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Answer:
The first yellow fever outbreaks in the United States occurred in late 1690s. Nearly 100 years later, in the late summer of 1793, refugees from a yellow fever epidemic in the Caribbean fled to Philadelphia. Within weeks, people throughout the city were experiencing symptoms.
Related Questions
Oxygenated blood exits the heart ______________, whereas oxygenated blood enters the ______________ of the heart
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Explanation:
12. During the process of photosynthesis, energy from the Sun is converted into A. chemical energy in the bonds of inorganic molecules B. chemical energy in the bonds of organic molecules C. enzymes used to produce inorganic molecules D. enzymes used to produce organic molecules
Eliminate and explain pls
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Answer:
Explanation:
A. Inorganic molecules are rarely present in the human body, and the products of photosynthesis only contain one inorganic molecule (a molecule without carbon), [tex]O_2[/tex].
B. This is correct because when looking at the photosynthesis equation you have [tex]H_2O[/tex] + [tex]CO_2[/tex] + Sunlight = [tex]C_6H_{12} O_6[/tex] + [tex]O_2[/tex] Now illustrating this conversion, the [tex]O_2[/tex] Was made from the breaking of the bonds, so no new bonding was formed, this is the only inorganic molecule. The organic molecule, glucose, or the C6H12O6, was made combining the ingredients H2O and CO2. In order to combine the components used to make the glucose, the energy from the sun helps with the exchange of electrons and facilitates the bonding to make the organic molecule glucose.
C. Sun energy can not be converted into energy used to create enzymes
D. Same as C
HELP ME PLS AND THANKS I DON"T KNOW THIS
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Answer:
B :)
Explanation:
Answer:
Dichotomous means divided into two parts. That is why dichotomous keys always give two choices in each step. In each step, the user is presented with two statements based on characteristics of the organism. If the user makes the correct choice every time, the name of the organism will be revealed at the end.
Therefore, your answer is A.
Hope this helps! (please pick as brainlyist)
which compound is orgaic
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Answer: organic compound, any of a large class of chemical compounds in which one or more atoms of carbon are covalently linked to atoms of other elements, most commonly hydrogen, oxygen, or nitrogen. The few carbon-containing compounds not classified as organic include carbides, carbonates, and cyanides.
The third level of cell organization is the ____.
Tissue level
System level
Organism level
Organ level
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What describes a scientific theory
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Answer:
A theory is a carefully thought-out explanation for observations of the natural world that has been constructed using the scientific method, and which brings together many facts and hypotheses. ... A scientist makes an observation of a natural phenomenon.Explanation:
Which is a negative effect of rising ocean temperatures? the drying out of fertile land and the formation of dust bowls the flooding of low-lying coastal areas the faster evaporation of water in the soil the decreased frequency of major storms
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Answer:
B- the flooding of low-lying coastal areas
Explanation:
just did the test on edge
The negative effect of rising ocean temperatures is the flooding of low-lying coastal areas. Details about ocean temperatures can be found below.
What causes rise in ocean temperature?Rise in temperature of the ocean occurs when the ocean absorbs most of the excess heat from greenhouse gas emissions.
Increasing ocean temperatures affect marine species and ecosystems. Some of the negative effects of increase in temperature is as follows:
It causes cause coral bleaching It causes flooding of low-lying coastal areas.Therefore, the negative effect of rising ocean temperatures is the flooding of low-lying coastal areas.
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Does cellular respiration occur in all living things?
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Answer:
yes it does
Explanation:
Cellular respiration occurs in the cells of all living things.
Which of these graphs represents the effect of temperature on the rate of photosynthesis? Explain your answer.
WILL MARK BRAINLIEST!!
Answers
Answer: A
Explanation:
In plants and other primary producers, photosynthesis is a biological mechanism that is vital to energy production. Energy-containing carbohydrates are derived from light, water and carbon dioxide in the form of glucose molecules.
The waste product oxygen is released as a result. Photosynthesis depends on many variables, including:
carbon dioxide concentration,
ambient temperature
and light intensity
It is a rate-limited reaction. Since photons or particles of light provide the energy required for the reaction, high intensities of light increase the photosynthetic rate. From the graph shown, as the intensity increases steadily, so does the rate- but at too high of an intensity, it ceases to affect the rate of photosynthesis, which becomes constant or plateaus.
Beyond this point, either the supply of carbon dioxide or the temperature limits the reaction. For instance, at high intensities tissues may even be damaged by high temperatures or heat.
Graph A represents the effect of temperature on the rate of photosynthesis.
