Answers
Answer:
The first step of protein synthesis is called Transcription. It occurs in the nucleus. During transcription, mRNA transcribes (copies) DNA. DNA is "unzipped" and the mRNA strand copies a strand of DNA.
Explanation:
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Related Questions
5. Divide the following signed numbers:
please help will give extra
a.
-8
-2
b.
+9
-1
c.
-12
-48
Answers
Answer:
-8-2=-10
+9-1=8
-12-48=-60
Explanation:
Bacteria, like most forms of life use ___ to reduce the activation energy of metabolic reactions.
select all correct answers
Bacteria, like most forms of life use ___ to reduce the activation energy of metabolic reactions.
select all correct answers
catalysts
resonance structures
entropy
photons
enzymes
Answers
Answer:
Catalysts, enzymes
Explanation:
Catalysts are known for reducing the activation energy of a reaction thus increasing the reaction rate.
Enzymes are a type of catalyst.
Describe way in which plants are adapted to swed dispersal by animals give an example
Answers
Some seeds feature barbs or hooks that cling to an animal's skin, fur, or feathers. Birds can carry away the sticky seeds of plants like pittosporum.
How do plants adapt to animal seed dispersal?Seeds from plants that rely on animals for distribution are made to fit either within or outside of the animal. Burr- or hook-shaped seeds can cling to an animal's fur. Plants give seeds that are carried internally an enticing fruit pulp reward in exchange for the journey.
What kind of animal dispersal are examples?Mangoes, guavas, breadfruit, carob, and several fig species are some examples. Aardvarks and the desert melon (Cucumis humifructus) share a symbiotic connection in South Africa, where the mammals consume the fruit for food.
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what is cardiology?...
Answers
Answer: A branch of medicine that deals with the abnormalities of the heart and other parts connecting to the heart.
Explanation: To explain it further, cardiology specializes in treating and diagnosing diseases in the blood vessels, circulatory system, and of course, the heart.
Hope this helps! :)
How would bigger lysosomes help a white blood cell help the body?
Answers
Answer:
use their hydrolytic enzymes to destroy pathogens (disease-causing organisms) that might enter the cell.
How does antibodies act on the invading pathogen
Answers
2. They produce antigens to kill or weaken them
3. They digest them to kill them
The data shown above is a life table for the female Belding ground squirrel in the Sierra Nevada
Mountains.
Calculate the mortality rate (per thousand) between the ages of 1-2.
You must show your work in order to receive credit for your answer!
Answers
Answer:
377
Explanation:
you plus 252and 125 together and you will get 377
Sort these letters to compare and contrast terms population, community and ecosystem. !!DUE IN AN HOUR PLS HELP AND QUICKLY!!
Answers
Answer:
Hey, just wanted to tell what those terms means:
Population - Group of one type of organism (ex. 15 bees)
Community - Group of multiple types of organism (15 bees, 10 birds, 11 ants)
Ecosystem - Community and abiotic thing interacting (sun and animals), interacting means changing of energy from predator to prey because things get eaten
Explanation:
One out of every hundred people of the Hopi Indian tribe inherits the autosomal recessive disease Glucose-6-phosphate deficiency. How many people in the population of six million are carriers of this disease?
Answers
Following the Hardy-Weinberg equilibrium theory, in a population of six million people, 1,080,000 individuals are healthy and carriers (heterozygous) for the trait.
What is the Hardy Weinberg equilibrium?The Hardy-Weinberg equilibrium is a theory that states that populations in equilibrium get the same allelic and genotypic frequencies generation after generation.
These populations do not evolve. No evolutive forces are acting on them.
Assuming a diallelic gene, frequencies are
Allelic frequencies
p is the dominant allele frequencyq is the recessive allele frequencyGenotypic frequencies
p² is the frequency of the homozygous dominant individualsq² is the frequency of the homozygous recessive individuals2pq is the frequency of heterozygous individuals
In a population in equilibrium,
p + q = 1p² + 2pq + q² = 1We will consider these equations to solve the problem.
