Answer:
Light of different wavelengths look like different colors to humans. True
Answer:
True
Explanation:
Light of different wavelengths look like different colors to humans.
hope it is helpful to you
PLZ help me I’m too slow
What is the probability of having fish with red scales shown on a table
Put these in order NO LINKS NO LINKS
Drag the structures to the appropriate boxes in order that oxygen would travel from the outside of your body to the blood stream
Choices: bronchi, nasal cavity, capillaries, trachea, pharynx, aveoli, bronchioles
IF YOU DON'T KNOW THE ANSWER, DON'T ANSWER THIS QUESTION
Answer:
Nasal Caviry
Trachea
Pharynx
Bronchi
Bronchioles
Aveoli
Capillaries
Which of the following defines scion?
a. the trunk portion of a plant onto which a cutting is grafted
b. the portion of a plant remaining after extensive pruning
c. the hybrid offspring of two differing varieties of a species
d. the cutting that is grafted onto the trunk portion of a plant
Answer:
A
Explanation:
It is a plant part, not the cutting.
Mutated codons code for what in silent mutations?
Answer:
Code for the same amino acid as the original codon
Explanation:
Mutation, which is any alteration in the nucleotide sequence of a gene, can occur when there is a replacement of base nucleotides. This is called SUBSTITUTION MUTATION. Substitution mutation can either lead to missense, nonsense or silent mutations.
As stated in this question, SILENT mutation is the one in which there is no change in the amino acid sequence after translation of the mutated mRNA. In other words, the mutation leads to an alteration of codon but the MUTATED CODONS CODE FOR THE SAME AMINO ACID as the original codon, hence, no effect on the protein produced or individual, in general.
how do tortoises differ among the galapagos islands? what causes these differences?
Answer:
How did tortoises and birds differ among the islands of the Galapagos? The tortoises on the Galapagos Islands all had different shaped shells; therefore they were different species of the same category of tortoises. ... Darwin found several types of small, ordinary brown birds.
Hope it helps :D
Explanation:
Discuss 3 different types of mutations that can happen
Answer:
Explanation:
Un cambio en la secuencia de bases en el ADN o ARN se conoce como mutación . ¿La palabra mutación te hace pensar en ciencia ficción y monstruos con ojos de insecto? Piensa de nuevo. Todos tienen mutaciones. De hecho, la mayoría de las personas tienen decenas o hasta cientos de mutaciones en su ADN. Las mutaciones son esenciales para que ocurra la evolución. Son la fuente principal de todo el material genético nuevo -nuevos alelos - en una especie. Aunque la mayoría de las mutaciones no tienen efectos en los organismos en que ocurren, algunas mutaciones son beneficiosas. Incluso las mutaciones dañinas rara vez causan cambios drásticos en los organismos.
I NEED HELP AS QUICK AS POSSIBLE!!!
Last month, Sarah documented how her city suffered from acid rain. What type of pollution should the people in Sarah’s city try to control?
Answer: I need more information to answer.
Explanation:
Use the table to answer the following question.
Gravity and inertia are the two forces that keep Earth in its orbit as it travels around the Sun. What would happen if the force of inertia disappeared?
A.
Earth would break apart.
B.
Earth would be pulled into the sun.
C.
Earth would leave the solar system.
D.
There would be no changes in Earth's orbital path
Answer:
D.
Explanation:
if the force of inertia disappeared there would be no changes in earth's orbital path.
the reasons is that earth would stop moving as soon as there was no longer any force being applied
When an evolutionary biologist designs an experiment to test a hypothesis, which term is used to describe the variable that the scientist changes among his/her groups of study organisms.
Explanation:
Controlled experiment =An experiment in which only one variable is changed
Independent variable= The variable that is deliberately changed in an experiment
Dependent variable =The variable this is observed and changes in response to the independent variable
The range of waves that includes radio waves, microwaves, infrared, visible light, ultraviolet light, X-rays and gamma rays is called-
Answer:
The range of waves that includes radio waves, microwaves, infrared, visible light, ultraviolet light, X-rays and gamma rays is called
electromagnetic energy/spectrum.
3. Synthesize in your own words, explain why scientists believe that threats to amphibians present a warning about a number of environmental threats to Earth's biodiversity Refer to the Case Study.
Explanation:
Scientists give three reasons. First, amphibians are sensitive biological indicators of changes in environmental conditions such as habitat loss, air and water pollution, ultraviolet (UV) radiation, and climate change.Amphibians are sensitive biological indicators of environmental circumstances such as habitat loss, pollution of the air and water, ultraviolet (UV) radiation, and temperature change.
