The main environmental factors that affect photosynthesis are: light, CO2 and temperature. Also, the availability of water and nutrients are important factors.
How to increase the rate of photosynthesis?Plants kept under ideal conditions of luminosity and carbon dioxide concentration increase the rate of photosynthesis as the ambient temperature increases, up to close to 40°C. Above this temperature limit, there will be a drastic reduction not only in photosynthesis, but also in most vital reactions.
The photosynthetic rate, that is, the intensity of photosynthesis that the plant performs, can be changed by the amount of light it receives. The greater this light radiation, the greater the photosynthetic rate, if there is no other factor such as temperature or water availability limiting the process.
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What country often experiences the first and worst effects of El Nino, including flooding and destruction of villages?
A. India
B. Japan
C. United States
D. Peru
Peru is the country that often experiences the first and worst effects of El Nino, including severe flooding.
El Nino is a climatic pattern which describes the unusual warming of surface waters and it is part of a larger phenomenon called 'El Nino - southern oscillation (ENSO)'.
ENSO includes the El Nino and La Nino, the warm phase and cool phase respectively. El Nino occurs irregularly at two - seventy years intervals.
El Nino events are indicated by the increase in sea surface temperature by 0.9 Fahrenheit for at least five successive three months intervals.
El Nino has devastating impacts on the Peruvian and Ecuadorian economies. They cause an increase in precipitation which results in a drastically increased rainfall contributing to coastal flooding and erosion. It also destroys buildings, crops and limits transportation.
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The total number of individuals of a species worldwide
Answer:
8.7 million - plus or minus about a million
Explanation:
"The approach accurately predicted the number of species in several well-studied groups such as mammals, fishes and birds, providing confidence in the method
A. Watch the video B. Answer questions below 0:00 5:05 This In The Clinic video will task you 1x O 1.Briefly explain why S. salivarius was selected 2.Briefly explain why the S. salivarius can not be cultured 3. Briefly explain steps how PCR works 4. In the crime scene, which specimen was used for PCR testing? 5. Explain why PCR testing is used in this crime scene 6. What is the purpose of gel-electrophoresis? 7. Briefly explain steps how gel electrophoresis works. 8. Briefly explain how the case was solved. S
The S. salivarius is chosen because it the predominant gram positive bacteria that colonizes the oral cavity shortly after birth.
What is PCR?Polymerase chain reaction(PCR) test is a type of test that is used to identify a particular deoxyribonucleic acid of an organism.
Streptococcus salivarius cannot be cultured especially when the test sample is contaminated with other body normal flora.
The steps of PCR testing include the following:
Denaturation by heatAnnealing Primer to Target SequenceExtensionEnd of the First PCR CycleOn a crime scene, the specimen that can be used for PCR testing are blood and body secretions.
PCR testing can be done on a scene with blood spills.
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Use the sample data below to answer the following question(s). Biologists studying the re-vegetation of two species of succulent plants in the South African desert examined the number of plants that survived depending on whether they were planted in multi-species clumps or planted alone. The following data resulted:
Planted in Planted
Multi-Species Clumps Alone
Number of Species 1 Survived 64 87
Number of Species 2 Survived 34 47
If two different surviving plants are randomly selected, find the probability that they both were species 1.
If two different surviving plants are randomly selected, find the probability that they both were planted alone.
The probability that they both were planted alone is 0.3325.
What is genetic probability?Probability serves to mathematically estimate the possibility of events that happen by chance, that is, as a matter of luck.
In this case:
Number of plants planted alone = 134P(both plants were planted alone) = 134/232 x 133/231 = 0.3325So the probability that both were planted alone is 0.3325.
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Hey y’all a gal needs help
Answer:
energy-rich molecule: ATP
use: it is hydrolyzed by cells to produce energy. Under standard conditions the removal of a phosphate group from ATP to produce ADP + Pi yields 30.6KJmol‐¹.
organelle: mitochondria
What is true about the thickness of the ozone layer?
It has gradually decreased in the last couple of years.
It has remained the same in the last couple of years.
It has entirely disappeared in the last couple of years.
It has gradually increased in the last couple of years.
Answer:
A
Explanation:
The top answer is correct, over time it has become weaker.
