Answer:
The drying of the pond bottom is the most practical cheap and effective method of eliminating undesirable species in the pond prior to the culture period. Drying oxidizes harmful chemical substances especially sulphides and facilitates mineralization of organic matter. The pond is dried until the soil cracks or when it is firm enough to hold one's weight without sinking more than 5 cm on walking over the surface.
Hope that answers your question.
Death rates in a population, such as the Moose on Isle Royale, can be affected By?
Answer + Explanation:
Moose numbers boomed during the wolf drop-off but have plunged since. Predation accounted for nearly 9 percent of deaths over the past year. Other factors were blood-sucking tick infestations and malnutrition caused by a shortage of balsam fir, the moose's primary winter food source.
what is a good that last at least 3 years?
Answer:powdered milk
Explanation:
What gas plants receive as food
Answer:
Carbon Dioxide
Explanation:
hope this helps!!
PLEASE. I NEED HELP ASAP!!!
What do you think would be the hardest part of a career in forestry? How could you overcome this challenge? Explain your answers.
Answer:
the math. pay money.
Explanation:
drop the mic.
The speed of sound is:
186,000 miles per hour
1,100 feet per second
86,000 miles per second
Which is an example of an adaptation?
A. bald spots on an old cougar
B. new foods found by squirrels
C. viruses passed to humans
D. white hair of adult polar bears
The correct answer is D. White hair of adult polar bears
Explanation:
Adaption refers to a natural process that involves a change in behavior or traits in a species or population to make this more suitable to survive. Indeed, adaptations help an organism to survive in a specific environment or adapt to changes. Besides this, adaptation is the result of processes such as natural selection through which more fit organisms survive and pass fitness traits to new generations.
According to this, the one that is an example of adaptation is the "white hair of adult polar bears" because this phenotype (visible trait) helps polar bears to camouflage in the Artic, in this way, polar bears can avoid possible predators and have more chances to hunt. This means, this trait makes polar bears more suitable to survive and due to this, it is an adaptation.
What is a chromosome?
Chromosomes are structures formed by a DNA molecule associated with protein molecules. In prokaryotic cells, we observe a circular chromosome; in eukaryotes, chromosomes are linear and located inside the nucleus.
Is it possible for a change of a single nucleotide in DNA to have
an observable effect on phenotype? Include an example to support your answer
Answer:
A point mutation is when a single base pair is altered. Point mutations can have one of three effects. First, the base substitution can be a silent mutation where the altered codon corresponds to the same amino acid. Second, the base substitution can be a missense mutation where the altered codon corresponds to a different amino acid. Or third, the base substitution can be a nonsense mutation where the altered codon corresponds to a stop signal.
what name is given to the bending of the ray at A?
Answer:
Refraction
Explanation:
When light bounces off an object, it is called refraction.
What happens if human cells contribute to the growth of a chimera brain? Should the chimera be considered a person
Answer:
No. it should be considered its kin (Kind) as a chimera
Explanation:
The reason why is because lets say we have a human. Totally normal and fine, but then there cell's get all jittery and there mind gets transformed. So then they start acting like a wolf, because the cells contributed to the growth of a wolf brain. They'd be considered a Were-Wolf then would be put in asylum to be studided and to keep humanity safe. So yes by law they are still a person. But in consideration, No they are not to be considered a person.
How many kingdoms are there in the domain Bacteria?
OA. 3
OB.A
OC. 2
OD. 4
Answer:
c
Explanation:
The classification system for bacteria has undergone several revisions, and different sources may give slightly different answers. However, based on the most widely accepted classification system, there are 2 kingdoms in the domain Bacteria:Kingdom Eubacteria (true bacteria)Kingdom Archaebacteria (ancient bacteria or archaea)Therefore, the answer is option C, 2.
In the domain Bacteria, there are two recognized kingdoms: Eubacteria and Archaebacteria. Eubacteria includes the vast majority of known bacterial species, while Archaebacteria includes a smaller group of bacteria that are often found in extreme environments such as hot springs, salt flats, and deep-sea hydrothermal vents.So, the correct answer is C, 2.
