Explain why the distribution of biomes in the northern hemisphere is similar but not identical to the distribution of biomes in the southern hemisphere
How does the fluid sideways motion of the plasma membrane allow water to freely pass into and out of the cell?
What is evolutionary theory?
"according to ackerman, exactly what causes leaves to change color? what particular conditions cause the brightest colors in autumn leaves?"
The process of evolution toward niche divergence in the face of competition is called ____________.
How the changing species concept has affected classification systems
Answer:
Affects directly.Explanation:
Affects directly because classification systems in biology are made with a logical structure of species to get ordered groups. For example, we have Taxonomy in biology, which is created to classify species; according to scientists this task has been doing for thousands of years ago, but had a big change of perception when Darwin published his Evolution Theory.
So, the last change in this subject was with Darwin. Modern system of classification is aimed to follow the Transmutation of Species, like Charles Darwin said.
As scientist discover new species, they have to add then in the data, that affected the classification systems.
What is a classification system?A classification system is a way to group and organize data to compare it with other data.
Different types of classification system used for different type of data.
Multiple classification systems may be used in some datasets.
As the science knowledge is elaborating, there are going to be changes in the classification system.
Thus, as the new species are discovering, that affected classification systems.
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The most plausible hypothesis to explain why species richness is higher in tropical than in temperate regions is that
European cuckoo birds lay their eggs in the nest of other bird species, allowing the other birds to raise their young. the cuckoo birds are therefore:
European cuckoo birds and other species engage in brood parasitism, laying their eggs in the nests of other birds to avoid parental care.
European cuckoo birds practice brood parasitism by laying their eggs in the nests of other bird species, letting the host birds raise their young. This behavior allows cuckoos to avoid the high costs of parental care. Some other bird species, like cowbirds, also engage in similar parasitic behavior by laying their eggs in other birds' nests.
Which of the following is an example of a beneficial mutation?
a mutation causing uncontrolled cell division in human tissue cells
a mutation inhibiting human immunodeficiency virus from entering the host cell
a mutation resulting in partial or complete loss of chlorophyll pigments in plants
a mutation resulting in a squirrel being born without ovaries
a mutation inhibiting human immunodeficiency virus from entering the host cell
Answer:
B
Explanation:
What element on the periodic table has 85 protons and 86 electrons?
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In 1944 charlie chaplin was involved in a legal battle over the paternity of a child born to joan berry, a young starlet. the baby was blood type b, the mother a, and chaplin o. from what you know about the inheritance of blood types, could chaplin have been the father of the child? (at the time of the trial, blood group evidence was not admissible in california courts. charlie chaplin was declared responsible for the child's support.)
Final answer:
An individual with blood type O can be the legitimate child of parents with blood types A and B if both parents carry the recessive 'i' allele.
Explanation:
In the case of blood type inheritance, if an individual has blood type O, which is represented by the genotype ii, they must have received an 'i' allele from each parent. On the other hand, if one parent has blood type A and the other has blood type B, there are a few possible genotypes for each. The blood type A parent could be either genotype AA or AO, and the blood type B parent could be either genotype BB or BO.
If both parents were carriers of the 'i' allele, meaning that the blood type A parent has the genotype AO and the blood type B parent has the genotype BO, then they could indeed produce an offspring with the genotype ii, resulting in a child with blood type O. This is because the child would inherit the 'i' allele from each parent.
Therefore, yes, an individual with blood type O could certainly be the legitimate child of parents where one has blood type A and the other blood type B, as long as both parents carry the recessive 'i' allele.
In the induced-fit model of enzymes, a substrate associates itself with which part of an enzyme?
Final answer:
In the induced-fit model of enzyme action, a substrate associates with the enzyme's active site, where the enzyme's conformation undergoes changes to achieve an ideal fit and reaction conditions.
Explanation:
In the induced-fit model of enzymes, a substrate associates with the active site of an enzyme.
Understanding the induced-fit model begins with the substrate approaching the enzyme. Substrates bind to the enzyme's active site, forming an enzyme-substrate complex (a) and (b). The enzyme then undergoes conformational changes (c) to better accommodate the substrate, enhancing the reaction by correctly orienting the substrate towards its transition state. Finally, the reaction products are released, and the enzyme returns to its original form, ready to catalyze another reaction (d).
This model illustrates how enzyme flexibility allows active sites to adjust their shape for different substrates while maintaining specificity, with only certain substrates fitting into the active site. This is due to the enzyme's ability to undergo dynamic structural adjustments, ensuring a precise interaction between the enzyme and the substrate, which facilitates the catalytic process.
Why does the inactive x appear to stain much darker than the other chromosomes?
