Answer:
4,545
Explanation:
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1. Light waves continue moving in a straight path until what?
2. What are the three properties of light?
3. Which property occurs when the object seems to have bent & changed directions?
4. What are the two main wave types?
5. Give an example of matter waves.
6. TRUE OR FALSE: You can hear in space.
7. Which waves travel faster, light or sound?
Answer:
2 frequency intensity wave lenghth spectrum
Explanation:
what is the major component of Bones and the proteins that build muscles
Answer:
CarbonExplanation:
Carbon is an essential building block in the bodies of living things. For example, carbon is a major component of bones and the proteins that build muscles. And most organisms use oxygen for their life processes._____________________follow meIf mitosis happens in our gonad cells that produce egg or sperm. How will it impact the progeny's chromosome number? Emphasize also the point why is meiosis so very important.
Who understand this
Explanation:
If gametes were produced instead by mitosis each gamete would be diploid not haploid. During fertilization of diploid gametes, the zygote would become 4n=92. With each new generation the number of chromosomes would double.
In which of the following hydrogen bonds can be found?
A. Between cytosine and thymine in a DNA double helix
B. Between deoxyribose sugar and nitrogen base in a DNA nucleotide
C. Between deoxyribose sugar and phosphate group in a DNA nucleotide
D. Between purine and pyrimidines bases in a DNA double helix
Answer: C. Between deoxyribose sugar and phosphate group in a DNA nucleotide.
Explanation:
Hydrogen is a very important element in the planet due to the many uses of its compounds for example, water. Hydrogen is also very important to humans as it is integral to DNA formation.
Hydrogen bonds exist in the DNA nucleotide to ensure that different strands are connected to each other. These strands are composed of bonds between deoxyribose sugar and phosphate groups.
Compare adaptation and fitness
Answer:
Explanation:
An adaptation is a trait an organism has to make it better suited for the enviorment
Fitness, however is the measure of how many offspring an organism can produce and this depends on these individuals having these sucessful adaptations.
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Which of the following best compares the cells produced from mitosis to those produced during meiosis?
Answer:
brbe
Explanation:
vrwververge
find the meaning of ductile
Answer:
Ductility is usually defined as the extent to which a material can be deformed plastically and measured in uniaxial tension.
Explanation:
What happens after activation of T cells
Answer:
Helper T cells are arguably the most important cells in adaptive immunity, as they are required for almost all adaptive immune responses. They not only help activate B cells to secrete antibodies and macrophages to destroy ingested microbes, but they also help activate cytotoxic T cells to kill infected target cells.
Explanation:
Helper T cells become activated when they are presented with peptide antigens by MHC class II molecules, which are expressed on the surface of antigen-presenting cells (APCs). Once activated, they divide rapidly and secrete cytokines that regulate or assist the immune response.
In which scenario is the ecosystem the most stable? Suggest a reason for this and use the word competition in this explanation
Answer:
The ecosystem was most stable where the rabbit eats only plant A. I feel like this happened because since the rabbit is only eating plant a, the competition between plants A and B is reduced
Help&explain
Don’t use for points or will be reported and I’ll take the points back
Answer:
They have lungs.
Explanation:
Reptiles that are currently living have lungs means they breathe through their lungs not like fishes which breathe through gills. They have dry skin and have scales on their skin. Snakes, lizards, turtles are the examples of reptiles. Some reptiles such as sea turtles and penguins are also lives in water, but they come onto land to lay their eggs and comes to the surface breathing.
In Labrador retrievers some puppies have pink noses and some have black. Labrador retrievers with black fur almost always have black noses. What type of inheritance pattern is this? Explain how this is possible.
Why does a fever become dangerous to body functions if it continues to rise?
A. Dehydration will occur
B. Osmosis may be affected due to lack of water
C. A fever breaking is more dangerous than the fever itself
D. Proteins become denatured and are unable to complete their jobs
b osmosis may be affected due to lack of water
Fever has been defined as the rise in the temperature of the body. The rise in fever is a dangerous process as lack of water causes dehydration in the body. Thus, option A is correct.
What is dehydration?Dehydration is the loss of water and body fluid than the intake of the fluid amount. The high-temperature condition of the body causes the loss of water from the body that gets evaporated from the skin cells.
