Blood smears are used in the diagnosis of malaria and African sleeping sickness.
What are blood smears?Blood smears are stained thin layers of blood on microscope slides. They are usually prepared for examination under the microscope.
Blood smears are useful in checking the presence of parasites in blood samples.
Malaria is caused by a protozoa parasite under the genus Plasmodium while African sleeping sickness is caused by Trypanosoma brucei.
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Who was the first to model the sun as the center of our universe, or the heliocentric theory?
Question 2 options:
Kepler
Copernicus
Ptolemy
Brahe
Answer:
Copernicus
Explanation:
Answer:
The answer is Copernicus.
Explanation:
Nicolaus Copernicus was a Renaissance polymath, active as a mathematician, astronomer, and Catholic canon, who formulated a model of the universe that placed the Sun rather than Earth at its center. In all likelihood, Copernicus developed his model independently of Aristarchus of Samos, an ancient Greek astronomer who had formulated such a model some eighteen centuries earlier.PLEASE HELP FAST
Upwellings return nitrates to the surface of the ocean.
True
False
Answer:
True
Explanation:
I think search it up tho
Ecosystems are dynamic; they are always changing, and most changes occur naturally over time. However, natural disasters and human activities may dramatically alter an ecosystem.
A. True
B. False
Answer:true
Explanation:
its true bc humans cause lots of damage to ecosystems whether its littering or simply making certain animals extinct
10) A species is considered introduced when its transport into an area outside of its native range is human mediated. Introductions by humans may be either intentional or accidental. In the U.S. many
economically important species have successfully been introduced and managed: they have not become invasive species. Identify the statement that is NOT CORRECT regarding the positive effects
of
introduced species
A) All Livestock species except the American bison and the turkey are introduced species to North America.
B) Thomas Austin, a British landowner had rabbits released on his estate in Victoria, Australia because he missed hunting them.
Eliminate
Species, such as the wolf, are reintroduced because it has become locally endangered or extinct and this is done in the interest of conservation
D) Many plants, such as the Norway maple and the Japanese maple, have been introduced with the intent of aesthetically improving public recreation areas of private
properties
Answer:
The introduction of new species in the new area make the specie invasive if there is no predator is present in that ecosystem because the predator helps in the controlling of the population of that invasive species. The big example of invasive species is rabbit in the Australia where rabbit become invasive when there is no predator is present in that region so they increase in population and destroy all vegetation of that region. So if there is no predator of a newly introduced species, it become invasive in future.
Explanation:
Are bacteria and viruses types of diseases?
Answer:
Technically, no. But note that these can both cause diseases.
What is a deep, underground water supply that has accumulated over a long period?
groundwater
surface water
aquifer
reservoir
Why if marathon runners start too quickly are unlikely to finish the race
Answer:
The marathon runners likely will get too winded out!
Explanation:
A marathon is a long-distance dash (roughly 26.2 miles!) If you walked that distance at an average speed it will take roughly you 8 and a half hours. Think about it let's say the runners dashed the first 5-10 miles as fast as they can, just imagine how tired they would be. They might faint or something else that might make the runners have to stop running the marathon. If the runners ran the marathon at more of a jogging pace, it's less likely for them to faint making it more likely for the runners to finish the race!
Explain the ‘Central Dogma’
Answer:
It's an explanation in molecular biology, of the flow of genetic information provided in a biological system.
art B: Analyze and Extend
Question 1
Does your MyPlate Plan match your actual food intake? Explain your
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A2
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Based on the information, the MyPlate plan correctly matches with my food intake (consumption).
What is MyPlate?MyPlate can be defined as an online resource (website) that is designed and developed to provide recipes, cookbooks, dietary guidelines, and healthy eating habits for people, over a specific period of time.
According to MyPlate guidelines, the following dietary guidelines are to be adopted:
Grains should make up about one-fourth (¼) of a diet.Fruits should make up less than one-fourth (¼) of a diet.Protein should make up about one fourth (¼) of a diet. Vegetables should make up more than one-fourth (¼) of a diet.Read more on MyPlate here: https://brainly.com/question/1778114
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On land, nitrogen-fixing bacteria convert nitrogen from the atmosphere into ammonia. Other kinds of bacteria then convert the ammonia into nitrates that plants can use. How does this part of the nitrogen cycle on land compare to the process that occurs in the ocean?
