Answer:
a. By Calculating magnetic reversals.
Explanation:
They determine the age of the ocean floor by examining magnetic fields in the planet Earth.
PLEASE HELP!
Why is nuclear fusion currently not feasible as a source of electrical energy?
Answer:
Fusion is generally impossible because the strongly repellent electrostatic forces between the positively charged nuclei prevent them from colliding and fusing. One of the key reasons we haven't been able to realize the promise of fusion is because its energy requirements are outrageously large. High-energy neutrons are produced during fusion reactions, although they are not radioactive in and of themselves. They do, however, have such a strong influence on the reactor's walls.
In chickens, black and white feathers are co-dominant (both black and white are shown at the same time).
Alleles: Genotypes: BB = Only black feathers
B = Black WW = Only white feathers
W = White BW = Both white and black feathers
Example:
Cross a black and a white chicken.
Describe how urban development can increase flooding.
Answer:The changes in land use associated with urban development affect flooding in many ways. Removing vegetation and soil, grading the land surface, and constructing drainage networks increase runoff to streams from rainfall and snowmelt.
Explanation:
Please somebody help me!
What happens when two haploid gametes join to form a zygote?
the zygote becomes haploid
the zygote immediately becomes an embryo
the zygote immediately becomes a fetus
the zygote becomes diploid
Answer:
forms a diploid zygote.
Explanation:
Fertilization joins two haploid gametes into a diploid zygote, the first cell of a new organism. The zygote enters G1 of the first cell cycle, and the organism begins to grow and develop through mitosis and cell division.
Why do some animals migrate in and out of the coniferous forest?.
Answer: Many animals make their home in coniferous forests, some of which have thick fur to insulate them against frigid winters, while others hibernate to endure the cold and some migrate to warmer temperatures.
Explanation:
What would NOT be considered routine practice during or after conducting uncomplicated aseptic surgical procedures in nonhuman primates
We can confirm that actions that would not be considered routine after said procedure include all of which are not directed towards the care and recovery of the animal.
What would help the care and recovery of the animal?Routine practices include caring for the animal as it recovers from the effects of the anesthesia as well as administering fluids to keep it hydrated. Even pain control through the use of pharmaceuticals is considered normal practice, anything that would fall outside of these actions may be considered abnormal practice.
Therefore, we can confirm that actions that would not be considered routine after said procedure include all of which are not directed towards the care and recovery of the animal.
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Melanin is a protein that causes color in fur.
True
False
Answer:
False
Explanation:
It is false because melanin is a GENE that causes color in fur, skin, hair etc..
I hope it helps! Have a great day!
Pan~
Answer:
False
Explanation:
Melanin is a gene not a protein, although melanin does cause the color in animal’s fur.
I hope it helps! Have a great day!
Anygays-
when a muscle cell demands energy to contract,what happens to ATP
Answer:
he ATP is used to return the mysoin head to its starting position. The ATP is hydrolyzed to Pi + ADP. The head with the ADP and Pi attaches itself to the actin filament. When ADP and Pi release the mysoin head pulls back.
Explanation:
Answer:
The ATP is used to return the mysoin head to its starting position. The ATP is hydrolyzed to Pi + ADP. The head with the ADP and Pi attaches itself to the actin filament. When ADP and Pi release the mysoin head pulls backback
Explanation:
Which one below will end up being expressed in the protein?
a) Intron
b) Exon
c) Transcription factor
d) Terminator
e) Promoter
Exons are the DNA fragments that get to be transcripted and translated into proteins. Option b) Exons end up being expressed in the protein.
What are introns and exons?Even though more than 70% of the DNA is related to genes, just a part of the genes is translated to proteins. Most genes have DNA segments that are not transcripted or translated intercalated with segments that are translated.
Introns are non-encoding sequences that produce interruptions in a eukaryotic gene. Exons are the encoding sequences. Exons are the nucleotidic sequences that do codify proteins.Most of the eukaryotic, multicellular genes contain introns in their sequences, intercalated with exons.
Introns are transcripted to mRNA molecules and get excised before translation by a specific mechanism. This occurs before the mRNA leaves the nucleus. The introns are excised and the exons must splice to form a unique molecule. This process is known as splicing.
Exonic sequences are the fragments that are transcripted and translated into proteins.
The correct option is b). Exons end up being expressed in the protein
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What would be the effect of a mutation in the laci gene that prevented the repressor from binding to lactose?
Answer:
The lac Z , Y , and A genes would not be expressed . 8 . What is the role of glucose in catabolite repression ? It decreases the levels of c AMP in the cell , repressing transcription from the lac operon
Explanation:
In a fish, blood circulates through __________, whereas in a mammal, it circulates through __________.
Answer:
fish: blood flows unidirectionally from the two-chambered heart through the gills and then the rest of the body.
mammal: Blood is pumped from veins of the systemic circuit into the right atrium of the heart, then into the right ventricle. Blood then enters the pulmonary circuit, and is oxygenated by the lungs. From the pulmonary circuit, blood re-enters the heart through the left atrium.
Which process of a neuron is specialized for rapid conduction of nerve signals to structures relatively far away from the neuron cell body?.
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I hope it will help you.When a wave reaches a coastline, it releases a burst of energy that generates a current, which runs parallel to the shoreline and this type of current is called a longshore current as you can see here. Review the movement of the longshore current. What is the result of this sheet of water movi n on and off the shore?
Answer:
if it is longshore
it leaves the waste materials in the water on the lanf
do butterflies cause cancer
Answer:
If you mean the Butterfly Syndrom then yes, this Syndrome does cause cancer in early life.
