Tetraterpene pigments called carotenoids come in shades of yellow, orange, red, and purple. The most pervasive colors in nature are carotenoids, which are found in photosynthetic bacteria, some types of fungi and archaea, algae, plants, and animals. (true)
what are carotenoids?Plants, algae, and photosynthetic bacteria all contain pigments called carotenoids. Bright yellow, red, and orange hues are created by these pigments in plants.
Types of carotenoidsXanthophylls and carotenes are the two main categories for carotenoids. Antioxidant qualities are present in both varieties of carotenoids. Additionally, some carotenoids may be transformed into vitamin A, which is crucial for the development and health of humans.
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Three-letter segments of mRNA code for specific
O sickle cells.
O disorders.
O chromosomes.
O amino acids.
First answer gets 5 stars
Each mRNA nucleotide's three letters is either a stop codon or a specific amino acid.
What do the three bases in mRNA stand for?Three components make up mRNAs: The 3′ end controls the stability of the mRNA, the center specifies the sequence of amino acids in the polypeptide, and the 5′ end provides binding sites for proteins that start the synthesis of polypeptides.
What is the name of a trio of mRNA nucleotides?A codon is a set of three nucleotide bases in messenger RNA that designates a certain amino acid. These codons will complement an anticodon that is linked to an amino acid.
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question which choice is a component of a nucleotide? responses phosphate group phosphate group carboxyl group carboxyl group amino group amino group r group r group
Each one is a part of a nucleotide. Three elements make up a nucleotide: a sugar, a phosphate, and a nitrogenous base.
The fundamental component of nucleic acids is called a nucleotide (RNA and DNA). The components of a nucleotide are a sugar molecule (either ribose in RNA or deoxyribose in DNA), a phosphate group, and a base that contains nitrogen. Adenine (A), cytosine (C), guanine (G), and thymine are the bases that are employed in DNA (T). Thymine is replaced by the nucleotide uracil (U) in RNA. Long strands of nucleotides make up the polymeric DNA and RNA molecules.
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Which of these shows an example of an insertion mutation?
The figure 3 shows an example of an insertion mutation.
What do you mean by insertion mutation?
An insertion is the addition of one or more nucleotide base pairs into a DNA sequence. This can often happen in microsatellite regions due to the DNA polymerase slipping.
Moreover, an insertion changes the DNA sequence by adding one or more nucleotides to the gene. As a result, the protein made from the gene may not function properly.
An insertion mutation occurs when an extra nucleotide is added to the DNA strand during replication. This can happen when the replicating strand "slips," or wrinkles, which allows the extra nucleotide to be incorporated.
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How do viruses help shape our evolution? *
Answer:
Explanation:
Viruses hijack nearly every function of a host organism's cells in order to replicate and spread, so it makes sense that they would drive the evolution of the cellular machinery to a greater extent than other evolutionary pressures such as predation or environmental conditions.
the epiglottis is a smooth muscle that covers the glottis during swallowing. group of answer choices true false
It is true that the epiglottis is a smooth muscle that covers the glottis during swallowing.
The epiglottis is a structure of elastic cartilage located just at superior portion of the larynx. The pelvis is an indentation in each lung thru which blood vessels enter and exit the lung. During swallowing, the epiglottis is indeed a smooth muscle that covers this same glottis.
The epiglottis is a cartilaginous flap of skin that controls the flow of air into to the trachea. The epiglottis is the topmost cartilage that protects the larynx while swallowing. The vocal cords have been pulled across the glottis as well as vibrated by exhaled air during speaking, producing sounds that can be converted into speech.
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imagine you discovered two new species of fish. one has internal fertilization and the other fertilizes eggs externally. in both species, only one adult provides parental care for the eggs in a nest. in which species is paternal care more likely to have evolved and why? (20 points)
A female egg is fertilized by a male sperm outside of the female's body. This process of reproduction is known as external fertilization. parental care for the eggs in a nest. in which species is paternal care more likely to have evolved
More than 33 000 species of bony fish use external fertilization, a general phrase that refers to the discharge of sperm and eggs into the environment outside of the body. This process can range from broadcast spawning to the direct sperm attachment to eggs. Which species develops inside while being internally fertilized?
