A landscaper sprays a lawn with a pesticide that is 96% effective. If there are around 50 grasshoppers living on the lawn before the pesticide application, how many are likely to survive the pesticide?
A) 0
B) 2
C) 5
D) 10
Answer:
10
Explanation:
10
While viewing a water sample under a microscope, you observe a single cell. Which of the following observations could you use to
determine if the cell is prokaryotic or eukaryotic?
A.
The cell contains genetic material.
B. The cell contains cytoplasm.
C. A flagellum is present.
D.
The contents are surrounded by a cell wall.
E.
The cell's DNA is encapsulated in a nucleus.
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Submit
Answer:
E. The cell's DNA is encapsulated in a nucleus.
Explanation:
There are no membrane bound organelles present in a prokaryotic cell. Nucleus is a membrane bound organelle so it is absent in a Prokaryotic cell so it is an evidence that cell is Eukaryotic cell.
While other features mentioned in the question are common both in prokaryotic and eukaryotic cell.
The image below shows a group of meerkats. Meerkats live in habitats that are very dry, hot, and sandy.
Which structural adaptation most likely helps the meerkats survive in their habitats
A.) Meerkats have flexible necks, so they can reach tree leaves for food.
B.) Meerkats have sticky tongues, so they can catch insects to eat.
C.) Meerkats have sharp claws and powerful front legs, so they can dig to get cool.
D.) Meerkats have long, curly tails, so they can climb tall trees
Answer:
i am pretty sure its C
Explanation:
Meerkats are specially adapted to living in the harsh desert environment. Dark patches around their eyes help them be effective lookouts by reducing the glare of the sun, much like a baseball player who paints dark lines beneath his eyes. Their eyes also allow them to take in a wide angle view of the scene. This helps prevent predators from gaining an advantage by sneaking up.
Meerkats also possess special adaptations to help them burrow. Their eyes have a clear protective membrane that shields them from dirt while digging. Their ears also close tightly to keep dirt out.
These are just some fact for them where it says that they dig so probbably it is C.
After a 25-year. 95% of the ecosystem was covered by melaleuca. What would be the likely impact of this on wildlife population?
Answer:
The trees grow into immense forests, eliminating all other vegetation. They form impenetrable thickets, displacing native vegetation and reducing the
value of habitats for wildlife. Wildlife is down to melaleuca, birds, bats and bees. Biodiversity is reduced.
Explanation:
(I NEED THIS ANSWERED QUICKLY! I WILL GIVE BRAINLIEST TO FIRST CORRECT ANSWER!)
An earthworm is moving at a rate of 1 centimeter per second while traveling in a straight line. Therefore, the earthworm's motion is an example of _____. A. speed only B. velocity only C. both speed and velocity
Answer:
A. speed
Explanation:
How do organisms living in the intertidal zone use byssal hair?
A. As a net to help capture food
B. As an anchor against tidal action
C. As protection against harsh sunlight
D. As a filter to remove salt from water
Answer:
B) As an anchor against tidal action
Explanation:
Byssal hairs (or threads) are used to anchor organisms to rocks and other solid surfaces to protect them from wave shock (tidal action).
These hairs/threads stretch out in many directions to hold the organism in place. Mussels are an example of an organism that uses byssal threads.
[This answer was pasted from another question I also answered. You can find it here: https://brainly.com/question/12319732 As I said, the original answer was also written by me.]
Answer: It’s B
Explanation:
<. INICOUNIC
• Group 6 Match the synapse to the receptor type in effector cells
26. Neuromuscular junction
Adrenergic
27. Parasympathetic effector synapse
Muscarinic
28. Sympathetic effector "synapse"
Nicotinic
Neuromuscular junction - Nicotinic
Parasympathetic effector synapse - Muscuranic
Sympathetic effector "synapse" - Adrenergic
Explanation:
Neurotransmitters transmit the electric signal from the neuron to another neuron or an effector cell which is the target cell like the muscles or the glands. Receptors are transducers which connect with the external and internal environment and carry the nerve signals.
