Suppose you are a chemist lost in the desert and desperately in need of water. If you had a chemistry set available, which type of reaction could you use to make water?
A) dehydration
B) exothermic
C) hydrolysis
D) redox
Answer: Hydrolysis tell me how I'm wrong
Explanation: Hydrolysis is any chemical reaction in which a molecule of water breaks one or more chemical bonds. The term is used broadly for substitution, elimination, and solvation reactions in which water is the nucleophile
Dehydration is the absence of a sufficient amount of water in your body. The best way to beat dehydration is to drink before you get thirsty. If you're thirsty, you're already mildly dehydrated, and that can cause symptoms like headache, fatigue, dizziness, and more.
Exothermic: ----> (of a reaction or process) accompanied by the release of heat.
(of a compound) formed from its constituent elements with a net release of heat.
Redox: ---> a process in which one substance or molecule is reduced and another oxidized; oxidation and reduction are considered together as complimentary processes.
"redox reactions involve electron transfer"
proteins that respond to environmental stimuli to prevent the binding of transcription factors are known as
Proteins that respond to environmental stimuli to prevent the binding of transcription factors are known as repressors.
Repressors are regulatory proteins that bind to specific DNA sequences (typically, operator sequences) and inhibit the transcription of genes by blocking the access of transcription factors to the DNA template. These proteins play a crucial role in gene regulation by controlling the expression of specific genes in response to environmental cues or cellular conditions.
In summary, repressors are proteins that help regulate gene expression by preventing the binding of transcription factors in response to specific environmental stimuli.
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Based on this cladogram, which pair of organisms are likely to share the most similarities with each other?
B and E
C and F
A and C
D and H
Answer:a and c
Explanation:because a and c are close and it is related to each and one more E and H are also close but they didn't gave the
what would happen if the abiotic matter in the environment was not recycled
Answer:
Changes in abiotic factors can result in extreme problems for some organisms.
For example, if a plant is adapted to low temperatures and the specific are where it lives, has a change in its temperature(thanks to global warming!), this plant will die and this area will no longer support life, which is due to the change in abiotic factor (temperature).
It can also have positive effect on organisms.
For example, due to different reasons(like water pollution), water becomes enriches in mineral thus supporting large population of algae,causing water blooms. It does have negative effect on plants, fish and other organisms in water but, algae ha a positive effect of this change in abiotic factors(water).
That nature contributes to the supply of clean water is an
example of:
Choose one option:
Sustainability
Ecosystem services
Biomimicry
Industrial symbiosis
Ecosystem services is an example of how nature contributes to the supply of clean water. Ecosystem services are benefits that people obtain from ecosystems. They are distinguished into four categories: provisioning, regulating, cultural, and supporting services.
Ecosystem services include the provision of clean air and water, the pollination of crops, the mitigation of natural disasters, and the provision of recreational opportunities. Nature provides a variety of ecosystem services that are essential to human well-being. The supply of clean water is an example of ecosystem services. The water we drink comes from rivers, lakes, and underground aquifers that are replenished by rain and snowmelt.
These freshwater ecosystems not only provide us with water but also with food, fiber, and recreation opportunities. That nature contributes to the supply of clean water is an example of ecosystem services. Ecosystem services are benefits that people obtain from ecosystems.
The supply of clean water is one such service provided by nature, and it is essential for human well-being. The water we drink comes from rivers, lakes, and underground aquifers that are replenished by rain and snowmelt. These freshwater ecosystems not only provide us with water but also with food, fiber, and recreation opportunities.
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10)
What is point source pollution of an aquatic ecosystem?
A)
pollution of freshwater sources
B)
pollution from many sources that combine into one
pollution that occurs over a wide area; water that runs off from fields,
parking lots, and other land surfaces
D)
pollution that can easily be identified with a single discharge source, such
as an open pipe which drains into a body of water
Answer:
D
Explanation:
the point if of water pollution can be easily identified
The enzyme in saliva is called amylase and it breaks down what biomolecule?
What is the driving force through random collisions for passive transport mechanisms?
The driving force through random collisions for passive transport mechanisms is thermal energy.
Passive transport refers to the movement of molecules or ions across a cell membrane without the expenditure of energy by the cell. It occurs down the concentration gradient, from an area of higher concentration to an area of lower concentration. The driving force behind passive transport is thermal energy, which causes random collisions between particles.
Thermal energy is the kinetic energy associated with the random motion of particles. As particles move randomly, they collide with one another and with the cell membrane. These collisions create a net movement of particles from areas of higher concentration to areas of lower concentration, ultimately resulting in the passive transport of molecules or ions across the cell membrane.