Answer: The answer is A (It has gradually decreased in the last couple of years)
Over the Earth's surface, the ozone layer's average thickness is about 300 Dobson Units, or a layer that is 3 millimeters thick.The thickness of the ozone layer changes due to increasing concentrations of ozone-depleting substances in the atmosphere.Air motions also increase the ver- tical thickness of the ozone layer near the poles, which increases the value of total ozone in those regions. Tropospheric weather systems can temporarily reduce the thickness of the stratospheric ozone layer in a region, low- ering total ozone at the same time.It is thinning due to the release of man-made compounds called chlorofluorocarbons (CFC). The net effect that CFCs have on the ozone layer is to recombine an oxygen atom with an ozone molecule to form two oxygen molecules. From 1978 to 1991, global stratospheric ozone levels have decreased by 3%.gamma ray
microwave
rapido wave
ray
Answer:
radio wave
Explanation:
1km = 1000 metres, or 10³, so it must be a radio wave
What theories did Isaac Newton use to describe the motion of the planets? Select all that apply.
periodic motion
laws of motion
law of ellipses
gravity
Answer: Newton developed a mathematical formulation of gravity that explained both the motion of a falling apple and that of the planets. He showed that the gravitational force between any two objects is proportional to the product of their masses and inversely proportional to the square of the distance between them.
Explanation:
Answer: laws of motion, gravity
Explanation:
They were the only theories that were his.
Sir Isaac Newton, an English mathematician and physicist, developed three laws of motion that helped explain why the planets move the way they do. He also developed the first widely accepted theory of gravity, which also explained why objects in the solar system move the way that they do.
occurs when the individual inherits only one (female) X chromosome
According to the research, Turner syndrome is a condition that occurs when the individual inherits only one (female) X chromosome.
What is Turner syndrome?It is a genetic condition that is due to the lack of an X chromosome or part of it and can include characteristics such as delayed or incomplete development of puberty.
It can be diagnosed at birth or during childhood, puberty, or adulthood.
Therefore, we can conclude that according to the research, Turner syndrome is a condition that occurs when the individual inherits only one (female) X chromosome.
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Pick one of the following genetic variations that have occurred in human evolution. Then pick one of the three causes of genetic variation (meiosis, replication errors, environmental impacts) and make a claim as to why you think that particular cause of genetic variation was the cause of the change. Use supporting research and/or data to support your claim.
- Smaller bodies
- Smaller brains
- Smaller teeth and jaws
Smaller teeth and jaws are due to genetic variation, which occurred by mutations (errors in DNA replication) and were selected to fill a suitable niche.
What is evolution?Evolution is the mechanism of change of one species to adapt given environment, whereas mutations are the raw material for evolution.
In this regard, scientific evidence supports the fact that jaws evolved to become shorter in humans and thus adapt to a pastoral lifestyle.
In conclusion, smaller teeth and jaws emerged by mutations and were selected to fill a suitable niche.
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What happened to the music industry between and 1987
The music industry between 1980 and 1987 experienced a positive turnaround in quality and competition.
What is Intellectual Property Antitrust Protection Act of 1987?This act was set up by the government in 1987 to ensure that the consumer welfare was made priority.
There was an increase in quality and competition due to intellectual property laws which was established and also led to the music industry experiencing a boom.
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how does the temperature of water change if you heat it after it has already reached the boiling point?
If the DNA sequence is CCAATTGA, what is the compliment? I need this fast
Answer: GGTTAACT
Explanation:
Why do you think it is beneficial for a pathogen to make its host very sick without killing the host?
It is beneficial for a pathogen to make its host very sick without killing the host simply because it can always continue to take over the hosts body.
What are pathogens?Pathogens are microscropic organisms which causes diseases to plants and animals
Some few group of pathogenic organisms which are highly infectious are:
BacteriaVirusFungiSo therefore, it is beneficial for a pathogen to make its host very sick without killing the host simply because it can always continue to take over the hosts body.
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Front legs of a cat and the arms of a human share a bone structure
Answer: It will be a homologous
Explanation:
The cichlid is a colorful fish found in freshwater lakes. There are over a thousand species of cichlid fish today. If a species of cichlid became extinct, the niche the fish filled within the ecosystem would be left open. Explain how an available niche after extinction can lead to speciation.
An available niche after extinction can lead to speciation because it allows the emergence of genetic variation in other competing species.
What is speciation?Speciation is a slow process associated with the emergence of reproductive isolation barriers in a population.
These barriers lead to the absence of gene flow and eventually to the emergence of new species.
In conclusion, an available niche can lead to speciation in other competing species.
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Discuss the cause and transmission of bilharzia
Bilharzia becomes infected if you come into connection with contaminated water for example, when swimming, swimming or washing and the tiny worms tunnel into your skin. Once in your body, the worms move through your blood to areas such as the liver and bowel. After a few weeks, the worms start to lay eggs.