The neuromuscular junction refers to the synaptic connection between a nerve cell and a muscle cell. The primary receptor at the neuromuscular junction is the nicotinic acetylcholine receptors which respond to acetylcholine neurotransmitters.
The parasympathetic nervous system works with muscuranic receptors which are activated by acetylcholine. These receptors transducts the neurosignals (chlorinergic) in the parasympathetic end organs.
The sympathetic nervous system is associated with the adrenergic receptors and activated by epinephrine or norephinephrine and controls blood flow in the vessels.
Why are oil coal and natural gas not found them evenly distributed on earth?
The amount of oil, coal, and natural gas reserves on Earth is not distributed evenly because the amount of plants and animals buried earlier in sedimentary rock layers determined the amount of oil and gas reserves.
What is the importance of oil and coal?Oil and coal are fossil fuels that are vital to today's society, and they are formed when heat and pressure cause these remains to be transformed into hydrocarbons, which are the main components of oil and natural gas. These sedimentary rock layers are found in areas that were once covered by oceans or seas, such as coastal regions and deltas, and after many years, they become fossil fuels.
As a result, the amount of oil, coal, and natural gas reserves on Earth is not distributed evenly because the amount of plants and animals buried earlier in sedimentary rock layers determined the amount of oil and gas reserves.
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Final answer:
Oil, coal, and natural gas are unevenly distributed because their formation required specific geological conditions that are only found in certain areas. Fossil fuels take millions of years to form and are being depleted much faster than they are replenished, leading to varying degrees of scarcity across different regions of the world.
Explanation:
The uneven distribution of oil, coal, and natural gas on Earth is due to a complex set of geological processes. Fossil fuels are the remains of ancient organisms that were subjected to intense heat and pressure over millions of years. For oil to form, there needs to be just the right biological conditions to produce sufficient plankton, coupled with the correct geologic conditions to preserve and transform this organic matter into petroleum. This process takes a million years or more.
Coal is relatively more abundant and formed from ancient swamp vegetation, while oil and natural gas originated from marine microorganisms. Oil deposits are frequently found in ancient shallow seabeds where organic material was effectively sequestered and transformed over time. Regions like the province of Alberta in Canada are rich in these resources due to their geological history and current explorations are focused on extracting these fuels from tar sands and other reserves.
The extraction and use of these fuels vary; coal is mined and used primarily for electricity generation due to its solid state, while oil and natural gas require different extraction methods, including conventional drilling and hydraulic fracturing. Moreover, due to the accelerated rate of consumption compared to the natural replenishment rate of these resources, they are not only unevenly distributed but also rapidly depleting, underscoring the need for conservation and alternative energy sources.
12. Compare a plant and animal cell?
Which change of state occurs at 0 °C when heat energy has been removed from liquid water? A. boiling B. melting C. freezing D. condensing
Answer:
Melting
Explanation:
The information presented above suggests that antibiotic resistance is the result of
Answer:
Antibiotic resistance is the result of regular use of same antibiotics for the controlling of harmful microorganisms. Microbes like bacteria got resistance against the medicine used for it and medicine is not helpful in the removal of bacterial disease. When bacteria got resistance against antibiotics, the duration of disease prolonged and sometimes dealth occurs.
When gametes combine to form a zygote, the chromosomes number of the zygote is now referred to as
The chromosome number of a zygote formed when gametes combine is referred to as diploid, having two sets of chromosomes, one from each parent. Human zygotes have a total of 46 chromosomes. Errors in chromosome numbers can lead to aneuploidy conditions such as monosomy and trisomy.
Explanation:When gametes combine to form a zygote, the chromosome number of the zygote is referred to as diploid. A zygote is formed when a sperm cell and an egg cell, both of which are haploid with a single set of chromosomes, fuse during fertilization. The resulting zygote contains two sets of chromosomes, with one set coming from each parent, making it diploid. A human zygote, for example, contains two sets of 23 chromosomes, for a total of 46 chromosomes (23 pairs). The zygote then undergoes numerous divisions through the process of mitosis to develop into a multicellular organism.
Additionally, it is important to note that errors in the number of chromosomes, such as the ones caused by a diploid gamete joining with a haploid gamete can lead to aneuploidy. Common examples include conditions such as monosomy and trisomy, where individuals have either one less or one extra chromosome, respectively. Trisomy of chromosome 21, for instance, results in Down Syndrome, a condition characterized by a set of physical and developmental traits.
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119. Pulmonary gas exchange occurs in the
networks of thin-walled
This exchange takes place using the process of
of the lungs. These are grape-like clusters surrounded by
(2 words)
These are grape-like clusters surrounded by blood capillaries
Explanation:
The alveoli (grape-like structures) are surrounded by a network of blood capillaries. They supply blood for decarbonization and oxygenation. The large network provides a large surface area for this gaseous exchange. In addition, the alveoli are moist to help increase the rate of diffusion of the gases in and out of the blood capillaries.
does anybody know the answer to these?
Answer:
Answer is B if we have the same one
Explanation:
Fossil fuels are part of which of the following cycles
Answer:
Explanation:
Carbon that is a part of rocks and fossil fuels like oil, coal, and natural gas may be held away from the rest of the carbon cycle for a long time. These long-term storage places are called “sinks”. When fossil fuels are burned, carbon that had been underground is sent into the air as carbon dioxide, a greenhouse gas.
Fossil fuels are part of the carbon cycle.
Explanation:The carbon cycle is the natural process by which carbon atoms circulate through the Earth's atmosphere, oceans, land, and living organisms. It involves carbon dioxide absorption by plants, respiration, decomposition, fossil fuel combustion, and ocean carbon exchange, influencing climate and ecosystems.
Fossil fuels are part of the carbon cycle. The carbon cycle is the process by which carbon is continuously cycled through the Earth's atmosphere, oceans, and land. Fossil fuels, such as coal, oil, and natural gas, are formed from the remains of ancient plants and animals that died millions of years ago. When these fuels are burned for energy, carbon dioxide is released into the atmosphere, contributing to climate change.
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Which of the following scenarios would provide the best evidence that human traits are a result of lifestyle choices?
A.
Matt had been naturally right-handed since birth. In high school, he decided to start throwing left-handed after reading that there was a shortage of left-handed pitchers in the major leagues. Matt is now left-handed.
B.
Lisa and Anita are identical twin sisters. Lisa went grew up in New York; Anita grew up in Florida. Both sisters used to catch cold easily, but now, Lisa does not. Both sisters used to sunburn easily, but now, Anita does not.
C.
Tanya's mother has blonde hair. Tanya's father has black hair. Tanya's hair is brown.
D.
Arnold's parents and grandparents all have heart disease. Although Arnold has always exercised, avoided unhealthy foods, and followed doctor's instructions, he also has heart disease.
Which is an example of a scientific hypothesis?
1 How will climate change affect forests and plants on dry land?
2 In horizontal rock layers, the oldest layer is at the bottom.
3 The outer layer of Earth is divided into “plates” that move across Earth's surface.
4 If salt is added to water, then the water will take longer to freeze because the salt causes more heat in the
mixture.
Answer:
number 4
Explanation:
it is the only scientific statement/hypothesis.
D. If salt is added to water, then the water will take longer to freeze because the salt causes more heat in the mixture.
Soil pollution is a problem only in areas with a lot of farms.
True
False
Answer: False
Explanation:
It can cause problem other places.
Answer:true
Explanation:
Which statement correctly describes how a protein is formed.
A- Amino acids are bonded together in a long chain to form a new molecule.
B- A monosaccharide bonded to a side chain is broken apart.
C- A molecule containing glycerol bonded to three fatty acids is broken apart.
D- A nitrogenous base, a sugar, and a phosphate group combine to form a new molecule.
how much of the ocean is discovered
Answer:
5%
Explanation:
Just 5 percent of Earth's oceans have been explored and charted – especially the ocean below the surface.
