A community is concerned that its river has become polluted. Analysis of
water samples shows small amounts of over 20 different chemicals.
Which of the following is the most likely cause for the increase in
pollution?
A
The increase is due to agricultural point source pollution.
B
The increase is due to industrial point source pollution.
C
The increase is due to residential non-point source pollution.
D
It is impossible to determine.
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Answer:
B. The increase is due to industrial point source pollution.
Explanation:
Pollution is the release of harmful substances into land, air or water. The harmful or toxic substances are called POLLUTANTS. According to this question, a community discovers via analysis that its river is now polluted with small amounts of over 20 different chemicals.
This chemicals is a pollutant that can likely emanate from industrial companies and industries that produces these harmful chemicals as waste. Hence, the increase is due to industrial point source pollution.
Which of these answer choices best describes the overall effects that would occur in an animal that consumes this plant?
Answer:
The majority of ATP will not form.
Explanation:
The poison leaf plant, also known as gifblaar contains fluoroacetic acid, a compound that shut down the Krebs cycle that leads to less production of ATP because Krebs cycle drives the formation of electron carriers. These electron carriers are very important because these electron carriers carry the energy that is used to create a large number of ATP molecules in the final steps of aerobic respiration so we can conclude that majority of ATP will not form due to poison.
Use insulin and glucagon as examples, explain how negative feedback of these two hormones regulate the blood glucose level and maintains homeostasis. (No links or I'll Report
Answer:
glucagon works to counterbalance the effects of insulin.
Explanation:
when insulin is released, the blood sugar in the body decreases; however, when the blood sugar is low enough, the system instead releases glucagon which breaks down the stored sugar and balances the blood sugar level in the body. if the level goes too high then insulin will be released again.
Question 1
Which is the correct order of steps of mitosis.
1. Metaphase
II. Telophase
III. Prophase
IV.Anaphase
Answer:
III,I,IV,II
Explanation:
Always remember PMAT when looking at mitosis. That's the acronym. Prophase, Metaphase, Anaphase, Telophase.
Answer:
B or 3 1 4 2
Explanation:
prophase, metaphase, anaphase, telophase.
3 1 4 2
The increase of burning of fossil fuel can cauall of the following EXECPT....
Ozone layer depletion
Air pollution
Acid rain
Loss of biodiversity
Answer:
Acid rain as burning is fossil fuel doesn't lead to acid rain.
if you have 6% guanine how much of the other bases do you have? please hurry
100% total of all 4 bases and Guanine and Cytosine need to have 1:1 ratio and Adenine and Thymine need to have 1:1 ratio (This is the Chargaff's rules I think)
6% Guanine must also mean 6% Cytosine
6 + 6 = 12 100 - 12 = 88 88/2 = 44
So 44% of Adenine and 44% of Thymine
Explain at which point in the diagram the earth is at winter solstice, summer solstice, spring equinox, and fall equinox. Give the date for each.
Answer: September 23, June 22, March 21, December 22
During the Human Genome Project, scientists created a gene map showing the relative location of each known gene on every human chromosome. This map led to the discovery that the human genome is made up of about how many genes?
Answer:
Approximately 20,500 genes
Explanation:
The Human Genome Project (HGP) was a 13-year international research effort aimed at determining the entire DNA sequence of the human genome. The HGP was launched in 1990 and completed in April 2013. This project helped to identify and physically map all the genes of the human genome. The sequence obtained from the HGP has been a very useful point of reference in order to identify and characterize mutations associated with genetic disorders. The HGP predicted approximately 20,500 genes (each of them produces an average of three proteins), which are distributed in the 23 pairs of chromosomes in the cells of our body.
What is the relationship between photosynthesis and respiration with respect to energy
Answer:
Photosynthesis converts carbon dioxide and water into oxygen and glucose. Glucose is food for the plant. Cellular respiration converts oxygen and glucose into water and carbon dioxide. ATP is the energy that is made in the process.
Explanation:
how does carbon dioxide react with starch in plants?
Answer:
Higher concentrations of carbon dioxide make plants more productive because photosynthesis relies on using the sun's energy to synthesise sugar out of carbon dioxide and water. Plants and ecosystems use the sugar both as an energy source and as the basic building block for growth.
____________________ is a series of chemical reactions that convert light energy, water, and carbon dioxide into glucose and oxygen. Photoperiodism Cellular respiration Photosynthesis Pollination
Answer:
Photosynthesis
Explanation:
1. Within food chains, matter is
a) constantly increasing
b) constandy decreasing
c) always changing from one element to another
d) alavays recycled from one chemical form into
another
Answer:
C
Explanation:
When an organism eats anothee organism matter transfers
Cuáles son las características de la vida que no están presentes en un virus?