What are the ways of transmission of bilharzia?The parasites enter the body when a person is swimming, washing, or swimming in polluted water. They can also become contaminated by drinking the water or eating food that a person has passed in untreated water.
How can the space of bilharzia be stopped?Prevention & Control
Avoid swimming or wading in freshwater when you are in nations in which schistosomiasis happens.Drink secure water.Water used for bathing should be brought to a rolling boil for 1 minute to kill any cercariae, and then chilled before bathing to avoid burning.To learn more about Bilharzia, refer
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Match functions to the appropriate groups of proteins.
enzymes proteins of extracellular structures
proteins of myofilaments in the cells of muscle tissue
proteins playing a role in the organism's defense system
proteins transporting oxygen in the blood hormones
proteins of the karyokinetic spindle
Function
transformations
of matter and
energy
control of
metabolic
processes
formation of
structural
components
transport
movement
cell division
defense
Group of Proteins
Examples
trypsin, lipase,
carbonic
anhydrase,
cytochrome c
insulin, glucagon,
growth hormone
collagen
hemoglobin
actin, myosin
tubulin
immunoglobulins
The groups of proteins and their appropriate functions include the following:
Enzymes proteins of extracellular structures - collagen.Proteins of myofilaments in the cells of muscle tissue - myosin, actinProteins playing a role in the organism's defense system - immunoglobulinsProteins transporting oxygen in the blood hormones - hemoglobinProteins of the karyokinetic spindle - tubulinWhat is Protein?This is referred to as a biological molecule which is involved in the growth and repair of tissues in the body system. They contain two or more amino acids which are derived when they are broken down with the aid of enzymes.
There are different types of proteins with their specific functions such as hemoglobin being an oxygen carrier in the blood etc. The groups of proteins and their appropriate functions can be seen above.
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What is the Linnaean system of classification? Why do scientists classify animals?
Answer:
-Linnaean Classification System: Classification of the Human Species.
-Biological scientists have worked to classify earth's organisms in a manner that would help us understand how both the present and the extinct species relate to each other.
Which components are part of the bone matrix? Select all that apply.
•Osteoid
•Adipose tissue
•Calcium salts
•Osteoclasts
•Osteogenic cells
The components that are part of the bone matrix are as follows:
OsteoidCalcium saltsWhat is the bone matrix?The bone matrix is that part of the bone tissue that forms most of the mass of the bone.
The bone matrix is comprised of organic and inorganic substances. The organic component of the bone matrix includes the following:
collagenground substanceHowever, the inorganic component is mainly;
inorganic bone salts
hydroxyapatite
Therefore, the components that are part of the bone matrix are as follows:
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Two individuals who are heterozygous for Huntington’s are pregnant with a child. What is the probability that the resulting child will not inherit Huntington’s disease ?
Calculate the probability. The Punnett square is provided to show your work
The probability that the resulting child will not inherit the disease is 25%.
Probability in geneticsAssuming that the disease is represented by the allele A (a). Huntington's disease is autosomal dominant.
Thus, the genotypes of the two parents will be Aa each.
Aa x Aa
AA Aa Aa aa
Probability of the child having Huntington's = 3/4 or 75%
Probability of the child not having Huntington's = 1/4 or 25%
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look at the picture
Answer:
Clean + Renewable
Explanation:
Answer:
Clean and Renewable
Explanation:
hope it helps
Enzymes can be inhibited in different ways. Describe two methods of enzyme inhibition by describing similarities and differences.
Enzymes can be inhibited in different ways this can inclued three types of reversible enzyme inhibition: competitive, non-competitive and uncompetitive.
How can enzymes be inhibited?Irreversible and reversible enzymatic inclusion. A valent-chain inhibitor occurs with a valent-chain inhibitor, whereas a valent enzyme does not occur with a valent-chain inhibitor.
In enzymatic inhibition, the inhibiting substance forms chemical bonds with the enzymes in order to interfere with their catalytic activity. This inclued types of enzyme inhibition:
Irreversible inhibitors bind to enzymes leading to their definitive inactivation. These inhibitors are very toxic to the body as they are not specific, being able to inactivate any enzyme.Reversible inhibitors can be divided into two groups: competitive and non-competitive. This division is based on the presence or absence of competition between the inhibitor and the substrate for the active center of the enzyme.See more about enzymatic inhibition at brainly.com/question/13174512
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4. How can one patient have a radiologic procedure to diagnose a condition, while another has radiation treatment to destroy a tumor?
The difference is due to the dose and the purpose of the radiation.
What is radiology?Radiology is the application of radiation in medicine to diagnose or to treat diseases.
