Answers
Answer:
Question 10: True Question 11: Competition and Variation
Explanation:
Natural Selection is when the animal with the best survival rates gets the right to mate. Every species wants to survive and by letting the animals with the best traits reproduce, it ensures their survival. This, of course, happens naturally.
Competition is to show whose fit and whose not and variation increases the chance of their survival. For example, if a whole species was exactly the same if one died of a disease then all of them would, because they would have the same immune system. But if there is variation, one might be vulnerable to the disease but the other might have protection from it. Meaning it could pass those genes to offspring because it was fit.
Hope this helped :)
Related Questions
What type of scientist would be the best qualified to perform genetic engineering to pro- duce seed that are more productive in agriculture? A. biochemist B. geologist C. molecular biologist D. paleontologist
Answers
The type of scientist best qualified to perform genetic engineering to produce more productive seeds in agriculture would be a molecular biologist, the correct option is C.
Molecular biologists specialize in studying the structure, function, and interactions of molecules within biological systems, including DNA and genes. Genetic engineering involves manipulating the genetic material of organisms, which requires a deep understanding of molecular biology principles.
Molecular biologists have the expertise to identify and isolate specific genes responsible for desired traits in crop plants, such as increased productivity or resistance to pests or diseases. They can then modify or introduce these genes into target plants to achieve the desired outcomes, the correct option is C.
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how many chromosomes are in the daughter cells after meiosis is completed?
Answers
Answer:
23 chromosomes
Explanation:
Each daughter cell will have half of the original 46 chromosomes, or 23 chromosomes. Each chromosome consists of 2 sister chromatids. The daughter cells now move in to the third and final phase of meiosis: meiosis II.
Answer:23. Just take half of 46 away and there's your answer.
Explanation:
Which sentence is true about inherited mutations?
Answers
Inherited mutations are permanent changes in the DNA sequence that makes up a gene.
These mutations can have various effects on an individual, it also increases the probability of developing certain genetic disorders. On the other hand, it can have advantageous effects too. The different types of inherited mutations are given below.
Germline mutation: This occurs in the egg or sperm cell and is passed to future generations.For example cystic fibrosis.Somatic mutation: This kind of mutation occurs in nonreproductive cells and is not passed to future generations.Inherited mutations can be checked using a diagnosis that identifies the changes in DNA. Genetic consulting is another solution.
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The question feels incomplete. Please provide some more details, ie, the sentence choices to choose the correct one.
Unlike a typical animal cell, this plant cell has an angular shape. The shape of a plant cell is due, mostly, to the presence of the
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which statements among those below is/are correct?i) all nuclides with 84 or more protons are unstable with respect to radioactive ) geiger and scintillation counters can detect some types of radioactivityiii) electron capture and positron production decay case the same changes in a and z of the parent nuclide.
Answers
The correct statements among those below are i) All nuclides with 84 or more protons are unstable with respect to radioactive and ii) Geiger and scintillation counters can detect some types of radioactivity.
The stability of a nucleus depends on the number of protons and neutrons and their ratio. With an increase in the number of protons, stability decreases because of an increase in the Coulombic repulsion between the positively charged protons. There is a minimum limit of the N/Z ratio for the nucleus to be stable. For elements with greater than 84 protons (starting with Polonium, Po), the N/Z ratio is less than the minimum stability value, making them radioactive and unstable.
The Geiger counter and scintillation counter, both are detectors used to measure radiation levels. The Geiger counter detects radiation by ionizing gas in a chamber with the help of a voltage source. The charged particles produced by the ionization create an electric pulse that helps sense the radiation. In comparison, a scintillation counter uses a crystal that gives off light when radiation interacts with it. The detector senses the emitted light, and the instrument measures the count rate of detected particles.
The statement is true since both instruments detect radiation by different methods and can detect different types of radiation.
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What are the correct answers?
Answers
Answer:
2 is 700 because it wants the total distance so we r gonna add 400+300=700
3 is change in velocity
Explanation:
What value of x makes this equation true?
0.6 x -5 = 0.1 x + 7
Answers
0.6x-5=0.1x+7
(subtract 0.1 from both the sides)
0.5x - 5 = 7
0.5x = 12 (bring 5 to the other side, then add)
x = 12/0.5
Shift the decimals of both 12 and 0.5 to the right by 1 decimal place. (This is needed to convert 0.5 to 5, since long division must divide by a whole number.)
x = 120/5
x = 24
Please help and thank you!
This is more Environmental science than biology.
