many different stages of the cell cycle.
Mutation in cyclin gene that did not allow to produce cyclin protein will cease the cell cycle and there would be no future daughter cell and the cell would not be able to produce.
Meiotic recombination produces new genetic information in sister chromatids.This Happens During prophase I. Order the stages of prophase I chronologically: ____ Diplotene.-The synaptonemal complex dissociates; homologous pairs remain attached (chiasmata).
Answers
Answer:
See the answer below
Explanation:
The various stages of propase I of meiosis I in chronological order would be
1. Leptotene
2. Zygotene
3. Pachytene
4. Diplotene
5. Diakinesis
The leptotene stage is characterized by the thickening or condensation of the genetic material in the nucleus such that 'thick thread' structures is formed.
At the zygotene stage, the thickness advances and structures can be seen as chromosomes under the microscope. Homologous chromosomes are seen pairing up (synapsis) through the formation of synaptonemal complex to form tetrads or bivalents.
At pachytene, an exchange of chromosomal segments between synapsed homologous chromosomes occur in a process known as crossing over. The exchange point along the synapsed chromosomes are known as the chiasmata. After the crossing over, homologous chromosomes begin to separate but remains joined at the chiasmata.
At diplotene, the dissolution of the synaptonemal complex occur and homologous chromosomes still held together by the chiasmata begin to repel one another. The chiasmata becomes terminalized.
At Diakinesis, chromosomal condensation is completed and the cell is conditioned to progress to metaphase I of meiosis I.
Describe how oxygen is transported in blood, and explain how temperature, pH, BPG, and affect oxygen loading and unloading.
Answers
Solution :
The flow of oxygen in the blood is been transported by two ways :
1. in plasma 1.5%
2. bound to hemoglobin 98.5%
As the oxygen loads in the body, affinity of the Hb makes the oxygen loading very efficient in the blood. The Hb molecule gets saturated when all the 4 hemes are oxygen binded.
The decreased pH weakens the hemoglobin oxygen binding in the tissues.
Higher temperatures in the oxygen means a lower affinity and thus more oxygen is released and so the oxygen unloads.
Increase in the temperature, the BPG and the modification of the structure in the hemoglobin decreases the affinity for the oxygen and further enhances the unloading of the oxygen in the blood.
Which location is most vulnerable to primary succession?
O A. A newly paved parking lot
O B. An overgrazed prairie
O C. A well-maintained ranch
O D. A newly formed island
BUBMIT
PREVIOUS
o
A
TO
Answers
Answer:
A. A newly paved parking lot
Explanation:
Albinism is a recessive trait where an individual does not produce the pigment melanin. A man and woman who both produce melanin have one child out of three who has albinism. What are the genotypes of the man and woman
Answers
Albinism is a recessive trait where an individual does not produce the pigment melanin. Albinism is an autosomal disease where the gene which is expressed here is having albinism which is the cause of heterozygous condition.
What is the heterozygous ?
Heterozygous is the condition where the genes in the alleles are different to each other where one has a dominant character and one has a recessive character. The genotypes of the woman and man decide the genotype of the offspring.
The genotypes of the man and woman is heterozygous where the dominant once out of 3 will have the dominant traits for the albinism. The condition will have to be heterozygous as in the Ia Ii gene where the gene for the albinism will be i gene.
The same genotype for the male where the Ib i gene in which i i the albinism carrying gene here the ii condition of the gene will express the albinism.
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What is physiological?
Answers
Write T next to the statements that are true. Write F next to the statements that are false. Then write
corrected versions of the statements that are false.
a Stems carry food from the roots to the leaves.
b The parts of a plant that make food are usually green.
c Roots are the only organs in a plant that need water.
Answers
Answer:
a= T
b=T
c=F
Explanation:
the answer is correct
The kinetics analyses of an enzyme are measured as a function of substrate concentration in the presence and in the absence of 2mM inhibitor
[S] (microM): 3, 5, 10, 30, 90
Velocity (micromol/min) No Inhibitor: 10.4, 14.5, 22.5, 33.8, 40.5
Velocity (micromol/min) With Inhibitor: 4.1, 6.4, 11.3, 22.6, 33.8
Required:
What are the values of Vmax and Km in the absence of inhibitor? In its presence?
Answers
Answer:
take the reciprocal of the values as 1/S and 1/V and plot the values on lineweaver-burk plot.
so the re-arranged data is as following
1/S 1/V (no inhibitor) 1/V (with inhibitor)
0.333 0.096 0.244
0.2 0.068 0.156
0.1 0.044 0.088
0.033 0.029 0.044
0.011 0.024 0.029
and the plotted lineweaver-burk plot with the equation of straight line would be....
where, first line represents the velocity of reaction with no inhibitor and second line represent the velocity in presence of inhibitor. X-axis has the substrate concentration as 1/S and y-axis has the velocity as 1/V.
as per the plot, equation of line on the lineweaver-burk plot, Y = mx + c, where c = 1/Vmax and m = Km/Vmax.
so solve for the given equations.
First, equation of line in the absence of inhibitor is Y = 0.23x + 0.021
so Vmax = 1/0.021 = 47.6 micromol/min
and Km/Vmax = 0.23, or Km = 0.23 x 47.6
Km = 10.95
Km do not have a unit, so 10.95 x 10-6 or as per your values round it up to 1 decimal point as 1.1 x 10-5
so value of Vmax = 47.6micromol/min and Km = 1.1 x 10-5 in the absence of inhibitor.
similarly, equation of line in the presence of inhibitor is given as Y = 0.67x + 0.021
so Vmax = 1/0.021 = 47.6 micromol/min
and Km/Vmax = 0.67
or Km = 0.67 x Vmax = 0.67 x 47.6 = 31.89
Km do not have a unit, so 31.89 x 10-6 or 3.1 x 10-5
so value of Vmax = 47.6micromol/min and Km = 3.1 x 10-5 in the absence of inhibitor.
Compare and contrast the structure of DNA with RNA.
