Answer:
it is either called freezing or solidification
what is the main factor in the poor health of undeveloped countries?
a. too few doctors
b. more imports than exports
c. industrial pollution
d. infectious disease
the answer is A.Explanation:
Homologous pairs of chromosomes carry genes that control the same inherited traits. These pairs are known as:
A. Gametes
B. Haploids
C. Diploids
D. Tetrads
E. Chiasma
Answer:
Meiosis produces ________ daughter cells.
A) two haploid
B) two diploid
C) four haploid
D) four diploid
C
At which stage of meiosis are sister chromatids separated from each other?
A) prophase I
B) prophase II
C) anaphase I
D) anaphase II
D
The part of meiosis that is similar to mitosis is ________.
A) meiosis I
B) anaphase I
C) meiosis II
D) interkinesis
C
If a muscle cell of a typical organism has 32 chromosomes, how many chromosomes will be in a gamete of that same organism?
A) 8
B) 16
C) 32
D) 64
B
Explain how the random alignment of homologous chromosomes during metaphase I contributes to variation in gametes produced by meiosis.
Random alignment leads to new combinations of traits. The chromosomes that were originally inherited by the gamete-producing individual came equally from the egg and the sperm. In metaphase I, the duplicated copies of these maternal and paternal homologous chromosomes line up across the center of the cell to form a tetrad. The orientation of each tetrad is random. There is an equal chance that the maternally derived chromosomes will be facing either pole. The same is true of the paternally derived chromosomes. The alignment should occur differently in almost every meiosis. As the homologous chromosomes are pulled apart in anaphase I, any combination of maternal and paternal chromosomes will move toward each pole. The gametes formed from these two groups of chromosomes will have a mixture of traits from the individual’s parents. Each gamete is unique.
In what ways is meiosis II similar to and different from mitosis of a diploid cell?
The two divisions are similar in that the chromosomes line up along the metaphase plate individually, meaning unpaired with other chromosomes (as in meiosis I). In addition, each chromosome consists of two sister chromatids that will be pulled apart. The two divisions are different because in meiosis II there are half the number of chromosomes that are present in a diploid cell of the same species undergoing mitosis. This is because meiosis I reduced the number of chromosomes to a haploid state.
Explanation:
i had those ecact questions hope this helps plz mrk brainliest
True or false determine
Answer:
False. This is because multiple genotypes can determine a phenotype
Which can remove carbon dioxide from the atmosphere?
-plants and animals
-animals and glaciers
-oceans and glaciers
-oceans and plants
Answer:
oceans and plants
Explanation:
Select all that apply The cellular respiration the mitochondrion serves as?
A. A place for the chemical reaction to occur
B. A place where the enzymes needed for the reaction are located
C. The site for lactic acid fermentation
D. The site for the Krebs cycle.
Answer:
d. the krebs cycle
Explanation:
Answer:
d. the krebs cycle
Explanation:
Which would a microscope be LEAST useful in studying?
A. spider
B. amoeba
C. bacterium
D. paramecium
Answer:
A
Explanation:
spiders can be seen with the naked eye
Answer:
A
Explanation:
A spider is large enough to see and observe without a microscope. Bacteria, amoeba and paramecium are all very tiny, and can’t be seen with just our eyes. To see these things, we would need a microscope. Therefore, a microscope would be the least useful when studying A: a spider.
What is the ozone layer?
Why is it important to humans?
Answer:
The ozone layer absorbs most of the Sun's ultraviolet radiation in the Earth's stratosphere.
Explanation:
It is important to humans because it protects us from getting sun burnt and from our body receiving too much radiation.
Answer:
it protects us from radiation from the sun
If you stand on the edge of a canyon and shout, you will hear an echo. That is,
some time after you shout, you will hear your shout again coming up from the
canyon. Describe what is happening to the sound of your shout to make this
happen.
Answer:
The soundwaves bounce off the canyon walls and back to you
Because sound waves bounce off surfaces and rebound, the shout will be reflected back to you. Often, music is captured in a space that is soundproof.
What is Sound wave?A sound wave is indeed the pattern of disruption brought on by the movement of energy moving through a medium because it propagates away from the origin of the sound (such as air, water, or any other kind of liquid or solid matter). Pressure waves are produced when an object vibrates, such as a ringing phone, and these waves are known as sound waves.
A sound source, like a vibrating speaker's diaphragm in a stereo, produces the sound waves. Vibrations are produced in the medium surrounding the sound source. The medium continues to vibrate as the source does, and as they do, the vibrations move away from where they originated at the sound's velocity, resulting in the formation of the sound wave.
Thus, the shout will be reflected back to you since sound waves bounce off objects and rebound. Music is frequently recorded in a room that is soundproof.
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Which of these locations is most likely to experience moderate climate throughout the year?
Answer:
b
Explanation:
The location that is most likely to experience moderate climate throughout the year is C.
The location C of the map will experience moderate climate because it is a coastal region of the map.
Moderate climate weather is described as a weather condition that occurs during the day, as cool air from sea rush towards the land and during night, as cool air from the land rush towards sea.
Because location C is a coastal region which means that the location is surrounded by land which better absorbs and radiates heat much faster than sea.
Therefore, the location that is most likely to experience moderate climate throughout the year is C.
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During which process is converted into a sequence amino acks protein production?
Answer:
Protien Synthesis
Explanation:
The diagram shows a normal red blood cell and a shrunken red blood cell, both of which are in salt water.
In which direction did the water move to make the red blood cell shrink? Why did water move in that direction?
Answer:
The red blood cell shrank because water moved out of the cell, which happened because the concentration of salt outside the cell was greater than the concentration of salt inside the cell. Because the salt molecules take up space in the salt water, the concentration of water outside the cell was less than the concentration of water inside the cell. Therefore, water moved out of the cell from the area of high concentration to the area of low concentration, causing the cell to shrink.
Explanation: This was the sample response
Which descriptions refer to cirrus clouds? Select three options.
Answer:
wispy, high altitiudes, and ice crystals
Explanation:
Answer:
C
Explanation:
So-called "dark matter" cannot be directly observed because
A it makes up less than one-tenth of the total mass of the universe
B it gives off no radiation
C it moves too quickly to be captured in space telescope images
Answer:
B. it gives off no radiation
Explanation:
Dark matter is so named because it neither absorbs nor emits light and therefore cannot be directly observed.
Answer:
B
Explanation:
it gives off no radiation
If the eyes and jaws of a corpse appear stiff, about how much time has likely
passed since death?
Answer:
between 1 and 6 hours and believe the average though is 2-4
Answer:
big gangs
Explanation:
ASAP WILL GIVE BRAINLEST
Before the discovery of the microscope, Linnaeus could classify organisms only into two kingdoms. More kingdoms were introduced later. What characteristic of science does this show?
It is permanent.
It is changeable.
It is always accurate.
It is based on predictions.
Answer:
It's changeable
Before the microscope, Linnaeus classified organisms only separated in two kingdoms, while more were introduced later. So, they were only classified in two kingdoms, they can be changed and classified to more than two.
Answer:
It is changeable.
Explanation:
How does disease affect blood pressure
Explanation:
The body has lots of mechanisms that can control the blood pressure, plus, changing the amount of blood the heart pumps, the diameter of the arteries, and volume of blood in the bloodstream. When a disease causes blood pressure to stay high, low, or in between, problems can arise.
Which of the following sampling techniques might a scientist use to count a population of zebras that constantly move around the savanna in search of food?
O
oo
quadrat
direct counting
indirect counting
None of these choices are correct
Back Next
All Previous
What is the effect of wildfires on biodiversity?
Answer:
it damages the earth's atmosphere and harm animals and the air we breath
Answer:
its a
Explanation:
well the answer makes sense because it might decrease some trees but it also gets rid of the bad and rotting trees so more vegetation can grow
What is a purine and a pyrimidine? Name them.
Answer:
Purines and Pyrimidines are nitrogenous bases that make up the two different kinds of nucleotide bases in DNA and RNA. The two-carbon nitrogen ring bases (adenine and guanine) are purines, while the one-carbon nitrogen ring bases (thymine and cytosine) are pyrimidines.
Explanation:
Oxygen released during photosynthesis comes from
A. ATP
B.H2O
C.CO2
D.C6H12O6
Answer:
B. H2O
Explanation:
Answer:
I believe it is D.
Explanation:
Through chemical reactions, leaves use the carbon and the hydrogen and form a carbohydrate (C₆H₁₂O₆). The extra oxygen is released as a byproduct. This is the oxygen that we use when we breathe.
Three gel cubes similar to those from the previous
screens have been placed in a colored solution that
seeps into the gel much like nutrients enter a cell.
Use the slider to see how the solution affected the
gel cubes after some period of time.
2. How does this model support the conclusion that
cells need to have a high amount of surface area
relative to their total volume?
Answer:
These gel cubes can be thought of as representing individual cells. As the cubes interact with their surroundings based on the amount of surface area and volume they have, the efficiency movement of substances in and out of cells depends on the two attributes as well. Greater surface area will mean more efficient rates of diffusion, which implies a smaller surface area to volume ratio is ideal for a biological cell.
Hope that answers the question, have a great day!
After some period the gel cubes will become Turgid
The higher the surface area the more efficient The diffusion rate
When The gel cubes are placed inside a colored solution the solution will start seeping into the gel cubes as the gel cubes continues to remain in the colored solution. Hence the gel cubes will become Turgid after some period of time.
The surface area to volume ratio plays a major role in the rate of diffusion of solvents inside the gel cubes ( cell ). Therefore the higher the surface area to volume ratio, the more efficient diffusion rate the cells would have.
Hence we can conclude that After some period the gel cubes will become Turgid The higher the surface area the more efficient The diffusion rate
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Although some data related to your question is missing a general answer is provided within the scope of your question
Losing 100 orangutans a week is an astonishing number. Within your lifetime they could become extinct in the wild because of human impact. We use palm sugar in many products consumed and other things. Do you feel that it could be said we have a parasitic relationship with orangutans? Defend your answer.
Answer:
if the orangutans eat the fruits, basically their place of residence is their only means obtaining food and if the human continues to cut trees and destroy forests, the fruits will be lost and the monkeys will starve and thus could become extinct.
Explanation:
What do tuberculosis, HIV, and malaria all have in common?
Group of answer choices
A. They all can be spread through body fluids, such as blood
B. They all respond to antibiotics.
C. They are all spread by parasites.
D. They are all non-transmissible diseases.
Answer:
"B.) They all respond to antibiotics." Is the correct answer.
Explanation:
Tuberculosis cannot be spread through blood, it is an airborne illness.
Malaria is spread through mosquitoes
They are all Transmissible diseases.
So, the only one that fits this question is B.
Observations and measurements are both types of _____ that can be
collected during an experiment.
Answer:
Data
Explanation:
A skateboard manufacturing company has had problems with the wheels on its skateboards cracking and causing injuries. An engineer for the company knows of a material that he thinks will make the skateboards safer. What would be the best step for the engineer to take next?
He should publish a report about the innovation and its impact on public safety.
He should conduct tests using computer models to determine the safety impact.
He should immediately begin producing all skateboards with the new material.
He should convert production of half of the skateboards to use the new material.
Answer:
Option B, He should conduct tests using computer models to determine the safety impact.
Explanation:
The better performance of material proposed by engineer will be treated as a claim without any proof, if the production of the stake board starts without testing it.
In order to verify his/her statement, the engineer needs to conduct durability and strength test on stake board having the “proposed material” in its structure.
After the test results are obtained, they must be vetted through publication as research paper.
Hence, option B is correct
The membrane that lines the thoracic cavity walls is the
What is the difference between weather and climate?
Gymnosperms and angiosperms, which are seed plants, alternate between ( 2 ) generations.
Gymnosperms are non-flowering plants with (EXPOSED SEEDS)
and angiosperms are flowering plants with . ( PROTECTED SEEDS)
Sporophytes produce spores for reproduction. In seed plants, the male reproductive structure produces , (MICROSPORES)
and the female reproductive structure produces . (MEGASPORES)
Gametophytes produce (GAMETES)
through the process of . (MITOSIS)
Answers are in the question yw :)
Answer:
I've corrected the relevant part in the false statement to make it true. Please see below:
Gymnosperms and angiosperms, which are seed plants, alternate between (2) generations.
The statement is true. It alternates between haploid and diploid stages.
Gymnosperms are non-flowering plants with EXPOSED SEEDS and angiosperms are flowering plants with PROTECTED SEEDS.
This statement is also true. The egg is fertilized inside of the flower.
Sporophytes produce spores for reproduction. In seed plants, the male reproductive structure produces MICROSPORES and the female reproductive structure produces MEGASPORES.
The statement is correct. The male gametophyte will fertilize the female gametophyte, known as the egg, to produce a zygote.
Gametophytes produce GAMETES through the process of MITOSIS.
False. The process of meiosis results in gametes, and not mitosis.
Hope that answers the question, have a great day!
Answer:
answer in picture
Explanation:
The top, exposed layer a has undergone
A. an uncomformity
B. erosion
C. tilting
D. folding
P.S. I NEED THIS LIKE NOW!
I WILL MARK BRAINLIEST
Which is a FALSE statement about the blood that leaves the heart through the aorta?
A. It is oxygenated.
B. It contains high levels of sugar.
C. It contains high levels of carbon dioxide.
D. It is transported by the arteries to cells throughout the body.
hello,
here is your answer:
**********
Statement C is false. The blood that leaves the heart through the aorta is rich in oxygen.
**********
hope this helped,
:)