Answers
Answer:
1. B
2. C
3. E
4. A
5. D
Explanation:
1. The dependent variable is that part of an experiment that is measured when collecting data.
2. Observation involves taking notice of things with your senses.
3. The control of an experiment is the variable that is normal or remained unchanged.
4. A hypothesis is a testable prediction.
5. The independent variable is the variable that is changed.
In your research on population dynamics of June beetles, you estimate that the population size is 3,000. Over the course of a month, you record 400 births and 150 deaths in the population.
1. Estimate r (per capita rate of increase)
We know that there are 400 births in the population over the month, in our population of 3,000 individuals; we can express this as a rate by doing the following:
Birth rate = 400/3000 = ____________ births/(individual per month)
Death rate = ____/3000 = ____________ deaths/(individual per month)
r = birth rate – death rate = ________ - __________ = ____________
Answers
The Birth rate is 0.1333 births/(individual per month), the Death rate = 0.05 deaths/(individual per month) and the per capita rate of increase (r) for the June beetle population is 0.0833.
To estimate r (per capita rate of increase) for the June beetle population, follow these steps:
1. Calculate the birth rate: 400 births in the population over the month, in our population of 3,000 individuals.
Birth rate = 400/3000 = 0.1333 births/(individual per month)
2. Calculate the death rate: 150 deaths in the population over the month, in our population of 3,000 individuals.
Death rate = 150/3000 = 0.05 deaths/(individual per month)
3. Subtract the death rate from the birth rate to find r:
r = birth rate – death rate = 0.1333 - 0.05 = 0.0833
So, the per capita rate of increase (r) for the June beetle population is 0.0833.
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Granny likes to make a little wine at Christmas time. She learned a very important
lesson in her early experimentation. She placed her muscadines in a large glass jug.
She added sugar and warm water. She placed the cap on tightly and put the jug in the
pantry where it was dark and cool. In a few days she heard a strange sound of glass
breaking. Following the sound to the pantry, she peeked in and discovered a MESSI
What happened and why?
Answers
The rapid fermentation of Granny's muscadine wine was something she personally witnessed. An optimum environment is created for yeast to develop and convert sugar into alcohol when sugar.
As yeast interacts with the natural grape sugar present in the grape pulp, what wine component is created during the fermentation process?White wine Antioxidants During Alcoholic Fermentation. During alcoholic fermentation, yeast converts the fructose and glucose in grape juice into ethanol, CO2, and primarily heat. Although a large number of other chemicals are also created during this process, this review will solely pay attention to antioxidants.
What process of fermentation produces wine and beer in addition to raising bread?Fermentation of Alcohol, Plants, yeasts and some bacteria perform this sort of fermentation. It's used to create biofuels, wine, and bread. Ethanol and NAD+ are produced during alcohol fermentation. NAD+ enables glycolysis to carry on producing ATP.
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Epigenetics is most concerned withA)changes in a person's genotyperesulting from environmental influences.B)the expression of a particular gene as influenced by external inputs.C)environmental influences on gene expression over experiential influences.D)the heritability of genotypes that have been altered over multiple generations.
Answers
Answer: Option C.
inputs.C)environmental influences on gene expression over experiential influences
Explanation:
Epigenetics is is a field of science that entails the study of heritable changes which is caused by Gene expression modifications without our any form of DNA alterations or changes. It is as a result of environmental influences on gene Expression because of heritable phenotypic changes.
example of an epigenetic change is DNA methylation which is the addition of a methyl group or to a segment of the DNA molecule which prevent the expression of some genes.
The crust is the thickest layer of the earth true or false
Answers
Answer:
The crust is not the thickest layer of earth
:)
Answer:
No
Explanation:
The core is the thickest layer of the earth! Which the crust is relatively thin compared to the other layers
what is an overreaction of the immune system called?
Answers
The overreaction of the immune system is called cytokine storm. In order words, it is an immune system anomaly caused by the overreaction of the immune system as a result of too many inflammatory signals.
What is immune system?Immune system can be defined as a normal functioning body physiology system which helps the body fight infections and other diseases.
In generally terms, a normal functioning immune system includes the following: Leucocytes, Bone marrow, Lymph system
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How do antibiotics work? Note: you will not be given credit for simply stating “they prevent bacterial growth” or “they kill bacteria”
Answers
Answer:
here's your answer
Explanation:
May this helps you..
You perform a DNase-seq experiment on a particular area of the genome. You see a small DNase hypersensitive site upstream of a suspected promoter. You view ChIP-seq data for specific activators and observe that activator binding overlaps this DNase hypersensitive site. This region is likely:
Answers
If a DNase hypersensitive site is seen upstream of a suspected promoter, and the binding of activators overlaps this DNase hypersensitive site, then the most likely answer is that this region is a regulatory element that controls transcription of the suspected promoter.