Why is photosynthesis affected by temperature?Photosynthesis is a biological process that is essential to the synthesis of energy in plants and other primary producers. Light, water, and carbon dioxide combine to generate glucose molecules, which are the building blocks of energy-containing carbohydrates.
As a result, the waste product oxygen is emitted. Numerous factors affect photosynthesis, such as the amount of carbon dioxide present, the surrounding temperature, and the amount of light. It is a reaction with a rate constraint. High light intensities accelerate the rate of photosynthetic reaction because photons, or light particles, supply the energy needed for the reaction. According to the graph, the rate rises steadily as the intensity does, but at a certain point, the intensity stops having an impact and the rate of photosynthesis plateaus or becomes constant.
Beyond this point, the reaction is restricted by either the temperature or the carbon dioxide supply. For instance, at high intensities, heat or high temperatures may even harm tissues.
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Brain is considered as the centre of all senses,why?
Answers
Answer:
The human brain is the command center for the human nervous system. It receives signals from the body's sensory organs and outputs information to the muscles.
Answer:
It receives signals from the body's sensory organs and outputs information to the muscles
Explanation:
please help
20 points
77. Select the words from the word box below to complete the statements.
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Producers, like this plant, take in oxygen and release carbon dioxide during__________, just like animals and other living things
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Answer:
Producers, like this plant, take in oxygen and release carbon dioxide during respiration, just like animals and other living things
Explanation:
Organisms use different types of adaptations to aid in their survival. Which of the following is an adaptation that would not help a lion to catch its prey?
a.
group hunting
b.
hyoid bone adapted for roaring
c.
camouflage
d.
keen eyesight
Answers
Answer:
B. Hyoid bone adapted for roaring.
Explanation:
The process of roaring is unrelated to helping a lion catch its prey unlike the other 3 adaptions which would allow for better success rates in terms of finding and catching prey.
Answer:B
hyoid bone adapted for roaring
Explanation:
EDGE 2021
It takes energy for an organism to produce a particular structure such as a stripe on a clover leaf that is otherwise plain.
Why might cyanide-producing clover produce striped leaves?
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Answer:
increases its ability to resist predation because the snails that eat it die
In general, two types of white clover can be found in a variety of habitats around the world. The first has plain green leaves, while the second produces cyanide as a defensive strategy against herbivores and signals its presence with white stripes on the leaves.
What are defensive behavior?Claws, teeth, disguising, poison, imitation, and adaptations such as echolocation are all common defense mechanisms. Some are uncommon but extremely effective.
A nonhuman animal's behavior to avoid of been hurt or killed by another.
This could include defensive aggression against a potential predator or a member of its own species, from its own group or from another group, or animal escape actions to avoid the source of harm.
In general, two types of white clover can be encountered in a variety of habitats worldwide.
The first has plain green leaves, whereas the second, as a defensive mechanism against plant eating organisms, produces cyanide and signals its presence with white stripes on the leaves.
Thus, cyanide-producing clover produce striped leaves.
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What is the difference between permanent gases and variable gases in the atmosphere?
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Answer:
the difference is that permanent gases have larger residence times and Variable gases have shorter residence times
the difference between permanent gases and variable gases in the atmosphere is permanent gases are gases that have a very low dew point.
What are the characteristics of the atmosphere?The Earth's atmosphere is basically composed of a mixture of gases, being 78% Nitrogen, 21% Oxygen and 1% Argon. In addition, traces of carbon dioxide, water vapor and other gases are found, but in very small amounts.
In this way, permanent gases are gases that have a very low dew point.
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plant cell don't burst when placed in water because?
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Answer:
it absorbs the water
Explanation:
What would be the phenotype of a frog if yellow toes is dominant and the frogs genotype was Yy?
Yellow
Or
Not yellow
Answers
Yellow because if yellow toes is dominant and you have Yy then it will have yellow toes
in all organisms, certain genes are expressed at any given time while other genes are not. both prokaryotes and eukaryotes regulate gene expression at the transcription stage. however, the greater complexity of eukaryotic cells makes it possible for gene expression to be regulated at many other stages as well. the diagram below shows different stages at which gene expression may be regulated in eukaryotes.
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Answer:
The process of turning genes on and off is known as gene regulation. Gene regulation is an important part of normal development. Genes are turned on and off in different patterns during development to make a brain cell look and act different from a liver cell or a muscle cell, for examp
what kingdom is the spongy parenchyma cell in? describe the features of this kingdom. what are 2 other organisms that are in this kingdom?
