What energy takes place within cells?

Abiotic factors in an ecosystem comprise the non-living components, such as sunlight, that might limit the growth of autotrophs by restricting the capabilities for photosynthesis. Autotrophs are self-sustaining organisms that need sunlight to manufacture their own food. Insufficient sunlight, therefore, becomes a limiting factor for these organisms and affects the entire ecosystem.

In the context of an ecosystem, an abiotic factor refers to all of the non-living physical and chemical factors that influence the distribution and abundance of organisms. A limiting abiotic factor for autotrophs (organisms that can produce their own food from inorganic substances) in this ecosystem could be sunlight. Sunlight can be considered a limiting factor because it is necessary for photosynthesis, the process by which autotrophs produce their own food. If the sunlight is insufficient, it limits the growth and productivity of autotrophs, thereby influencing the entire ecosystem.

https://brainly.com/question/31734358

#SPJ2

Final answer:

Sunlight is an abiotic limiting factor for autotrophs in an ecosystem because it is essential for photosynthesis, affecting their growth and the entire food chain.

Explanation:

One abiotic factor that functions as a limiting factor for the autotrophs in an ecosystem is sunlight. Sunlight is considered a limiting factor because plants and other photosynthetic organisms require it for photosynthesis, which is fundamental to their energy production and growth. Without sufficient sunlight, these autotrophs cannot produce enough energy to sustain their metabolic processes, grow, and reproduce. This limitation can affect the entire food chain since autotrophs serve as the primary producers and form the base of the ecosystem's energy pyramid.

Answer:

Molecular clock can be described as a technique which scientists use for determining when two life forms might have diverged based on the mutation rate which occurs in biomolecules.

Molecular clocks can be used against infectious diseases because the infection causing agents such as bacteria or viruses contain DNA and RNA. Mutations constantly arise in these infectious agents at the time of their replication. Molecular clocks can help us to sequence different infections and check how similar and different they are to each other. Based on the similarities and differences we can determine the time of the disease and its treatment.

Answer: c) Cat

Explanation:

A heterotroph is an organism which depends on plants or other animals for food because it cannot manufacture its own food. All animals are heterotrophs while green plants are autotrophs because they can manufacture their own food using chlorophyll in a process known as photosynthesis. Heterotrophs feed on complex organic food materials.

Answer:

answer is carbon dioxide its correct

Answer:

carbon dioxide

Explanation:

Answer:

the elipsophre state

Explanation:

this is when the muscles and skine start to spoil

Answer:

B,C,E

Explanation:

Answer:  

B) 85% of the U.S. corn is GMO; modified to be resistant to herbicides

c)The U.S. does not require that GMO foods be labelled as such.

E)Technology now allows us to transfer genes between organisms of different species and even kingdoms.

Explanation:

Answer:

Meiosis is known as the reduction division. It produces four haploid (n) gametes containing only one chromatid from each chromosome. Therefore, at the end of meiosis 2, the number of chromosomes is half that of the original cell.

Explanation:

Following is a summary of the events of meiosis:

Interphase:

Prepares the cell for division. Duplication of DNA, duplication of centrioles occurs and the cell grows in size. At this stage the cell is diploid (2n).

Prophase 1:

First stage of Meiosis 1.The centrioles move to the poles of the cell, the nuclear membrane disintegrates, homologous chromosomes pair up (in the form of tetrad), form a chiasmata and then exchange segments of chromosomes with each other. This process is called crossing over.

Metaphase 1:

Involves the arrangement of the crossed over, homologous chromosomes on the metaphase plate which is sort of like a web of spindle fibers that originates from the centrioles.

Anaphase 1:

The tetrads arranged on the metaphase plate are pulled apart by the spindle fibers. This is the result of tension that build up in the spindle fibers as they grow towards opposite poles.

Telophase 1:

The last stage of meiosis 1. Involves the arrival of the chromosomes at the poles, the nuclear membrane starts to form and the chromosomes start decondensing. Telophase 1 yields 2 daughter cells with half the number of chromosomes as that in the parent cell.

Meiosis 2:

Meiosis 2 is exactly similar to mitosis. The only difference is that the haploid cells entering meiosis 2 do not duplicate their DNA. Meiosis 2 just involves the separation of the sister chromatids of homologous chromosomes.

As mentioned above, interphase does not occur before meiosis 2.

Prophase 2 involves the disintegration of nuclear envelope, centrosomes start moving to the poles.

Metaphase 2 arranges the chromosomes on metaphase plate.

