the grownup. A species with a large geographic range is more likely to withstand environmental threats.
what is species?A group of organisms called a "species" are those that are made up of individuals with comparable characteristics and are able to interbreed or exchange genes. The most fundamental unit of taxonomic classification and rank in biology is the species. On the scale of biological categorization, a genus is the next taxonomic rank.
Which eight species categories are there?How did these ancestors of the human race compare with one another and how did they differ? Homo soloensis, Homo placental mammal, Homo following responses, Homo rudolfensis, Homo hominids, Homo erectus, Homo ergaster, etc Homo sapiens were the different species of humans. Only one of these eight types of humans has persisted: Human beings, e.g.
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Please help!!!
Lightning that occurs within a cloud is known as ___
lightning.
Answer:
Intra-Cloud
Explanation:
Answer:points
Explanation:
hi i need points hehehehe
why do organisms that perform photosynthesis require water and sun light?
Answer:
Explanation:
Photosynthetic organisms need light because this is the source of the energy that is transformed to chemical energy by chlorophyll. These organisms need water because the electrons that are excited in chlorophyll and passed to the electron transport system are replaced with electrons from a split water molecule. Hydrogen is used to form the proton gradient across the thylakoid membrane. The electrons take from the oxygen molecules in water release an oxygen gas into the atmosphere which makes living possible for us.
Genetic variation among humans is relatively small when compared to other species. Where in the human genome does most of the diversity occur?.
In the human genome most of the diversity occur in is in the sequences that code for tRNA(Transfer RNA).
Human ancestral lines are relatively young compared to other species. Man is a genetically homogeneous species. Although a small number of genetic variants are found more frequently in certain geographic regions or in people with ancestry from those regions, this variation represents a small percentage of the human genome. They are transcribed by RNA polymerase III (Pol III) and go through a series of processing steps and post-transcriptional modifications to become fully active. tRNA also exhibits great sequence diversity in the human genome, but the tRNA gene sequence variation and potential functional implications in individual human genomes have not been studied. Human genetic variation is the genetic differences within and between populations. There can be several variants of a given gene in the human population (alleles), a situation called polymorphism.
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Grandpa Minion's genotype for color blindness was: Question 4 options: XCXC XCY XCX XY
Grandpa Minion's genotype for color blindness would be [tex]X^CY[/tex].
Genotype for color blindnessColor blindness in humans generally is an x-linked or sex-linked, recessive trait.
The sex chromosome of males is XY while that of females is XX. In other words, males can only take a single allele of sex-linked traits because he has only one X chromosome. Thus, males are either affected or unaffected by x-linked traits. There is no chance of being heterozygous or a carrier.
Going by this principle, Grandpa Minion is a male and would have the XY genotype. The X chromosome will carry the color blindness trait either in the dominant or recessive form. Thus, the only plausible option that can pass as the genotype of Grandpa Minion is [tex]X^CY[/tex].
[tex]X^CX^C[/tex] and [tex]X^CX[/tex] can only be for females while in [tex]XY[/tex], there is nothing that indicates the presence of the color blindness allele, be it in dominant or recessive forms.
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the process of breaking down glycogen into glucose is called , while the process of synthesizing new glucose from other substrates is called .
Glycogenolysis is the process of converting glycogen into glucose, whereas gluconeogensis is the process of creating new glucose from other substrates.
Glycogenolysis is the biological process through which glycogen breaks down into glucose and glucose-1-phosphate. Both myocytes and hepatocytes take part in the reaction. Your body turns glucose into glycogen through a process called glycogenesis. Your body breaks down glycogen for use through a process called glycogenolysis. Those two actions Several enzymes participate in glycogenolysis. Gluconeogensis is the process by which glucose is created from non-carbohydrate metabolites. The main precursors for gluconeogensis are pyruvate, lactate, a few gluconeogenic amino acids, and glycerol, which is primarily produced by fat metabolism.
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generally, will natural selection result in an increase or decrease in variation? why does this happen and how, in theory, will it affect evolution in the future?
Natural selection decreases the genetic variation in populations by selecting for or against a specific gene or gene combination
How does natural selection cause variation?Genetic variations that alter gene activity introduce different traits in an organism. If a trait is advantageous and helps the individual survive and reproduce, then genetic variation is more likely to be passed on to the next generation, which is known as natural selection.