Glucose-6-phosphate deficiency is an autosomal recessive disease.One out of every hundred people of the affection. So this is the homozygous recessive genotypic frequency.Because we have the frequency of the homozygous recessive genotype, we can get the allelic frequency.
q² = 1/100 = 0.01q = √q² = √0.01 = 0.1Now, by clearing the equation p + q = 1, we can get the dominant allele frequency. And then, the frequency of the homozygous dominant genotype.
p = 1 - 0.1 = 0.9p² = 0.9² = 0.81Finally, we can get the frequency of the heterozygous genotype
2pq = 2 * 0.9 * 0.1 = 0.18The number of individuals with each phenotype in the population is,
0.81 * 6,000,000 = 4,860,000 individuals are healthy not carrier0.18 * 6,000,000 = 1,080,000 individuals are healthy carriers. 0.01 * 6,000,000 = 60,000 individuals have the disease.In a population of six million people, 1,080,000 individuals are healthy and carriers (heterozygous) for the trait.
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select 1 factor that most likely reflects your life as a senior high student
Answers
Answer:
The factors which reflects the life of your senoir in high school are tobacco edictoin
Charles Darwin Background: who was he What did he do what voyage is he famous for taking.
Answers
Answer and explanation
Who was he?
-Charles Darwin was a naturalist, who came up with a scientific theory of evolution by natural selection.
What did he do?
-He suggested that animals and humans share the common ancestor. From his theories, he gave a publication called On the Origin of Species, a book that explained how natural selection came about. Darwin's analysis of the plants and animals he gathered led him to question how species form and change over time. This work convinced him of the insight that he is most famous for—natural selection.
What voyage is he famous for taking?
-Charles Darwin took the Beagle voyage.
what’s a characteristic of precipitation
Answers
Answer:
Precipitation is liquid or solid water falling from clouds to the Earth's surface or formed on different bodies as a result of atmospheric water vapor condensation. Precipitation can be liquid, solid, or mixed. Liquid precipitation includes rain and drizzle.
10. According to Bohr's model of the atom, electrons behave like....
A. Waves on a vibrating string
B.Planets orbiting the
C.sun light energy in a vacuum
Answers
B.Planets orbiting hiiiiii
What is the allele number for the following sequence? (3pts)
GTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCA
Answers
Answer:
what I don't understand what is the Ctcagt
Which of these statements best compares a smooth muscle cell and a skin cell?
A. A smooth muscle cell and a skin cell express their genes differently.
B. A smooth muscle cell is differentiated and a skin cell is undifferentiated.
C. A smooth muscle cell comes from a different zygote than a skin cell does.
D. A smooth muscle cell has half as many chromosomes as a skin cell does.
Answers
Answer:
a
Explanation:
URGENT
A steroid hormone approaches its target cell. Which will happen first?
The hormone will enter the nucleus
The hormone will combine with proteins to form lipoproteins
The hormone and its receptor will interact with the DNA
The hormone and its receptor will enter the cell’s nucleus
Answers
A steroid hormone approaches its target cell, therefore the hormone will enter the nucleus and is what will happen first which is therefore denoted as option A.
What is a Hormone?This is referred to as a chemical messenger which is released directly into the bloodstream and is responsible for the control of certain metabolic reactions occurring in the cell and an example is steroid hormone such as androgens.
In a situation whereby a steroid hormone approaches its target cell, it first passes through the plasma membrane before it then becomes adhered to the receptors which are present in the nucleus or cytoplasm.
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Describe the relationship between effusivity of eruption and the composition of the
melt in terms of Felsic or Mafic. Be as descriptive as possible here on the relationship
also of what circumstances make a melt Felsic or Mafic. Which tectonic settings
correspond to which levels of effusivity.
Answers
Explanation:
Effusivity is a measure of how easily lava can flow, and it is determined by several factors, including the viscosity of the melt, the gas content, and the temperature. The composition of the melt is also an important factor that influences effusivity.
Mafic melts have a low viscosity due to their low silica content, which allows them to flow more easily and have higher effusivity. Mafic melts are typically composed of iron- and magnesium-rich minerals such as olivine and pyroxene and have a darker color. They are commonly associated with oceanic crust and hotspots.
Felsic melts, on the other hand, have a high viscosity due to their high silica content, which makes them more viscous and less able to flow. Felsic melts are typically composed of minerals such as quartz, feldspar, and mica, and have a lighter color. They are commonly associated with continental crust and volcanic arcs.