Answer:
을 수 있는 것입니다 수 있는 것입니다 수 있는 것입니다 수 있는 것입니다 수 있는 것입니다 것입니다
Explanation:
I'm actually a Korean I cannot understand that what you said.
During meiosis, homologous chromosomes line up next to each other. In some
cases, one arm of a chromatid crosses over the arm of another chromatid. What is
the result of this process?
the independent assortment of genetic material
the creation of an additional sex cell
continuity in the offspring cell's DNA
additional variation in the DNA of each sex cell formed
Crossing over is a mechanisms involved in introducing genetic variation. When the arm of a chromatid crosses over the arm of another chromatid, it results in additional variation in the DNA of each sex cell formed. Option D.
---------------------------------------
Crossing-over between homologous chromosomes (prophase 1), the random lining of homologous chromosomes (metaphase 1), and random fertilization are the mechanisms involved in genetic variation.
The Crossing-over events occur between two homologous chromosomes in the equatorial plane and make the daughter cells genetically different from the original one.
The Chiasma is the position where two homologous chromatids interchange genetic information, giving a place for new genetic material or information to be provided to descendants.
After crossing over, homologous chromosomes get separated again.
So, according to this information, when the arm of a chromatid crosses over the arm of another chromatid, it results in additional variation in the DNA of each sex cell formed.
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which property of water molecules explains the other properties listed below
A. Adhesion
B.Cohesion
C.Hydrogen Bonds
D. Polar Covalent bond
Explanation:
A. Adhesion
plzzzz mark me brainliest if it helps you then
The property of water that explains the other properties listed below is hydrogen bonds.
WATER MOLECULES:Water is a unique molecule with unique properties that distinguishes it. Water is made up of two atoms of hydrogen and one atom of oxygen joined together by covalent bonds. Each water molecule is joined to one another by hydrogen bonds. These hydrogen bonds is responsible for the unique properties exhibited by water including adhesion & cohesion, solubility etc.Therefore, the property of water that explains the other properties listed below is hydrogen bonds.
Learn more about hydrogen bonds at: https://brainly.com/question/4542860
Blood type is determined by multiple alleles and can be used to determine the possible parents of an offspring. In this case, the mother has blood type B, and her child has blood type A. There are two possible fathers for this child. The phenotype of one man is type O, and the phenotype of the other man is type AB. What is the genotype of the man who is the father?
A. IAIB
B. IAio
C. ioio
D. IBio
Answer:
A. IAIB
Explanation:
Since the child has blood type A and the mother is B, one man having blood type O makes it so that the child cannot be blood type A.
IAIB is the genotype of the man who is the father.
What are Genotypes?The type of variant present at a specific locus (i.e., region) in the genome is scored by what is known as a genotype. Symbols can be used to symbolize it.
For illustration, BB, Bb, and bb could be used to denote a certain gene variant. The actual DNA sequence, such as CC, CT, or TT, can also serve as a representation of a genotype.
In a single experiment, the genotypes at millions of sites in a genome can be determined using DNA sequencing and other techniques. Some genetics influence an individual's phenotype, or observable traits.
Therefore, IAIB is the genotype of the man who is the father.
To learn more about Genotype, refer to the link:
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What provides energy to muscles and helps keep
them strong?
Answer:
The source of energy that is used to power the movement of contraction in working muscles is adenosine triphosphate (ATP) – the body's biochemical way to store and transport energy. However, ATP is not stored to a great extent in cells. So once muscle contraction starts, the making of more ATP must start quickly.
Answer:
adenosine triphosphate (ATP)
Explanation:
Creatine phosphate can supply the energy needs of a working muscle at a very high rate, but only for about 8–10 seconds.
climate change storys
We pollute the environment with greenhouse gasses to the earth's climate is getting warmer
Which statement describes a possible effect of climate change? Choose all that apply:
A pond of water drying out due to changes in average temperature.
A bear eating lots of food to store fat before hibernation because it needs to stock up on energy for winter.
A beetle adapted to warm temperatures living longer in its habitat and thus killing populations of trees.
Squirrels burying pine cones to be able to eat them later.
Answer:
a pond of water drying out due to changes in average temperature
In rabbits, black fur (B) is dominant to brown fur (b). Consider the following cross between two rabbits.
Bb x Bb
B
b
B
1
2
b
3
4
Refer to the illustration above. The device shown, which is used to determine the probable outcome of genetic crosses, is called a
Answer:
Punnet square
Explanation:
Which is the best definition of a phylogenetic tree?
Answer: A phylogenetic tree is a branching diagram or a tree showing the evolutionary relationships among various biological species or other entities based upon similarities and differences in their physical or genetic characteristics.
Explanation:hope I helped (can I get braincrown)
Definition: A phylogenetic tree is a diagram that depicts the lines of evolutionary descent of different species, organisms, or genes from a common ancestor
Hope this helps!
In which domain would you place the kingdom archaebacteria?
Answer:
Explanation:
The kingdom you would put archaebacteria is the kingdom called archaebacteria
How are the Hawaiian honeycreepers an example of adaptive radiation?
There were a large variety of honeycreepers that first inhabited the island. They found many different niches, so they were all able to survive.
The honeycreepers that first inhabited the island were able to adapt as the island changed, so that population of birds was able to survive.
There was a diversification of honeycreepers (each with different beak shapes) to help fill various ecological niches.
Answer: In adaptive radiation, many different species evolve from a single ancestor species. Each new species evolves to exploit a different niche, such as food source. In the example above, Hawaiian honeycreepers evolved a range of bill forms in response to available food sources on the Hawaiian archipelago. The honeycreepers dispersed from one founder species, and evolved in response to natural selection based on different food sources in their isolated habitats provided by water. Seed-eating birds evolved thick, short beaks.
WILL GIVE BRAINLISTTT!!! After learning about the conditions under which extremophiles live, do you think it is reasonable to argue that life could probably exist on other planets? Explain.
Answer:
Yes, as extremophiles are able to live in extreme conditions, like the extreme conditions that many other planets have.
Explain the role of adrenaline in the formation of emotional memories.
6. Below, fill in the missing bases from this DNA molecule.
Answer: g and c, c and g, a and t, t and a, g and c, c and g, a and t, c and g, t and a, c and g, g and c, c and g, a and t. brainliest?
Explanation:
The missing bases from this DNA molecule are filled as below:
GC, CG, TA, AT, TA, GC, CG, AT, CG, GC, TA, CG, GC, CG, and AT. What is a DNA molecule?A DNA molecule may be defined as a molecule that comprises the biological instructions that construct each species unique in terms of genetic sequences.
The nucleotide bases are always bound to each other in a complementary form, i.e. A is bonded to T with the help of two hydrogen bonds, while C is bonded to G with the help of three hydrogen bonds.
Apart from this, according to Chargaff's rule, the amount of adenine is always equal to the amount of thymine, while the amount of guanine is always equal to the amount of cytosine.
Therefore, it is well described above.
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In pea plants, the allele for smooth pods (S) is dominant over the allele for constricted pods (s).
Which of the following pairs of terms are correctly matched?
Choose 1 answer:
Ss - phenotype; smooth pod - genotype
SS - genotype; constricted pod - phenotype
SS - phenotype; constricted pod - genotype.
SS - genotype; constricted pod - phenotype
Answer:
ss - genotype; constricted pod - phenotype
Explanation:
trust me Lol
Pea plants having gene control phenotype of pod shape S is dominant having phenotype smooth and phenotype constricted pods having s genotype, hence option d is correct.
What is the difference between genotype and phenotype?Phenotype is a physical observation of a trait which control by agene
and genotype is a genetic observation that can not be seen physically.
The allele which controls the phenotypic character of a plant is called the dominant over the other allele which can not show its expression, the allele is always present in a group but only the dominant will show its expression.
In a pea plant, if the allele for smooth is dominant over the other, it shows expression in allelic combination and masks the expression of constricted pods.
Therefore SS is the genotype and the constricted pod is the
phenotype, hence option d is correct.
Learn more about genotype and phenotype, here:
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Which of the following best describes Growing Degree Day total?
A. a measure of the amount of heat needed to encourage plant growth
B. a measure of the amount of heat a plant is exposed to over a single day
C. a measure of the amount of heat a plant must experience before reaching maturity
D. a measure of the amount of heat tolerance a plant demonstrates
Answer:
C.a measure of the amount of heat a plant must experience before reaching maturity
a deletion mutation occurs when what happens?
A. A nucleotide is removed from the DNA strand
B. An entire strand of DNA is added
Answer:
A) A nucleotide is removed from the DNA strand.
Explanation:
When you remove something, you are deleting it.
26. Which equation is NOT balanced?
a. 4H, +202 + 4H2O
b. H2 + H2 + O2 -> H2O + H2O
c. 2H2 + O2 -> 2H2O
d. 2H2 + O2 + H2O
Answer:d. 2H2 + O2 -> H2O
Explanation: