Answer:
adding a catalyst will increase the rate of a chemical reaction
Which of the following phrases best describes these two chromosomes based on their genetic content? Choose one: homologous pair of the same chromosome number sister chromatids of the same chromosome number completely separate chromosome number
Based on the given options, the best phrase to describe these two chromosomes based on their genetic content is: sister chromatids of the same chromosome number.
Sister chromatids are identical copies of a single chromosome that are produced during DNA replication. They are held together at a region called the centromere. Sister chromatids are connected to each other until they separate during cell division.
During cell division, sister chromatids are pulled apart and distributed to daughter cells, ensuring that each daughter cell receives a complete set of chromosomes. Once separated, the sister chromatids become individual chromosomes.
The term "same chromosome number" indicates that the two sister chromatids belong to the same chromosome, meaning they contain the same genetic information. The chromosome number refers to the specific type of chromosome within a species.
It's important to note that homologous pairs of chromosomes also exist in diploid organisms, but they are not applicable to the given scenario. Homologous chromosomes are pairs of chromosomes that have similar genetic content but are not identical. They come from each parent and contain corresponding genes in the same order. Homologous chromosomes pair during meiosis and undergo genetic recombination.
Completely separate chromosome number would refer to distinct and unrelated chromosomes, which is not the case for sister chromatids.
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Why can the plasmids in DNA of some prokaryotic cells be considered dangerous?
They are deadly
They can be exchanged between cells
They multiply quickly
They make bacteria stronger
The plasmids in the DNA of some prokaryotic cells can be considered dangerous because of B. They can be exchanged between cells and D. They make bacteria stronger.
What are the DNA plasmids?The DNA plasmids are small circular fragments of DNA that may be interchanged between different bacterial strains and they may contain genes of resistance that become a given bacterial cell stronger to antibiotics and or other substances in the media.
Therefore, with this data, we can see that the DNA plasmids may contain genes that confer resistance to antibiotics.
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If there are 16 chromosomes in the egg cells of a diploid organism, how many chromosomes would be found in its skin cells?
The diploid skin cells would have 32 chromosomes.
To answer your question, if there are 16 chromosomes in the egg cells of a diploid organism, there would be 32 chromosomes found in its skin cells.
1. The egg cells are haploid, which means they contain half the number of chromosomes as the diploid cells (in this case, 16 chromosomes).
2. The diploid cells, such as skin cells, contain the full set of chromosomes, which is twice the number found in haploid cells.
3. To find the number of chromosomes in diploid cells, simply multiply the number of chromosomes in the egg cells by 2: 16 chromosomes * 2 = 32 chromosomes.
So, the diploid skin cells would have 32 chromosomes.
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How is volvox life different than euglena life?
Answer:
Paramecium have cilia to move/eat, but euglena have flagella to move. How are euglena and volvox similar and different? Both can make their own food using chloroplasts (autotroph), but euglena can also hunt for their food. Both also use flagella to move, but volvox move together in colonies.
Explanation:
Identify a negative impact of human activity on the environment. Describe the activity, quantify its impact (how big is the problem?), and show how a solution of your own creation could help solve the problem. Indicate what the cost of the solution would be, and compare it to the impact of the problem itself. Describe forces that would try to resist the solution. How would you respond to those forces?
Deforestation represents a very negative outcome for human activity, it is associated with global warming and can be partially solved through recycling.
What is deforestation?Deforestation can be defined as the elimination of tree forests caused by humans (i.e., urbanization building, crop production, etc).
Deforestation is a global concern related to the increase of greenhouse gases (global warming), which can be mitigated via recycling.
In conclusion, deforestation represents a very negative outcome for human activity, it is associated with global warming and can be partially solved through recycling.
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This trait is represented by a lowercase letter and hidden whenever a dominant allele is present.
Dominant
Or
Recessive
Answer:
Recessive
Explanation:
In genetics, a dominant allele for a trait is always represented by a capital letter, while a recessive allele is always represented by a lowercase letter.
Freshwater environments generally have a. A lower variety of species and more fossil preservation than marine environments b. A lower variety of species and less fossil preservation than marine environments c. A greater variety of species and more fossil preservation than marine environments d. A greater variety of species and less fossil preservation than marine environments
Freshwater environments generally have a Lower variety of species and less fossil preservation than marine environments. The correct option is B
What is Freshwater environments ?In comparison to marine habitats, freshwater areas often contain a smaller variety of species. This is due to the fact that freshwater settings are more remote and have less resources accessible.