A DNase-seq experiment is used to identify sites in DNA that are hypersensitive to cleavage by DNase I. In hypersensitive sites, the chromatin structure is open and accessible to transcription factors and other regulatory proteins. In contrast, the chromatin structure in non-hypersensitive regions is typically closed and inaccessible.ChIP-seq is a technique that is used to identify DNA binding sites for specific transcription factors or other proteins. In this technique, an antibody that recognizes the protein of interest is used to immunoprecipitate the protein-DNA complexes. The DNA fragments that are associated with the protein are then sequenced to identify the genomic locations of the binding sites.In this scenario, the presence of a DNase hypersensitive site upstream of a suspected promoter suggests that this region is involved in the regulation of transcription of the promoter.
This is because DNase hypersensitive sites are often located in regulatory elements, such as enhancers and silencers, that control the transcription of genes.The observation that activator binding overlaps the DNase hypersensitive site provides further evidence that this region is a regulatory element that controls transcription. Activators are proteins that bind to DNA and stimulate the transcription of nearby genes. The fact that activator binding overlaps the DNase hypersensitive site suggests that the activators are binding to a specific sequence within the hypersensitive site, and that this sequence is involved in the regulation of transcription of the promoter.Therefore, based on the evidence provided, the most likely answer is that this region is a regulatory element that controls transcription of the suspected promoter.
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3. With regard to environmental management of waste
rock dumps, what is AMD, how is
it formed and how will you manage dump construction to minimize its
impact on the
environment? [6%]
Answers
AMD stands for Acid Mine Drainage. It is formed when sulfide minerals in rocks are exposed to air and water, resulting in the generation of sulfuric acid and dissolved metals. This acidic and metal-rich drainage can have detrimental effects on the environment, including water pollution and damage to aquatic ecosystems.
To manage dump construction and minimize the impact of AMD on the environment, several measures can be implemented:
Prevention: One of the primary approaches is to prevent or minimize the formation of AMD in the first place. This can be achieved by implementing proper waste management practices, including selecting suitable waste rock materials, limiting the exposure of sulfide minerals to air and water, and employing effective cover systems.
Neutralization: Implementing neutralization techniques can help mitigate the acidity of AMD. This involves treating the drainage with alkaline substances, such as lime or limestone, to raise the pH and reduce its harmful effects on the environment.
Containment: Constructing and maintaining effective containment systems is crucial to prevent AMD from infiltrating surrounding soils and water bodies. This can include using impermeable liners, such as clay or synthetic materials, to prevent the leaching of acidic drainage.
Water management: Proper water management is essential to control the movement and accumulation of AMD. This may involve implementing diversion channels, collection systems, and treatment facilities to contain and treat the acidic drainage before it enters the environment.
Monitoring and maintenance: Regular monitoring of water quality, pH levels, and metal concentrations is necessary to detect any potential AMD issues and take appropriate corrective measures. Ongoing maintenance and management of dump sites are crucial to ensure the effectiveness of preventive and mitigation measures.
AMD, or Acid Mine Drainage, refers to the acidic and metal-rich drainage that is formed when sulfide minerals, typically found in rocks associated with mining activities, come into contact with air and water. The exposure of sulfide minerals to oxygen and moisture leads to chemical reactions, resulting in the generation of sulfuric acid. This acid then dissolves metals present in the rocks, such as iron, zinc, and copper, which further contributes to the contamination of water bodies and soil.
The management of waste rock dumps is essential to minimize the impact of AMD on the environment. Dump construction should incorporate measures that aim to prevent the formation of AMD, neutralize its acidity, contain its spread, and manage water flow effectively. These strategies help to minimize the release of acid drainage and metals into the environment, protecting water quality and ecosystems.
The management of waste rock dumps is critical in mitigating the formation and impact of Acid Mine Drainage (AMD). By implementing preventive measures, neutralization techniques, containment systems, effective water management, and regular monitoring, the environmental impact of AMD can be minimized. Adhering to best practices and regulations ensures responsible waste management and helps safeguard water resources and ecosystems.
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a group of students are reviewing the various causes of bacterial conjunctivitis in children. the students demonstrate understanding of this condition when they identify what as the most common cause?
Answers
Students demonstrate understanding of this condition when they identify that bacterial infections are the most common cause of conjutivitis.
Bacterial conjunctivitis is an inflammation of the conjunctiva, which is the clear membrane that covers the white part of the eye, and is caused by a bacterial infection.
Bacterial conjunctivitis in children is most commonly caused by Staphylococcus aureus. It usually affects both eyes and is accompanied by a sticky, yellow or green discharge from the eye. The eye may become red, inflamed and watery, and the eyelids may swell and itch. It is a highly contagious condition that can spread rapidly through close contact or shared items, such as towels or bedding, so good hygiene practices are essential to prevent its spread.