Diagnosis of diseases is aimed at identifying the cause of a disease.
Treatment of diseases is aimed at curative purposes.
Therefore, one patient will have a radiologic procedure to diagnose a condition because the cause of the disease is yet to be ascertained, while another has radiation treatment to destroy a tumor because radiation can destroy tumors at a particular dose.
In conclusion, radiation can be use to diagnose or treat diseases based on the dose.
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Who sets the guidelines for water protection?
residents
local agencies
you
EPA
Answer:EPA
Under SDWA, EPA sets standards for drinking water quality and oversees the states, localities, and water suppliers who implement those standards.
Explanation:
The lens of a person's eye becomes thinner as the person watches a train leave. This is an example of _________________________.
Answer:
Refraction
Explanation:
The lens is pulled thin, allowing the light rays to refract slightly.
Explain why plant forms of plankton are not as widespread throughout the depths of the oceans as the animal forms are
Explanation:
Phytoplankton is the base of several aquatic food webs . In a balanced ecosystem, they provide food for a wide range of sea creatures
Down in the ocean depths lot's of nutrients are available for the phytoplankton but without sunlight they can't grow phytoplankton use nutrients and must be transported to the surface
which type of inhibitor will achieve saturation point at alower substrate concentration? With a reason
The molecule in question is classified as an enzyme inhibitor because it interferes an enzymatic reaction. There are two types of inhibitors; competitive and noncompetitive inhibitors. Competitive inhibitors bind to the active site of the enzyme and control substrate from binding.
What do competitive and noncompetitive inhibitors do?
The competitive inhibitor binds to the occupied site and prevents the substrate from binding there.
The noncompetitive inhibitor binds to a separate site on the enzyme; it doesn't block substrate binding, but it causes other differences in the enzyme so that it can no extended catalyze the reaction efficiently.
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You are reviewing a skeleton with severe trauma to the left clavicle, left scapula, and left humerus. The skull is severely fragmented as well. You notice the clavicle is separated cleanly in half mid-diaphysis. Nearby, the anterior portion the scapula has a dramatic cleft that is straight margined on its left (lateral) margin and shows jagged fracture and wastage of bone on its right (medial) margin. It progresses a full inch and a half or more downward posteriorly. The Humerus has a deep lateral transverse incision with slight chipping, deeper in the posterior aspect than the anterior. The skull is highly fragmented and bears fractures radiating from straight margin sites of trauma. The causative wounds are medium in width (3.5 mm) but very long (one runs from the most superior aspect of the right parietal, through the entirety of the left parietal at a diagonal and exits the anterior/inferior left parietal with fragmentation/wastage there and a nearby notch on the superior left zygomatic. There are three blows to this side of the skull (left), the one described is clearly the largest. Its radiating fractures end in those of the others or in bone sutures of the vault creating large triangular or irregular fragments. These blows show some wastage, biased toward the anterior aspect of each, with no evidence of crushed margins, but instead coarse striations. Which two types of trauma are indicated? What does the nature of the wounds indicate might be a likely implement? What does the order of trauma indicate about the positioning of the perpetrator and victim in this context?
The type of trauma that are indicated are both complex and chronic traumas.
What is trauma?Trauma can be defined as the serious event that can negatively affect the emotional, physical and mental being of an individual.
From the excerpt given, the two types of trauma represented are:
Chronic trauma: This is the type of trauma that is severe or very serious. Example is the fragmented skull and separation of the clavicle neatly in half mid-diaphysis.Complex trauma: This occurs when there is exposure to numerous events that causes trauma.The nature of the wound indicates that the cause would be of direct force from blows.
The positioning of the perpetrator and the victim according to the order of the trauma is that both of them where involved in a fight.
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2. Why is an amniotic egg an evolutionary leap for reptiles? 1It allowed animals to move away from water as a requirement for reproduction and become completely terrestrial. 2 It allowed for many offspring to be made at the same time. 3 It allowed female reptiles to lay their eggs and leave the young to fend for themselves. 4It allowed for asexual reproduction by females only.
It allowed animals to move away from water as a requirement for reproduction and become completely terrestrial. Option 1.
Evolutionary advantage of the amniotic eggThe amniotic egg enables organisms to live their lives entirely away from water.
Prior to the evolution of the amniotic egg, the egg being laid by animals cannot survive on land. Also, the fertilization of the eggs requires water.
The amniotic egg is equipped with features that enable it to survive conditions on land. The external shell and the amniotic fluid protect the embryo from mechanical damage and dehydration. Gaseous exchange and waste excretion of the embryo are taken care of by the allantois and the chorion.
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