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Answer and I will give you brainiliest
I need a surely answer please
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first left (up) trachea
first left (down) diaphragm
right (up) bronchiole
right (down) alveolus
What part of meiosis is responsible for variation?
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Answer:
the double-chromatid homologous pairs of chromosomes cross over with each other and often exchange chromosome segments. This recombination creates genetic diversity by allowing genes from each parent to intermix, resulting in chromosomes with a different genetic complement.
Answer:
The two events that set meiosis apart from mitosis are known as crossing over (or genetic recombination) and independent assortment. These occur in prophase and metaphase of meiosis
During prophase of meiosis I, the double-chromatid homologous pairs of chromosomes cross over with each other and often exchange chromosome segments. This recombination creates genetic diversity by allowing genes from each parent to intermix, resulting in chromosomes with a different genetic complement.
Explanation:
Genetic variation is increased by meiosis
Because of recombination and independent assortment in meiosis, each gamete contains a different set of DNA. This produces a unique combination of genes in the resulting zygote. Recombination or crossing over occurs during prophase I
True or false: the tail portion of phospholipid molecule is hydrophobic
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Answer:
true
Explanation:
The fatty acid chains are the uncharged, nonpolar tails, which are hydrophobic. Since the tails are hydrophobic, they face the inside, away from the water and meet in the inner region of the membrane.
The statement "the tail portion of the phospholipid molecule is hydrophobic" is definitely true.
What is Phospholipid?Phospholipid may be defined as an amphipathic molecule that is constructed from four components. They are fatty acid, a platform to which fatty acids are attached, a phosphate, and an alcohol attached to the phosphate.
The molecule of phospholipid has a polar head and a non-polar tail. The polar head is known as hydrophilic and a non-polar tail is known as hydrophobic.
Such types of tails move away with water, hence they are significantly found at the inner side of the membrane and form a type of barrier.
These tails of phospholipids are typically uncharged which expel water and separates the internal contents of the cell from its outer environment.
Therefore, the statement "the tail portion of the phospholipid molecule is hydrophobic" is definitely true.
To learn more about Phospholipid bilayer, refer to the link:
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Often During summer months large bodies of water will experience "fish kill." These do not happen during the winter months. Explain these events using your understand of the properties of water.
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Answer: see below.
Explanation:
gases dissolve more in colder water, so in summer the water can become oxygen depleted. Evaporation in summer can reduce water volume; even in summer rainfall climate evaporation rates may exceed precipitation. Evaporation will also cause higher conentrations of solutes of which some may reach toxic levels. Summer sun may also cause algal or cyanobacterial blooms which can further deplete dissolved oxygen and may release toxins into the water.
1. The lithosphere floats on top of the more plastic (soft) asthenosphere. This is the
basis for Plate Tectonics or the idea that the continents, along with the crust below
them, have moved over time. Describe the properties of these two structures and
how you think that affects their interactions.
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Answer:
answer is that the atmosphere is hot as
plz help im timed :\
By which mechanism does older oceanic rock move at a ridge?
Magnetic forces move the rock.
Continents drift and move the rock.
The ridge subducts and moves the rock.
New molten material rises and moves the rock.
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Answer:
The ridge subducts and moves the rock.
Answer:
c. older rocks farther from the ridge
Explanation:
because i know ;)
what is Refrigeration in food preservation
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Answer:
Refrigeration in Food Preservation and Processing ... The aim of all food preservation methods is to slow down processes that cause deterioration of quality and wholesomeness. Refrigeration applications are equipment that transfers heat from the product or enclosure (refrigerated cabinet or room) to the colder refrigerant.
Answer:
The aim of all food preservation methods is to slow down processes that cause deterioration of quality and wholesomeness. Refrigeration applications are equipment that transfers heat from the product or enclosure (refrigerated cabinet or room) to the colder refrigerant
Explanation:
Based on the absolute dating of the rock layers in this photograph, what
could a scientist conclude about a fossil found in area A?