Fertilization Within
Most bony fish, numerous reptiles, some cartilaginous fish, the majority of amphibians, two mammals, and all birds exhibit this. Eggs from reptiles and insects are leathery, whereas eggs from birds and turtles have a lot of calcium carbonate in the shell, making them hard.
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Helppppp this writing is due by 1:00. This model needs to have 4 paragraphs explaining the process of how the landform started and how it changed and became what it looks like now. The topic is teepee landform
The process of how the teepee landform started and how it changed and became what it looks like now is given below.
How were the teepee rocks formed?Teepee (sometimes written tepee or tipi) structures are sedimentary structures considered to suggest formation in peritidal environments. Teepees are mostly the consequence of water evaporation and subsequent mineral precipitation from sediment, which causes expansion and buckling to form a shape like a teepee.
Native Americans of the Plains were nomadic hunters, thus they needed to be able to shift their sites fast and have a portable, strong, water-resistant shelter. The Tipi was often made of tanned buffalo skin and was simple to take apart and erect.
Therefore, tipi, also known as a teepee, is a sort of cone-shaped shelter that was historically constructed using wooden poles and bison hides for the roof and walls. Though it has undergone some modification in terms of beautification, it is still in use up till today.
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what are the two significant morphological developments that occurred in hominins and how did they contribute to their success
The two main physical changes in hominins were the ability to walk on two legs and the evolution of smaller, blunt canines.
Sahelanthropus tchadensis, the oldest known hominid, lived between 6 and 7 million years ago.They had a substantially complete skull, with the foramen magnum—the opening at the base of the skull through which the spinal chord passes—positioned and oriented so that they could stand and walk on two legs, similar to modern humans with a vertical spinal column.
Bipedalism gave them complete arm freedom, allowing them to build and utilize tools more effectively, reach up to pick fruit from trees, and use their hands for social interaction and exhibition. They can easily transport both infants and tools.
These species would have benefited from this hybridization of terrestrial and arboreal behaviour in the mixed woodland habitat they inhabited. Males' canines are smaller and more bluntly shaped than those of modern humans, but they are larger and more pointed than those of male apes. They no longer need large canines like earlier apes since they had begun employing more sophisticated tools.
The canine teeth are extremely crucial for speaking, biting, and many other essential tasks.
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which part of the mitochondrial atp synthase binds h and transports it down its concentration gradient in order to drive atp synthesis?
By changing their conformation at the catalytic sites, the beta subunits can bind to ADP and a phosphate group and produce ATP.
ADP and inorganic phosphate are brought together to form a bond and produce the ATP molecule as the proton (H+ ion) passes down the concentration gradient, which spins the enzyme. In order to allow for another phosphorylation, the resulting ATP molecule is released. Hydrogen ions are pumped across the inner mitochondrial membrane of the cell, from the matrix into the intermembrane space, using energy during the electron transport process. By flowing back across the mitochondrial membrane and into the matrix via ATP synthase, hydrogen ions are propelled by a chemiosmotic gradient to do so, which results in the production of ATP.
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How do you do a Punnett square and how do you solve it?
Hydrogen bonding is a type of force that occurs inside of molecules.
A. False
B. True
Answer:
[tex]\Huge \boxed{\textbf{B. True}}}[/tex]
Explanation:
Hydrogen bonding plays an important role inside many molecules. It occurs due to an electrostatic attraction between a hydrogen atom bonded to an electronegative element like oxygen or nitrogen, and another nearby electronegative atom that possesses a lone pair of electrons. This second atom acts as an acceptor for the hydrogen.
The hydrogen is pulled slightly toward the acceptor due to their opposing charges. These hydrogen bonds can form both between different molecules as well as within different parts of the same molecule.
They are stronger than the normal attractions between permanently polarised molecules or non-polar atoms. However, hydrogen bonds are not as intensely strong as true covalent bonds, which involve sharing electrons, or ionic bonds that transfer electrons.
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Which category of death results from the end of all brain activity as seen on an electroencephalogram?
The category of death that results from the end of all brain activity as seen on an electroencephalogram is known as brain death.
What is brain death?Brain death is described as when a person on an artificial life support machine no longer has any brain functions. Brain death means they will not regain consciousness or be able to breathe without support.
An electroencephalogram (EEG) is also described as a test used to evaluate the electrical activity in the human brain.
Brain death is permanent, it is irreversible, and also complete loss of brain function which may include cessation of involuntary activity necessary to sustain life.