Why do different individuals of the same species have different traits?
A.
Individuals have differences in their genes that result in protein variations.
B.
Individuals have different genes that produce proteins with completely different functions from other individuals.
C.
Individuals have proteins that produce genes with completely different functions from other individuals.
D.
Individuals have different proteins that cause variations among their genes.
Individuals of the same species have different traits because they have different genes which code for different proteins. B would be the correct option.
VariationsOrganisms of the same species can have different traits due to a difference in their proteins.
Genes are responsible for proteins and proteins are an expression of traits. Thus, with different proteins come different traits.
Hence, once there is a difference in the DNA sequence of organisms, different proteins will be produced, and different traits will be expressed.
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Studies of primates compared to other orders of mammals show that primates exhibit
a. longer periods of gestation b. longer periods of infancy c. longer adolescence periods
d. longer life spans e. more permanent male to group bonding f. all of these
Hyd Gary , its been a minute.
The correct answer would be F. All of these.
Primates include mammals such as humans , apes , monkeys , lemurs ( etc ). They are normally tree dwellers ( with the exception of humans ).
Hope this helps <3
Hey, Gary.
Answer:
F. All of the aboveExplanation:
Primates is an animal order including lemurs and tarsiers and monkeys apes and human being. Lemurs have large-eyed arboreal having foxy faces and long furry tails.
Tarsiers is a nocturnal arboreal primate of Indonesia and the Philippines having huge eyes and digits ending in pads to facilitate climbing; the only primate that spurns all plant material as food living entirely on insects and small vertebrates.
PUT THESE ANSWERS ON THE RIGHT SIDE OF THE SCANTRON)
1. ENTR MEANS _______
2. AMYLO MEANS _______
3. ______ MEANS LIVER
4. ______ MEANS STOMACH
Answer:
PUT THESE ANSWERS ON THE RIGHT SIDE OF THE SCANTRON)
1. ENTR MEANS _______
2. AMYLO MEANS _______
3. ______ MEANS LIVER
4. ______ MEANS STOMACH
which item would be most appropriate to measure on the triple beam balance in the gizmo
Answer:
ok, here is your answer
Explanation:
AI-generated answer
The triple beam balance is used to measure mass, which is the amount of matter in an object. Therefore, any item that needs to be measured in terms of its mass can be measured using the triple beam balance in the Gizmo. Some examples of items that can be measured using a triple beam balance are:
- Solids such as rocks, metals, and minerals
- Liquids such as water, oil, and alcohol
- Powders such as flour, sugar, and salt
To measure an item on the triple beam balance in the Gizmo, place the item on the pan and adjust the riders on the beams until the pointer is at zero. Then, move the riders along the beams to find the mass of the item. Make sure to read the mass from left to right, starting with the largest beam and moving to the smallest beam.
In summary, the most appropriate item to measure on the triple beam balance in the Gizmo is any item that needs to be measured in terms of its mass.
mark me as brainliestWhich sentence best explains a possible result of climate change on earth
A. In the northern hemisphere, ideal conditions for farming will shift
north.
OB. Extreme heat, flooding, and drought will each increase crop yields.
C. Cold regions will become less appealing to tourism.
D. Invasive plant species will likely lose habitat.
92ml 3.0 fl oz what is the ratio
The ratio between 92 mL and 3.0 fl oz is 46 : 44, or it can be further simplified to 23 : 22.
To find the ratio between 92 mL and 3.0 fl oz, we need to convert the units to a common measurement. Let's convert 3.0 fl oz to milliliters (mL).
1 fluid ounce (fl oz) is equal to approximately 29.5735 milliliters (mL).
Therefore, 3.0 fl oz is equal to 3.0 * 29.5735 = 88.72 mL (rounded to two decimal places).
