Answers
Related Questions
1. which type of bond is formed between a metal and a nonmetal?
2. what type of bond is formed between 2 nonmetals?
3. what is the criss-cross method?
4. how are inoic compounds named?
5. how are covalent compounds named?
6. name the following compounds:
i. NaCl
ii. CO
iii. Na2S
iv. BN
7. write the formulas for the following compounds:
i. Iron(III) Phosphide
ii. Calcium Bromide
iii. Hydrogen Dioxide
iv. Chlorine Pentafluoride
v. Strotium Oxide
Answers
Answer:
Explanation:
1. Ionic bonds
2. Covalent
3. Basically you switch the subscripts around
4. Write the name of the cation, then the anion. Add proper suffix
5. Write the name of the element and the prefix. Add proper suffix
6.
i. Sodium Chloride
ii. carbon monoxide
iii. sodium sulfide
iv. boron nitride
7.
i. FeP
ii. CaBr2
iii. HO2
iv. ClF5
v. SrO
what are the differences between modern humans and neanderthals? for each activity listed below, select an h if modern homo sapiens did the activity better than neanderthals, and select an n if neanderthals did the activity better than modern homo sapiens.
Answers
The differences between modern humans and Neanderthals are detailed and varied. In terms of physical characteristics, Neanderthals had a more robust and muscular build, while modern humans have a more slender and agile physique.
Additionally, modern humans have a larger brain size and a more developed prefrontal cortex, which is associated with higher cognitive functions such as problem-solving and decision-making.
As for the activities, it is difficult to definitively state that one species did a certain activity better than the other, as there is a lot of variation within each species and the activities themselves may have differed in importance and complexity depending on the environment and culture.
However, based on archaeological evidence and genetic studies, we can make some general observations.
Hunting: H - Modern humans were more efficient hunters due to their ability to use more complex tools and techniques, such as bow and arrows and coordinated hunting strategies.
Artistic expression: H - Modern humans produced more intricate and varied forms of art, including cave paintings and sculptures, which suggests a greater capacity for abstract thinking and creativity.
Language: H - Modern humans developed complex language systems that allowed for more nuanced communication and social organization.
Survival in cold climates: N - Neanderthals had adaptations such as a stockier build and larger nasal cavities that helped them survive in colder environments.
Tool-making: H - Both species were skilled tool-makers, but modern humans had a wider range of tool types and more complex manufacturing techniques.
Overall, it is important to note that modern humans did not necessarily "replace" Neanderthals because of their superiority in all these areas, but rather a combination of factors such as environmental change, competition for resources, and interbreeding.
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A scientific name consists of 2 identifying pieces of information. In the correct order, they are ___________ &. _________. (2 word answer separated by 'and' or '&')
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Answer:
Binomial & nomenclature
Explanation:
Consist of genus, the first name and species,the second name
which of the following statements correctly describes the function of a signal peptide
Answers
Answer:
A signal peptide is a short amino acid sequence found at the N-terminus of many proteins. Its main function is to facilitate the targeting and translocation of the protein to the appropriate cellular compartment, typically the endoplasmic reticulum (ER) in eukaryotic cells or the plasma membrane in prokaryotic cells. The signal peptide plays a crucial role in protein sorting and secretion.
Here are the main functions of a signal peptide:
1. Targeting to the appropriate cellular compartment: The signal peptide contains information that directs the protein to a specific location within the cell. It acts as a zip code, guiding the protein to the correct destination. The signal peptide interacts with signal recognition particles (SRPs) and their corresponding receptors, which facilitate the transport of the protein to the appropriate membrane.
2. Translocation across the membrane: Once the protein reaches the target membrane (such as the ER membrane in eukaryotes), the signal peptide interacts with translocon complexes, which are protein channels that facilitate the movement of the protein across the membrane. The signal peptide acts as a signal sequence that is recognized by the translocon, allowing the protein to be translocated into the lumen of the compartment or inserted into the membrane.
3. Initiation of protein folding: During the process of translocation, the signal peptide is often cleaved off from the protein by signal peptidases. This cleavage event marks the completion of the translocation process. In some cases, the signal peptide helps initiate the folding of the protein by interacting with molecular chaperones and other folding factors present in the target compartment.
Overall, the signal peptide plays a crucial role in ensuring that proteins are correctly targeted, translocated, and folded in the appropriate cellular compartments. It is an essential component of the cellular machinery involved in protein sorting and secretion.
Only direct communication increases the animal’s
True
Or
False
Answers
Only direct communication increases the animal’s response is referrede to a true statement.