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draw the pictures of effect and different nerves.
Answers
what is cell wall. ASAP. please
Answers
Answer:
A cell wall is a structural layer surrounding
of plant cells, just outside the cell membrane. It can be tough, flexible, and sometimes rigid. It provides the cell with both structural support and protection, and also acts as a filtering mechanism
Answer:
A cell wall is a structural layer surrounding some types of cells, just outside the cell membrane. It can be tough, flexible, and sometimes rigid.
Explanation:
How is absolute dating different from relative dating
Answers
Every nation has something to develop for the world's benefit. True False
Answers
Answer:
True, All nations are capable of benefitting the world
Explanation:
Every country be it developed, developing or underdeveloped has difference resources, ideologies and cultures. Benefitting the world in terms of only fulfilling the materialistic requirement of the world is not essential, a nation can also benefit the world from its ideologies, life style, etc.
For instance, countries like Bhutan have spread their thought of making everyone life happy, countries like India, and south East Asian countries are emerging producers, etc.
What is one function of proteins?
Answers
Answer:
. It helps repair and build your body's tissues, allows metabolic reactions to take place and coordinates bodily functions.
Explanation:
The reaction occurs only at extremely high temperatures.
O Fusion
O Fission
Answers
Answer:
fission
Explanation:
Answer:
fusion
To make fusion happen, the atoms of hydrogen must be heated to very high temperatures (100 million degrees) so they are ionized (forming a plasma) and have sufficient energy to fuse, and then be held together i.e. confined, long enough for fusion to occur. The sun and stars do this by gravity.
fission doesn't require high temperature
How big is a major big giant chode
Answers
What are the next four numbers in the pattern below ? 3,9,7,13,11,17,15,
Answers
Answer:
21,19,25,23
Explanation:
You are adding 6 to get the next number, than subtract 2 from the the number
the four most common chemical elements found in living matter are
1,C,H,O,P
2,C,H,O,N
3,C,H,N,P
4,C,H,O,S
5,C,H,O,Ca
Answers
Explanation:
In all living system we can always find basic elements carbon, oxygen, nitrogen and hydrogen, carbon is the basic building unit contained in living matter. The percentage of carbon in the mass of living matter is 19.0% oxygen and hydrogen are present in almost all organic compound which creates living organisms.
HELP PLEASE
Read the paragraph from the section "Sub-Disciplines Of Oceanography."
Oceanography's diverse topics of study are generally categorized in four major sub-disciplines. A sub-discipline is a specialized field of study within a broader subject or field of study. Oceanographers specialize in the biological, physical, geological and chemical processes of the marine environment.
Why did the author use the word "diverse"?
A
to emphasize the specialized knowledge that all oceanographers must learn while in school
B
to emphasize the various interests and careers that fall under the category of oceanography
C
to illustrate that anyone can become an oceanographer if they have an interest in protecting the ocean
D
to illustrate that it is difficult to choose which discipline of oceanography to study
Answers
Answer:
the answer is B because diverse means different
help me please I am so confused
Answers
Answer:
ECOLOGICAL FOOTPRINT
you would need about 41.6 earths all together
Explanation:
just add them up.
what property of light allows prisms and diffraction gratings to separate white light into its component colors
Answers
The property of light that allows prisms and diffraction gratings to separate white light into its component colors would be dispersion.
What is dispersion?The property of light that allows prisms and diffraction gratings to separate white light into its component colors is called dispersion. Dispersion is the phenomenon where different wavelengths of light travel at different speeds through a material, causing them to bend or refract by different amounts.
When white light enters a prism or diffraction grating, it is refracted or diffracted by different amounts depending on the wavelength of the light. This causes the different colors of the visible spectrum to separate, forming a rainbow-like pattern.
Prisms and diffraction gratings take advantage of this property to separate white light into its component colors, allowing us to study the characteristics of light and its interaction with matter.
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What process led to the Earth gaining mass during its formation ?
Answers
Answer:
deposition
Explanation:
correct me if I'm wrong
Deposition is the process which lead to the increase in the mass of Earth during its formation. Deposition is the laying down of sediment carried out by wind, flowing water, sea or ice.
What is deposition?
The Earth is formed over 4.6 billion years ago out of a mixture of particles including dust and gas around the young sun. It grew larger due to countless collisions between the dust particles, asteroids, and other growing planets.
Deposition is the laying down of particles carried out by wind, flowing water, sea or ice. Sediment can be transported as pebbles, or as salts dissolved in water. Salts may later be deposited by organic activity such as evaporation.
The main factor in mass gain of the planet is in-falling material, cosmic dust, meteors, etc. These are the most significant contributors to Earth's increase in mass.
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