You played hard in Pe today and didn’t get a chance to rehydrate after class. You fell tired and sluggish. How does your body regulate your dehydration? List five body systems that interact with the situation
Answer:
Respiratory systemNervous systemCirculatory systemIntegumentary systemEndocrine systemExplanation:
During excessive hard work or sports, the respiratory system acts to provide sufficient oxygen for energy supply (ATP) - a process takes place in mitochondria. At the very beginning, the respiratory system is active. If the person doesn't intake sufficient water, he will feel tired because of heavy breathing that increases body temperature and affects metabolic reactions. A supply of water would help decrease the respiration need and so support other systems.
The nervous system (hypothalamus) regulates the body temperature which is necessary for metabolic reactions taking place within the body, i.e. homeostasis. During and after exercise, the water intake was not sufficient, this means that the hypothalamus would work to maintain the temperature as well as other metabolic mechanisms. In the case of less water intake, the nervous system would be in stress.
The circulatory system acts to transport blood and oxygen to all parts of the body. During sports activities, the oxygen supply would be high to maintain energy supply. This takes place with the combined action of the circulatory system and respiratory system. For optimal functioning, the circulatory system needs fluids (water) intake because sufficient water is already lost during sports.
The integumentary system is the system that directly protects the body from damages including dehydration. Therefore, in this case, it will be highly active.
The endocrine system consists of glands that produce hormones to control body metabolism. The body metabolism, as mentioned before, is driven through water availability. The reduced water in the body would also put the endocrine system under pressure.
Renal, endocrine, cardiovascular, integumentary, and nervous systems regulate hydration, adjusting urine output, hormone release, blood pressure, sweating, and thirst.
When your body is dehydrated, several physiological mechanisms work together to regulate hydration levels and maintain homeostasis. Here are five body systems involved in this process:
1.Renal system (Urinary system):The kidneys play a crucial role in regulating water balance by adjusting the volume and concentration of urine produced. When dehydrated, the kidneys conserve water by reducing urine output, reabsorbing more water back into the bloodstream.
2.Endocrine system:Hormones such as antidiuretic hormone (ADH) and aldosterone are released by the pituitary gland and adrenal glands, respectively, in response to dehydration. ADH increases water reabsorption in the kidneys, while aldosterone promotes sodium reabsorption, leading to water retention.
3.Cardiovascular system:Dehydration can lead to decreased blood volume and increased blood osmolality. The cardiovascular system responds by increasing heart rate and constricting blood vessels to maintain blood pressure and ensure adequate perfusion to vital organs.
4.Integumentary system:The skin helps regulate body temperature through sweating. Dehydration can impair the body's ability to sweat efficiently, leading to decreased heat dissipation and potential overheating.
5. Nervous system:Dehydration can affect cognitive function and mood. The brain detects changes in hydration status and triggers thirst sensations to encourage fluid intake. Additionally, dehydration-induced fatigue and sluggishness can impact motor coordination and reaction times.
These body systems work in concert to detect and respond to dehydration, helping to restore fluid balance and maintain optimal physiological function.
Most precipitation
a. evaporates before reaching the ground
b. falls on forests
c. is in the form of snow
d. falls on oceans and lakes
Answer:
a. evaporates before reaching the ground
Explanation:
Answer:
A, evaporates before touching th ground
Explanation:
Some scientists believe that global warming will bring about extreme weather.
Please select the best answer from the choices provided
ОО
T or F
Answer: True
Explanation:
Over past decades the scientists have found evidence that indicates that the increase in the change of climate may lead to an increase in the frequency and intensity of the events. This may contribute to the events like extreme heat, rainfall and can even lead to disastrous events like hurricanes.
For other events like tornadoes, drought periods the evidences like little or no rain have been found.
The scientists have also found that the change in the global average temperature is because of human influence. Climatic attribution has been developed so that the scientists can identify and quantify that can measure the human-caused climatic changes resulting in the extreme weather.
Inflammation is
A) a repair process that restores normal function to injured tissue.
B) a fever.
C) an infection of a wound.
D) a process that clears damaged cells and dangerous microorganisms from an injury.
E) the process of blood clotting.
Answer: D) a process that clears damaged cells and dangerous microorganisms from an injury.