What is Communication?This is the process in which information is exchanged from one person to another and employs the use of their sense organs such as eyes and hears to receive the signals which are processed by the brain.
Direct communication also include the use of signals through body parts or touch which is usually understood and well interpreted for a particular purpose or cause.
This is therefore the reason why direct communication increases the animal’s response to different stimuli and is therefore regarded as the most appropriate choice.
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True or False: DNA polymerase can only work to elongate DNA in the 5` --- 3` direction?
Answers
True. DNA can only be extended by DNA polymerase in the 5' to 3' direction. This is so that the 5' phosphate group and the phosphodiester bond can be formed, which is catalysed by DNA polymerase.
Why does DNA grow 5 to 3 times longer?Using a deoxyribonucleotide, DNA polymerase separates the two terminal phosphates from the nucleotide's 5' end and then uses the free energy to create a phosphodiester bond.
Why only one way of DNA polymerase action?DNA polymerase can only synthesise in one direction by extending the 3' end of the previous nucleotide chain because it needs a free 3' OH group to begin synthesis. As a result, DNA polymerase travels in a 3'–5' direction along the template strand.
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rubella, rubeola, and varicella-zoster are all only acquired via
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Rubella, rubeola, and varicella-zoster are all viruses that can only be acquired via direct contact with an infected person or through contact with their bodily fluids, such as saliva or mucus.
Rubella, also known as German measles, is highly contagious and can spread through the air when an infected person coughs or sneezes. It can also be transmitted from a pregnant woman to her unborn child, which can lead to serious birth defects and developmental problems.
Rubeola, also known as measles, is a highly contagious viral infection that can spread through the air when an infected person coughs or sneezes. The virus can also survive on surfaces for several hours, making it possible for people to contract it by touching contaminated surfaces and then touching their nose or mouth.
Varicella-zoster, also known as chickenpox, is a highly contagious viral infection that can spread through the air when an infected person coughs or sneezes. It can also be transmitted through contact with the fluid from the blisters that appear on the skin of an infected person. Once a person has had chickenpox, the virus remains dormant in their nervous system and can reactivate later in life as shingles, a painful and sometimes debilitating condition.
In summary, rubella, rubeola, and varicella-zoster are all highly contagious viruses that can be acquired through direct contact with an infected person or their bodily fluids. It is important to practice good hygiene and avoid contact with infected individuals to prevent the spread of these viruses. Vaccines are also available to protect against rubella, rubeola, and varicella-zoster, and are recommended for all individuals to help prevent the spread of these viruses.
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What is the name for the positive subatomic particles in an atom?
A. Protons
B. Electrons
C. Nuclei (plural for nucleus)
D. Neutrons
It’s A:)
Answers
The recent development of hybrid and electric vehicles has what effect on
the environment?
Please help for my homework
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Answer:
They help reduce greenhouse gas emissions, but the downside is hybrid cars require more energy to produce than normal cars
Explanation:
Ok I'll see what I can do. I'll try my best to provide you the correct answer.
When studying a population you are studying the organisms of a single species in what type of area?
a. a designated area
b. multiple areas
c. random areas
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Explanation:
I did this a while ago I'm guessing it's A but I'm not too sure
The members of the phylum Porifera are commonly called?
Answers
Answer:
Sponges
Explanation:
Members of phylum Porifera are commonly known as sponges. They are generally marine and mostly asymmetrical animals. Spongilla is a fresh water sponge.
What do you think the planet earth will look like in 50 years?
Answers
Answer:
I persoonally think that it will be one big trash can
Explanation:
Its really sad to say but i think it will be covered in trash. PLEASE STOP LITTERING!!!
Answer:
I think that it could really depend on how we continue treating the earth. But if you want to know my opinion, I’m going to just say that I think the earth could have electric cars/ almost everyone would have one, and that we will most likely have virtual things for pretty much everything. But like always we still will need food.
Explanation:
this is what I think the world could look like in fifty years from now.
What are some examples of energy storage molecules
Answers
Answer:
Living organisms use two major types of energy storage.
Energy-rich molecules such as glycogen and triglycerides store energy in the form of covalent chemical bonds. Cells synthesize such molecules and store them for later release of the energy.Explanation:
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describe how the sporophytes of hornworts differ from the sporophytes of mosses or liverworts
Answers
Answer:
Liverworts, mosses, and hornworts look different from one another.
Explanation:
Each type of plant has a unique set of physical characteristics
Both adhere to the pattern of generational alternation.However, hornworts grow a long, slender sporophyte while liverworts grow a tiny sporophyte.Elaters are also used by liverworts to help spread their spores, whereas pseudoelaters are used by hornworts.