As natural selection is a mechanism of evolution, organisms that are more adapted to environment are more likely to survive and pass on the genes that aided their success. Therefore, this process causes species to change and diverge over time.
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All plant cell walls are made of _____ while all fungi cell walls are made of _____.
The cellulose and chitin-based cell walls of plants and fungus, as well as the cell walls of bacteria, are not the same.
What types of tactile sensors are there?Merkel's disks, Meissner's corpuscles, Ruffini endings, and Pacinian corpuscles are the four main subtypes of tactile mechanoreceptors. In the upper layers of skin that has hair or is glabrous, Merkel's disks are slow-adapting, unencapsulated nerve terminals that respond to gentle touch.
What role does tactile play?The tactile corpuscle is in charge of delivering low-frequency vibrations and light touch sensations from the peripheral nervous system to the brain.
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gamma rays may be used to kill pathogens in ground beef. one irradiation facility uses a 60co source that has an activity of 1.0×106ci. 60co undergoes beta decay and then gives off two gamma rays, at 1.17 and 1.33 mev; typically 30% of this gamma-ray energy is absorbed by the meat. the dose required to kill all pathogens present in the beef is 4000 gy.
It is true that one irradiation facility uses a 60co source that has an activity of 1.0×106ci. 60co undergoes beta decay and then gives off two gamma rays, at 1.17 and 1.33 mev.
Irradiation facility is designed with overlapping layers of protection, interlocks, and safeguards to stop accidental radiation exposure. In addition, "melt-downs" don't occur in facilities as a result of the radiation supply provides off radiation and decay heat; but, the warmth isn't ample to soften any material.
A pathogen is outlined as an organism inflicting sickness to its host, with the severity of the sickness symptoms spoken as virulence. Pathogens are taxonomically wide numerous and comprise viruses and bacterium likewise as animate thing and cellular eukaryotes.
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The process of antibody production after initial exposure to an antigen is known as the _________ response.
Lag
Latent
Primary
Secondary
The process of antibody production after initial exposure to an antigen is known as the Primary response.
What is the name of the initial antigen exposure?Primary response refers to the immune response that develops after being exposed to an antigen for the first time. The immune response that develops after a second or additional exposures to an antigen, stronger and quicker, is referred to as a secondary reaction.A process known as somatic hypermutation enables the B cell to start coding for a new antibody after antigen presentation to the B cell lymphocytes has taken place. This antibody will have a distinctive Antigen Binding Site in the variable region that can bind specifically to an epitope from the antigen.To learn more about Primary response refer to:
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Organism a is eukaryotic, unicellular, and lacks a cell wall. Organism b is eukaryotic, multicellular, has cell walls, and is autotrophic. In which kingdoms should these organisms be classified?.
Kingdom Plantae includes autotrophic organisms with cellulosic cell wall while kingdom Animalia includes heterotrophic organisms without the cell wall.
Kingdom Animalia is characterized by the presence of multicellular body, heterotrophic mode of nutrition, eukaryotic cells and cells without cell wall. Kingdom Plantae are autotrophs because they use energy from sun to produce their food. Plants have cellulose as a cell wall material.
Cell walls are generally absent in many eukaryotes, including animals, but are present in some other ones like fungi, algae and plants, and in most of the prokaryotic organisms.
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50 points!!
Which is true about cell membranes?
Cell membranes consist of a single layer of phospholipids.
Cell membranes are made of lipids and carbohydrates.
Cell membranes are rigid and protect the cell.
Cell membranes form barriers around the cell.
Answer:
Part of the cell membrane is a phospholipid bilayer,
Explanation:
Cell membranes are composed of proteins and lipids. Since they are made up of mostly lipids, only certain substances can move through. Phospholipids are the most abundant type of lipid found in the membrane. Phospholipids are made up of two layers, the outer and inner layers., made of two layers of phospholipid molecules. However, the cell membrane also contains other macromolecules like membrane proteins, and carbohydrates. Therefore, we can say that the cell membrane is made of a phospholipid bilayer, but it is not only made of it.
Even though horses and donkeys look very similar they are not really the same_?
A. biology
B. genetic variation
C. organism
D. population
E. species
F. environment
G. offspring
H. overproduction
i. reproduction
D.
Identify the Salute and olvent in a olution made from 15 gram of oxygen and 5 gram of helium
Oxygen is the solvent and helium is the solute.
