Answer:
a the body shivers to generate heat
Question:
Which of the following is an example of positive feedback?
Answer: CORRECT (SELECTED)
A blood clot inducing more blood clotting.
Explanation:
Positive feedback loops amplify the starting signal. In this case, the clotting of blood stimulates more blood to clot.
when one gram of liquid at its boiling point is changed into water vapor
Answer:
One gram of liquid water changed into water vapor at its boiling point, energy is required called the heat of vaporization. Water has a heat of vaporization of 40.65 kJ/mol. Hydrogen bonding is present between water molecules so to break this hydrogen bond, heat energy is required.
Explanation:
Answer:
Energy is required called the heat of vaporization.
Explanation:
Water has a heat of vaporization of 40.65 kJ/mol. Hydrogen bonding is present between water molecules so to break this hydrogen bond, heat energy is required.
PLEASE HELP ME how do wildfires create conditions that can lead to mudslides?
Answer:
Fires lead to mudslides because burning can kills the plants' roots. Roots hold soil together, stabilizing the land and making it less likely to be swept away
What will the offspring look like if you crossed a tall pea plant TT with a short one TT )?
If you crossed a tall pea plant TT with a short one TT all the offspring will be tall.
Dominance is the phenomena in genetics where one allele (variant) of a gene on one copy of a chromosome obscures or overrides the impact of another allele (variant) of the same gene on the other copy of the chromosome. [1][2] Dominant refers to the first variant, and recessive to the second.
In both Mendelian inheritance and traditional genetics, dominance is a crucial idea.
No allele or its features are inherently dominant (phenotype). One allele of a given gene may be dominant over a second allele of the same gene, recessive to a third allele, and co-dominant with a fourth allele; the relationship between two alleles of a given gene of any function is strictly relative.
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Mesosaurus was a freshwater reptile whose fossil was found in the northwest part of South America and __________. Alfred Wegener used the placement of this fossil as scientific proof of his continental drift theory.
Mesosaurus was a freshwater reptile whose fossil was found in the northwest part of South America and the southeast part of Africa Alfred Wegener used the placement of this fossil as scientific proof of his continental drift theory .
Alfred Wegener amassed a plethora of data to back up his idea, including geological "fit" and fossil evidence. It is crucial to note that Wegener did not present the following particular fossil data to support his claim.
Wegener did not gather the fossils, but he drew attention to the concept of utilizing scientific documents saying that there were remains of species extant on several continents to support his argument.
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Which of the following have directly caused an explosive human population? (Choose all that apply.)
◾️food production
◾️lack of clean water
◾️better sanitation
◾️more effective medical care
Answer:
more effective medical care
Answer:
◾️food production
◾️better sanitation
◾️more effective medical care
Explanation:
These all help humans live longer, causing rising populations.
If a neurosurgeon directly stimulated parts of your somatosensory cortex, which of the following would you most likely experience
If a neurosurgeon directly stimulates the somatosensory cortex, the most likely experience would be the sense of being touched.
Somatosensory cortex is the part of the brain involved in receiving and processing of the information received from the senses of the body like touch, pain, temperature, etc. The region of the brain where the cortex is present in the parietal lobe.
Senses are the specialized organs of the body that make the individual aware of its surroundings. These senses act as receptors that receive the information from an external stimuli. There are 5 types of senses in human body: touch, vision, hearing, smell and taste.
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In the past 150 years, co, emissions have risen by nearly 50%. What has dramatically increased during this time that has led to this
increase in CO,?
Answer:
adfvadfbadfbadgbfz
Explanation:zdfbadadfadfa
What action would you recommend to the point guard?
a) Eat a sandwich
b) Eat something salty
c) Drink lots of water
d) Drink a maltose sports drink
Treatment of an abscess often requires that it be surgically drained because ______.