How do hornworts differ from mosses and liverworts?
Only algae share this characteristic with liverworts, mosses, and all other plants; the majority of hornwort species do not.Rhizoids are multicellular in mosses but unicellular in liverworts and hornworts. Image for describing the differences between the sporophytes of hornworts and those of mosses or liverwortsIn contrast to most bryophytes, hornworts have a broad, uneven foot and a zone of continuous growth at the base of the sporophyte.In contrast to liverworts, hornworts lack the stalk that connects the foot to the capsule that contains the spores. The most noticeable stage of a bryophyte's life cycle is the gametophyte.The primary distinction between mosses and liverworts is that the gametophyte of mosses is a prostrate, branched filamentous structure, whereas the gametophyte of liverworts is a thallose or a foliose.The fundamental life cycle of hornworts is comparable to that of mosses and liverworts.The sporophyte of hornworts is cylindrical and photosynthetic, unlike that of mosses, which is aerial and elongate. The hornwort's life cycle is dominated by the little, blue-green gametophyte.The group is distinguished by its slender, pipe-like sporophyte.Through the course of the plant's life, the sporophytes develop from the parent gametophyteThe gametophytic forms of the liverworts are extremely diverse (far greater than that shown by mosses or hornworts).The gametophyte is the dominating stage regardless of whether a liverwort is leafy or thallose, in terms of both volume and longevity.Sporophytes are rather transient. The primary plant structure is thallus-like and is devoid of genuine roots, stems, and leaves.Its haploid, flattened body creates gametes.So, it is referred to as a gametophyte. Mosses often feature a spirally structured foliage structure on an upright stem (3-D).Liverworts often form a flat, 2-D, bilateral thallus with flat, green growth.To learn more about sporophytes refer
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Do the trees discussed in the article make their own energy every day? Use evidence from the article to support your statement.
A Change in Leaf Color
Leaves go to a lot of trouble to turn red in the fall.
By Emily Sohn
September 17, 2006 at 11:00 pm
Every autumn, traffic creeps along New England’s roads as visitors look everywhere but at the road. These tourists flock to the region as soon as leaves begin to change color from a summery green to spectacular shades of red, orange, yellow, and purple.
“Being in the Northeast during autumn is just about as good as it gets in this country,” says David Lee. He’s a botanist at Florida International University in Miami.
Lee studies leaf color, so he’s biased. But plenty of other people share his admiration. Areas of the United States with especially colorful fall displays attract thousands of leaf peepers.
Even as they “ooh” and “aah,” few people know what makes many plants blush in the autumn. Research has shown that leaves change color when their food-making processes shut off. The chemical chlorophyll, which gives leaves their green color, breaks down. This allows other leaf pigments—yellow and orange—to become visible.
No one knows exactly how global warming will alter forests and affect fall colors.
But “there’s still a lot we don’t know about this,” Lee says.
It isn’t clear, for example, why different species of plants turn different colors. Or why some trees become redder than others, even when they’re standing right next to each other. And no one knows exactly how global warming will alter forests and affect leaf-peeping season.
In summer, when a plant is green, its leaves contain the pigment chlorophyll, which absorbs all colors of sunlight except green. We see the reflected green light.
The plant uses the energy it absorbs from the sun to turn carbon dioxide and water into sugars (food) and oxygen (waste). The process is called photosynthesis.
When chlorophyll breaks down, yellow pigments in leaves become visible.
As days get shorter and colder in the autumn, chlorophyll molecules break down. Leaves quickly lose their green color. Some leaves begin to look yellow or orange because they still contain pigments called carotenoids. One such pigment, carotene, gives carrots their bright-orange color.
But red is special. This brilliant color appears only because the leaves of some plants, including maples, actually produce new pigments, called anthocyanins.
That’s a strange thing for a plant to do without a reason, says Bill Hoch of the University of Wisconsin in Madison. Why? Because it takes a lot of energy to make anthocyanins.
Answers
Answer:
No, they don't.
Explanation:
Trees need leaves for photosynthesis because leaves contain chlorophyll. As the article states, the food-making process stops after these trees lose their leaves. Some trees keep their leaves all year long.
According to the article, trees do not make their own energy every day. This is because the process of energy is accomplished by photosynthesis which is usually carried out by the leaves. But trees generally lost their leaves during a particular time of the year.
What process is used by plants to make energy?The process that is used by the plant in order to make energy is known as Photosynthesis. With the help of this process, all green plants and some photosynthetic algae synthesize their own food in the form of glucose with the help of carbon dioxide and water in the presence of sunlight.