What is a solute and solvent ?To create a homogenous mixture, a solute must dissolve in a solvent. The substance that dissolves in a solvent to create a homogeneous mixture is known as a solute.
The substance that typically determines the solution's physical state is the solvent (solid, liquid or gas). The substance that dissolves in the solvent is known as a solute. For instance, in a solution of salt and water, salt serves as the solute and water as the solvent.
In fluid solutions, there is a larger concentration of solvent than solute. Salt and water are two excellent examples of substances that we use on a daily basis. Since salt dissolves in water, it serves as the solute.
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cells synthesize a variety of complex molecules to include proteins, nucleic acids, lipids and carbohydrates. a large majority of the molecules that cells make are proteins. which three organelles are most involved in synthesizing proteins?
The three organelles that are most involved in protein synthesis include: Nucleus, Ribosomes and Endoplasmic reticulum (ER).
What is protein synthesis and its significance?The protein synthesis is the formation of polypeptide chain from amino acids. It takes place in two stages of transcription and translation. Transcription is the transfer of genetic instructions from DNA to mRNA in the cell nucleus. It includes three steps: initiation, elongation, and termination. Translation is formation of protein from mRNA.
Proteins are largest, complex molecules that play many important roles in the body. They perform most of their work inside the cell and are necessary for the structure, function and regulation of body tissues and organs
What is needed for protein synthesis?Several essential substances must be present for protein synthesis, including the 20 amino-acids that make up proteins. Another essential component is a set of enzymes that work in this process. DNA and another form of nucleic acid called ribonucleic acid (RNA) are also essential.
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Genotypes for:
Homozygous dominant
Heterozygous
Homozygous recessive
Phenotypes for:
Homozygous dominant
Heterozygous
Homozygous recessive
Can you also provide an explanation? I want to actually know how to figure this out myself.
Assume that we have the dominant allele 'D' and the recessive allele 'd'. Lets make the example that the gene these encode for the fake disease called 'Fake Disease'. The recessive allele 'd' encodes for if you HAVE the disease. The dominant allele encodes for NOT having the disease. You get passed on a version of this allele from both your parents and hence any individual will have the genotype of 'XX' (basically your genotype will be a combination of the two alleles dependent on what you got from your parents). ALSO for a recessive allele to be expressed in the phenotype (definition below) you need to have two copies of it because other wise the dominant allele 'D' will 'hide' the occurance of the single 'd' allele.
Homozygous (the prefix 'homo' means SAME).
Heterozygous (the prefix 'hetero' means DIFFERENT).
Genotype = the genes you have in your genome
Phenotype = what trait is expressed due to what genes you have
Homozygous dominant = SAME of the Dominant allele
- Genotype: DD (the two alleles you have are the same and are both the dominant alleles)
- Phenotype: Does not have Fake Disease (as the recessive 'd' allele encodes for this and the individual does not have two of the 'd' the disease is not expressed in the genotype)
Heterozygous = DIFFERENT alleles
- Genotype: Dd (you get one copy of each allele but both are different from each other)
- Phenotype: Does not have Fake Disease (the dominant allele 'D' is what it is called 'dominant' it dominants over the recessive allele and will cover the expression of the recessive allele)
Homozygous Recessive = SAME of the Recessive Allele
- Genotype: dd
- Phenotype: Does have Fake Disease (having two recessive alleles of a trait means that it is expressed in the individual.
Hopefully this helps!!! (sorry if you already know some of the stuff I explained I don't know your level of knowledge on this topic and just wanted to make sure my answer made sense)
which form of reproduction can result from damage to the original animal? group of answer choices fragmentation fission budding parthenogenesis
Fragmentation can result from damage to the original animal
What is fragmentation ?Body breaking into two pieces with subsequent regeneration is known as fragmentation. A separate individual will reappear if the animal has the ability to fragment and the part is large enough. For instance, many sea stars use fragmentation to carry out asexual reproduction.
In some organisms, such as planarians, when an organism's body splits into several pieces, each piece develops into a separate offspring. Fragmentation is the term for this. It can happen accidentally, through harm from predators or other sources, or as a result of natural reproduction.
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in a pond that experiences succession, what relationship would you expect regarding changes in species richness over time?
In a pond that experiences succession, species richness increases over time.