1.4 million
years
2.1 million
years
D
A. It is between 1.4 million and 2.1 million years old.
B. It is less than 1.4 million years old.
0 ООО
C. It is more than 2.1 million years old.
D. It is exactly 1.4 million years old.
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Answer:
B
Explanation:
It is less than 1.4 million years old
Based on the absolute dating of the rock layers in this photograph, a scientist could conclude about a fossil found in area A is that it is less than 1.4 million years old.
What do you mean by Fossils?Fossils may be defined as the dead and organic remains of the past organisms which are preserved deep in the soil over a long period ago.
The fossil found in area A is very recent from the evolution point of view. The deeper the layer, the oldest is the fossil.
Area A of the fossil is synthesized after the time period of 1.4 million years ago, hence the fossil present in that area would be less than 1.4 million years old.
Therefore, based on the absolute dating of the rock layers in this photograph, a scientist could conclude about a fossil found in area A is that it is less than 1.4 million years old.
To learn more about Fossils, refer to the link:
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moves from one place to another by means of
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Answer:
Nomad
Explanation:
is a person or group of people without a designated home who roam around in search of food and pasture land. A person who moves from place to place without having a permanent home is an example of anomad.
I hope it's helpful!
17. Look at "4". This helps you balance, play sports, and pay attention in
school. *
1. cerebellum
2. corpus callosum
3. amygdala
4. spinal cord
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Answer:
its answer is 1. cerebellum
Explanation:
The cerebellum is a part of the brain that plays a vital role in virtually all physical movement. This part of the brain helps a person drive, throw a ball, or walk across the room. The cerebellum also assists people with eye movement and vision. Problems with the cerebellum are rare and mostly involve movement .
hurry pleaseeee
Which 2 events during meiosis increase GENETIC
VARIATION by ensuring that each egg and each
sperm will be unique?
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Answer:
(three) crossing over, mutations caused during crossing over, and independent assortment.
Explanation:
Because of recombination and independent assortment in meiosis, each gamete contains a different set of DNA. This produces a unique combination of genes in the resulting zygote. Recombination or crossing over occurs during prophase I.
Camren designed an experiment to determine which type of soil absoros the most water. To ensure that experiment results in valid data, each container must...
A:contain the same amount of soil B:contain soil from the same place
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Answer:
If this was me, i would want to test different soils to see each result, and i would want it to be precisely the same amount of soil (about 30% of a Glass Cup)
Explanation:
i explained in my answer above,
Also is this a project?
W
w
Having white wool (W) is dominant over having black
wool (w). Two heterozygous sheep are crossed.
What is the probability that the offspring will have black
wool?
%
What is the probability that the offspring will have white
wool?
%
W
WW
Ww
w
Ww
WW
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Therefore, the probability that the offspring will have black wool is 50%.
Answer:
What is the probability that the offspring will have black wool?
25%
What is the probability that the offspring will have white wool?
75%
Explanation:
I got it right trust me on this one
How do moving glaciers change the surface of the earth??? please help!!!
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Answer:
Glaciers are massive bodies of ice that move across the surface of the Earth like rivers. As glaciers move they change the surface of the Earth by wearing away loose rocks and soil and depositing them somewhere else.
Explanation:
Answer:
Glaciers change the surface of the earth by causing small or large amounts of material to be pushed out of the way as the glacier slides along a path set by gravity and angle of the slope it is on.
Explanation:
How can an organism's environment affect its traits?
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First, I read that so incorrectly. Awkward.
An organism's environment affects its physical and self traits by making them adapt. Charles Darwin had discovered this theory with the finches. Places that were harder to get food would make these finches physical change over evolution to help them survive. It changes the animals habits depending on their resources. If a bird eats berries but there is no berries then the bird will have to change its diet or it will die.
Explore the websites linked below to learn more about open, closed, and isolated systems. Then create a table to show what you have learned. For each of the three types of systems, your table should include an example, an explanation of your example (how you know it is the type of system you indicated), what happens to the energy in the system, and what happens to the matter in the system.
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is this all of the text cause its missing more intrusions
Some cnidarians are unique in exhibiting polyp and medusa forms. How might their two body forms give them an advantage over species that have only one body form?