The tectonic setting also plays a role in determining the effusivity of an eruption. In general, volcanic eruptions at divergent plate boundaries, such as mid-ocean ridges, tend to be more effusive and mafic in composition, while eruptions at convergent plate boundaries, such as volcanic arcs, tend to be more explosive and felsic in composition. However, there can be variations and exceptions to this general pattern depending on the specific geological setting.
Overall, the relationship between the effusivity of an eruption and the composition of the melt is that mafic melts, which have a low silica content, tend to be more effusive, while felsic melts, which have a high silica content, tend to be less effusive and more explosive.
What is a chromosome?
Answers
Chromosomes are structures formed by a DNA molecule associated with protein molecules. In prokaryotic cells, we observe a circular chromosome; in eukaryotes, chromosomes are linear and located inside the nucleus.
photosynthesis is a process that helps cycle matter through the environment
Answers
Photosynthesis is a process that helps cycle matter through the environment, the statement is correct because in plants oxygen is released and carbon dioxide is absorbed.
More on PhotosynthesisThe process through which green plants and certain other organisms convert light energy into chemical energy is known as photosynthesis.
Light energy is collected and utilized by green plants during photosynthesis to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic molecules.
Photosynthesis produces oxygen and glucose by combining sunlight, carbon dioxide, and water.
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The degree to which chromatin is compacted greatly affects its accessability for ____________ , and thus, gene expression.
Answers
The degree to which chromatin is compacted greatly affects its accessibility for transcription, and thus, gene expression.
What is Transcription?This is the process which involves copying a segment of DNA into RNA in organisms.
When chromatin is condensed, DNA becomes less accessible for transcription factors and vice versa which was why it was chosen as the most appropriate choice.
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Which organisms can reproduce using the process of fragmentation
Answers
Fragmentation is a form of asexual reproduction and is seen in annelids, fungi, cyanobacteria, sponges, and flatworms.
In Fragmentation, an organism divides itself into a number of fragments. It occurs when an organism completely breaks down independently irrespective of the other parts. Each one of these fragments matures into fully grown adults that are clones of the original organism.
Asexual reproduction usually involves the participation of a single parent alone can produce new offspring. The newly produced individual is genetically identical to one another and its parent. Both multicellular and unicellular organisms divide by fragmentation which is asexual reproduction.
Fragmentation is the most common method of reproduction in lower invertebrates. It is seen in many organisms including filamentous cyanobacteria, algae, lichens, molds, many plants, and animals such as flatworms, annelid worms, sponges, and sea stars.
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The organisms that can reproduce by fragmentation are Option d Sponges and Sea anemones.
Fragmentation is a form of asexual reproduction in which an organism breaks into two or more fragments, and each fragment develops into a new individual. Both sponges and sea anemones are examples of organisms that exhibit this mode of reproduction.
Sponges are simple multicellular animals that lack true tissues and organs. They possess a porous body structure, and when a sponge is fragmented, each fragment has the potential to develop into a new sponge through regeneration. These fragments contain specialized cells called archaeocytes that can differentiate into various cell types required for the formation of a new sponge.
Sea anemones, on the other hand, are marine animals belonging to the phylum Cnidaria. They have a cylindrical body with tentacles surrounding their mouth. When a sea anemone is fragmented, each piece can regenerate into a complete individual. The process involves the differentiation of cells within the fragments, leading to the development of new tentacles, body parts, and eventually a mature sea anemone.
Both sponges and sea anemones have remarkable regenerative abilities, allowing them to reproduce through fragmentation. This form of asexual reproduction enables them to colonize new areas, expand their population, and adapt to changing environmental conditions. Therefore the correct option is D
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The Question was Incomplete, Find the full content below :
The organisms which can reproduce by fragmentation are:
(a) Corals and Sponges
(b) Corals and Spirogyra
(c) Sea anemone and Spirogyra
(d) Sponges and Sea anemones.
what is short term memory
Answers
Solution:
The solution is:
Short-term memory, or primary memory, is the ability to actively hold a small amount of information in the mind so that this information is immediately available for a short period of time. The duration of this type of memory is seconds and its capacity is to memorize 7 ± 2 elements.
On the other hand, it is noteworthy that the prefrontal cortex handles spatial representation and participates in short-term memory.
The causes of short-term memory loss are pathologies such as:
Aneurysm.
Stroke.
Encephalitis.
Hypoxia.
Epilepsy.
Initial states of neurodegenerative diseases (for example, Alzheimer's).
Damage to the diencephalon.
Korsakoff's syndrome.
would the amount of cytosine and guanine be equal to each other in an RNA molecule?
Answers
Answer:
No
In RNA their arn't any base pairs but instead there are simply one base pairs, so any cytosine and guanine molecule are not related to each other at all, and thereby they don't have to be the same amounts.
Explain how genetic information, along with an understanding of the process of descent with modification, enables scientists to reconstruct phylogenies that extend hundreds of millions of years back in time.
Answers
By comparing the DNA sequences of different species, scientists can identify shared ancestry and determine how closely related different species are. This enables them to make predictions about the evolutionary relationships between different species and to reconstruct phylogenies that extend back in time, providing insights into the evolutionary history of life on Earth. Molecular techniques, such as DNA sequencing, are particularly useful for this purpose because DNA is a stable, heritable molecule that is passed from one generation to the next.
Which was present in the unknown? starch lipids nucleic acids proteins
Answers
To test for the presence of starch, you can use iodine solution, which turns blue-black in the presence of starch. Lipids can be identified using a Sudan III or Sudan IV test, where lipids will appear as red or orange-stained spots.
Nucleic acids can be detected through tests like the diphenylamine test or the biuret test.
The diphenylamine test produces a blue color in the presence of DNA, while the biuret test results in a purple color in the presence of RNA.
Proteins can also be identified using the biuret test, as proteins will cause the solution to turn purple.
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You are working on research involving competition between animals. Which of the following resources do you not need to measure?
A. Light
B. Space
C. Water
D. Food
Answers
Have a nice day :)
impotence is the inability of the blank to become blank
Answers
Answer:
Erectile dysfunction (ED), also known as impotence, is the inability to achieve or sustain a hard enough erection for satisfactory completion of sexual activity.
Explanation:
which measurement is likely the least accurate? Explain.
What observations and/or patterns do you see in the data?
Answers
Based on the information, we can infer that the measurement that could be the least probable is caudal peduncie depth strandard error. Also, the trend is for lake values to be higher than river values.
What difference do we see in the values in the table?To identify the values we must analyze the table and identify they are not the trends. In this case we can infer that the tendency is for the values of the lake to be higher than the values of the river because all the values of the lake are higher than those of the river.
On the other hand, we can infer that the value that could be the least successful is the peduncie depth strandard error because it shows equal values. However, if we take into account the previous values, it should not be the same in both cases.
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Which statement accurately describes the energy needs for photosynthesis and cellular respiration?
A. Solar energy is needed for cellular respiration but not for photosynthesis.
B. Chemical energy in the form of glucose is needed for both cellular respiration and photosynthesis.
C. Chemical energy in the form of glucose is needed for photosynthesis, and solar energy is needed for cellular respiration.
D. Solar energy is needed for photosynthesis, and chemical energy in the form of glucose is needed for cellular respiration.
Answers
Answer:
D. Solar energy is needed for photosynthesis, and chemical energy in the form of glucose is needed for cellular respiration.
Explanation:
Differentiate between a pseudocoelom and a coelom based on the arrangement of germ layers. Why has the term “pseudo” (“false”) been used to describe that particular body plan?
Answers
The coelom is found in animals and located between intestinal canal and the body wall. It is a body cavity and is filled with fluid. It is formed from three germ layers during embryonic development.
What are the differences between coelom and pseudocoelom?
The Coelomate and pseudocoelomate are two classes of multicellular animals. They are classified based on the type of body cavities that they have. The body cavity of animals is known as the coelom.
Coelom is the the cavity between the gut wall and body wall. Coelom is developed from the mesoderm. Coelum surrounds the digestive tract and other organs in the body.
Whereas, the pseudocoelom, although it is a body cavity, it does not contain mesodermal lining. Mesoderm is in scattered in between endoderm and ectoderm.
Pseudocoeloms are not completely surrounded by mesodermal tissue, they lie in between the mesoderm and endoderm and hence why it is called false coelum.
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