Explanation: Inflammation is a local response to cellular injury that is marked by capillary dilatation, leukocytic infiltration, redness, heat, and pain and that serves as a mechanism initiating the elimination of noxious agents and of damaged tissue.
Answer:
Inflammation is a repair process that restores normal function to injured tissue. Tissues are repaired when inflammation occur
Explanation:
Janet is studying a population of genetically-identical individuals. Janet can conclude that these organisms ____?
A. do not reproduce.
B. reproduce asexually.
C. reproduce sexually.
D. are multi-cellular.
Answer:
B. reproduce asexually.
Explanation:
Janet can conclude that these organisms reproduce asexually. So, the correct option is B.
What is Asexual reproduction?Asexual reproduction refers to a type of reproduction where a child is born to a single parent. The newly created people are copies of their parents since they have the same genetic makeup and physical characteristics.
Both multicellular or unicellular species can reproduce asexually. There will be no gamete fusion involved in this procedure, as well as the number of chromosomes will remain the same. With the exception of specific situations where there is a possibility that a rare mutation will occur, it will inherit the very same genes as the parent.
Therefore, the correct option is B.
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Adélie penguins and crabeater seals both feed on krill.
Which term best describes the relationship between Adélie penguins and crabeater seals?
parasitism
competition
mutualism
predation
Answer: competition
Explanation:
Since adélie penguins and crabeater seals feed on the same organism, krill, they would compete for the most kill all the time. This relationship is known as competition.
Furthermore, since adélie penguins and crabeater seals are predators and are of different species, the competition is known as inter-specific competition.
♡ The Question ♡
-Adélie penguins and crabeater seals both feed on krill.
Which term best describes the relationship between Adélie penguins and crabeater seals?
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♡ The Answer ♡
-Competition!
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♡ The Explanation/Step-By-Step ♡
-No Explanation/Step-By-Step provided!
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♡ Tips ♡
-No tips provided!
Which of the following describes asexual reproduction?
fertile offspring despite geographic isolation
one parent organism and no egg or sperm
two parent organisms and genetic exchange
infertile offspring through genetic exchange
Answer: One parent organism and no egg or sperm.
Explanation: Asexual reproduction only needs one parent, and they don't need sex cells.
Explanation:
Asexual reproduction is when single-parent give rise to several offspring, without the fusion of gametes.
One parent organism and no egg or sperm: Asexual reproduction takes place in simple organisms, and these organisms are not able to develop sex cells (egg or sperm).
In asexual reproduction single parent organism divide to produce several offspring and they are genetically identical to their parents as they reproduce without the involvement of another organism.
Hope it Helps!Explain why the genetic material in an offspring produced by sexual reproduction contains genetic material that is not identical to the genetic material of either parent
The genetic material in an offspring produced by reproduction contains genetic material that is not identical to the genetic material of either parent as both parents contribute half of the new organism's genetic material, the offspring will have traits of both parents, but will not be exactly like either parent.
What do you mean by genetic material?"Any material of plant, animal, microbial or other origin that carries genetic information and that passes it from one generation to the next is called genetic material."
What do you mean by offspring?"Offspring is the product of the reproductive processes of a person, animal, or plant."
What is reproduction?"Reproduction means making a copy, a likeness, and thereby providing for the continued existence of species."
What is trait?"Trait is a a distinguishing quality or characteristic."
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Describe an example of an octopus learning
Answer: Octopuses and their kin (cuttlefish and squid) stand apart from other invertebrates, having evolved with much larger nervous systems and greater cognitive complexity.
The majority of neurons in an octopus are found in the arms, which can independently taste and touch and also control basic motions without input from the brain.
Octopus brains and vertebrate brains have no common anatomy but support a variety of similar features, including forms of short- and long-term memory, versions of sleep, and the capacities to recognize individual people and explore objects through play.
Explanation:
How does plate tectonics affect climate?
Answer:
Plate tectonic shifts may add heat to the climate as well as increase chemicals such as carbon dioxide and sulfur dioxide.
Explanation: Tectonic shifts causes volcanoes and when erupts volcanoes expel heat and gases into the atmosphere.
Answer:
By changing ocean circulation.
Explanation:
I took the test.