What kind of solution occurs in your mouth when you eat something with a high salt content? a hypotonic solution an isotonic solution a hypertonic solutionWhat kind of solution occurs in your mouth when you eat something with a high salt content? a hypotonic solution an isotonic solution a hypertonic solution
Eli can remember what he did last week, but he cannot remember the birth of his cousin (which happened immediately before eli received a head injury in a motorcycle accident). what is eli's condition?
What role does phytoplankton Play in the food web of many aquatic ecosystems
A gamete from a human female contains _______. a gamete from a human female contains _______. 23 autosomes and a y chromosome 23 autosomes and either an x chromosome or a y chromosome. 22 autosomes, one x chromosome, and one y chromosome 22 autosomes and an x chromosome
1 pts maps can be deliberately or unintentionally developed to present false information
What is a condition in which nerves are entrapped between the metatarsal heads producing swelling with distal, radiating pain?
The writing system used in mesopotamia is called ________.
Final answer:
Cuneiform is the writing system used in Mesopotamia. It first started as a pictographic system but evolved to include both pictographs and syllabic symbols. The script allowed different Mesopotamian cultures to adapt it to their own languages.
Explanation:
The writing system used in Mesopotamia is called cuneiform. It was first developed around 3000 BCE to keep track of tax records. Originally, cuneiform started as a pictographic system where each word or idea was represented by a symbol. However, it later evolved to include both pictographs and syllabic symbols that represent sounds.
Cuneiform was a complex writing system that was used to symbolize a great number of sounds, allowing different Mesopotamian cultures to adapt it to their own languages. The script was initially read from left to right and bottom to top. Cuneiform was primarily used for record-keeping, but it eventually evolved to include the creation of true forms of literature.
Which sensation(s) does the vestibulocochlear nerve carry?
What occurs when myocardial tissue is destroyed in areas of the heart that are deprived of an adequate blood supply??
How do abiotic factors change within a community as a result of the succession of vegetation?
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The abiotic factors in the community have changed as the vegetative cover increases: more vegetative cover leads to the consumption of more water due to the presence of life forms; a dense forest is the result of less sunlight on the ground; and so on.
What is the importance of abiotic factors in a community?Abiotic factors are non-living physical and chemical elements in the environment that can influence the growth and behavior of living organisms, such as temperature, light, water, soil, and air quality and these factors, determine species survival rate, can have a significant impact on the structure and functioning of a community, for example, if a community is located in an area with cold winters, only species that are adapted to survive in cold temperatures will be able to survive there.
Hence, the abiotic factors in the community have changed as the vegetative cover increases: more vegetative cover leads to the consumption of more water due to the presence of life forms; a dense forest is the result of less sunlight on the ground; and so on.
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Enzymes lower the amount of activation energy needed for a chemical reaction to take place. In the picture above, an enzyme inhibitor has been placed between the enzyme and the substrate. Which of the following ideas best explains what is happening in the picture.
The substrate will be able to bond with the enzyme and the reaction will take place.
The stubstrate will be unable to attach to the enzyme
The immune system will see the enzyme as a foreign invader and attack it.
The enzyme will be unable to produce more enzymes.
What assembles some components of the cell membrane modifies proteins has ribosomes attached to it?
The rough endoplasmic reticulum (RER) is responsible for assembling some cell membrane components, and modifying proteins, and has ribosomes for protein synthesis. It also produces phospholipids for the cell membrane.
Explanation:Structure Responsible for Protein Synthesis and ModificationThe cellular structure that assembles some components of the cell membrane, modifies proteins, and has ribosomes attached to it is the rough endoplasmic reticulum (RER). Ribosomes are the cellular structures responsible for protein synthesis. They are found attached to the RER, synthesizing proteins that are then transferred into the lumen of the RER, where they may undergo further modifications such as folding or receiving sugar chains. In addition to protein modification, the RER synthesizes phospholipids for the cell membrane. The modified proteins and newly made phospholipids are packed into vesicles, which then travel to and fuse with the Golgi apparatus for final modifications before being transported to their final destinations, such as the plasma membrane.
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A segment of DNA that is artificially created from two or more organisms through use of DNA enzymes in and out laboratory is called
Answer:
Recombinant DNA.
Explanation:
DNA is the genetic material of almost all the living organism. The different organism has different band sue to the presence of short and sequence repeats and variable number of tandem repeats.
The molecular techniques allow the hybridisation of DNA of two different organism. The DNA produced by this process is known as recombinant DNA and the technology is known as recombinant DNA technology. This technology has importance in the medicine field.
Thus, the answer is recombinant DNA.
Explain what happens to muscle force production at extremes of length
Vwhat type of body movement occurs in the lower leg when a person kicks a soccer ball forward?
During cellular respiration, every living thing in this food web uses ______ gas and releases ______ back into the environment
Answer:
Blank 1 is oxygen
Blank 2 is carbon dioxide
In the circulatory system nutrients such as glucose and amino acids are transported by