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Answer:
Explanation:
cnidarians are mostly marine animals. they exibit alternation of generation with two different body forms. their larval stage is polyp and the maturation stage is madusa. these two different forms help them to survive. polyp stage is sessile while medusa stage is free swiming. they can get food migrate and do sexual reproduction. their are also some cniderians that exhibit only one body form. these are less suited to environment as compared to the others that haae two body forms.
An insertion mutation example
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Hope this helps :D
What is responsible for movement within a cell
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Answer:
Explanation:
In addition to playing this structural role, the cytoskeleton is responsible for cell movements. These include not only the movements of entire cells, but also the internal transport of organelles and other structures (such as mitotic chromosomes) through the cytoplasm
What is the main difference between prokaryotic cells and Eukaryotic cells?
1 point
O Prokaryotes don't have internal "compartments" called organelles, but Eukaryotes do
Eukaryotes don't have internal "compartments" called organelles, but prokaryotes do
Eukaryotes were the first cells to arise, prokaryotes didn't come until much later
O prokaryotes can reproduce and eukaryotes cannot
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Answer:
Prokaryotes don't have internal "compartments" called organelles, but Eukaryotes do
Explanation:
both Eukaryotes and prokaryotes can reproduce, prokaryotes were the first cells, and Eukaryotes have organelles, prokaryotes do not.
Why do individuals with low
levels of fitness die?
How do adaptations help an organism as they struggle for existence?
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Answer:
low level of fitness means the individuals have little or no adaptations.
while adaptations are those changes that help an organism to struggle and survive. it increases the survival rate of an organism. adaptations are the changes in DNA in the form of mutations and recombinations. it increase immunity of an organism and improve its fitness.
Explanation:
which is an example of a secondary energy source
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Answer:
Explanation:
Secondary energy resources are those which do not occur naturally but which are obtained from one or more of the primary energy resources. Example: Petrol or gasoline, electrical energy from coal burning, hydrogen obtained by electrolysis of water etc. Non-commercial source of energy: Firewood, cow dung , and vegetable wastes.
1Some moths have a brown body and brown wings, while other moths have a white body and white wings. The brown moths often rest on the bark of pine trees, and the white moths rest on the white bark of aspen trees. If all the aspen trees in an area were cut down, what would be the likely result? (YOO PLEASE ANSWERSSSSS)
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Answer:
The poplar tree with the whitest bark is the White or Silver Poplar. It can be distinguished from the white birch fairly easily, even if you can't tell the difference in leaves.
Explanation:
Why does the starch remain present and is detected by iodine in the boiled solution?
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Answer:
Amylose in starch is responsible for the formation of a deep blue color in the presence of iodine. The iodine molecule slips inside of the amylose coil. ... A blue-black color results if starch is present. If starch amylose is not present, then the color will stay orange or yellow. I hope this helps!
Carotenoids are accessory pigments in plants.
True or false
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which statement describes the law of superposition
A. Sedimentary rocks were originally in horizontal layers
B. In horizontal rock layers, each layer is younger than the one below it
C. Rock layers must be in existence before something can happen to them
D. Rocks that are not in horizontal layers were shifted by some geologic event.
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Answer:
B. In horizontal rock layers, each layer is younger than the one below it
Explanation:
Law of superposition, a major principle of stratigraphy stating that within a sequence of layers of sedimentary rock, the oldest layer is at the base and that the layers are progressively younger with ascending order in the sequence. ... It is one of the great general principles of geology..
What is the complementary DNA strand for (CCACTGA)
Answers
Answer:
Explanation:
GGTGACT
Cars A, B, and C are traveling counterclockwise at the same constant speed around the track shown below. Interpret the diagram and answer the question below. What
car will change velocity first?
A. A
B. B
C. C
D. There would be change in velocity is the speed is constant
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Answer:
Its B
Explanation:
because the car would have to SLOW down and change velocity while it turns
Answer:
B
Explanation:
Car B will have to slow down when turning the corner.
I took the quiz! I hope this helps! :D
can someone please help me??? Smart in science?
Answers
Answer:
C.)
Explanation:
All the other answer choices are not advantages of sexual reproduction
Facilitated diffusion is......
A. The opposite of passive transport
B. The same as passive transport
C. Does not require energy to happen