There are four basic electroencephalogram frequency patterns and they include:
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a branch of the autonomic nervous system that prepares the body for activity by speeding up the heart rate is called the system.
The sympathetic branch of the autonomic nervous system raises heart rate, blood pressure, and breathing to get the body ready for exercise. The sympathetic division also encourages the liver to release glucose for use as fuel.
To increase heart rate, the sympathetic nervous system (SNS) produces the catecholamines epinephrine and norepinephrine. The primary function of the parasympathetic nervous system is to calm down or lessen your body's activity. The rhyming expressions "rest and digest" or "feed and breed" are good methods to remember what your parasympathetic nervous system performs because of the messages they carry. When a person is confronted with a dangerous or terrifying scenario, one component of the autonomic nervous system, known as the sympathetic nervous system, reacts. It will automatically raise heart rate and respiration while moving blood to the muscles.
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Which of the following is a characteristic of offspring produced by meiosis, and does not characterize offspring produced by mitosis?
A.
four haploid cells with chromosomes and alleles that are genetically different than the parents
B.
four haploid cells with chromosomes and alleles that are genetically identical to the parents
C.
two diploid cells with chromosomes and alleles that that are genetically different than the parents
D.
two diploid cells with chromosomes and alleles that are genetically identical to the parents
Answer:
the answer is B I did this last week
describes the response of auditory nerve fibers that allows for the plausibility of the theory of frequency representation:
The cochlea sends information about sound stimuli to the cochlear nucleus of the brainstem via auditory nerve fibres.
Depending on whether receptor cell population in the cochlea is contacted, the neurons that give rise to these fibres can be split into two categories.
Basically, vibrations (sound signals) are transmitted to the brain via the auditory nerve. Remember that hearing sounds is made possible by several different parts of the ear, not just the auditory nerve. A number of additional ear components are also involved.
Some sensory systems that provide information that is relevant to motor functions are distinguished by a "spatial code" in addition to a "temporal code" because they display characteristics that are tailored to specific spatial directions. Examples include otolith and semicircular canal afferents, as well as muscle spindle afferents.
Complete question:
The volley principle first proposed by Weaver & Bray (1937)
describes the response of auditory nerve fibers that allows for the plausibility of the theory of frequency representation:
a) place code
b) temporal code
c) population code
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which division of the piriform cortex produces representations of the features of odorant molecules?
The anterior division of the piriform cortex produces representations of the features of odorant molecules.
Piriform cortex is a region of the brain also called as pyriform cortex, situated in the cerebrum region. Its function is to regulate the mechanisms of the olfactory experiences. It is at the junction of the temporal and frontal lobes.
Odorant molecules are the ligands that bind to the odorant receptors present at the neurons of the body involved in the olfactory responses. They are names odorants because they perceive smell. The receptors of the odorant molecules are GPCRs. Odorants are of various types based on the type of functional group they possess.
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if you are studying a eukaryotic, multicellular, non-photosynthetic organism, what piece of information would be most useful in determining if it is a fungus or an animal?
Information about it has a cell wall or not would be most useful in determining if it is a fungus or an animal
A cell wall is an external structural layer that surrounds some types of cells. It may be hard, flexible, or occasionally rigid. It serves as a filtration system as well as structural support and protection for the cell.
Many of the traits that set plant cells apart from animal cells are caused by the cell wall. The cell wall serves a variety of activities that are essential to plant life, despite frequently being thought of as an inert product used only for mechanical and structural purposes.
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1. which carbon source will lead to greater atp production via cellular respiration: a 6-carbon saturated fatty acid vs. a 6-carbon carbohydrate? why?
A 6-carbon saturated fatty acid produces more ATP than a 6-carbon carbohydrate.
Due to the greater number of electrons that a 6-carbon fatty acid can access, it will produce more ATP.
Because the carbons in a fatty acid's backbone are more reduced (contain more electrons) than those in a 6 carbon carbohydrate, the fatty acid is 6 carbon saturated. More NADH/FADH2 produces more ATP during cellular respiration, which is a result of more electrons.
This higher production of ATP results from the higher yield of acetyl-CoA molecules created from fatty acids (3 acetyl-CoA molecules per 6 carbon atoms) as compared to glucose, rather than ATP produced as a result of the -oxidative process (2 acetyl-CoA molecules per 6 carbon atoms).