A. Plants convert nitrogen into ammonia, which animals convert to nitrates.
B. Plankton, not bacteria, convert nitrogen into ammonia.
C. Plants convert nitrogen directly into nitrates.
D. Plankton, not bacteria, convert ammonia into nitrates.
Answer:During nitrification, ammonia (NH3) is oxidized and converted to nitrite and then to nitrate. This process is carried out by chemosynthetic bacteria (also known as nitrifying bacteria). That is, the energy released during nitrification is used to synthesize organic matter.
2. Denitrification occurs when bacteria in the soil, called denitrifying bacteria, use nitrates and convert them to nitrogen gas. Denitrification ensures that nitrogen is returned to the atmosphere.
3. Atmospheric nitrogen is fixed primarily with the help of bacteria. These bacteria act by forming nodules in the cortical areas of the roots of these plants, where they remove atmospheric nitrogen and convert it to the ammonia (NH3) used by the plants.
Explanation:
Answer: The correct answer is D. Plankton, not bacteria, convert ammonia into nitrates.
Explanation: Confirmed correct.
Increasing and improving aquaculture will:
A) pollute Earth's oceans.
B)improve food security by providing a more resource-efficient protein source.
C) release large amounts of carbon dioxide into the atmosphere.
D) increase nutrients in fruits and vegetables.
release large amounts of carbon dioxide into the atmosphere.
If a cell had 12 chromosomes at the beginning of meiosis ii, how many would each daughter cell have after the completion of meiosis ii? 12 6 18 24
If a cell had 12 chromosomes at the beginning of meiosis II, each daughter cell would possess 12 chromosomes after the completion of meiosis II as well.
What do you mean by Chromosomes?Chromosomes may be defined as thin thread-like structures that contain genetic information associated with organisms.
After the completion of meiosis II, the four daughter cells are formed which are haploid in nature and contain a single copy of each chromosome.
So, if 12 chromosomes are there at the beginning of meiosis II, all the resultant four daughter cells possess a single copy of all the 12 chromosomes.
Therefore, it is well described above.
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HELP ASAP WILL GIVE 10 POINTS PLEASEEE two populations of foxes are prevented from mating only because they live on two opposite sides of the Mississippi river this situation is a example of
a geographic isolation
b reproductive isolation
c natural selection
d adaptive radiation
Answer:
A geographic isolation
Answer:
A: Geographic isolation
is salmon and shark are the same
Answer:
No they are not the same...
Explanation:
Answer:
They are not the same
Explanation:
PLEASE MARK ME AS BRAINLIEST
Mosquitoes can carry and transmit many diseases to humans. In the past, the insecticide DDT was heavily used to reduce mosquito populations in order to reduce instances of disease transmission. However, after some time, mosquito populations developed a resistance to DDT, which made the DDT less effective in reducing mosquito populations.
Based on what you’ve learned about natural selection, in 3–5 sentences, describe how mosquitoes may have come to develop this resistance.
Answer:
After mosquitoes in a population are exposed to doses of insecticides that are too weak to kill them, mosquitoes may develop resistance to the active ingredient(s). This makes the use of surveillance-based targeted mosquito control of the utmost importance.Explanation:
The feather from which bird was most commonly used to make quill pens?.
Answer:
Goose feathers
Explanation:
Goose feathers were the principal source of quills. Quill pens were traditionally made from goose feathers with the consensus being that they were stronger and larger than other birds.
I hope this helps!
what is the most likely role of the pores in cell membrane?
Answer:
The membrane pores and proteins are responsible for many specialized functions; some act as receptors that allow the cell to respond to external signals, some are responsible for the selective transport of molecules across the membrane, and others participate in electron transport and oxidative phosphorylation.
Explanation:
i hope this helps itll come easier for you eventually
Lab: Exercise and Homeostasis
A lab report can be defined as a summary of the outcomes of an investigation (in this case homeostasis).
What is the purpose of research?The purpose of research is to try to answer to a proposed explanation (hypothesis) about a particular issue from the real world.
In this case, our working hypothesis may be associated with the internal state of equilibrium (homeostasis) of organisms.
In conclusion, a lab report is a summary of the outcomes of an investigation (in this case homeostasis).
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Which type of hormones act on other endocrine glands to stimulate secretion of hormones produced by the target gland?.
Answer:
ACTH, gonadotropins, and TSH
Explanation:
ACTH stimulates the adrenal cortex to produce corticosteroid hormone
Is deforestation a sudden or gradual change?
diagram to show how the parts of the
meadow are related. Fill in each empty box with a description of the living thing or
а
group of living things: for example, one grass plant. Fill in the blanks with the terms
abiotic, biotic, community, ecosystem, organism, and population. You may use some
Cerms more than once.