Freshwater ecosystems are less likely than marine environments to preserve fossils. This is so because sedimentation and erosion are more likely to occur in freshwater environments. Fossils can become buried by sediment, making them difficult to locate.
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Select all examples of mutations that are likely to be dominant to wild-type alleles, Check All That Apply A. An amorphic allele of Gene B when Gene Bis haploinsufficient B. A hypomorphic allele of Gene A that reduces its function by 75%, when one wild-type allele of Gene
C. A is sufficient for a wild-type phenotype D. A hypermorphic allele of Gene Cthat encodes a constitutively active protein
E. An antimorphic allele of Gene Dthat encodes a protein that forms homodimers. F. A neomorphic allele of Gene Ethat results in expression of a transcription factor in the wrong cell types,
Mutations that are likely to be dominant to wild-type alleles are An amorphic allele of Gene B when Gene B is haploinsufficient and A hypermorphic allele of Gene C that encodes a constitutively active protein, option A and D are correct.
The amorphic allele of Gene B (option A) is likely to be dominant if the wild-type allele of Gene B is haploinsufficient. This means that a single copy during mutations of the wild-type allele is not sufficient to produce a normal phenotype, allowing the amorphic allele to manifest its effect dominantly.
Similarly, the hypermorphic allele of Gene C (option D), which encodes a constitutively active protein, is likely to be dominant to the wild-type allele. A hypermorphic allele produces an increased or prolonged gene activity, resulting in a gain-of-function phenotype, option A and D are correct.
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The complete question is:
Select all examples of mutations that are likely to be dominant to wild-type alleles:
A. An amorphic allele of Gene B when Gene Bis haploinsufficient
B. A hypomorphic allele of Gene A that reduces its function by 75%, when one wild-type allele of Gene
C. A is sufficient for a wild-type phenotype
D. A hypermorphic allele of Gene Cthat encodes a constitutively active protein
E. An antimorphic allele of Gene Dthat encodes a protein that forms homodimers.
F. A neomorphic allele of Gene Ethat results in expression of a transcription factor in the wrong cell types,
select the following characteristics that allowed plants to survive and reproduce in a land environment.
Plants have several characteristics that allowed them to survive and reproduce in a land environment are :-
These characteristics include the development of a cuticle to prevent water loss, the evolution of vascular tissues for transport of water and nutrients, the production of spores and seeds for reproduction, the ability to undergo photosynthesis for energy production, and the development of roots for anchorage and uptake of water and nutrients from the soil. These adaptations allowed plants to thrive on land and ultimately become dominant organisms in terrestrial ecosystems.
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1.
Which of the following is the correct order from DNA to traits
a. Proteins --> DNA --> genes --> traits
b. DNA --> genes -> protein --> tait
I
C. DNA --> genes-> traits --> proteins
d. Tráit --> protein --> DNA --> Gene.
Answer:
B
Explanation:
Genes are sections of DNA that hold the instructions for building proteins that ultimately code for traits.
language processing engages brain networks, rather one specific brain region. (True or False)
The statement "Language processing engages brain networks, rather than one specific brain region" is true.
What is language processing?Language processing is the way that people understand, produce, and use language. It includes tasks such as reading, writing, speaking, and listening to spoken words and sentences, as well as higher-level processing tasks, such as comprehension, reasoning, and problem-solving.
Language processing engages brain networks, rather than one specific brain region. Language is not processed in a specific area of the brain. Instead, various brain regions work together to process and comprehend language, and different language-related tasks appear to activate different areas of the brain.
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An organ is a part of the body composed of two or more tissue types and is designed to perform at least one specific physiological function
Question 10 of 10
Which option is the best example of scientific research being used to benefit
the environment?
A. Researching the properties of materials that could be used to
make prosthetic limbs
B. Researching pesticides used to kill disease-carrying mosquitos
C. Researching the effectiveness of a drug in treating a bacterial
infection
D. Researching farming techniques that require less water and
fertilizer
Answer:
The best example of scientific research being used to benefit the environment is researching farming techniques that require less water and fertilizer.
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Density is the amount of mass in a certain
.
Air
results from a column of air pushing on an area.