When a person is suffering from fever the body fluid and electrolytes are lost by vomiting, tears, sweat, diarrhea, and urine. Dehydration can be detected by thirst, dry mouth, dizziness, etc.
Too much heat in the body during fevers results in the loss of water from the body that is more because the fluid intake gets reduced and the body becomes deficient in electrolytes and fluids.
It is a serious problem that should be dealt with so that the cells and tissues of the body can restore the water balance that is crucial for various activities and functions.
Therefore, option A. increase in the temperature in fever causes dehydration.
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A mother and father both have brown eyes, but their child has blue eyes. Which statement most likely explains this
Answer:
Blue eyes is a recessive trait
Explanation:
Recessive traits show in 25% of the offspring, but they skip the first generation. This means that the 25% only shows up in the second generation unless two recessive traits are put together. A likely combination is that both of the parents had Bb, which you can put into a punnet square to visualize.
B b
B BB Bb
b Bb bb90
What is a dichotomous key
Answer:
A dichotomous key is a tool that allows the user to determine the identity of items in the natural world, such as trees, wildflowers, mammals, reptiles, rocks, and fish. Keys consist of a series of choices that lead the user to the correct name of a given item. "Dichotomous" means "divided into two parts"
Explanation:
The new field of study that has resulted from the human genome is
Answer:
The Human Genome Project
Explanation:
Approximately what percent of the oxygen on Earth is produced through
photosynthesis?
Answer:
50-85%
Explanation:
A tick feeding on a human is an example of
Answer:
This would be a parasitism.
Explanation:
This is where one side benefits and the other is hurt.
Consider one such cell where the magnitude of the potential difference is 40 mV, and the inner surface of the membrane is at a higher potential than the outer surface. A sodium ion (Na ) is initially just outside the cell membrane (initially at rest). How much work (in J) is required for a cell to absorb the ion, so that it moves from the exterior of the cell to the interior
Answer: W = 6.4x10⁻²¹J
Explanation: Work is the energy transferred to or from an object due to the application of a force along a displacement.
The ion Na is gaining energy to move from a lower potential to a higher one.
For this to happen, the work done is calculated as
[tex]W=q.\Delta V[/tex]
in which
W is work in Joules (J)
q is charge in Coulomb (C)
[tex]\Delta V[/tex] is potential difference in Volts (V)
The ion Na has one positive charge. In coulombs, the charge is
q = 1.6x10⁻¹⁹C
The potential difference in Volts is
[tex]\Delta V[/tex] = 40x10⁻³ or 4x10⁻²V
Calculating
[tex]W=q.\Delta V[/tex]
W = 1.6x10⁻¹⁹. 4x10⁻²
W = 6.4 x 10⁻²¹ J
The work done to move an ion of sodium from the exterior to the interior is 6.4 x 10⁻²¹ J.
w, use what you have learned about heredity to complete the chart below. The allele pairs in the left column represent eye color in fruit flies. Ris the
ominant color (red), and r is the recessive color (white). Study the chart and fill in the missing phenotypes.
Answer:
RR is hom0zygous dominant and will Red
Rr is heterosygous and will also be red
rr is hom0zygous recessive and will be white
Explanation:
The filling of the chart with respect to the genotype given is as follows:
RR (homozygous dominant) gives Red eye color in fruit flies. Rr (heterozygous) will also deliver red eye color in fruit flies.rr (homozygous recessive) gives white eye color in fruit flies. What is meant by Genotype?Genotype may be defined as the ultimate combination of alleles of those genes which are selected for specific study in order to deliver some sort of genetic information.
As it is an organism is its complete set of genetic material. These can also be utilized in order to refer to the alleles or variants an individual carries in a particular gene or genetic location.
In fruit flies, red eye color is dominant over white eye color. So, when red eyed-colored (RR) flies are crossed with white-eyed colored flies (rr), they produce offspring with the genotype Rr and phenotype of red-eye color. This all deals with the law of dominance.
Therefore, the filling of the chart with respect to the genotype given is well described above.
