Answers
Answer:
D- the formation of two or more species from a common ancestor.
Related Questions
A non-native animal is introduced into a diverse, mature ecosystem in equilibrium. Assuming that the animal has no natural enemies and that it thrives in the ecosystem, how will it affect the community?
A. Only the plants would be affected
B. The entire ecosystem would be affected
C. Only the animals would be affected
D. There would be no effect
Answers
Rocks, temperature and water are what part of the environment?
Answers
Answer:Biotic factors include animals, plants, fungi, bacteria, and protists. Some examples of abiotic factors are water, soil, air, sunlight, temperature, and minerals.
Explanation:
3. if covered earlier in your course, how could different nucleotide sequences result in the same amino acid sequences?
Answers
Different nucleotide sequences can result in the same amino acid sequences because multiple codons can code for the same amino acid.
Amino acid sequencesDifferent nucleotide sequences can result in the same amino acid sequences because of the redundancy of the genetic code. The genetic code is made up of three-letter combinations of the four nucleotides (A, T, C, and G), and each three-letter combination (codon) codes for a specific amino acid.
However, there are more codons than there are amino acids, so some amino acids are coded for by multiple codons. For example, the amino acid Alanine can be coded for by the codons GCA, GCC, GCG, and GCT.
Therefore, different nucleotide sequences can result in the same amino acid sequences because multiple codons can code for the same amino acid.
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Which part of a DNA molecule is responsible for the direct coding of specific traits in an organism?
A. The number of hydrogen bonds that hold the strands of DNA together.
B. The number of carbons in the DNA molecule.
C. The sequences of phosphates along each DNA strand.
D. The sequence of nucleotide bases in the DNA molecule
Answers
Answer:
the answer is D the sequence of nucleotides
Zoe is studying a mountainous region where a glacier is melting and retreating.
She constructs the timeline shown below to show her prediction of how the
region will change over time.
An arrow labeled time points from left to right, and has labels from 15 years to
115+ years. From left to right, the illustration shovs bare rocks, grasses an
shrubs, small trees, and then a dense, tall forest.
Why are the changes shown in the diagram classified as primary succession, and
not secondary succession? mm
(1 Point)
1
1
-Time
15 vears
35 vears
80 vears
A. The process results in the appearance of a climax community.
B. Many intermediate communities appear before the climax community.
C. The climax community appears after hundreds of years.
D. The process begins with pioneer species growing on bare rock.
Answers
The process begins with pioneer species that grow on bare rocky habitat.
Role of pioneer speciesThe changes shown in the diagram is classified as primary succession not secondary succession because the process begins with pioneer species that grow on bare rock. During the primary succession, the plants and animals first colonize on a barren and lifeless habitat, so these organisms is known as pioneer species.
Primary successionWe can see that there is no animal and plants present on the rocky habitat and after sometime the plant and animals colonize on the bare rock which shows us primary succession not secondary succession so we can conclude that the process begins with pioneer species that grow on bare rocky habitat.
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why is it necessary to have 6co2 entering the chloroplast
Answers
If you wanted to find an animal from a phylum that commonly exemplifies an open circulatory system, you would select a/an
Answers
One factor that could account for a rise in the water table is:
A. more wind.
B. more precipitation.
C. more clouds.
D. less porous soil.
SUBMIT
Answers
What are two major factors that control the development of soil in a given location?
vegetative cover and slope
Answers
Answer: bedrock composition and climate
Explanation:
The major factors that control the development of soil in a given location are bedrock composition and climate.
The soil is a substrate composed of different materials, which can be both organic and inorganic.Bedrock refers to the solid rock beneath soil and gravel. The climate is a major factor that regulates processes that decompose the organic material in the soil.In conclusion, the major factors that control the development of soil in a given location are bedrock composition and climate.
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Cell differentiation is the result of gene expression. Genes can be regulated several ways. For example, small interference RNA molecules (siRNA), prevent gene expression by binding to the product of transcription. How do siRNA molecules silence genes?
a.) They bind to tRNA.
b.) They bind to mRNA.
c.) They bind to ribosomes.
d.) They bind to RNA polymerase.