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What environmental parameters would need to be monitored as DDT
Answer:
1. Soil and water samples for levels of DDT and its metabolites
2. Air samples for levels of DDT and its metabolites
3. Sediment samples for levels of DDT and its metabolites
4. Biological samples for levels of DDT and its metabolites
5. Surface water run-off for levels of DDT and its metabolites
6. Aquatic life for levels of DDT and its metabolites
7. Plant life for levels of DDT and its metabolites
8. Temperature and pH levels in the environment
9. Wind speed and direction
10. Rainfall levels
Remote sensing data helps scientists improve their understanding and predictions about climate change.
a. True
b. False
Remote sensing data helps scientists improve their understanding and predictions about climate change. This is a true statement.
It allows for the monitoring of Earth's surface, oceans, and atmosphere at various spatiotemporal scales, enabling the study of processes or long- and short-term events related to the climate.
Remotele sensing photos, which are captured with specialised cameras, are used by scientists to "feel" the Earth. Examples include: We can see considerably more from the air and space than we can from the ground because of the cameras on satellites and aircraft that snap photographs of large swaths of the Earth's surface.
For example, isotope ratios, elemental analysis, biomarkers, and biogenic silica are examples of chemical proxy records. When combined, these proxies allow us to recreate the climate from hundreds of millions of years ago.
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in biology the different areas of study are connected and overlap in various ways with concepts that cut across all discliptines which pair of crosscutting concepts are best exeplied when birds fly south when winter comes to the united states and north when spring arrives
Patterns; cause and effect are pair of crosscutting concepts are best explained when birds fly south when winter comes to the united states and north when spring arrives.
What notions span crosscutting concepts?
In all branches of science, crosscutting concepts are useful. As such, they serve as a means of connecting the various branches of science. They consist of patterns, cause-and-effect relationships, scale, proportion, and quantity, systems, and system models, as well as energy and matter, structure and function, stability, and change.
Patterns: Observed patterns in nature serve as a guide for organizing and classification and raise inquiries about the connections and reasons that underlie them.
Cause and Effect: Events have causes, some of which are straightforward and others of which are complex. Science and engineering place a high priority on understanding causal links and the systems that mediate them.
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do all living things have the same number of genes?
The end outcome is the biodiversity we are familiar with today. However, it is impossible to directly compare species because their genes are varied and they do not all have the same number of genes.
Does each individual possess the same number of genes?Does everyone share a genome? Most people have a similar human genome. The genome does, however, contain variants. Differences in look and health are a result of this genetic variation, which makes up roughly 0.001 percent of each person's DNA.
Do all forms of life have genes?All plants and animals are composed of cells, and those cells contain genetic material in the form of genes and chromosomes (usually in the nucleus).
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30 points & not that hard
The town of Fairfield, Connecticut is located on the east coast of the United States and is proposing clean energy projects such as solar panel farms to help reduce
carbon dioxide emissions and reduce electrical power costs to the town. The town has created a Clean Energy Task Force to lead these projects. You are going to attend a town meeting to ask questions about their proposals to install solar farms in various locations such as the parking lots of local high schools and over a
former landfill.
List at least 5 questions you should ask the Clean Energy Task Force before you make a decision.
(Please write a minimum of three sentences)
Answer:
Explanation:
First I would ask
how much their budget is for one year. Next I would ask how they are going to have more clean energy. Other questions I would ask are where will you install the solar farms, will the farms impact local businesses and how much dirty energy they want to get out of the atmosphere
True or false? Neutrons do not have an electrical charge:
Why are the differences between prokaryotic and eukaryotic translation of mRNA useful to humans?
For the regulation of genes during nutritional shortage and stress, development and differentiation, nervous system function, aging, and illness, translational control in eukaryotic cells is essential. Prokaryotes are able to respond quickly to environmental cues because transcription and translation happen simultaneously in the cytoplasm.
what are Prokaryotes ?Any organism without internal membranes is referred to as a prokaryote, usually written procaryote. These organisms lack a defined nucleus and other organelles.
what is eukaryotic ?eukaryotic can be explained as a living things with nuclei in their cells. Eukaryotes include all animals, all plants, all fungi, and many unicellular creatures.
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What is the base sequence on the messenger RNA (mRNA) molecule transcribed from it?