Anaphase 2 separates the sister chromatids from the chromosomes.

Telophase 2 develops the nuclear envelope and separates the nuclei of the daughter cells into 2. Nuclear division id followed by cytokinesis (division of cytoplasm). Telophase 2 result sin 4 haploid daughter cells with one chromatid from each chromosome.

Lack of interaction with social and cultural environments transforms people into members of society is a false statement.

Explanation:

Socialization which involves social interaction of people with each other will help transform themselves into active members of society.

The way we interact and project ourselves to our friends, relatives, parents, teachers, colleagues, neighbors and others grades our socialization process.

Knowing about the social and cultural environment of society and interacting with others based on that knowledge will help an individual to interact closely with other people and hence will transform to being a member of that society.

People who are less or unsocialized, self-interested shows a lack of interest in knowing the social and cultural environment of others and hence would not be successful in socializing.

Socialization process helps to change the status of an individual from “I” to “me”. The “me” part understands the values, expectations, and rules of a society and hence interacts socially to become a member of society.

Answer:

Exposure to the disease

Explanation:

Before vaccines,  the only way to develop immunity to a disease was to be exposed to the disease-causing pathogen without being harmed by it. A good example of this is smallpox, which was also the first vaccine developed. It was noticed that milk maids weren't catching and dying from small pox like everyone else, because they had been exposed to cowpox. This premise was used to create the first vaccine.

Vaccines give you immunity by injecting you with a small amount of a (usually inactive) pathogen. inside your body.  This means your immune system produces antibodies against it. Similar to what happened with the milkmaids.

A.  Report her results in a scientific journal - should be the action that the biologist should do next

Explanation:

Once conducting an experiment a biologist or a scientist should record the values, observations and inferences correctly because science requires construction of all data, facts, values, explanations, observations, and predictions that are observed and evidenced.

Research findings are published in a scientific journal because the research findings are stored, saved and can easily be referred for future reference.

This will be evaluated by other academicians and scientists and can be compared with past results to value the achievements made by the current researcher.  This will also give way for future prospects in the research.

This will add academic credibility to both the biologist and her institute. When presented in a literature form, this can be accessed by scientists, academicians, peers and others to refer and cite valuable information in their research.  

Others can use the findings to help with advancements of the research in the same topic. It gives an immense feeling for the biologist or any researcher to see his/her work being published on a recognized journal and will encourage to work more.

Answer:

I think it is C

Explanation:

Hope it helps

Answer:

the wieght

Explanation:

Answer:

a = f (net) / m

Explanation:

a = f (net) / m, where a = acceleration, f (net) = the net force acting on the object, m = the mass of the object.

Answer:

b is false

Explanation:

not all living things have a nucleus

The incorrect statement is that 'Organisms of all domains have a nucleus.' Only eukaryotes, one of the three domains of life, have a nucleus. Bacteria and archaea, the other two domains, do not have a nucleus. However, all organisms pass on genetic information, are made of cells, and have cell walls.

The statement which is not true regarding the organisms in the three domains of life is B: 'Organisms of all domains have a nucleus.' This is incorrect because only eukaryotes, one of the three domains of life, have a nucleus in their cells. Both bacteria and archaea, the other two domains, lack a nucleus. Their genetic information is instead contained within an area of the cell called the nucleoid.

Regarding statements A, C, and D, they are all true. All organisms in every domain do indeed pass on genetic information. For example, they do this through processes like cell division and reproduction. All organisms are also made up of one or more cells, and organisms from all domains have cells walls, though the composition of these cell walls can vary greatly between the domains.

https://brainly.com/question/32820008

#SPJ3

MM'Ss  or MMSs are the possible genotype of Hermione's parents.

Explanation:

Muggles have a gene for magic but not expressed in them, S represents silencing, s is no silencing).

If Hermione's genotype is MMss or MM'ss

then Hermione's parents would have Ss  (but did not express S in Hermione and parents were heterozygous)

Hermione's parents could have M' M alleles but M' could or could not have appear in this case

so parents genotype are

MM'Ss  or MMSs

    It can be checked by crossing the possible genotype of parents

   M   M'              s    S

M MM MM'      s  ss   Ss      thus Hermione has this possible combination

M MM MM'       S Ss  SS      as  MMss ,  MM'ss

Answer:

Explanation:

    A bay horse is a black-based animal with the agouti gene, which is the modifier that limits the horse’s black color to its points (legs, mane, tail, eartips). The black-based horse can be either homozygous for the extension allele (two copies black – EE) or heterozygous (one copy black, one copy red – Ee). Because black is dominant, an Ee horse will appear black-based.