During succession, species diversity declines. A large number of species that enter the canopy through tiny holes and a comparatively small number that regrow in the huge clearings are characteristics of communities where such large patches are uncommon. Following a significant disturbance, diversity grows throughout the succession phase.
New species enter a region at each stage and may displace the ones that came before them, frequently as a result of environmental modifications produced by the preceding species. The community may eventually attain a condition of relative stability and stop shifting in composition.
Hence, species richness increases as result of succession.
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The temporary release of stress hormones into the bloodstream facilitates
memory reconstruction
repression
retrograde amnesia
retroactive interference
long-term potentiation
The temporary release of stress hormones into the bloodstream facilitates long-term potentiation (Option 5).
What is the process of long-term potentiation?The process of long-term potentiation is a physiological process associated with the increase in the synaptic signaling pathway among nerve (neuronal) cells, which may be associated with the secretion of different chemical messengers including hormones.
Therefore, with this data, we can see that the process of long-term potentiation is associated with enhanced synaptic signaling and long-lasting neuronal communication, a process linked to the release of chemical messengers called hormones.
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n pea plants, the allele for purple flowers, p, is dominant over the allele for white flowers, p. which conclusion about phenotype and genotype is possible?(1 point)
Dominant and recessive are used in the inheritance pattern of traits. Dominant traits mask the expression of recessive alleles whereas recessive traits can be expressed when two copies of allele is present.
What is the conclusion about phenotype and genotype?It is given that purple flower is dominant and white flower is recessive in pea plants. Hence, presence of at least one P allele will give purple color (dominant phenotype) to the flower. Therefore, the PP is a homozygous dominant genotype. Hence, the phenotype of PP is purple color.
Genotype of the purple (phenotype) flower is PP and that of white flower (phenotype) is pp.
As the purple flowers are dominant over the recessive, their genotype would be PP or Pp. White flowers phenotype would be white and genotype pp because they are recessive.
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A species that has a large effect on the types and abundance of other species in an ecosystem
In an ecosystem, keystone species play important functions that have a significant impact on the kinds and abundance of other species.
What is meant by ecosystem?An ecosystem is a region where a bubble of life is created by plants, animals, and other species interacting with the weather, environment, and other factors.
What role does the ecology play?Human wellbeing and survival depend on healthy terrestrial ecosystems because they give us access to critical goods and advantages. More than 90% of our food originates from terrestrial ecosystems, which also offer us energy, resources for construction and clothing, health-related products, clean water, and pure air.
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After some important cellular processes, there is an abundance of carbon dioxide (co2) molecules inside the cell, but not enough molecules outside the cell. Co2 molecules would.
After some important cellular processes, there is an abundance of carbon dioxide (CO₂) molecules inside the cell, but not enough molecules outside the cell. CO₂ molecules would move outside the cell due to the process of diffusion.
Cell is the basic fundamental unit of life that acts as the building block of all the organisms. A cell can be of two types based on its origin: prokaryotic and eukaryotic.
Diffusion is the process of movement of solute particles from the region of its higher concentration to lower concentration. This movement does not required the expenditure of energy and hence it is a passive process.
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Prokaryotes that use light for their energy source and co2 for their carbon source are called _____.
Answer:
Photoautotrophs
Explanation:
Photoautotrophs are cells that capture light energy, and use carbon dioxide as their carbon source. There are many photoautotrophic prokaryotes, which include cyanobacteria. Photoautotrophic prokaryotes use similar compounds to those of plants to trap light energy.
a large population of cockroaches was sprayed with an insecticide. a few of the cockroaches survived and produced a population of cockroaches that was resistant to this spray. what can best be inferred from this example?
The inference that can be drawn when a large population of cockroaches was sprayed with an insecticide where a few of the cockroaches survived and produced a population of cockroaches that was resistant to this spray is that: Individuals with favorable variations survive and reproduce.
Insecticide are the compounds that are used to get rid of the pests and insects in the crop fields or at homes. They can be organic, synthetic, inorganic or miscellaneous.
Variations are the changes in the genetic sequence of an organism. These are also called mutations. Usually the mutations are harmful but beneficial mutations can arise as well that help the population of organisms to survive better in the unfavorable conditions.
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Which two factors can both cause a population to increase?
1. birth rate and emigration
2. birth rate and immigration
3. death rate and immigration
4. death rate and emigration
Answer:
2
Explanation: birth rate and immigration since when people immigrate to an area, the population increases. When people are born, the population increases.