A. TGG CAC GTC CTA
BTGG CUC GTC CTU
C. UGG CTC GUC CUT
D. UGG CAC GUC CUA
describe the direction of blood and lymph movement between arterioles, blood and lymph capillaries, and venules.
Blood flows from arteries to arterioles then to tissues & venules, finally to veins. Fluid that leaks out of the capillaries becomes interstitial fluid and is drained out as lymph. This lymph is circulated in the lymphatic circulation.
Lymph flows from the interstitial tissue to lymphatic capillaries to larger lymphatic vessels to lymphatic ducts and ultimately into venules, finally to veins.
What is blood?
Solids and liquids make up your blood. Water, salts, and protein make up the plasma, which is the liquid component. Your blood contains more than 50% plasma. Red blood cells, white blood cells, and platelets make up your blood's solid portion. Your tissues and organs receive oxygen from your lungs through red blood cells (RBC).
What are the main functions of blood?
delivering nutrition and oxygen to the tissues, including the lungs.clotting blood to stop excessive blood losscontaining immune system-supporting cells and antibodies.delivering waste materials to the liver and kidneys, which clean and filter the blood.control of body temperature.What organ makes blood?
The bone marrow produces blood cells. The soft, spongy substance in the middle of the bones is the bone marrow. 95% of the blood cells in the body are produced by it.
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in 2020 the united states department of agriculture reported that 13.8 million people in the united states were food insecure. food insecurity is a disruption of eating patterns due to lack of resources. in some large cities where residents have very little access to nutritious food options, empty lots are being purchased in the neighborhoods for residents to utilize for community gardens. these gardens will collectively be cared for by the community and the harvests will be available to community members. what is a social consequence of this sustainable use of land?
The social consequence of sustainable use of land is that it lead to:
Poverty reductionSocial investmentSafe and caring communitiesWhat is land usage that is sustained?Sustainable land management (SLM), according to the United Nations, is the "use of land resources, including soils, water, animals, and plants, for the production of goods to satisfy changing human requirements, while concurrently safeguarding the long-term productive potential of these assets
The health of our social and economic system depends on the land. Land controls the flow of water and nutrients, maintains biodiversity, stores carbon, and offers resources to businesses as well as jobs and food for individuals when it is properly and sustainably maintained.
Therefore, In order to meet human needs both now and in the future, sustainable land use provides a fair and balanced distribution of land, water, biodiversity, and other environmental resources among the numerous competing claims.
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Which is a true statement regarding the waste products produced by plant processes?
A. Plants produce oxygen and carbon dioxide.
B. Plants produce oxygen and nitrogen.
C. Plants produce only carbon dioxide.
D. Plants produce only oxygen.
Plants produce oxygen and carbon dioxide. Water and carbon dioxide are changed into oxygen and glucose during photosynthesis.
What are the products of photosynthesis?Water and carbon dioxide are changed into oxygen and glucose during photosynthesis. The plant consumes glucose and produces oxygen as a byproduct. Oxygen and glucose are transformed into water and carbon dioxide during cellular respiration. By-products of the process include carbon dioxide, water, and ATP, which is turned into energy.In the presence of light, the organic molecules carbon dioxide and water are used in photosynthesis to create glucose. The green leaves of growing plants experience this reaction.In the process of photosynthesis, glucose, oxygen, and water are produced.To learn more about photosynthesis refer,
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Please help! I have no idea how to do this
1) cell membrane: protects and separates the cell from other cells in the environment, controls what enters and leaves the cell
2) mitochondria: generate most of the chemical energy needed to power the cell's biochemical reactions. (referred to as powerhouses)
3) Smooth ER: synthesizes lipids, phospholipids as in plasma membranes, and steroids
4) rough ER: produce proteins for the rest of the cell to function
5) nucleus: store the cell's DNA, maintain its integrity, and facilitate its transcription and replication.
6) cytoplasm: provides a platform upon which other organelles can operate within the cell.
7) Vacuole: help sequester waste products
8) lysosomes: They break down excess or worn-out cell parts. They may be used to destroy invading viruses and bacteria.
9) ribosomes: the site of protein synthesis in the cell.
10) Golgi apparatus: Golgi apparatus prepares proteins and lipid (fat) molecules for use in other places inside and outside the cell.