A measure of how tightly air molecules are packed together is called
Answer:
Density is the mass of an object divided by its volume. Density often has units of grams per cubic centimeter (g/cm3). Remember, grams is a mass and cubic centimeters is a volume (the same volume as 1 milliliter).19-Jun-2020
Answer:
Density is the amount of mass in a certain column✔ volume.Air ✔ pressure mass results from a column of air pushing on an area.A measure of how tightly air molecules are packed together is called weight✔ density.
Explanation:
volume, pressure, density just took the question.
A coastal area that once supported a thriving fishing industry is overfished. The number of species found living in the marine ecosystem continues to decrease. Which of these activities is most likely to increase the natural biodiversity in the area
Answer:
The answer is "Building artificial reefs and limiting fishing activity".
Explanation:
A variety of different methods could be used to construct an artificial island, which is most habitats are built to create a coral through using raw parts, and farming is the farming company, both "the creation of artificial reefs and restriction of fisheries" the activities are used to control environmental ecosystems throughout the region.
Answer:
Building artificial reefs and increasing fish activity
Explanation:
What makes amino acids different from each other? (4 points)
Amino group
Carboxyl group
Hydrogen atom
Side chain
Answer:
The answer is side chain/group.
Answer:
d
Explanation:
What would happen to the possible variation in gametes if the number of chromosome pairs increased from two to three? what if the number increased again from three to four?
Answer:
As the number of chromosome pair increases, it will form polyploidy in a cell or an organism where it has more than 2 pairs of chromosomes. It is found in many species such as human that show an abnormal effect and is incompatible with life.
Explanation:
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hydrogen gas + oxygen gas =
water. what is the product of the reaction
Answer:
Water
Explanation:
In chemical reactions, the atoms in the reactants are rearranged to form the products.
Reactants vs. Products
The reactants in a chemical reaction are the substances that you began with. The products are the result of the reaction.
For example, in the question, you are given hydrogen and oxygen. Then, through a chemical reaction, water is created. The reactants (hydrogen and oxygen) are the compounds that are changing to create the product (water).
Finding the Products
The order that a chemical reaction is written is important. Unlike equations in math, you cannot arbitrarily change the left and right. The left side of a reaction will always contain the reactants, while the right side has the products. Since water is on the right, water is the product.
Which plant cell organelle converts chemical fuel into packets of chemical energy that can power the cell? View Available Hint(s)for Part A Plasma membrane. Chloroplast. Central vacuole. Mitochondrion. Golgi apparatus.
The plant cell organelle that converts chemical fuel into packets of chemical energy that can power the cell is the mitochondrion.
Mitochondria are often referred to as the "powerhouses" of the cell because they play a vital role in cellular respiration. During this process, mitochondria use oxygen and organic molecules (such as glucose) to generate adenosine triphosphate (ATP), which serves as the primary energy currency of the cell. ATP molecules store and release energy as needed to power various cellular activities. Within the mitochondria, the process of cellular respiration occurs in specialized compartments called the inner mitochondrial membrane and the matrix. These structures house the enzymes and molecules necessary for extracting energy from fuel sources and synthesizing ATP.
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1.what is the difference between focus and epicenter?
2.Why earthquakers are stronger near the epicenter
14. (p. 69) What is the name of the substance that forms a blood clot when combined with blood cells?
A. lipids
B. fibrin
C. lipoprotein
D. hemoglobin
The substance that forms a blood clot when combined with blood cells is fibrin. The correct answer is B.
Fibrin is a protein that is essential for the formation of blood clots, a process called coagulation.
When a blood vessel is damaged, platelets, which are small cell fragments, adhere to the site of injury and release chemicals that activate the coagulation cascade.
This cascade involves a series of reactions that ultimately lead to the conversion of fibrinogen, a soluble protein in blood plasma, into fibrin.
Fibrin forms a mesh-like network of fibers that trap blood cells, forming a clot that stops bleeding.
Lipids, lipoproteins, and hemoglobin are not directly involved in the process of blood clotting.
Lipids and lipoproteins are involved in the transport of fats and cholesterol in the blood, while hemoglobin is a protein found in red blood cells that is responsible for carrying oxygen.
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13. How many molecules are produced per each glucose molecule
Answer:
One glucose molecule produces four ATP, two NADH, and two pyruvate molecules during glycolysis.
Explanation:
vitamin k can be synthesized by bacteria in the gut in the form of menaquinones, it is thought that it provides ________________portion of the human vitamin requirement.