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Answer: It is the plant kingdom. Two other items in this kingdom are roses and grass. Plants are predominantly photosynthetic eukaryotes of the kingdom Plantae. Historically, the plant kingdom encompassed all living things that were not animals, and included algae and fungi; however, all current definitions of Plantae exclude the fungi and some algae, as well as the prokaryotes.
Explanation:
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which of the following hormones produced in the anterior pituitary stimulates the production of progesterone and estrogen by ovaries and is needed for ovulation?
Answers
Luteinizing hormone stimulates the corpus luteum to produce progesterone, which is required to support the early stages of pregnancy, if fertilization occurs.
what are the role of Luteinizing hormone ?These hormone are released from ductless Endocrine cells which release their secretion i.e., hormones directly into blood.
The FSH (follicle stimulating hormone) is secreted by pituitary gland which helps in controlling menstrual cycle and stimulation of ovaries for egg production.
The hormone LH (Luteinizing hormone) is secreted from pituitary gland, helps in physical development and maintaining pregnancy.
Thus, both FSH and LH are produces by pituitary gland and their functions are to control menstrual cycle and maintaining pregnancy respectively.
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1. Describe the flow of energy from the sun to a producer, like grass, and then to a consumer, like a rabbit. Type your answer here:
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Explanation:
The Sun then provides energy to the grass through the process of photosynthesis. The rabbit eats the grass, and the rabbit absorbs its energy. Finally, the snake eats the rabbit, and it absorbs the rabbit's energy. Energy travels from the Sun and moves through the ecosystem with each consumer along the chain.
Where do the light-dependent reactions take place?
a. within the thylakoid membranes
b. within the mitochondria membranes
c. in the outer membrane of the chloroplasts
d. in the stroma of the chloroplast
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A, the thylakoid membranes
How did the Rosetta Stone help decipher hieroglyphics?
O A. matching images to Greek words
O B. providing the Egyptian alphabet
O C. translating common Roman trade words
O D. outlining a peace treaty between the French and English
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D . outlining a peace treaty between the French and English
the 5 physical factors that scientists use to develop ocean and seafloor
zones are
1
2
3
4
5
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Answer:
1. Light penetration
2. Distance from shore
3. Depth of water
4. Temperature
5. Amount of nutrients/salt
Explanation:
Oceanographers use various methods to determine vertical and horizontal zones in the ocean. First and foremost are the distance from the land and the depth of the water. These contribute to the other factors, such as temperature and light penetration. They also measure how much salt or nutrients are available at that zone, which plays a role in how much life is discovered in the location.
The photic and mesopelagic zones are mainly grouped by light penetration, while mesopelagic, abyssopelagic, hadalpelagic, benthic, and bathyal zone are categorized by depth and temperature. When looking at the pelagic zone, the neritic and the oceanic sections are differentiated by the distance from the land.
The leaves of peperomia plants develop roots and form new plants when they are placed in moist soil. Any leaf on the plant shown can produce a new plant. Which rwp terms describe this kind of reproductian? B. Vegetative C. Vascular
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Answer:
b. vegetative
Explanation:
VEGETATIVE REPRODUCTION = any form of asexual reproduction occurring in plants in which a new plant grows from a fragment/cutting of the parent plant
VASCULAR REPRODUCTION = reproduction of seedless vascular plants through unicellular spores instead of seeds
Answer:
SSTOP
Explanation:
A student observes the night sky in July with a telescope. The student does not see the constellation Canis Major.
Why is Canis Major missing from the night sky in July?
Canis Major moves around Earth.
Canis Major moves around Earth.
Canis Major moves around the Sun.
Canis Major moves around the Sun.
Earth rotates on its axis, and the Moon blocks Canis Major.
Earth rotates on its axis, and the Moon blocks Canis Major.
Earth orbits the Sun, and the Sun blocks Canis Major.
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Answer:
You can only see it in December through March
Explanation:
The Canis Major can only be seen during the Winter season.
Which of the following relationships may present harm to one of the organisms involved? I. Commensalism II. Parasitism III. Predation IV. Mutualism *
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Answer:
lll. Predation
I think this is right
What would be the genotype for a plant that is heterozygous for the trait above?
a-Gg
b-Green seed pods
c-GG
d-Yellow seed pods
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Answer:
a - Gg
Explanation:
heterozygous means different, and G and g are different.
Which figure is the percent of energy at which one trophic level generally flows to the next level?
1)10%
2)35%
3)50%
4)100%
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Answer:
Which figure is the percent of energy at which one trophic level generally flows to the next level 10
PLEASE HELP WILL MAKE MOST BRAINLIEST IF POSSIBLE LOOK AT PICTURE
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Answer:
CFC, water vaper, methane, carbon dioxide
Explanation: