Answer:
True
Explanation:
When meiosos occurs it creates the egg or sperm cells (depending on the gender). It makes sure that when reproduction is occuring that everything is ok and nothing disrupts the process of meioses.
PLEASE HELP!! BIOLOGY
Which of the following is NOT an element in the process of natural selection?
a
Individuals struggle for survival.
b
Organisms cause environmental change.
c
Fitness with your environment can lead to an increase in your population.
d
Genetic variation exists within a species.
Answer: what I learned is that natural selection needs 4 things
Explanation:
over production
genetic variation
i don’t remember the rest but those are the main ones so that there’s lots of offspring in case some cant survive
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what planet was the final destination of the opportunity rover
Answer:
mars
Explanation:
White blood cells is also known as
Answer:
White blood cells are also called leukocytes. They protect you against illness and disease.
Explanation:
Hope that helps
can I have brainliest
PLEASE ANSWER WITH CLEAR AND CORRECT EXPLANATION!!
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DUE: IN 35 MINUTES
Answer:
5 fats
Explanation:
Mark each statement True or False
_Skeletal muscles are the muscles that move your bones; these
muscles are voluntary, meaning they are under your control
_Eventually, all skeletal muscles get tired.
_Cardiac muscle is found in your heart and it is involuntary:
that is, NOT under your control.
_The best way to keep your muscles healthy is to use them.
True Skeletal muscles are the muscles that move your bones; these
muscles are voluntary, meaning they are under your control
True Eventually, all skeletal muscles get tired.
True Cardiac muscle is found in your heart and it is involuntary:
that is, NOT under your control.
True The best way to keep your muscles healthy is to use them.
Which pond would most the most likely to lead to terrestrial succession?
A) Pond A
B) Pond B
C) Pond C
D) Pond D
Answer:
pond d because u know what a turtle can leave in pond fish can live also other aquatic animal but a bird can't kive so it will die in water for a long time and will not be able to survive and it will cause terrestrial succession
The pond that should be most likely to lead to terrestrial succession should be considered as the pond d.
What is terrestrial succession?In terms of terrestrial ecosystems, the succession should arise either at the primary or the secondary succession. here the primary succession should be the type of succession where it arise at the time when the area should experience the disturbance.
Also it does not have the survival of the original species
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BEST GETS BRAINLIEST.
As The human population increases, so does the consumption of natural resources (fossil fuels, clean water, clean air etc.) What type of impact does this have on our natural ecosystem and environments.
(pls write a paragraph thank u)
Answer: The impact of so many humans on the environment takes two major forms: consumption of resources such as land, food, water, air, fossil fuels and minerals. waste products as a result of consumption such as air and water pollutants, toxic materials and greenhouse gases. Population is growing rapidly, far outpacing the ability of our planet to support it, given current practices. Overpopulation is associated with negative environmental and economic outcomes ranging from the impacts of over-farming, deforestation, and water pollution to eutrophication and global warming. Fossil fuels produce large quantities of carbon dioxide when burned. Carbon emissions trap heat in the atmosphere and lead to climate change. In the United States, the burning of fossil fuels, particularly for the power and transportation sectors, accounts for about three-quarters of our carbon emissions. Population density can have a negative impact on our environment and natural resources. These pressures can lead to deforestation, result in overcrowding, and could lead to the destruction of our planet's delicate ecosystem. Growing populations use large amounts of nonrenewable resources like timber, coal, and oil. Irrigation, for example, uses per calorie less land but more water, fertilizer, and/or capital. The variation of land quality also interacts with development. Population growth increases food demand and therefore the demand for agricultural land. Poverty is believed to be the leading cause of overpopulation. A lack of educational resources, coupled with high death rates leading to higher birth rates, result in impoverished areas seeing large booms in population.
Explanation:
anyone know the phylum name for horsetail?
Phylum name for horsetail : Sphenophyta
APRIL 3
Scientists have many problems that they are working on but are unable to reach a useful solution. There are a number of
constraints that can make problems unable to have a solution. Match the current scientific problem and the major
constraint to finding a solution.
Available technology
Alternative energy resources
Cost and technology
Identifying life on other planets
Political and moral issues
Ocean desalination
Political issues and public interest
Using nuclear fusion as an energy source
Cost
Using stem cell technology to cure disease
Answer:
Ocean desalination, Using nuclear fusion as an energy source and using stem cell technology to cure disease.
Explanation:
Ocean desalination is the major problem that occurs due to removing of nutrients that is present in the ocean water because of human activities. These nutrients are essential for the marine animals so for solving this problem, we should use other alternative energy resources in order to reduce ocean desalination. Using nuclear fusion as an energy source is a good idea but it can't be implemented on the earth because it requires 100 million degrees Celsius which is impossible to generate. Using stem cell technology to cure disease is a great idea which can cure many diseases in the human body. This available technology is used by replacing damaged cells with the healthy cells.
If a specific kind of protein is not continually used by a cell, the gene for that protein is _________________________.
Answer: what are the answer choices?
Explanation:
Answer:
The gene for the protein is turned on and off at different times.
Explanation:
The turning on and off of the gene is described as gene regulation. This process is important because it enables the cells to react quickly to the changes in the environment.
Note that , this process mostly occur at transcription level during gene expression , and help in determining the amount of protein made by a gene.
Identify the main structures of a plant.
A
B
C
Answer:
A: Leaves
B: Stem
C: Roots
Answer:
A
✔ Leaves
B
✔ Stem
C
✔ Roots
Explanation:
edge2021
What is the relative humidity when the dry- bulb temperature is 16°C and the wet-bulb temperature is 14°C?
Answer:
The answer is 80%.
Explanation:
The relative humidity will be 80 %.
What is relative humidity?The amount of water vapor in the air, represented as a proportion of the highest quantity of water vapor the air could contain simultaneously temperature, was known as humidity levels, referred as relative humidity.
Calculation of relative humidity.
It can be calculated as:
Relative humidity = Actual vapor / saturation vapor density × 100
Relative humidity = 14 / 18 × 100
Relative humidity = 0.7777 × 100
Relative humidity = 77%.
Therefore, the relative humidity will be 77 %.
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what is the mass in grams of 300 ml of salt water with a density of 1.30 g/cm3
Answer:
The mass of salt water is 390 grams
Explanation:
To calculate the mass of salt water, we use the equation:
\text{Density of substance}=\frac{\text{Mass of substance}}{\text{Volume of substance}}Density of substance=
Volume of substance
Mass of substance
Density of salt water = 1.30g/cm^31.30g/cm
3
Volume of salt water = 300 mL = 300cm^3300cm
3
(Conversion factor: 1mL=1cm^31mL=1cm
3
)
Putting values in above equation, we get:
\begin{gathered}1.30g/cm^3=\frac{\text{Mass of salt water}}{300cm^3}\\\\\text{Mass of salt water}=(1.30g/cm^3\times 300cm^3)=390g\end{gathered}
1.30g/cm
3
=
300cm
3
Mass of salt water
Mass of salt water=(1.30g/cm
3
×300cm
3
)=390g
Hence, the mass of salt water is 390 grams
Answer: 390 grams
Explanation: You should use an equation to get this answer.
Hope I could help! brainlist?plz
List various ways that humans impact the environment and change the ecosystems in which they live. Include your explanation how this can impact the population of animals that live in these ecosystems.
Answer:
Humans impact the physical environment in many ways: overpopulation, pollution, burning fossil fuels, and deforestation. Changes like these have triggered climate change, soil erosion, poor air quality, and undrinkable water.
Explanation:
Humans impact the physical environment in many ways: overpopulation, pollution, burning fossil fuels, and deforestation. Changes like these have triggered climate change, soil erosion, poor air quality, and undrinkable water.
what part of Arkansas are the crops grown?
The production of these crops is centered in the eastern third of the state but there are notable concentrations elsewhere, particularly in the river valleys of the Arkansas River (central Arkansas) and the Red River (southwest Arkansas).
What would happen to species if it stopped reproducing?
Answer:
The event that would be the result of a species halting its reproducing would be the species becoming endangered and eventually becoming extinct.
Explanation:
Since animals eventually die, the reproduction creates additional animals, in which replace the dead ones. If the species stopped its reproduction, the species would die off because there are no other animals of that species to replace the dead ones.
wich of the organic compounds (necessary for all living things) are responsible for storing and transmitting genetic information?
A.5-Carbon Sugar
B. Nucleic Acids
C. Phosfate groups
Explanation:
As I think ,Nucleic Acids is correct one.YOU CAN THINK ABOUT DNA.
How does a new mammoth egg cell get chromosomes from each of the parents?
Answer:
An egg or sperm only has half of the parent's sex chromosome pair. An egg will always have an X chromosome, since the woman's sex chromosome pair only has Xs. Sperm can have either an X chromosome or a Y chromosome. If a sperm with an X chromosome fertilizes the egg, the new cell will have two X chromosomes. One came from the father's sperm and one came from the mother's egg. Since the sex chromosome that is made is XX, the cell will grow into a girl baby.
Explanation:
Hope this helped Mark BRAINLIEST!!
mixing occur before the chromosomes are sorted into individual sperm or egg cells. Chromosomes from each pair in a mother or father, respectively, make contact and exchange pieces of DNA, creating hybrid chromosomes.
What is chromosome ?A chromosome is a thread-like structure present in the nucleus of cells such as plant, animal and human cells and it is made of a molecule of DNA (Deoxyribonucleic acid) and histone proteins.
It is composed of three components, DNA, proteins and RNA, amount of the DNA content ranges from 30 to 40 %, the amount of proteins from 50 to 65%, and small amount of RNA from 1 to 10%.
Two types of protein present in DNA such as histone and non-histones proteins, histone constitute large amount (90% of total protein), whereas non-histone is present in small amount (around 10% of total protein).
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3. Which structure protects the developing embryo of a beech tree?
A. cotyledon
B. cuticle
C. seed coat
D. stomata
Answer:
Seed Coat
Explanation:
if a woman is found to have damage to both of her ovaries, can the woman still get pregnant?
Answer:
It depends on how bad the damage is
Explanation:
tRNA is responsible for interpreting the mRNA codons and bringing amino acids to the ribosome, in a word this process is known as:Required to answer. Single line text.
(2 Points)
Answer:
translation
Explanation:
fjdodkfksldmfnsks
How large was Biosphere 2?
A.
1 acre
B.
3 acres
C.
10 acres
D.
25 acres
Answer:
B
Explanation:
it was 3.14 acres but that is closest to 3 Acres so the answer is B
it says the ground was 40 Acres but that isn’t an option so i went with floor area which was 3.14 so i would say B
Answer:
Your answer would be B
Explanation:
Groundhogs inhabiting a meadow environment drink water and rely on plants, including clover, for food. Which of the following terms describe both the water and the clover that the groundhogs consume? Choose the two that apply.
A. limiting factors
B. abiotic factors
C. biotic factors
D. resources
The following terms describe both the water and the clover that the groundhogs consume are:
Abiotic factors Biotic factorsWhat are the factors that affect population size?The 2 main aspects affecting denizens growth are the birth rate and death rate .
People development may also be impacted by people coming into the population from someplace else or leaving the residents for another region.
Thus, option "B" and "C" is correct, Abiotic factor and Biotic factors.
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Describe the pathway of an air molecule entering from the nose.
Answer:
Air enters through the nose (and sometimes the mouth), moves through the nasal cavity, the pharynx, the larynx, enters the trachea, moves through the bronchi and bronchioles till the alveoli.Jun
Explanation:
8. Two heterozygous purple flowered plants are crossed.
What percentage of the offspring are purple?
white?
Answer:
75% chance of purple, 25% of white
Explanation:
Heterozygous means having two different alleles of a gene
This must mean they are Purple dominant and white recessive
This will be represented as Pw
[tex]\left[\begin{array}{ccc} &P&w\\P&PP&Pw\\w&Pw&ww\end{array}\right][/tex]
This, called a punnet square, calculates the probability of the gene outcome. The top Pw represents one parent and the Pw on the left side represent the other.
In the diagram, each combo of letters ( PP, Pw, Pw, ww ) represents a 25% of what gene the offspring will have. PP means it'll be purple, and so does both Pw's. ww means white flowers though because there is no dominant trait and only recessive. This is the only way for a recessive trait to appear in a child.
Therefore there is a 75% chance of the offspring having purple flowers and a 25% chance of the offspring have white flowers.
Helpp pwzz i need help :DDD
Answer:
C) and E)
Explanation:
A), B), and D) would lead to a decrease in bison,
PLEASE HELP ONLY IF U KNOW!
This map shows the spread of the red fire ant after its introduction into the United States in Mobile, Alabama, in the 1930s:
Which statement best describes an abiotic factor that contributed to the success of this invasive species?
Presence of disease in the origin states
Mutual competition in the invaded states
Limited moisture across the Southern states
Increase in food availability in the invaded states
Answer:
My guess is “increase in food availability in the invaded states”
Explanation:
The statement best describes an abiotic factor that contributed to the success of this invasive species is option c.
Which states did red fire ant get into?The red imported fire ant become imported across the 1930’s and has unfold to infest extra than 260 million acres of land in 9 southeastern states, which include all or quantities of Florida, Georgia, South Carolina, Tennessee, Alabama, Mississippi, Arkansas, Texas and Oklahoma (Lofgren 1986, Sparks 1995).
This species has come to be very abundant, displacing many local ant species while abundant. It has the capability of spreading west and surviving in Southern Arizona and alongside the Pacific coast north to Washington (Vinson & Sorenson 1986).
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Which of the following is not something that the circulatory system is responsible for?
A. bringing carbon dioxide to your cells
B. bringing nutrients to your cells
C. bringing oxygen to your cells
Answer:
A
Explanation:
The circulatory system is responsible for bringing the carbon dioxide to your lungs to get it out his body.
Answer:
A. bringing carbon dioxide to your cells
Explanation:
I did the test I got it right
HELPP PLEASE - 15 Points - thanks :)
Explain why harmful mutations tend to disappear, while beneficial mutations become
widespread.
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Answer:
ocean currents
Explanation:
the ocean stores solar radiation and distributes heat