Vitamin k can be synthesized by bacteria in the gut in the form of menaquinones, it is thought that it provides a Major portion of the human vitamin requirement.
Vitamin K :There are two forms of vitamin K, which is a fat-soluble vitamin. The most common type is phylloquinone, which can be found in green leafy vegetables like spinach, kale, and collard greens. Menaquinones, the other type, can be found in fermented foods and some animal products. Menaquinones can also be made in the body by bacteria.
Is vitamin K great to take ordinary?An essential vitamin is vitamin K. Broccoli, Brussels sprouts, and other leafy green vegetables all contain it. Males over the age of 19 should consume 120 milligrams per day and females over the age of 19 should consume 90 milligrams per day. While pregnant and bosom taking care of, 90 mcg ought to be consumed day to day.
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Suppose that you were discussing cell theory with someone who has little understanding of biology. Which object could you best use as an analogy to explain the evolutionary history of modern cells?
Answer:
evolution of human works
Explanation:
The cell theory states that all living forms are composed of cells. These cells are the basic structural units of all organisms and they evolved from pre-existing cells present in primitive living forms. From a biological point of view, the evolution of cells is similar to the evolution of human works, which were during the beginning of human civilization less specialized than in modern times. Likewise, somatic cells present in evolutionary recent multicellular organisms are capable of carrying out more complex functions than primitive cells present in unicellular organisms.
How does this experiment relate to the evaporation of salt water in the ocean?
Answer:
When water evaporates, the salt does not leave with the water. Meaning that when all of the water is gone you will have saltier water
Explanation:
The half-life of carbon-14 is 5600 years. If a piece of charcoal made from the wood of a tree shows only % of the carbon-14 expected in living matter, when did the tree die?.
The tree will die after 3480 years
Given: half-life of carbon-14 = 5600 years
percentage of carbon = 65%
To Find: when did the tree die
Solution:
T = half-life = 5600 years
I suppose you want the age of the charcoal in years.If 65% of the carbon 14 remains, then the amount left is 0.65 times the initial amount A0.
0.65A0 = A0(1/2)^t/T
0.65 = (0.5)^t/5600
ln(0.65) = (t/5600) ln(0.5)
t = 5600 ln(0.65) / ln(0.5) ≅ 3480 years
So, the tree will die after 3480 years
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NEED ASAP PLEASE HELP ITS DUE TMRW:How many orbiting telescopes does NASA have and what are their names? WILL GIVE 5 STARS AND THANKS
how many toes are on the human body
Answer:
10 toes total XD
Explanation:
Answer:
10
Explanation:
Benefits associated with symbiotic relationships might include all of the following EXCEPT:
A. protection.
B assistance in reproduction.
C. nutrients.
D. shelter.
E. competitive exclusion.
The benefit associated with symbiotic relationships might include protection, assistance in reproduction, nutrients, and shelter.
Correct option is, A. protection.
Symbiotic relationships are mutually beneficial relationships between two or more organisms of different species. These relationships can provide a range of benefits to both parties involved. For example, in a mutualistic symbiotic relationship, both organisms benefit from the partnership. One organism may provide the other with protection, nutrients, or shelter while the other provides assistance in reproduction or other benefits. Therefore, the benefits associated with symbiotic relationships might include protection, assistance in reproduction, nutrients, and shelter.
These relationships can provide protection (A), assistance in reproduction (B), nutrients (C), and shelter (D) for the organisms involved. However, competitive exclusion (E) is not a benefit of symbiotic relationships. Competitive exclusion refers to a situation where two species compete for the same resources, and one species ultimately outcompetes and eliminates the other from the ecosystem. This concept does not apply to symbiotic relationships, as both species in the relationship are benefiting, rather than competing.
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Which of the following best describes an electrically charged object?
a
an electron without static charge
b
an object that has gained or lost an electron
c
an object that has gained or lost a neutron
d
a proton without a static charge
The best description of an electrically charged object is option b, which states that it is an object that has gained or lost an electron. When an object gains or loses electrons, it becomes electrically charged due to the change in the number of positively charged protons and negatively charged electrons.
Objects with a surplus of electrons are negatively charged, while objects with a deficit of electrons are positively charged. This property is essential in understanding how electric fields and electric currents work, as it allows for the generation and transfer of electrical energy. It is important to note that options a, c, and d do not describe an electrically charged object accurately and may lead to confusion when studying electricity.
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