Answers
Small interference RNA molecules (siRNA), prevent gene expression by binding to the product of transcription because b.) They bind to mRNA.
What are small interference RNA molecules or siRNA sequences?Small interference RNA molecules or siRNA sequences are short nucleotide sequences of RNA that are able to bind messenger RNA in order to block gene expression by a mechanism called the RNA interference pathway or RNAi.
These small interference RNAs or siRNA sequences make use of the base complementary to function in order to repress the translation and or induce the process of mRNA degradation through their association with macromolecular complexes such as the RISC complex.
Therefore, with this data, we can see that small interference RNA molecules or siRNA sequences act by binding for complementary to mRNA sequences in order to repress the process of translation and or by degrading the mRNA that binds to the target region.
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Region Safety Index
higher is
better
Health Care
Index
higher is
better
Pollution
Index
lower is
better
Climate
Index
higher is
better
A
75.87
75.69
26.24
88.81
B
45.00
70.51
61.24
85.63
с
78.65
84.47
20.09
90.05
D
50.80
72.99
41.79
87.94
Use the quality of life graph above to rank regions from HIGHEST TO LOWEST quality of life
(highest first and lowest last). Sa
OD, C, BA
O A, B, C D
O B, D, C, A
O C, A, D,B
Answers
The ranking of regions from high to low life quality is: O C, A, D,B since these regions show a gradation from highest to lowest in the indices of quality of life.
What is quality of life?The quality of life is a measure how comfortable life is for individuals and how the living environmental conditions of a place which can contribute to either the prolonging or reduction of the lifespan of individuals.
The indexes for measuring quality of life include:
Region Safety Index - higher is betterHealth Care Index - higher is betterPollution Index - lower is betterClimate Index - higher is betterBased on the indices of quality of life and the data given, the ranking of regions from high to low life quality is: O C, A, D,B.
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Q freezing point of water higher with increasing amount of salt
Answers
Answer:
Salt melts ice essentially because adding salt lowers the freezing point of the water. ... Pure water freezes at 32°F (0°C).
Explanation:Water with salt (or any other substance in it) will freeze at some lower temperature.
The Diagram shows structures that form the surface of the trachea.
Which level of organisation is the structure labelled S ?
A. Cell
B. Organ
C. Organ system
D. Tissue
Answers
Structure S is a simple columnar epithelium, which is a type of tissue.
The diagram shows the structures that form the surface of the trachea. The trachea is a tube that carries air from the lungs. The surface of the trachea is lined with a layer of tissue called the epithelium. The epithelium is made up of cells that line the inside of the trachea.
The structure labelled S is a type of epithelium called a simple columnar epithelium. Simple columnar epithelia are made up of cells that are arranged in a single layer. The cells in a simple columnar epithelium are tall and column-shaped.
The simple columnar epithelium in the trachea helps to protect the trachea from infection. The cells in the epithelium produce a mucus that traps dust and other particles. The mucus is then carried away by the cilia, which are tiny hairs that line the trachea.
The other levels of organization in the diagram are organ, organ system, and cell. The trachea is an organ, which is a collection of tissues that work together to perform a specific function. The respiratory system is an organ system, which is a group of organs that work together to perform a common function. Cells are the basic units of life, and they are the building blocks of tissues, organs, and organ systems.
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the sun and soil play extremely important role in the food chain? true or false
Answers
Answer:
True
Explanation:
Nothing can grow or be alive without the sun and if the vegetation doesn't grow what will herbivores eat and if there's no herbivores what will the carnivores eat. The same goes for soil.
Answer:
true
Explanation:
without soil and sunlight, then plants wouldn't be able to grow, then those who eat the plants wouldn't be able to live, then those who eat the animals that eat the plants couldn't live, etc. etc. without soil and sunlight, then the entire food chain would be disrupted. there would be no life on earth.
which characteristics of life do all living beings exhibit?
Answers
Huge Thoughts: Cellular organization, the ability to reproduce, growth and development, energy utilization, homeostasis, response to their environment, and the ability to adapt are all characteristics shared by all living creatures.
All living things will exhibit all of these characteristics. All living entities require energy to carry out life processes, are made up of one or more cells, respond to their surroundings, develop, reproduce, and keep their internal environment steady.
Environmental responses, cells, change and development, reproduction, having complicated chemistry, and homeostasis and energy processing are the seven traits that define a living entity. Non-living objects can exhibit some of the above qualities, but a live organism possesses all of them.
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Cells work together to provide a specific function in , which interact to form an organ.
Answers
Cells work together to provide a specific function in multicellular organisms, which interact to form an organ is called tissue.
How do cells work?Cells group together to carry out a particular function and a group of cells that work together form a tissue.
Organ system is a group of organs that work together to perform functions and circulatory system and digestive system are examples of organ systems.
In multicellular organism, cells form tissues, tissues form organs and then organs form organ systems. The cells differentiate tocarry outspecific functions. Specialization is determined by the location of the cell within the developing embryo. Stem cells are special type of cell that continue to divide and renew themselves for longer periods of time.
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Why did Darwin see savage competition as a creative process?
Answers
Answer: According to Darwin theory of evolution the struggle for existence is considered as major part for competition among living things.
Explanation:
Coexisting species that belong to the same genera compete for same kind of resources for their survival. Some phenotypic variations gives an survival advantage over others. The superior ones dominate the inferior ones and compete for resources. The one who receives the resources like mates, food, shelter, and others the chances of survival also increases considerably.
!!!PLEASE HELP 80 POINTS!!!
There are 10 answers to this one question.
When typing your answers for this question, please put a number in front of your written response to show which question you are answering.
Example: question #1 and #2.
1. RR
2. Rr
Fill in the Punnett Square using the following information:
Mom has the recessive gene for attached earlobes (e).
Dad has the dominant gene (E) for unattached earlobes. Dad is a heterozygous. (Ee).
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
Answers
Answer:
1.e 2.e 3.E 4.e 5.Ee 6.Ee 7.ee 8.ee 9.Ee 10.ee
Explanation:
i did this in school
Answer:
1. e
2. e
3. E
4. e
5. Ee
6. Ee
7. ee
8. ee
9. 1:1
10. 1 unattached earlobe : 1 attached earlobe
Explanation:
Genotype is the alleles, Phenotype is the physical representation
Discuss how humans changed the balance of the park ecosystem.
Answers
Answer:
Humans change the ecosystem in many ways, such as the habitat destruction, the pollution, introduction of invasive species, exploitation, all species. The most common way that humans damage the ecosystem is by destroying the habit id human activities causes disturbance in the polish of the park's ecosystem.
Since the concept of the self is all about how humans view themselves, this concept is interesting to both sociologists and
a)cardiologists.
b)geologists.
c)economists.
d)psychologists.
Answers
Since the concept of the self is all about how humans view themselves, this concept is interesting to both sociologists and psychologists.
What is the self? The self is a multifaceted notion that encompasses different perspectives and theories. The self can be described as a cognitive and effective representation of one's own personality, including cognitive and effective elements and processes.The self is also an entity that serves as a reference point for thought and behavior, which is the source of consciousness and identity. The self is the object of self-knowledge, which is distinct from knowing other objects. As a result, the self is a major source of motivation, self-regulation, and self-control, which are important to human socialization and functioning.
Sociologists: Sociologists who are interested in the self examine the ways in which people interact with others and how these interactions influence a person's self-concept and identity. Sociologists examine the way in which social institutions shape an individual's self-concept, such as the family, religion, education, and mass media.
Psychologists: Psychologists who are interested in the self study how the individual constructs and represents themselves in their internal lives. This is known as self-concept or self-identity. Psychologists are interested in examining how people's experiences, such as social interactions or life events, affect their self-concept or self-identity. In addition, psychologists examine the role that self-concept plays in guiding behavior and making choices.
Answer: D) Psychologists.
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Which choice best relates to and/or describes Wolff's law of bone? Calcium homeostasis of blood B) The amount of blood flow to bone tissue © Influences calcium absorption by the body D The shape of bone is determined by the mechanical stresses placed upo
Answers
The best choice relates to wolff law of bones is The amount of blood flow to bone tissue so the correct option is B.
Wolff's law is developed by the German anatomist and the surgeon Julius Wolff in the 19th century, states that all the bone in a all the healthy animal will be adapt to the loads under which it was placed. If loading on that particular bone increases, the bone will be then remodel itself over time to become stronger to resist that sort of all the loading.
Wolff's Law is the idea that all the natural healthy bones that will adapt and change to adapt to the stress that it is subjected to. For example, if the bones are to be subjected to heavier and the heavier loads, they will naturally reconstruct themselves to the accommodate that weight.
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This chart lists four kinds of polymers and their sources.
A 2-column table titled polymer examples. The first column labeled name of polymer has entries D N A, cellulose, nylon, hair. The second column titled source of polymer has entries inside of cells, plant material, synthetic material, animal material.
What can be known about all four polymers, despite their differences?
They come from living things.
They share ionic carbon bonds.
They are at least 100 monomers long.
They are made of repeating subunits
Answers
Despite all the differences that polymers (DNA, cellulose, nylon and hair) may have, the common statement for them will be: (4)They are made of repeating subunits.
Polymers are the name for larger substances that are made up of a smaller unit that repeats itself again and again. This repeating unit is called a monomer. This monomer can be only of one type of more than one type depending upon the substance.
Nylon is also a polymers made up of repeating unit of diacid chloride and diamines. The characteristics of nylon is the presence of amide group in the polymeric chain.
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Often species on neighboring islands are more closely related to each other than species on different islands. What is this evidence of
Answers
The evidence that species on neighboring islands are more closely related to each other than species on different islands is an example of geographic speciation or the process of speciation due to geographic isolation.
1. Geographic Isolation: When populations of a species become geographically isolated, such as on different islands, they are no longer able to freely exchange genes through gene flow. This isolation can occur due to physical barriers like oceans, mountains, or other geographical features.
2. Genetic Divergence: Over time, the isolated populations experience independent evolutionary processes, leading to genetic divergence. Mutations, genetic drift, and natural selection act upon the isolated populations independently, causing genetic differences to accumulate between them.
3. Restricted Gene Flow: The lack of gene flow between the populations on different islands prevents the sharing of genetic material and limits the exchange of alleles. As a result, the genetic differences between populations increase over generations.
4. Common Ancestry: If species on neighboring islands are more closely related to each other than species on different islands, it suggests that they share a more recent common ancestor. The populations on neighboring islands likely originated from a common ancestral population and experienced relatively recent geographic isolation.
5. Phylogenetic Relationships: By comparing the genetic sequences or traits of different species, scientists can reconstruct phylogenetic relationships and determine the evolutionary relatedness between species. The observation that species on neighboring islands are more closely related provides evidence for geographic speciation and supports the concept of common ancestry.
In summary, the fact that species on neighboring islands are more closely related to each other than species on different islands is evidence of geographic speciation. The geographic isolation of populations on different islands leads to genetic divergence and the formation of distinct species with a shared common ancestry.
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Name the muscle that assist in breathing in frog.
Answers
Answer:
sternohyals and petrohyals muscles
Explanation:
The breathing in frogs is Bucco-pharyngeal respiration, known as mouth respiration.
Sternohyoid muscle is attached to the lower side of the hyoid bone, and petrohyoid muscle is attached to the upper part of the hyoid bone. By oscillaton or lowering and raising these muscles the buccopharyngeal cavity is moving and frogs breath.
The 5' cap protects the mRNA from {{c1::exonucleases}}
Answers
The 5' cap protects the mRNA from exonucleases, which are enzymes that degrade nucleic acids. The 5' cap is an addition to the 5' end of the mRNA strand that occurs during the maturation process.
It consists of a 7-methylguanine cap connected to the 5' end of the mRNA by a 5'-5' triphosphate linkage. This 5' cap is essential for the protection of the mRNA from exonucleases. Exonucleases specifically degrade the 5' end of mRNA molecules because it has no protective cap.
By adding the 5' cap to the mRNA, it prevents exonucleases from accessing and degrading the mRNA. The 5' cap also plays a role in the recognition of the mRNA by ribosomes. As a result, the 5' cap helps to ensure that the mRNA is translated properly, as the ribosomes can identify the cap as a signal to initiate translation.
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complete question is :-
The 5' cap protects the mRNA from {{c1::exonucleases}}. EXPLAIN.
The microscope slide rests on the __________ while being viewed. iris stage condenser base
Answers
The microscope slide rests on the stage while being viewed and is therefore denoted as option B.
What is a Microscope?This refers to a type of instrument which is commonly used in the laboratory to view objects which are very small and are unable to be viewed by the eyes and is done by enlargement to different magnifications through different types of techniques.
The microscope slide rests on the stage while being viewed and there is a a hole in it to permit light to pass through both it and the specimen thereby allowing for accuracy in the observation process.
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What two body systems affect type 1 diabetes?
Answers
HELPPP PLEASEEEE FASTTT
Both parents in the example carry the dominant and the
recessive alleles for a trait (heterozygous). What is the
probability of the offspring expressing the dominant
phenotype?
Answers
Answer:
The answer is 75%
Explanation:
BECAUSE
Whenever there is a capital letter, it means the dominant is there. Whenever the dominant is there, it shows. There are 3/4 (75%) sections that have a capital letter (dominant). Therefore, 75% of those will carry out the dominant
in reconstructing ancient environments, pollen is useful for all of the following reasons except group of answer choices
It preserves well over a long period of time.
Pollen is distinctive of the species of plant that produced it.
Large amounts of pollen are trapped in sediment over time
Answers
Pollen is unique of the species of plant that produced it, it retains well over a long time, and it gets captured in sediment in vast quantities.
Who investigates the prehistoric environment?A fossil's paleoenvironment is the ecology it developed in millions of years ago. One method of determining the approximate age of a rock is by examining one family of creatures and observing how they have changed or evolved over time. Environmental archaeology is an interdisciplinary field of study that examines historical human interactions with the natural world, which includes plants, animals, and landscapes. Paleoclimate research attempts to predict how Earth's climate may change in the future by examining the climate of ancient Earth. In order to comprehend various facets of extinct and extant species, palaeontologists use fossilised remnants.To learn more about ancient environment, refer to:
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The chart lists some of the benefits and risks of traditional gardening methods versus organic gardening methods.
Traditional Gardening
Plants can grow twice as fast as normal.
Plants can be grown in a very small amount of space.
Soil quickly becomes degraded.
Beneficial insects are killed by use of pesticides.
Organic Gardening
No dangerous chemicals are used.
The health of the soil is maintained or improved.
Synthetic fertilizers and pesticides may get inside the vegetables.
Plant diseases take a longer time to cure.
You need to spend more time in the garden using these methods.
Which of the following is a benefit of organic gardening?
A.
Organic gardening allows you to grow plants in half the time.
B.
Organic gardening uses high-tech synthetic fertilizers and pesticides.
C.
Organic gardening results in stable or improved soil health.
D.
Organic gardening requires more time than traditional gardening.
Answers
Agriculture practises used in organic farming are healthful for both crops and customers. Composted organic waste is fed to the crops using this approach, increasing the soil's fertility & process of self - discovery.
The correct answer is :C.
What are the advantages of organic gardening?As no chemical are used in organic farming, nitrogen leaching may be efficiently prevented. It improves the quality of the country's standards, provides healthy, nutrient-rich soil, and produces goods of high quality. Organic gardening can be utilized to generate non-food products like cotton.
What does organic gardening entail?In general, using agricultural chemicals and using synthetic or manufactured fertilizer are two important ways that organic farming varies from process is normally. All synthetic agricultural agents, including weed- and disease-killing insecticides, are not allowed in organic gardening.
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