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From which molecules do organisms get energy to perform daily activities
Answer:
Carbohydrates
Explanation:
The result of photosynthesis is the production of sugar molecules knowns as. carbohydrates. carbohydrates are. energy rich molecules which organisms use to carry out daily activities. as organisms consume food and use energy from carbohydrates, the energy travels from. one organism to another.
why water is called heating and cooling agent
This gene segment codes for a peptide in humans.
GCTGTGTGAGGCAGA
What is the expected mRNA sequence when the gene segment is
transcribed in transgenic mice?
Answer:CGACACACUCCGUCU
Explanation:
The expected mRNA sequence when the gene segment is transcribed in transgenic mice is GCUGUGUGAGGGCAGA
What is mRNA (messenger RNA)?Responsible for transporting the information transcribed from the DNA chain. Information is transported through codons, which are sequences of three nucleotides, for example, AUG – Adenine, Uracil and Guanine.
With this information, we can conclude that the mRNA sequence expected when the gene segment is transcribed in transgenic mice is GCUGUGUGAGGGCAGA
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Explain the role of certain plant cells in flood control
Answer:
To absorb water to lowers the intensity of flood.
Explanation:
The main role of certain plant cells in flood control is to absorb water as well as the decrease the flow of water which slower down the intensity of flood. There are some plants in which their cells absorb huge amount of water which decreases the amount of water in the flood and as a result flood water decreases so that's why vegetation is very important in order to avoid flooded condition.
DNA is used to tell people apart. What aspects of DNA do you think make this possible?
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Answer:
Kindly refer to the attachment.Thank U,NExt
DNA can be used to tell people apart - their DNA sequences or the lengths of repeated regions of DNA
Deoxyribonucleic acid (DNA) is a molecule that contains the biological instructions that make each species unique.
DNA contains genetic information that is passed from adult organisms to their offspring during reproduction.Each offspring forms by the combination of the parent's gene or DNAThe actual sequence of DNA on each of the chromosomes is unique due in part to recombination.recombination causes genetic variation and made everyone unique.This is incorporated in the nucleotide sequences in DNA molecules.Thus, DNA can be used to tell people apart - their DNA sequences or the lengths of repeated regions of DNA
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What was your initial reaction to this picture
My eyes feel blessed, I want to pet him. He seem pretty chill
Which inequality is graphed on the coordinate plane?
Answer:
C
Explanation:
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Do producers in an ecosystem transfer all their energy to first-level consumers?
Answer:
Producers in an ecosystem transfer all their energy to primary-level consumers. Organisms at higher trophic levels tend to be fewer in number than those at lower trophic levels. ... The lowest trophic level of any ecosystem is the producers.
if fossils are in many different places, but only lived for a short period of time what are they considered
Answer:
index fossils
Explanation:
Answer: An ideal index fossil
Explanation: An ideal index fossil lived during a short period of time, was geographically and environmentally widespread, and is easy to identify. Some of the most useful index fossils are hard-shelled organisms that were once part of the marine plankton.
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What is the purpose of the part of the female reproductive system highlighted
below?
O A. Developing a fetus
B. Collecting sperm
C. Storing eggs
D. Transporting eggs
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Answer:
the picture isnt really clear but i guess B
Explanation:
just to explain the collecting of sperm happens in the oviduct
the developing of a fetus happens in the uterus
The female reproductive system includes the glands and organs that produce the female gamete, the egg. The highlighted part in the diagram stores eggs. Thus, option C is correct.
What are the parts of the female reproductive system?The female reproductive system has various organs like ovaries, fallopian tubes, vagina, uterus, accessory, and other external organs. They are involved in the production and storage of eggs or the ovum.
The ovaries are the main organs that are two in number and oval-shaped structures, located on either side of the uterus, and produce ovum and hormones, estrogen and progesterone.
During the menstrual cycle, one of the ovaries releases the ovum in the fallopian tubes that may get fertilized or get shaded with the blood and tissues. The egg is produced through the process of oogenesis in the ovaries.
Therefore, the highlighted part is the ovary that stores the egg.
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PLEASE HURRY!!!!
When you have corresponding DNA sequences that comes from separate parents; one
from the mother and the other coming from the father... these are called _______________
That is why we have a pair for each chromosome.