O the wall of the abscess prevents proper blood flow into the pus
O the wall of the abscess prevents proper elimination of wastes from the enclosed pus
O the wall of the abscess prevents neutrophils from entering the pus and attacking the pathogens
O the wall of the abscess prevents macrophages from differentiating into monocytes in the pus
Because the abscess wall obstructs adequate blood flow through into pus, management of an abscess frequently necessitates surgical drainage of the abscess.
Which of the below is not an anti-infection chemical barrier?Instead of acting as a barrier, macrophages target pathogens once they have already entered the body. Physical barriers include mucus and epithelial tissue, whereas chemical barriers include saliva and urine.
What type of cell plays the most important role in immunity?The most significant of the three antigen-presenting cells, dendritic cells play a crucial role in the beginning of innate and adaptive immunity (see Section 1-6). Macrophages can directly mediate innate immunity and play a critical role in the effector component of the adaptive immunological response.
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Calculate the discharge of a stream that has a velocity of 300 m/s and is 25 m wide and 3 m deep.
Answer:
Discharge (Q) = Velocity (V) x Area (A)
Q = V x A
Q = 300 m/s x (25 m x 3 m)
Q = 22,500 m³/s
PLS HELPPPPPPPP PLS HELPPPP
Answer:
Lara uses more water
Explanation:
because Lara takes longer showers, uses the dishwasher more often, and keeps the water on while brushing her teeth while Mateo takes shorter showers which uses less water. Washing your hands and keeping the water off while brushing will consume less water as well.
A major point of understanding natural selection is that not all organisms in a
population get to reproduce. Consider the term fitness is used in biology. How does
this term relate to natural selection?
Answer:
Fitness enable organism to survive in the particular environment.
Explanation:
Fitness of organisms is the characteristics which able the organisms to survive in harsh environmental condition and in the process of natural selection. Organisms which are better suited to their environment will survive and reproduce in that particular environment which leads to increase in the population of the organisms. Organisms having more fitness have more chances to survive in that environment whereas those organisms having lower fitness, can't survive and removed from that environment.
What are the four reasons why Mendel choose garden pea for his experiment?
Mendel chose garden pea for his experiment because they have shorter life span, are bise-xual, self pollinating and have visible physical characteristics.
Mendel conducted a lot of experiments during his study in genetics. He considered garden pea ideal for his experiments for a number of reasons. The first reason being that garden pea has a short life span and because of this they are able to grow very quickly and are easy to maintain. The second reason is that they have visible physical characteristics which makes them easy to observe and study.
The other two reasons being that garden peas have bise-xual flowers and because of this, these garden peas are self-pollinating. They do not need another plant for pollination and can also easily cross pollinate.
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Identify two factors other than the wolf population that may influence the moose population
Answer:
Assuming this isn't multiple choice, the deforestation of plants will contribute to thier populations getting smaller, and the introduction of other animals that eat those plants will create competition
Diseases and environmental changes will affect the population of wolves other than the moose population.
What are the factors affecting population growth?How often an organism reproduces.The number of offspring of an organism.The presence or absence of parental care.How long an organism is able to reproduce.The death rate of offspring.DiseaseThus we can conclude that disease and environmental changes will affect the population.
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Does cyanide stop ATP production?
cyanide at low concentrations, acts as a mitochondrial activator and stimulatory bioenergetic factor. Its effects are associated with the stimulation of CCOx activity and an elevation of intracellular ATP, leading to a stimulation of cell proliferation.
Cyanide's blockade of complex IV depletes ATP, which leads to cell death. Cytochrome a3 that has been reduced cannot be reoxidized by oxygen. As a result, both cellular respiration and ATP generation are hindered, effectively depriving the cells, tissues, and ultimately the entire body of oxygen.
Electron transport chain is unable to pump electrons into the intermembrane gap after cyanide exposure. The pH gradient would fall, the intermembrane gap pH would rise, and ATP synthesis would cease.
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what is a parasitic relationship?
a) one in which one member benefits, and the other is harmed.
b) one in which no members benefit, and none are harmed.
c) one in which one member benefits, and the other is unharmed.
d) one in which both members derive some benefit.
Help me out with this science question please.
PLZ HELP!! Which wave has/will transfer more energy?? A or B??
Why is the root of a plant unable to absorb mineral salt from the soil if it’s given a poison that prevents respiration
A young goat has downward-curved horns. Its father has upward-curved horns while its mother has downward-curved horns. Which of these statements is the explanation?
Statement 1 is the correct one because every individual receives one copy of the gene from their mother and one from their father.
The process by which a gene's information is used to create a functioning gene product, such as proteins or non-coding RNA, is known as gene expression. Transcription is the process through which the information in the gene is initially transformed into RNA.
And, then the information in the RNA will be translated into protein. This results in the synthesis of functional or non-functional proteins. For goat's horn, the protein keratin is required to buildup a tough structure.
Therefore, in the given situation, the gene combination regulates the shape of the horn of a young goat. Therefore, the correct statement is 1.
The complete question is -
A young goat has downward-curved horns. Its father has upward-curved horns while its mother has downward-curved horns. Which of these statements explains why the young goat has downward-curved horns?
1. The young goat inherited one copy of the gene for horn shape from its mother and one copy from its father. That gene combination instructs for proteins that connect in ways that make downward-curved horns.
2. The young goat inherited one copy of the gene for horn shape from its mother and one copy from its father. Those genes connect together to make its downward-curved horns.
3. The young goat inherited its copies of the gene for horn shape from its mother and not from its father. Just like its mother's genes, those genes instruct for proteins that connect in ways that make its downward-curved horns.
4. The young goat inherited its copies of the gene for horn shape from its mother and not from its father. Those genes connect together to make its downward-curved horns.
Which one is the answer?
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Which of the following types of models could be used to represent a cell?
a
idea model
b. physical model
С. computer model
d all of the above
Please select the best answer from the choices provided
A
ΟΟΟΟ
Answer:
I would say D- all of the above.
Explanation:
In a transformation experiment, a sample of E. coli bacteria was mixed with a plasmid containing the gene for resistance to the antibiotic ampicillin (ampr). Plasmid was not added to the second sample. Samples were plated on nutrient agar plates, some of which were supplemented with the antibiotic ampicillin. The results of E. coli growth are summarized below. The shaded area represents extensive growth of bacteria; dots represent individual colonies of bacteria. Plates that have only ampicillin resistant bacteria include which of the following?
a. I only
b. III only
c. IV only
d. I and II
Option A, The plasmid containing the amp gene was added to the first sample of E. coli, but not to the second sample. Therefore, only the first sample should contain bacteria that are resistant to ampicillin.
This is represented by the shaded area on the plate I, which indicates extensive growth of bacteria. Plates II, III, and IV do not have any shaded area, meaning that there is no extensive growth, and only dots representing individual colonies of bacteria.
Since the plasmid was not added to the second sample it does not have resistance to the antibiotic. This means that plates III and IV, which contain the antibiotic, will not have any ampicillin-resistant bacteria and thus the answer is a. I only.
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PLEASE IM GONNA FAIL WILL GIVE BRAINLESS
Sooo “Drakes” are dragons and it was in a virtual lab and this is about meiosis. I don’t really know how to answer this because I had trouble with the assignment. Could someone plzzz help me? DONT give links and if u answer with a detailed answer, i’ll give u the crown!!! ✨✨
Answer:
ok, I'm gonna answer this as best as I can. basically, offspring don't look exactly like either parents because half of their genetic makeup comes from the mom, the other from the dad. and the genetics from each parent are always different for each sibling. the certain features each parent gives to their offspring are random. if one parent had a dominant trait for one feature, and the other parent has a recessive, the dominant overrides the recessive and the dominant trait is the phenotype (physical appearance). just because an offspring doesn't have the phenotype of a certain trait doesn't mean they don't have the genotype (the trait's gene) and that they can't. pass it onto their offspring in the future. I hope that makes sense, I tried my best! kinda hard to explain because I'm only 14 and just learned this stuff this year haha.