For example, in passive diffusion, small non-polar molecules can move freely through the lipid bilayer of the cell membrane due to the random collisions caused by thermal energy. Similarly, in facilitated diffusion, larger or charged molecules rely on specific transport proteins to facilitate their movement across the membrane, but the driving force for this transport is still provided by the random collisions resulting from thermal energy.
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Consider a melt that has cooled to a temperature such that olivine, pyroxene, amphibole, and calcium-rich plagioclase feldspar have crystallized. which elements will be enriched in the melt, and which will be depleted in the melt?
Answer:
Calcium is enriched, while they are depleted of carbon.
Explanation:
It should be understood that during the process of volcano eruption, carbon is liberated as the molten magma is coming out , this is due to the heat that is being evolved. And calcium will be the molecules that will make the molten solidified after wind has cooled it down.
That is why they are depleted of carbon, and enriched with calcium.
What would cause an increased amount of exhaled carbon dioxide?
An increase in the amount of carbon dioxide exhaled might be caused by increased metabolic activity or respiratory issues.
There are several factors that can cause an increased amount of exhaled carbon dioxide. One common cause is an increase in metabolism, such as during physical activity or a fever. Another cause can be respiratory issues, such as asthma or chronic obstructive pulmonary disease (COPD), which can result in difficulty breathing and increased levels of carbon dioxide in the body.
Additionally, certain medical conditions such as metabolic acidosis or anemia can also lead to an increase in exhaled carbon dioxide. It's important to consult a healthcare professional if you notice a significant increase in your exhaled carbon dioxide levels.
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Scientist are trying to reduce the amount of carbon dioxide and methane into the atmosphere which statement explains what most likely happened it was all this efforts
Answer:
These efforts will decrease the amount of heat that the atmosphere traps.
Explanation:
Both Carbon dioxide and methane are considered to be green house gases.
However, green house gases are known to cause climatic changes by trapping or absorbing heat from the sun or in some other cases, produces large amount of heat through combustion, the result which can give rise to respiratory disease from smog and air pollution.
Hence, when Scientist tried to reduce the amount of carbon dioxide and methane into the atmosphere their efforts will decrease the amount of heat that the atmosphere traps.
Answer: B
Explanation: Edge 2020
what is the function of a ribosome
Answer:
RNAs and RNPs
Explanation:
Answer:
RNAs and RNPs
Explanation:
Which of these choices is the cytoskeleton's main structure? It provides support, structure, and
holds the organelles in place.
A. Phospholipids
B. Microtubules
C. Ribosomes
D. Cilia
The cytoskeleton's main structure that provides support, structure, and holds the organelles in place is microtubules and the correct option is option B.
Microtubules are the main structure of the cytoskeleton. They are composed of tubulin protein subunits and play a crucial role in providing support, structure, and maintaining the shape of the cell.
Additionally, microtubules are involved in various cellular processes, including cell division, intracellular transport, and the positioning of organelles within the cell. They form a dynamic and flexible network that contributes to the overall stability and organization of the cell's interior.
Thus, the ideal selection is option B.
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Why is the current lifestyle of the human population considered unsustainable? a. The biologically productive land is diminishing. b. The carbon footprint is greater than the demand of the population. c. The demand for renewable resources exceeds the ecological footprint.d. The biocapacity of Earth is less than the global ecological footprint. e. The biologically productive land and water is greater than the biocapacity.
The ecological footprint represents the number of natural resources and biologically productive land required to support a population's consumption patterns and absorb its waste.
Biocapacity refers to the Earth's capacity to provide resources and absorb waste. When the global ecological footprint surpasses biocapacity, it indicates an unsustainable situation. All of the given options highlight important factors contributing to the unsustainability of the current human population's lifestyle. However, option d. "The biocapacity of Earth is less than the global ecological footprint" best summarizes the overall unsustainability of our current lifestyle.
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starch is used as an energy storage form by which of the following
A. plants
B. carnivores
C. decomposers
Answer: A - plants
Explanation: Starch serves as energy storage in plants.
When recording a customer payment in the Receive Payments window, which account should you select in the Deposit To field in order to later group multiple payments for deposit to the bank?
A. Cost of Goods Sold.
B. Accounts Receivable.
C. Undeposited Funds.
D. Checking account.
When recording a customer payment in the receive payment window one should choose a checking account. the correct option is D, checking account.
What is a checking account?
A checking account is a type of bank account that allows individuals or businesses to deposit, withdraw, and manage their funds easily.