Passage
A group of students is studying the types of plants that grow in a meadow
next to their school. The meadow is mowed regularly, but it does not get any
water other than rainfall. The meadow has several kinds of plants that are
typically found in a grassland ecosystem. The plants include grass and clover.
But there aren't any trees. The meadow has insects, including ants.
Earthworms live in the soil. Garter snakes and mice also live in the meadow.
The ecosystem in the meadow consists of the biotic factors such as grass, Garter snakes, and mice, as well as the abiotic factors such as sunlight and water.
What is an ecosystem?A ecosystem is a self-supporting system consisting of biotic and abiotic factors interacting together to support life.
The biotic factors refers to all living things in that ecosystem such as plants and animals.
The abiotic factors are the non-living components of the ecosystem such as sunlight, water, soil, air, etc.
Therefore, the ecosystem in the meadow consists of the biotic factors and the abiotic factors.
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Based on their names, you know that the baboons papio annubis and papio cynocephalus do not belong to the same.
Answer:
species
Explanation:
Papi is the genus while the 2nd word is the species
I NEED THE ANSWER ASAP WILL MARK BRAINLIEST!!!! Hunting and habitat destruction have led to a decline in the cheetah population, and therefore a decrease in genetic variation within the cheetah population. What evolutionary mechanism most likely has contributed to this decrease in the population’s genetic diversity?
a. Gene flow
b. Mutation
c. Genetic drift
d. Recombination
The evolutionary mechanism that most likely has contributed to this decrease in the population’s genetic diversity is genetic drift.
What is genetic drift?Genetic drift is an overall shift of allele distribution in an isolated population, due to random fluctuations in the frequencies of individual alleles of the genes.
Genetic drift is one of the contributing factors of decrease in genetic variation among a population of organisms.
Therefore, the evolutionary mechanism that most likely has contributed to this decrease in the population’s genetic diversity is genetic drift.
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Please help quick. Fill in the blanks
Answer:
Nucleus
Ribosome
mRNA
Protein
Sequence (?)
Functions
Explanation:
The hormone(s) synthesized in the meristematic tissue of the plant shoot and root is/ are
I. abscisic acid
II. auxin
III. cytokinin
A. I only.
B. II only.
C. I and II.
D. II and III.
note: explain why?
A phytohormone Auxin is synthesized in the meristematic tissue of the plant shoot and root.
What do you mean by Meristematic tissues?Meristematic tissues may be defined as cells of plants that are competent for dividing indefinitely and giving rise to similar cells or to cells that differentiate to produce the definitive tissues and organs.
Auxin promotes stem elongation. It is synthesized in the area of shoot and root apical meristem that initiates the development of leaves and roots respectively.
Therefore, a phytohormone Auxin is synthesized in the meristematic tissue of the plant shoot and root.
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Angela, one of your classmates, is concerned about the decline of the Emperor Penguin population and the decline in biodiversity that could occur in the Antarctic peninsula. What part of her ecological footprint can she reduce to most directly help ease her personal impact on these concerns? Use the information in the table to help you answer the Los question. How Human Actions Can Help the Environment Action Effect on Environment Decreasing water usage Ensures that there are adequate water supplies for everyone Recycling Reduces use of landfills; reduces extraction of minerals from Earth's crust; reduces use of other resources Reducing burning of fossil fuels Reduces amount of greenhouse gases in the air; slows global warming and climate change (A) Reduce trash generation by recycling more. (B) Install a more efficient showerhead and faucet to decrease her water usage. (C) Bike to school instead of driving to reduce pollution from fossil fuels. (D) Since humans do not live in Antarctica, our ecological footprints do not affect these penguins.
Answer:
c
Explanation:
global warming is serious issue to deal with
Which biome would be found furthest north?
Answer:
The Arctic Tundra Biome
Explanation:
can someone explain how impulses r transmitted at synapses
Impulses are transmitted through the help of neurotransmitters at the synapses.
What are synapses?Synapses are spaces at the neuronal junctions which are located between the muscle and the nerve cell.
Impulses arriving from a nerve cells usually crosses these spaces to the next nerve or muscles.
The generation of action potentials leads to the release of chemical messengers called the neurotransmitters.
These chemicals diffuse across the synapse (the gap between the two neurons).
The chemicals bind with receptor molecules on the membrane of the second neuron.
Therefore, Impulses are transmitted through the help of neurotransmitters at the synapses.
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Are chemical compounds that contain carbon and hydrogen atoms called petrochemicals?
Answer:False
Explanation:Fossil fuels are the energy-rich substances
Proteins help the body build new tissue, repair damage cells, and produce energy.
true or false