What is biodiversity?The variety and variability of life on Earth is referred to as biodiversity or biological diversity. A measure of variation at the genetic, species, and ecosystem levels is called biodiversity.
Biodiversity refers to the variety of all the diverse species of organisms that dwell on our planet, including the plants, animals, insects, and microorganisms.
Each of these things exists in a delicate balance and coexists with the others in ecosystems that nourish and sustain life on earth.
Amphibians are sensitive biological markers of changes in environmental conditions like temperature, UV radiation, habitat loss, and air and water pollution.
Thus, scientists believe that threats to amphibians present a warning about a number of environmental threats to Earth's biodiversity.
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What are the seven taxon characteristics of a human again?
K
ד ר ת
Answer:
I believe they are Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species.
Explanation:
3. What is the definition of recessive and dominant?
4. What is the difference between genotype and phenotype? Write a 5 sentence
paragraph describing the difference between the two.
Answer:
Recessive: relating to or denoting heritable characteristics controlled by genes which are expressed in offspring only when inherited from both parents.
Dominant: Refers to a trait that appears more frequently than another trait, resulting from interactions between gene alleles.
Explanation:
Genotype and phenotype differences
Genotype Phenotype
The hereditary information of the organism in the form of gene in the DNA and remains the same throughout the life. The characters of an organism which are visible are known as phenotypes.
Same genotype produces same phenotype. Same phenotype may or may not belong to same genotype.
Present inside the body as genetic material. Expression of genes as the external appearence.
The genotype is inherited from the parent to the offspring. The phenotype is not inherited from the parent.
It can be determined by scientific methods such as the polymerase chain reaction. It can be determined by observing the organism.
It is affected by genes. It is affected by genotype and environmental conditions.
For eg., Blood group, eye colour, height, genetic diseases. For eg., Weight, physique, beak of birds
The diving bell spider stores air underwater in a net of silk explain how this could be more advantageous than having gills
Answer:
Explanation:
Using its web as a gill, the diving-bell spider can live underwater with only occasional visits to the surface. The arachnid (Argyroneta aquatica) breathes air from a bubble that it grabs from the surface of water using fine hairs on its abdomen.
There is a species of frog on an island that puzzles scientists. The proportion of frogs with no stripes is greater than the proportion of frogs with
stripes. This is puzzling because the unstriped trait is recessive (s), and the striped patterns are due to dominant alleles (S). Also, natural selection
seems to support the striped trait.
How do genetic factors most likely account for the proportion of traits in the frog population?
A. Most of striped frogs and unstriped frogs have the genotype ss.
OB. Most of striped frogs have the genotype SS and the unstriped frogs have the genotype ss.
C. Most of striped frogs have the genotype SS and the unstriped frogs have the genotype Ss.
OD. Most of striped frogs have the genotype Ss and the unstriped frogs have the genotype ss.
Hi
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Should ever come back...Should ever come back....
What does every living thing have to have? *
Chloroplast
Nucleus
DNA
Answer:
DNA
Explanation:
Answer:
Explanation:
Los cloroplastos son los orgánulos celulares que en los organismos eucariotas fotosintetizadores se van ocupando de la fotosíntesis. Están limitados por una envoltura formada por las dos membranas concéntricas y contienen muchas vesículas, los tilacoides, donde se encuentran organizados los pigmentos y demás moléculas que convierten la energía lumínica en energía química, como la clorofila.
El término cloroplastos sirve alternativamente para designar a cualquier plasto dedicado a la fotosíntesis, o específicamente a los plastos verdes propios de las algas verdes y las plantas. Aunque el reciente descubrimiento adiciona a más individuos en la lista, como lo es en el caso de Elysia chlorotica, que al digerir al alga Vaucheria litorea, adquiere los cloroplastos a sus tejidos, y gracias a esto, puede realizar la fotosíntesis.
The principal enzyme involved in DNA replication is called _____________. The enzyme joins ________________ to synthesize a new _______________ strand of DNA. DNA replication is called ______________ because each new DNA molecule is made up of one original and one new strand.
complementary
DNA polymerase
nucleotides
semiconservative
Answer:
The principal enzyme involved in DNA replication is called _DNA polymerase_. The enzyme joins _nucleotides_ to synthesize a new __complementary_ strand of DNA. DNA replication is called __semiconservative__ because each new DNA molecule is made up of one original and one new strand.
Explanation:
DNA replication is the process through which DNI molecule duplicates. This event takes place during the S stage of the interphase. So when the cell divides during mitosis or meiosis, each cell will get a complete set of chromosomes.
DNI replication is semi-conservative because each new molecule carries an original DNI strand and a new one. The fact that the new molecule is composed of an original strand makes it semi-conservative. The old existing strands are used to synthesize the new complementary strand.