      A horse can carry the agouti gene whether it is black or red (this is why a black horse bred to a chestnut or sorrel horse may produce a bay). It is impossible to tell phenotypically (from looking at the horse) if it is homozygous or heterozygous.

     This means that when you cross a cremello (a sorrel/chestnut with two copies of the cream gene) on a bay (black with agouti), you can get buckskin, palomino or smoky black, depending on the horses’ exact gene combination.

     references:

Answer:

buckskin(The horse has a tan or gold colored coat with black points (mane, tail, and lower legs))

palomino(gold coat and white mane and tail, the degree of whiteness can vary from bright white to yellow)

smoky black(coat is either black or a few shades lighter than true black)

Explanation:

Answer:

Favors random changes (retinal tear)/ nerve cells in front of retina

Explanation:

i could only say 2 i dont know the other one.

Final answer:

Three imperfections of the vertebrate eye include the presence of a blind spot, variability in visual acuity and sensitivity among different species, and astigmatism as a vision defect.

Explanation:

Three imperfections of the vertebrate eye are the presence of a blind spot, variability in visual acuity and sensitivity among different species, and the occurrence of astigmatism as a vision defect.

The blind spot is caused by the positioning of nerve cells and blood vessels in front of the light-sensitive cells of the retina. This design flaw is a result of the evolutionary path that led to the vertebrate eye.

Visual acuity and sensitivity differ among species based on their ecological niches. For example, eagles have a higher visual acuity than humans due to their specialized life-style.

Astigmatism is an unevenness or asymmetry in the focus of the eye, resulting in elongated or blurry images. It can be caused by irregularities in the cornea, lens, or retina.

Answer:

The correct option is A) a new combination of inherited traits that can appear in the offspring

Explanation:

Meiosis can be described as a type of cell division which occurs in the sex cells only. This kind of division causes the chromosome number to be reduced to half of that of the parent cell. This happens so that the chromosome number can be maintained in a fertilized zygote.

The phenomenon shown in the picture is of crossing over. Crossing over is the process by which homologous chromosomes exchange DNA segments so that genetic variation can occur among the parents and offspring.

The correct option is A) a new combination of inherited traits that can appear in the offspring

The following information should be considered:

Learn more: brainly.com/question/17429689

Answer:

There needs to be enough sea urchins for otters to come and there needs to be enough otters to eat the urchins.

Explanation:

Final answer:

Meiosis is essential for producing gametes because it halves the number of chromosomes and facilitates genetic diversity, making it distinct from mitosis that produces identical diploid cells for growth and repair.

Explanation:

Meiosis must be used instead of mitosis to produce gametes because meiosis reduces the number of chromosomes by half, creating haploid cells, and introduces genetic variation. During meiosis, homologous chromosomes separate and segregate randomly, producing gametes with unique combinations of chromosomes.

This is essential for sexual reproduction, where two gametes unite to form a new organism with a complete set of chromosomes. Genetic variation is increased through processes such as crossing over during meiosis, contributing to the evolutionary success of sexually reproducing organisms.

Meiosis involves two cell divisions resulting in four unique haploid cells, each with half the DNA content of the parent cell, which is important for preventing the doubling of chromosome number during fertilization.

Contrastingly, mitosis is designed to produce two genetically identical diploid cells for growth and repair, and it retains the full set of chromosomes found in the original cell, which is not suitable for the production of gametes.

Meiosis must be used to produce gametes instead of mitosis because meiosis reduces the chromosome number by half, which is essential for maintaining the consistent chromosome number across generations through sexual reproduction.

In sexually reproducing organisms, diploid organisms produce haploid gametes (sperm and egg cells) that combine during fertilization to form a diploid zygote. If mitosis, which is a process of cell division that results in two genetically identical diploid daughter cells, were used to produce gametes, the chromosome number would double with each generation, leading to an exponential increase in chromosome number, which is not sustainable.

Meiosis, on the other hand, involves two rounds of cell division following a single round of DNA replication, resulting in four haploid cells. This process ensures that each gamete contains half the number of chromosomes of the parent organism. When two gametes fuse during fertilization, the resulting zygote has the correct diploid number of chromosomes, which is characteristic of the species.

Furthermore, meiosis introduces genetic diversity through the processes of crossing over during prophase I and independent assortment of chromosomes during metaphase I. This genetic variation is crucial for the evolution and adaptation of species.