Key features of a checking account:
Deposits and Withdrawals.Check Writing.Debit Card Access.Online and Mobile Banking.Account Statements.The checking account represents the bank account where the payments will be deposited once they are grouped together. Selecting the Checking account in the Deposit To field, ensure that the received payments are properly tracked and recorded. This allows you to later group multiple payments for deposit to the bank.
Therefore, the correct option is D.
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In fruit flies, curly wings (c) is recessive to straight wings (C). Ebony body (e) is recessive to tan body (E). Suppose you had a male fly that had curly wings and was heterozygous for body color and a female fly that was heterozygous for wing type and had an ebony body. What is the genotype for the male fly?
The genotype of the male fly is ccEe, where cc represents the curly wing trait and Ee represents the heterozygous ebony body trait.
The male fly has curly wings (c), which is a recessive trait. This means he must have two copies of the curly wing allele (cc) for wing type. The male fly is heterozygous for body color, which means he has one copy of the ebony body allele (e) and one copy of the tan body allele (E). Since ebony body (e) is recessive to tan body (E), the male fly must have the genotype Ee for body color.
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The concept of emergent property definition
Answer:
definition
Explanation:
An emergent property is a property which a collection or complex system has, but which the individual members do not have. In biology, for example, heart is made of heart cells, heart cells on their own don't have the property of pumping blood.
can you consider having wavy hair as a case of incomplete dominance pattern?why you say so?
Answer:
Explanation:
Hair type is an interesting case of something called incomplete dominance. What this means is that with hair type, if you have one of each version of the gene, you get a mix of the two or wavy hair. So for hair type, CC gives curly, Cs gives wavy and ss gives straight hair. Back to your specific situation.
Which of the following is an example of ecology? a. Studying earthquakes b. Looking for planets in outerspace c. Creating pharmaceutical drugs d. Studying how global warming affects whales
Answer:
D
Explanation:
How something affects a species
Studying how global warming affects whales is an example of ecology.
What is global warming?The rise in earth's average temperature than the normal is called global warming.It is happening due to greenhouse gases.This would have a negative impact on living organisms.What do you mean by ecology?"Ecology is the study of organisms and how they interact with the environment around them."Global warming affects the environment which in turn influences the living organism interacting with it.
Hence, the correct option is d. Studying how global warming affects whales.
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50POINTS!!!!!!!!!!!!!!!!!!!!!!!1
Describe how energy and matter move through the environment under both aerobic
and anaerobic conditions. Must be at least two paragraphs
Answer:
Energy drives the cycling of matter within and between systems. Energy drives the cycling of matter within and between systems in aerobic and anaerobic conditions. Photosynthesis and cellular respiration (including anaerobic processes) provide most of the energy for life processes.
Explanation:
btx depolarizes the membrane and prevents repolarization. what effect would this have on electrical signaling by the nervous system? drag the terms on the left to the appropriate blanks on the right to complete the sentences.
BTX depolarizes the membrane and prevents repolarization. the effect would this have on electrical signaling by the nervous system is sodium channel.
By promoting activation and preventing deactivation of eukaryotic voltage-gated sodium (Nav) channels, which are responsible for action potentials in nerve, muscle, and the heart, batrachotoxin (BTX), an alkaloid from the skin secretions of dendrobatid frogs, causes paralysis and death.
The outer membranes of human muscle and nerve cells open up and let sodium ions pass through. This is accomplished by making certain that a sizable number of sodium ions circulate throughout the cell, avoiding these arteries within the muscle tissues from repeatedly terminating. When a tissue is exposed to batrachotoxin, it loses its sensitivity. Heart failure, fibrillation, arrhythmias, and depolarization of the muscles and nerves are all effects of this poison's entry into the human body. BTX contributes to these adverse consequences by interfering with the body's capacity to conduct electrical impulses through action potential medians.
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Identification of bacteria based on the proteins produced under specific conditions is called:
22. genes encoding which substance have been associated with schizophrenia? a. neuregulin 1 b. dysbindin c. disc1 d. all of the above
Genes encoding all of the above substances, neuregulin 1, dysbindin, and DISC1, have been associated with schizophrenia.
Neuregulin 1 is a protein involved in the development and function of the nervous system, and variations in its gene have been linked to an increased risk of schizophrenia. Dysbindin is another protein that is involved in neural signaling, and variations in its gene have also been associated with schizophrenia. DISC1 is a protein that plays a role in neuronal development and signaling, and disruptions in its gene have been linked to an increased risk of schizophrenia and other psychiatric disorders.