The origin of the replication requires helicase enzymes to break hydrogen bonds and separate the two original strands. The topoisomerase enzyme is necessary to release tension. Other proteins are also needed to join the strains and keep them separated. Once the molecule is opened, there is a region named replication forks. DNA polymerase makes the new nucleotides enter into the fork and pairs them with the corresponding nucleotide of the original strand. Adenine pairs timine, and cytosine pairs guanine.
DNA strands are antiparallel, and replication occurs only in 5´-3´direction. So one of the strands will replicate continuously, while the other strain will be formed by short fragments known as Okazaki fragments.
Primers are needed to make the DNA polymerase work. Primers are small units of RNA and are placed at the beginning of each new fragment.
Explain why it is important to prevent the extinction of species?
Answer:
Animals and plants depend upon each other, so the loss of one species affects others within that complex web of relationships.
Explanation:
Healthy ecosystems depend on plant and animal species as their foundations. When a species becomes endangered, it is a sign that the ecosystem is slowly falling apart.
I hope this helps :3
Answer:
Why is it so critical that we protect species? 1. Its ecological significance. Plant and animal species are the cornerstones of healthy ecosystems. When a species becomes endangered, it indicates that the ecosystem is deteriorating.
Explanation:
True or False: An Inoculation Loop is a tool used when transferring/culturing bacteria. *
Answer:
Yes this fact is true
Explanation:
I hope this helps
True or false: Yeast is a bacteria cell.
True or False: An Inoculation Loop is a tool used when transferring/culturing bacteria.
True or False: A BSC focuses on limiting the chance of a liquid contaminating a worker.
false
Explanation:
its a living organism
What makes a species successful in an ecosystem?
Answer:
Beside the intensive loss of forest cover [2], fragmentation of the pristine remnants further affects species [3] and limits their ability to move into adequate areas. Thus the ability to cope with altered landscapes is crucial for the persistence of a species, especially in the face of climate change.
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Answer:
Yes; When the cell grows larger,, it needs more cell membraine to prepair for mitosis. Without this process, the cell would rupture.
Yes; The cell would not be able to grow if the surface area stayed the same.
Hope this helps ^v^
Water is carried though the trunk in the sapwood.
True
False
Answer:
true
Explanation:
17.
Why is it important to conserve the biodiversity of Earth?
A. to decrease the amount of global predator populations
B. to decrease the stability of major global ocean currents
C. to increase the stability of ecosystems during environmental
changes
D. to increase the amount of nonrenewable resources located in the
lithosphere
Black panthers are found in both africa and america. what observation would most likely cause scientists to classify these panthers as different species?
A. the american black panther does not eat the same food as the african black panther
B. the american black panther population is smaller than the african black panther population
C. the american black panther is not able to produce fertile offspring with the african black panther
d. the american black panther lives in a different habitat
Which of the following examples is NOT classified as composite volcano?
A. Mt. Fuji B. Mt. Rainier C. Mt. Mayon D. Mt. Paricutin
Answer:
C. Mt. Maton
Explanation:
not sure but hope it helps
Mt. Mayon examples is NOT classified as composite volcano.
What is Composite volcano?Cone-shaped composite volcanoes, also known as stratovolcanoes, are formed from numerous layers of lava, pumice, ash, and tephra. Composite volcanoes typically generate tall peaks rather than rounded cones because they are composed of layers of viscous material rather than fluid lava.
Calderas are occasionally created when the peak crater collapses. The most destructive volcanic eruptions in recorded history have been caused by composite volcanoes.
Apart from Earth, Mars is the only known location in the solar system with stratovolcanoes.
Therefore, Mt. Mayon examples is NOT classified as composite volcano.
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New forms of drug-resistant bacteria can evolve quickly because
A
when a drug kills most of the bacteria, the ones left to breed are those that have a natural resistance to the drug.
B
when scientists genetically engineer bacteria they use natural selection.
C
scientists use extinction to selectively breed bacteria.
D
a drug causes mutations in the bacteria, leaving only mutated bacteria left to breed.
Answer:
A
Explanation:
please help!!!!!!!!!!!
Answer:
Typically, the nucleus of a cancer cell is larger and darker than that of a normal cell and its size can vary greatly. Another feature of the nucleus of a cancer cell is that after being stained with certain dyes, it looks darker when seen under a microscope
Explanation:
In contrast to normal cells, cancer cells don't stop growing and dividing, this uncontrolled cell growth results in the formation of a tumor. Cancer cells have more genetic changes compared to normal cells, however not all changes cause cancer, they may be a result of it.