Now we can express the ratio between 92 mL and 88.72 mL:
92 mL : 88.72 mL
Simplifying the ratio by dividing both sides by the greatest common divisor, we get:
46 : 44
So, the ratio between 92 mL and 3.0 fl oz is 46 : 44, or it can be further simplified to 23 : 22.
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Which term describes what happens when a wooded area is cut down to build a shopping mall?
what are the instructions that control a cell's activities found
I really need help for homework Biology 102 and it's Due: Feb 27, 2023 at 11:59 PM EST
Question 8 part 3
Answer:
1) This happens in the nasal cavity or nostrils. The cilia (nasal hairs) are the ones responsible for this in which the particles are filtered. Then in the back of the throat is where the nasal cavity and mouth meet is the pharynx.
2) This is the correct function. There are four stages of gas exchange that occur when oxygen is breathed into the body: ventilation, pulmonary gas exchange, gas transport, and peripheral gas exchange. The processes of gas inhalation, exhalation, exchange at the alveoli, transportation to the blood, and subsequent diffusion through different cellular membranes situated in body tissues are described. The lungs contain millions of alveoli, which are surrounded by capillaries. Each bronchiole ends with a collection of tiny air sacs known as alveoli. Capillaries, which are very small blood arteries, surround alveoli. These air sacs are filled with oxygen-rich air from the air you breathe in. The exchange of gases takes place here.
3) It travels down both, not just one. The air travels passed the larynx and into the trachea. The trachea is divided into two tubes which are known as the bronchial tubes. The left one leads to the left lung and the other to the right lung. From here the air is brought to even smaller tubes known as bronchioles.
4) Air enters from the outside during inhalation to either these two openings: nostrils or external nares. The cilia serve the purpose of capturing large inhalation particles. The internal nares are the openings between the nasal cavity and the pharynx. Hence, air enters into the nasal cavity.
5) From the pharynx, air flows through the glottis to the trachea and the cycle continues. The glottis and two or three other cartilages form the larynx, a simple tubular structure in most reptiles.
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what occurs when an inducer is added to a medium containing an organism with a metabolic pathway controlled by a repressor?
Answer: Here is the option.
A. The inducer combines with the repressor and causes the repressor to bind to DNA
B. The inducer combines with the repressor and causes the repressor to dissociate DNA
C. The inducer combines with the substrate and blocks induction
D. The inducer combines with the substrate and activates induction
E. The inducer does not combine with repressor but functions as a chaperone molecule for the enzyme-substrate complex
The correct option is C.
The inducer combines with the substrate and blocks induction
Explanation:
Enzymes inducers are drugs or enzymes that Induces or bring out the activity of enzymes been expressed.
This drug increases the metabolic activity of an enzyme either it binded to the enzymes or in a away cause an increase gene code of an enzyme to be expressed.
When an inducer is added to a medium containing an organism with metabolic pathway controller by a repressor it will combine with the repressor and block induction because an enzyme repressor regulate enzyme activity in a negative way by reducing it's synthesis rate.
4) A molecule has been isolated from a cell. The molecule is found to be in a ring shape made up of carbon, hydrogen, and oxygen atoms in a 1:2:1 ratio. Choose all the statements that apply to this molecule. A) The molecule is an enzyme. B) The molecule is likely a sugar. C) The molecule is likely a carbohydrate. D) The molecule is produced during photosynthesis. E) The molecule comprises the largest component of the cell membrane.
1 What does the codon sequence on the mRNA strand determine?
A The gene sequence of the DNA
B The amino acid sequence of the polypeptide
C The codon that is signaled
D The signaling sequence
2 What portion of the DNA is also known as a gene?
A The coding sections
B The non-coding sections
C The mRNA strand
D The polypeptide sequence
1. The correct answer is B.
2. The correct answer is A.
The codon sequence on the mRNA strand determines the amino acid sequence of the polypeptide.
The coding section is the portion of the DNA that is also known as a gene. Genes are the functional units of DNA that provide the instructions for making proteins. They are composed of coding cells, also known as exons, that contain the information needed to build the polypeptide, and non-coding sections, also known as introns, that do not.