In summary, meiosis is necessary for the production of gametes because it:

1. Reduces the chromosome number by half to maintain a stable chromosome number across generations.

2. Ensures that the zygote formed after fertilization has the correct diploid number of chromosomes.

3. Introduces genetic diversity through crossing over and independent assortment.

This process is called DNA Replication. Replication is essential/needed with DNA and when the cell divides into two parts, the two daughter cells have to have the same genetic information. Replication is needed for this genetic information to be copied.

- CloutAnswers

The duplication of DNA to produce two identical DNA strands is known as semiconservative DNA replication, where each new molecule contains one parental strand and one new strand.

The process where DNA is duplicated to create two strands of DNA is known as DNA replication. This is a semiconservative process, which means one strand from the original DNA molecule is conserved, or kept the same, in each of the two new DNA molecules. During semiconservative replication, an enzyme called DNA helicase breaks the hydrogen bonds between complementary bases, unfolding the double helix. Then, DNA polymerase reads the existing strands and adds new nucleotides to form complementary strands. The resulting two daughter DNA molecules, therefore, consist of one old parental strand and one new strand, preserving half of the original DNA molecule in each.

This complex process occurs during the synthesis phase of the eukaryotic cell cycle, ensuring that each new cell receives an exact copy of the DNA. DNA replication is also considered an anabolic process because it involves the synthesis of new molecules.

Answer:

Percentage of

Trees Remaining

2010

2015

2020

2025

2030

2035

Year

What would a graph of oxygen production look like for this forested area?

A line that is increasing

Explanation:

It is an established fact by scientist that availability of trees increases oxygen rate in an environment. From the above question, the increase in number of trees as allotted by increase in years reflect an increase in oxygen available. Trees makes use of carbondioxide exhale by humans while humans make use of oxygen exhale by trees.  

Answer:B

Explanation:

An octopus only reproduces one time, but penguins may reproduce between 4 and 12 times in their lives.

C.

Baby penguins are left to fend for themselves from the time they hatch, so they quickly become self-sufficient.

D.

The success of a species depends on the number of offspring that survive long enough to reproduce.

Answer:

D

Explanation:

I got this exact same question on Study Island.

"The success of a species depends on the number of offspring that survive long enough to reproduce, not just the number of offspring produced at a time or even in a lifetime. A penguin who has only one young can devote a lot of time, attention, and care to it, greatly increasing its chances of surviving long enough for it, too, to reproduce. An octopus, on the other hand, usually dies shortly after reproducing. A young octopus has no parent to protect or teach it, so the vast majority of octopi do not survive long enough to reproduce." -Study Island

Hope this helps :D

Answer:

The correct option is A)  It is not written by an authority

Explanation:

In the English language, credibility can be described as the quality of an object to be reliable or trusted.

A piece of written work which does not mention the name of the writer may be considered to be not reliable and trustworthy. Hence, the correct option is A.

Other options, like option D, is not correct because a peer- reviewed journal carries authentic information as the work has been rechecked by different people who have expertise on the subject.

Answer:

A Remora fish would attach itself to a shark and use the shark for transportation and eat all the food that is left over from the shark. The symbiosis relationship between them is a commensalism relationship because the remora is getting its food and the shark gets no benefit.

Final answer:

The remora fish and the shark have a commensal relationship where the remora benefits from food and protection while the shark is unaffected. This is an example of commensalism, a type of symbiotic relationship.

Explanation:

The relationship between the remora fish and the shark is an example of commensalism. In this symbiotic relationship, the remora, often known as a pilot fish, benefits by attaching itself to the shark, feeding on the leftovers from the shark's meals and gaining protection while traveling through the ocean. On the other hand, the shark neither benefits from nor is harmed by the presence of the remora fish.

Commensalism is different from mutualism, where both species involved receive benefits, such as the relationship between goby fish and shrimp. It's also distinct from parasitism, where one organism benefits at the expense of the other. Commensal relationships may involve one organism using another for transportation or housing without any negative impact.

Answer:

Because it takes some time to adapt to the new level of light in the environment

Explanation:

Our inability to see when moving from a bright place to a dark room is due to the time it takes for our eyes to adjust from cone to rod activity, which is better suited for low-light conditions. This adjustment process leads to a temporary period of impaired vision known as dark adaptation.

We cannot see properly when we come out of a bright room into a dark one because our eyes need time to adjust to the lower levels of light. In a bright environment, our vision is dominated by cone activity, providing us with color vision and sharpness of sight. When we move into a darker environment, our eyes gradually switch to relying more on rod activity.

Rods are more sensitive to light but provide no color information and are more effective in low light. The transition from a well-lit area where cones are active, into a dark area where rods become more active, takes time, causing a temporary inability to see in the dark. This also explains why animals like owls and bats can see in what appears to be pitch darkness to us; their eyes are either more sensitive to light or adapted to different wavelengths, allowing them to see with less light than humans require.

Ultimately, what is experienced as 'darkness' is a limitation within our own visual system rather than a complete absence of light. With time, our eyes adapt, and we begin to see better in the dark theater or room, though it may never appear as bright to us as the outside because our perception of brightness is not directly proportional to the number of photons received.

The phenotype ratio of the offspring is 1:1:1:1

25% progeny will have the genotype similar to their mother. DdLl

Explanation:

Dimples are dominant  = D  long eyelashes are dominant = L

no dimples are recessive = d  short eyelashes are recessive = l

The genotype of the man with no dimples and short eyelashes

ddll

The genotype of the woman who is heterozygous for both the traits

DdLl

From the Punnet square:

         dl     dl    dl    dl

Dl   Ddll   Ddll   Ddll Ddll

DL DdLl  DdLl   DdLl DdLl

dL ddLl  ddLl    ddLl  ddLl

dl  ddll   ddll    ddll    ddll

The genotype ratio is= 1:1:1:1

Phenotype ratio= 1:1:1:1

 ( from the results 4 progenies of each genotype combination and phenotype traits as ( Ddll  dimple-short eyelashes, DdLl Dimples and long eyelashes, ddLl no dimples- long eyelashes, ddll no dimples short eyelashes.)

The mother is heterozygous for both the characters so 25% of the progeny will have the same genotype as their mother.

33.33% of their offspring will have the same genotype as their mother (DdLl).

Step 1

To solve this, let's use Punnett squares to determine the phenotypic ratio and then calculate the percentage of offspring with the same genotype as the mother.

The man's genotype: no dimples (dd) and short eyelashes (ll).

The woman's genotype: heterozygous for both traits (DdLl).

Step 2

First, let's create a Punnett square:

      Dd     Dd

  ----------------

Ll | DDLl | DdLl

Ll | DDLl | DdLl

Step 3

Now, let's determine the phenotypic ratio:

- Dimples (D) and long eyelashes (L): 2 (DDLL)

- Dimples (D) and short eyelashes (l): 4 (DDLl)

- No dimples (d) and long eyelashes (L): 2 (DdLL)

- No dimples (d) and short eyelashes (l): 4 (DdLl)

So, the phenotypic ratio is 2:4:2:4, which simplifies to 1:2:1:2.

Step 4

Now, let's calculate the percentage of offspring with the same genotype as the mother (DdLl):

The total number of offspring is 2 + 4 + 2 + 4 = 12.

The number of offspring with the genotype DdLl is 4.

Percentage = (Number of offspring with DdLl genotype / Total number of offspring) * 100

Percentage = (4 / 12) * 100

Percentage = 33.33%

So, 33.33% of their offspring will have the same genotype as their mother (DdLl).

Answer:

The rock pocket mice rely on their fur color for camouflage. So, on the tan sand more light colored mice will survive because they blend in and on the dark lava rock more dark colored mice will survive and the allele for dark fur will be passed on to their offspring

Owing to the definition of fitness as being an organism's ability to survive in an environment, the fact that the color of pocket mouse aligns or blends with the color of their niche protects them from predation.

Therefore, pocket mouse select their living area based on their color in other to conceal their presence and keep them safe, hence, increasing their fitness level.

Learn more :https://brainly.com/question/16334297

Answer

Tempature

Explanation:

Answer: D) temperature

Explanation: Kinetic energy is the energy of a moving particle or body. When the temperature of a substance is increased, the particles of the substances gain kinetic energy, and when the temperature decreases the kinetic energy decreases. When the temperature of a substance is zero, the kinetic energy of the particles is zero. For example, when heat is applied to water, its temperature increases, and the kinetic energy of the particles begin to increase. If the heat persists, the temperature continues to increase and kinetic energy of the water particles continues to increase and the particles begin to move in a random manner, colliding with one another and the walls of their container until a point where the water begins to boil. When the heat is removed, the temperature decreases and the kinetic energy of the water particles decreases until the water cools.

Answer:

D) there is a trade of between the two variables

Explanation:

this makes more sense