What does the replication of DNA during interphase ensure during cell replication?
A. Mutations are connected before the cell divides
B. Each daughter cell gets an exact copy of the cells DNA
C. Crossing over occurs prior to cell division
D. Genetic variation is created in daughter cells
I do not understand how to do this. Pls, explain.
Answer:
The answer should be A. They could have genotype Cc or cc
Explanation:
C c
[tex]{c}\\{c}[/tex] [tex]\left[\begin{array}{ccc}Cc&cc\\Cc&cc\end{array}\right][/tex]
I tried to make a punnet square as best as I could..
To jog your memory about the basics of punnet squares and what certain words mean.
Dominance is shown by a capital letter, while recessive is denoted by lowercaseIf a person is homozygous they carry two identical alleles (CC or cc).
Two capitals mean a person is homozygous dominant, whilst two lowercase means a person is homozygous recessive.If a person is heterozygous that means that they carry two different alleles, one dominant and one recessive (Cc).
The dominant allele will always be present over the recessive.As the statement shows, individual 5 is heterozygous, meaning their genotype is Cc.
Their partner is a shaded individual, which means they have cystic fibrosis, which is homozygous recessive. This means their genotype is cc.
When doing a punnet square, you will see the two outcomes of possible genotypes are Cc and cc. This means there is a 50% (or 2/4) chance of individual 12 being healthy (Cc), or there is a 50% (or 2/4) chance of the individual having cystic fibrosis (cc).
ill in the blank. a gujarati village comprises a(n) of organisms: a. ecosystem b. habitat c. niche d. community
A Gujarati village comprises an ecosystem of organisms.
A typical Gujarati village consists of clusters of houses along a central street. The village center has a temple village square shops and a fountain. The land and trade castes live in this central area while the artisan castes live further afield.
An ecosystem is a community of organisms in a particular area. The term eco refers to a part of the world and the system refers to a coordinating entity. Gujarati, like other Indo-Aryan languages, was developed through Prakrit, a large group of ancient Indic languages, and Ababramsha, a transitional dialect spoken in India between the 6th and 13th centuries AD. It comes from Sanskrit.
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ill mark u as brainlyist if you ancer the quiston please asap
Thomas observed a graph showing changes in Earth's glaciers. After looking at the graph, he came to a conclusion about Earth's climate and stability. Based on the graph below, what conclusion did Thomas make about Earth's climate?
Earth's climate goes through short-term cycles of cooling and warming.
Earth's climate goes through long-term cycles of cooling and warming.
Earth's climate appears to be cooling over a period of time.
Earth's climate appears to be irregularly cooling and warming.
Answer: The correct Answer is D, Earth's climate goes through short-term cycles of cooling and warming.
Explanation:
how can alternative rna splicing result in different proteins derived from the same initial rna transcription
The alternative RNA splicing results in different proteins derived from the same initial RNA transcription introns/exons being read and chosen differently. Original RNA is spliced differently producing varying mRNA.
Alternative splicing can provide evolutionary flexibility. Single point mutations can result in the occasional exclusion or inclusion of specific exons from transcripts during splicing, allowing new protein isoforms to be generated without loss of the original protein.
Alternative splicing is a cellular process in which exons of the same gene are combined in different combinations to produce different but related mRNA transcripts. These mRNAs can be translated to produce different proteins with different structures and functions all from a single gene. Alternative splicing is a molecular mechanism that alters the pre-mRNA structure prior to translation.
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What would be the consequence of ectopically expressing Hoxd10 throughout the developing mouse limb bud?
Check all that apply.
converting the thumb into a middle finger.
converting the thumb into an index finger.
converting the index finger into a middle finger.
converting the index finger into a thumb.
converting the middle finger into an index finger.
converting the middle finger into a thumb.
Converting the thumb into an index finger will be the correct option.
What is ectopic pregnancy?
In an ectopic pregnancy, a fertilized egg implants outside the uterus, usually in one of the fallopian tubes.
Fallopian tubes are tubes that connect the ovaries and the uterus. If the egg gets stuck inside, it cannot develop into a baby and can be detrimental to your health if the pregnancy continues. It usually needs to be removed medically or surgically.
About 1 in 90 pregnancies in the UK are ectopic. This equates to approximately 11,000 pregnancies per year.
Therefore, Converting the thumb into an index finger will be the correct option.
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