There are some plants that hold leaves for the entire year. In these plants, energy is made every day. But in nature, these plants are very few. Plants carry out the process of photosynthesis when they need energy in the form of glucose which is also transferred into the storage form of energy in starch.
Therefore, trees do not make their own energy every day. This is because the process of energy is accomplished by photosynthesis which is usually carried out by the leaves.
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Which is a point mutation and not a frameshift?.
Answers
An insertion or deletion of a nucleotide base that alters the reading frame is known as a frameshift mutation.
A point mutation only affects one amino acid and does not alter the frame.
The reading frame may or may not move as a result of the insertion or deletion of a nucleotide or combination of nucleotides. The mutation is referred to as a non-frameshift mutation if it does not result in a shift in the reading frame.
The addition or deletion of certain nucleotide base-pairs from the DNA molecule is referred to as an insertion or deletion.
The reading frame may or may not move as a result of the insertion or deletion of a nucleotide or combination of nucleotides. The mutation is referred to as a non-frameshift mutation if it does not result in a shift in the reading frame.
On the other hand, a mutation is known as a frameshift mutation if the reading frame does shift. Where it occurs will determine how it changes.
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Which of the following would you NOT expect to find in a bacterial cell?
A. Swimming using flagella
B. Having a cell wall around the plasma membrane
C. ATP production in mitochondria
D. Protein production on the ribosome
E. Sexual exchange of DNA with other bacteria
Answers
Answer:
C. ATP production in mitochondria
Explanation:
Bacterial cells do not possess mitochondria. Mitochondria are membrane-bound organelles found in eukaryotic cells and are responsible for ATP production through aerobic respiration. In contrast, bacterial cells generate ATP through processes such as glycolysis and the electron transport chain, which occur in the cytoplasm and the plasma membrane. Therefore, ATP production in bacteria does not involve mitochondria.
The other options listed, A, B, D, and E, are all characteristics or processes that can be found in bacterial cells. Bacterial cells can have flagella for swimming, possess a cell wall around the plasma membrane, produce proteins on ribosomes, and engage in processes like conjugation for the exchange of genetic material with other bacteria.
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The antibiotic streptomycin binds to the _______ of the ribosome. the effect is to _______.
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The antibiotic streptomycin binds to the 30S subunit of the ribosome. The effect of this binding is to inhibit the initiation of protein synthesis.
The bacterial ribosome is composed of two subunits, the 30S and 50S subunits, that come together to form a functional 70S ribosome.
The 30S subunit contains the binding site for messenger RNA (mRNA) and three binding sites for transfer RNA (tRNA), which are important for the process of translation, where the ribosome synthesizes proteins based on the sequence of the mRNA.
Streptomycin binds to a specific site on the 30S subunit, near the decoding site for the mRNA. This binding interferes with the accuracy of translation by causing misreading of the mRNA, leading to errors in protein synthesis.
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Which are characteristics of arthropods? Check all that apply.
radial symmetry
nervous system
asexual reproduction
segmented body
open circulatory system
Answers
Answer:4 5
Explanation:
Answer:
3 & 5
Explanation:
just did the test
continuous sequence of growth (interphase) and division (mitosis) in a cell. cell growth phase where a cell increases in size, carries on metabolism, and duplicates chromosomes prior to division. period of nuclear cell division in which two daughter cells are formed, each containing a complete set of chromosomes.
Answers
The cell cycle is a four-stage procedure in which the cell enlarges replicates its DNA gets ready to divide ( and splits (mitosis, or M, stage).
What is the cell's continuous process of growth, interphase, and division during mitosis?The cell cycle is a four-step process in which the cell grows in size (gap 1, or G1, stage), duplicates its DNA (synthesis, or S, stage), gets ready to divide (gap 2, or G2, stage), and divides (gap 3, or S, stage) (mitosis, or M, stage). Interphase, which accounts for the time between cell divisions, is made up of the phases G1, S, and G2.Interphase. The cell prepares for cell division during interphase while simultaneously going through regular activities. Numerous internal and external requirements must be satisfied for a cell to transition from the interphase to the mitotic phase.To learn more about cell refer to:
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If an atom like aluminum becomes an ion by losing 3 electrons, what is the
charge on the ion?
1+
2+
3+
3-
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How do volcanic eruptions help mineral resources spread across land?
Answers
The internal heat associated with young volcanic systems has been harnessed to produce geothermal energy.