The codon sequence on the mRNA strand is translated by the ribosome during protein synthesis. Each codon, which is a sequence of three nucleotides, corresponds to a specific amino acid. The ribosome reads the codon sequence on the mRNA strand and adds the corresponding amino acids to the growing polypeptide chain. This process is called translation.
In DNA, genetic information is encoded in the sequence of nucleotides, which are the building blocks of DNA. Genes are specific segments of DNA that contain the instructions for making a specific protein. These instructions are encoded in the sequence of nucleotides within the coding sections of the DNA, also known as exons. The non-coding sections, also known as introns, do not contain instructions for making proteins, but they play important roles in the regulation of gene expression.
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What would be the correct notation for describing a deletion in the short arm of chromosome 6 at region 2, band 4
The correct notation would be Del(6)(p24). The word 'del' means deletion.
What is chromosome notation?Chromosome notation refers to alphanumeric notations used to identify certain chromosome arrangements.
In this case, chromosome notation denotes a deletion (del) in the short arm (p arm) of chromosome 6.
The stained band of the chromosomes in the karyotype is denoted by the number 24.
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A skin cell should generate an exact copy of itself. Through which process would this occur? (NEED ASAP!!)
Answer: meiosis and mitosis.
Explanation:
Formulating a Hypothesis Write a hypothesis about the effect of a strong odor on earthworm behavior. Use the "if... then.. because..." format, and be sure to answer the lesson question, "How is earthworm behavior affected by external stimuli?"
What genetic trait allows organisms to survive natural selection in their
environments?
Answer:
Adaptations
Explanation:
Show a Punnett square for a cross that allows F1 to self-pollinate (Hint: a cross between the offspring).
From this cross of individuals that are heterozygous for a particular trait, the expected genotypic ratio of the F1 generation would be 1 AA: 2 Aa: 1 aa. The expected phenotypic ratio would be 3 individuals with the dominant trait (A_) to 1 individual with the recessive trait (aa).
What is the Punnett square for the self-pollination of F1?Consider a cross between two individuals that are heterozygous for a particular trait.
Let A represent the dominant allele and a represent the recessive allele.
The genotypes of the parent generation (P generation) are Aa × Aa.
Punnett square for this cross:
| A | a |
-------|------|------|
A | AA | Aa |
-------|------|------|
a | Aa | aa |
-------|------|------|
The Punnett square shows the possible combinations of alleles from the parent generation and predicts the genotypes and phenotypes of the offspring in the F1 generation.
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produce three small cells that
Meiosis and unequal cytoplasmic division in seed plant
disintegrate and one large megaspore.
O a gametophytes
O b. pollen sacs
O c pollen grains
O d. microspores
o e ovules
Meiosis and unequal cytoplasmic division in seed plant produce three small cells that disintegrate and one large megastore
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A scientist wants to use a small plant that can take levels of pollutants, that would
kill other plants, into its body tissues to develop plants that will remove
contaminants from polluted ecosystems. Explain how this research requires an
understanding of genes.
This research requires an understanding of genes because the ability of a plant to take up and accumulate pollutants is often controlled by specific genes. Scientists can use genetic engineering techniques to identify and manipulate the genes that regulate a plant's ability to absorb and detoxify pollutants.
How this research requires an understanding of genes?Example, scientists may identify a gene that produces a protein that enables a plant to absorb heavy metals from contaminated soil. They can then use genetic engineering techniques to transfer this gene to other plant species, allowing them to also take up heavy metals from the soil.
Furthermore, understanding the mechanisms behind the expression of specific genes can help researchers to identify the most effective plant species and genetic modifications for remediating specific types of pollution. For example, some plants may be better suited for removing organic contaminants from water, while others may be more effective at absorbing heavy metals from soil.
Overall, genetic research plays a critical role in identifying the genes responsible for a plant's ability to take up and accumulate pollutants, and in developing new plant species that can help remediate contaminated ecosystems.
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