Question 3
Yeast can perform both anaerobic and aerobic respiration. Does the experiment demonstrate this fact? Explain your reasoning.
Answer:
Yeast can carry out both anaerobic respiration (fermentation) and aerobic respiration.
Explanation:
Both produce carbon dioxide, fermentation produces a much lower amount of ATP. Fermentation produces ethanol.
Answer: Yes.
Explanation:
it do demonstrate the fact because it has 2 different ways of testing whether or not oxygen effects the production of foam in the glasses.
Female gametophytes in angiosperms are hidden, and protected. Where are they found, and what are they also called?.
Answer:
They are usually found in the center and they are called embyro sacs.
Explanation:
12.
A lizard species mostly eats fruit from one
particular type of tree. If a virus kills most of
these trees, which individual lizards will most
likely survive?
A.
lizards that can climb higher in the fruit trees
B.
lizards that have darker coloration
C.
lizards that can find other types of food
D.
lizards that produce more offspring
When a person becomes infected with the influenza virus, cell-mediated immunity is activated. Why would the influenza virus initiate cell-mediated immunity? Describe the process of cell-mediated immunity as it would attack the influenza virus.
Cell-mediated immunity involves the activation of different specialized cells present in the immune system.
What is cell-mediated immunity?Cell-mediated immunity is a type of adaptive immune response that involves the activation of different specialized cells present in the immune system.
These cells include, among others, phagocytes (macrophages), cytotoxic T-lymphocytes, etc.
Cell-mediated immunity also involves the release of chemical messengers such as cytokines that activate immune responses (e.g. inflammation).
These immune responses act in a concerted mode to recognize and attack antigens present in the flu virus.
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Should the amendment , which allows for free speech , include all types of speech ? What about bad language racial slurs , and other words that hurt other people's feelings?
Explanation:
No because a speech has to be a meaningful speech
Most of our energy waste in north america results from.
Answer:
. Most of our energy waste in North America results from
A. A failure to turn off lights
B. Technological inefficiency
C. The fact that more efficient energy conversion is not possible
D. Overwhelming public ignorance of conservation issues
E. The fact that energy conservation techniques are quite expensive
B. Technological inefficiency
need help ASAPPP
original DNA sequence:TAC,CCA,TAG, CAC ,GTT,ACA, ACG you will transcribe this DNA strand in mRNA,then you will translate the amino acid sequence that the mRNA codes for.
Based on the DNA sequence: TAC,CCA,TAG, CAC ,GTT,ACA, ACG
The mRNA produced by transcription is: AUG, GGU, AUC, GUG, CAA, UGU, UGC. The amino acid sequence produced by translation is: Met, Gly, Isoleucine, Val, Glu, Cys, Cys.What is transcription and translation in genetics?Transcription is the process by which RNA molecules are made from DNA molecules.
The RNA molecules produced are known as messenger RNA or mRNA which are then used to make proteins.
Translation is the process by mRNA molecules are used to make proteins from amino acids at the ribosomes.
The nucleotides in the mRNA are read in triplets known as codons.
For the given DNA sequence: TAC,CCA,TAG, CAC ,GTT,ACA, ACG
The mRNA produced is: AUG, GGU, AUC, GUG, CAA, UGU, UGC.
The amino acid sequence is: Met, Gly, Isoleucine, Val, Glu, Cys, Cys.
Therefore, proteins are made from DNA through the process of transcription and translation.
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What is the purpose of a checkpoint in the cell cycle.
Explain the places occupied by grass, a rabbit, and a wolf in an energy pyramid.
Answer:
Grass is on the bottom of the energy pyramid because it needs the least amount of energy. A rabbit is in the primary consumers level, and a wolf is a secondary level consumer.
Explanation:
What is the definition of energy?
heat from the sun
the ability to do work
it can be anything and everywhere
food and water
Answer:
The definition of energy is the ability to do work.
One way to think abnout is whenever you have a lto of eneergy you can do a lot of work, but with little energy you can't do much work.
Answer:
thats ability to do any type of work
An Emperor Penguin’s heart rate can slow significantly during a dive. This enables it to conserve oxygen underwater and spend more time finding food. This type of adaptation is known as:
A
Physiological adaptation
B
Habituation
C
Artificial selection
D
Behavioral adaptation
In oxidation,
is needed to create a chemical reaction.
nitrogen
carbon dioxide
oxygen
Media convergence is the result of the integration of the different media technologies. please select the best answer from the choices provided t f
Media coverage is used for different blogs, feeds, video content etc. It is the result of the different media technologies.
What are the types of media coverage?Like other works, media coverage is also require very hard work and risk accepting skills. Media coverage can have 3 types. They are:
Owned coverage: this is the coverage of one's own media.Paid coverage: this type of coverage include promotional events.Earned coverage: it includes unpaid coverage from other source.Thus, the given statement is true.
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Answer: true
Explanation:
What is the value of transitional epithelium in the urinary system?.
Answer:
Unlike the mucosa of other hollow organs, the urinary bladder is lined with transitional epithelial tissue that is able to stretch significantly to accommodate large volumes of urine. The transitional epithelium also provides protection to the underlying tissues from acidic or alkaline urine.
Explanation:
A chicken has 39 pairs of chromosomes and a human has 23 pairs of chromosomes. The four nitrogen bases (adenine, thymine, guanine & cytosine) are the same for both the chicken and human. What makes chicken DNA different from human DNA?