Most of the metallic minerals mined in the world--such as copper, gold, silver, lead, and zinc--are associated with magmas found deep within the roots of extinct volcanoes.
which of the following can be induced by one or more intense weeks or too few regeneration periods? select one: a. overstraining b. overtraining c. overreaching
Answers
Too few regeneration periods or one or more intense weeks can lead to overreaching.
Why is it important to push yourself during exercise?Overextending yourself enables your body to make the additional efforts necessary to produce more results faster. By cutting down on the amount of time (days to weeks) that you push yourself until you are almost overtrained before easing up, overreaching helps you "shock" the body to get results.
When under heavy or intense loads, overreaching is a transient condition that develops. Overreaching is characterised by a generalised feeling of ill, disturbed sleep, and mood swings. Athletic performance is unaffected significantly by it.
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Do dominant traits or recessive traits always show?
Answers
Answer:
The traits due to dominant alleles are always observed, even when a recessive allele is present. Traits due to recessive alleles are only observed when two recessive alleles are present. For example, the allele for widow's peak is dominant and the allele for straight hairline is recessive.
Patients with Korsakoff's syndrome develop other symptoms besides memory loss. When they start lying to fill in" some of their memory gaps, we call this: a.confabulation b.apathy c.confusion d.retrograde antipathy
Answers
The exact mechanism by which confabulations occur is unknown, but they are thought to be related to impaired frontal lobe function, which is responsible for coordinating and controlling memory recall and the integration of sensory information.
Patients with Korsakoff's syndrome develop other symptoms besides memory loss. When they start lying to fill in some of their memory gaps, we call this confabulation. What is Korsakoff's Syndrome? Korsakoff's syndrome is a neurological disorder caused by a thiamine (vitamin B1) deficiency. The most prominent symptom is memory loss. Confabulation, or the creation of fabricated memories, is another hallmark sign of Korsakoff's syndrome. Patients with Korsakoff's syndrome frequently deny their memory deficits and confabulate to explain their memory lapses. Confabulations can be either spontaneous or triggered by a question or a cue. Confabulations are frequently a sign of frontal lobe dysfunction and are thought to represent the patient's attempt to fill in memory gaps. What is confabulation? Confabulation refers to the production of false memories or the distortion of true memories without the intention to deceive.
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one day, prokaryotic bacteria got tired of bring referred to as a simple organisms by eukaryotic cells. they felt that they should be recognized as complex individuals and challenged eukaryotes to a debate. as prokaryotic bacteria, what arguments would you use to defend your position?
Answers
Answer:
prokaryote cells are less structurally complex than eukaryotes, they are more chemically complex, since all of the prokaryote cell's biomolecules are floating around together.
Explanation:
Prokaryotic cells are usually a whole lot smaller and greater simple than eukaryotic. Prokaryotic cells are, in fact, able to be structurally extra truly because of their small length. The smaller a cell, the extra its floor-to-quantity ratio (the surface region of mobile compared to its quantity
What are prokaryotes and eukaryotes?Prokaryotes are organisms made from cells that lack a mobile nucleus or any membrane-encased organelles. Eukaryotes are organisms made of cells that possess a membrane-bound nucleus that holds genetic material in addition to membrane-certain organelles
How are prokaryotic bacteria special from eukaryotic cells?evaluating prokaryotes and eukaryotes
The number one difference between those two varieties of organisms is that eukaryotic cells have a membrane-bound nucleus and prokaryotic cells do not. The nucleus is where eukaryotes store their genetic information.
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Which lettered box could represent the rock conglomerate?
Answers
Answer:E
Explanation:I think it is
physiological changes are an inevitable part of the aging process. as the body ages, which of the following increases? A. Vit A
B. Vit B
C. Vit C
Answers
Physiological changes are an inevitable part of the aging process. As the body ages, Vit A increases.
A is the correct answer.
All organ systems experience physiological changes as we age. Arteriosclerosis develops, the cardiac output declines, and the blood pressure rises. A decrease in vital capacity, slower expiratory flow rates, and poorer gas exchange are all visible in the lungs.
Age-related physiological changes include diminished muscular mass and strength, bone loss and thinning, diminished hearing and vision, weakened immune systems, slower metabolisms, slower reaction times, and cognitive decline.
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Water requires a very large amount of energy to undergo a change of state compared to most molecular compounds.
True or false
Answers
Answer: true
yea lol :0
What are the three final nucleotides on the newly created mRNA in the animation sequence?
Answers
Answer: They are the stop codon
Explanation: At the end of and mRNA squence there are three nucleotides that tell the ribosome to end the protein being made.