It is important to note that while these genes have been associated with schizophrenia, the precise mechanisms through which they contribute to the disorder are still being investigated. Additionally, schizophrenia is a complex disorder that likely involves multiple genetic and environmental factors.
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What do animal and plant cells have in common? Responses
Answer: Mitochondria, endoplasmic reticulum, golgi apparatus, lysosomes, and nucleus.
Explanation: Animal and plant cell both have eukaryotic cells so that's why they posses membrane bound organelles such as mitochondria, and nucleus.
Consider the following two statements about succession.
Student 1:
Matthew - As succession begins, communities tend to be dominated by mostly K-selected species. As succession continues, r-selected species tend to compete better and therefore become more and more common.
Student 2:
Iman - As succession begins, communities tend to be dominated by mostly r-selected species. As succession continues, K-selected species tend to compete better and therefore become more and more common.
Which student is correct?
a. Provide a rationale for your answer (2 marks)
b. Provide a specific example of succession which includes at least one example of an r-selected and one example of a K-selected species. (1 mark)
Note - No marks are earned by simply agreeing with either Matthew or Iman
a population of sheep is in hardy-weinberg equilibrium. the allele for white wool (w) has an allele frequency of 0.19, and the allele for black wool (w) has an allele frequency of 0.81.
In a population of sheep that is in Hardy-Weinberg equilibrium, there is a certain frequency of alleles for different characteristics like wool color.
In this population of sheep, the allele for white wool (w) has an allele frequency of 0.19, which means that 19% of the alleles in the population are for white wool. The allele for black wool (b) has an allele frequency of 0.81, which means that 81% of the alleles in the population are for black wool.
So, the majority of the alleles in this population of sheep are for black wool, and a minority number of alleles are for white wool. The allele frequencies of both alleles for wool color remain the same from one generation to the next because Hardy-Weinberg equilibrium, which states that allele frequencies remain the same in a population over time.
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complete question is :
a population of sheep is in hardy-weinberg equilibrium. the allele for white wool (w) has an allele frequency of 0.19, and the allele for black wool (w) has an allele frequency of 0.81. explain.
Describe(detail) 1 animal behavior in Chordata?PLSSS HELPPP!!!!
What happens during prophase?
a. sister chromatids separate.
b. the mitotic spindle begins to form.
c. chromosomes line up on the midline of the cell.
d. the nuclear envelope forms.
During prophase the mitotic spindle begins to form.
During prophase, the mitotic spindle starts to self-assemble in the cytoplasm. In contrast, all doubled homologous chromosomal pairs align along the cell's midline, between the two centrioles, during metaphase I. In anaphase, I, spindle fibers connected to the centrioles pull the homologous chromosome pairs apart and to the opposite poles of the cell.
In addition, the microtubules created by the duplicated centrosomes of animal cells are what combine to form the mitotic spindle. Also, chromatin, a combination of DNA and proteins found in the nucleus, condenses during prophase.
The development of discernible chromosomes is caused by the coiling and tightening of the chromatin. One well-organized piece of DNA makes up each chromosome.
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Write the letter all of the following statements that are NOT true. a. Coding sequences for gene products can be isolated from cDNA libraries. b. Antibodies are used for Northern blot analysis. c. VNTRs are highly conserved in human populations. d. PCR amplification generates large numbers of linear DNA fragments. e. RNA molecules can be used as hybridization probes in Southern blot analysis. Separate your answer(s) with a comma, and enter only the letter(s) of your choice(s
Answer:
b. Antibodies are used for Northern blot analysis.
c. VNTRs are highly conserved in human populations.
Explanation:
The northern blot technique is used in molecular biology laboratories for detecting specific RNA molecules in a sample of RNA derived from a particular cell/tissue. Antibodies can be detected by the enzyme-linked immunosorbent assay (ELISA). In ELISA, antigens are used to detect specific antibodies: the addition of the antigen produces a positive reaction i.e., formation of the antigen-antibody binding complex. Subsequently, a second antibody with a particular marker is added to bind with the complex, thereby producing a change in the color and thus evidencing the presence of the target antibody in the sample. On the other hand, the variable number of tandem repeats (VNTR) are short sequences (around 20 to 100 bp) whose number of repetitions varies at specific loci in the genome of many organisms, including humans. Since VNTR sequences exhibit variation in length between individuals of the same species/population, they are widely used as molecular markers to identify individuals, QTL (quantitative trait loci) mapping, establish phylogenetic relationships among individuals/cultivars/lines, etc.