Describe in one paragraph the importance of carbohydrates. (5-8 sentences)
Answer:
Carbohydrates are the body's main source of energy. Without carbohydrates, your body will use up fat and protein in place of carbohydrates. These other sources of energy are harder to use. Carbohydrates provide energy for everything you do, whether it be running or breathing. Carbohydrates also provide important fiber for protection against disease. Extra carbohydrates (not used for energy), broken down as glucose, can be converted to glycogen, which is important for good muscle and liver health.
Explanation:
Hope this helps! :)
Tropical rainforests on the equator receive 12 hours of sunlight every day and the temperature
rarely goes about 34°C. Based on what you know about photosynthesis and the information in the graphs above,
explain how this relates to the high biodiversity (lots of plants and animals) found in tropical rainforests.
Due to its proximity to the equator, the tropical region enjoys a hot climate. In this area, the low temperature is 15 °C. The temperature can rise above 40°C in the summertime.
What is rainfall biodiversity?Rainfall is the total volume of water as falls as showers over the period of a week or a month. Rainfall is gathered from a variety of places and periods to estimate it since quantities might differ across sites and times.
What is biodiversity?Including the animals, plants, fungi, and even bacteria—that make up our natural world. These many creatures and species work together in intricate ecosystems resembling webs to maintain equilibrium and sustain life. Biodiversity is necessary for the survival of everything in nature that we depend on, including food, clean water, medicines, and shelter.
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Please answer I really need help
Answer:
1. Homeostasis.
2. Cell membrane.
3. Semi-permeable.
4. Passive transport
5. Osmosis.
6. Facilitated diffusion.
7. Active.
8. Endocytosis.
9. Exocytosis.
10. Protein pumps.
Explanation:
A cell can be defined as the fundamental or basic functional, structural and smallest unit of life for all living organisms. Some living organisms are unicellular while others are multicellular in nature.
A unicellular organism refers to a living organism that possess a single-cell while a multicellular organism has many (multiple) cells.
Generally, cells have the ability to independently replicate themselves.
In a cell, the "workers" that perform various functions or tasks for the survival of the living organism are referred to as organelles.
In order for cells to function properly and stay alive, they must be in a state of equilibrium known as homeostasis.
Homeostasis can be defined as a process through which a living organism maintains a steady or stable physical, internal and chemical environment that is ideal to enhance life and proper functionality.
One way that cells maintain balance is by transporting material in and out of a cell; the cell membrane is the organelle that is responsible for regulating this process. The cell membrane is called semi-permeable which means that the membrane will allow some materials to enter/exit the cell while preventing others. Thus, it is the wall of the cell and typically controls what leaves and enters the cell.
Some materials can easily move across the cell membrane without requiring energy, this is called passive transport and includes diffusion and osmosis, the diffusion of water. Another type of passive transport requires a protein to move larger molecules such as glucose across the cell membrane. This is called facilitated diffusion.
Other particles require energy to move across the membrane because they move against the concentration gradient and against homeostasis; this type of movement is called active transport. An example of active transport is endocytosis where vesicles are formed to move large particles into the cell and exocytosis where vesicles move large particles out of the cell.
This ultimately implies that, exocytosis is a process in which living organisms release or expel large amount of unwanted material through the use of vesicles. Vesicles are cell organelles that ensure materials are properly transported to the right and exact location.
Additionally, exocytosis is a process initiated by the Golgi apparatus because it prepares the material for export by chemically tagging them.
Protein pumps are another example of active transport that moves ions against the concentration gradient using a protein.
Which occurs just before a volcanic eruption?
Lava flows onto the sides of the volcano.
The expanding gases push magma through the pipe.
A pocket of magma forms beneath the volcano.
New rocks are formed as lava hardens.
Answer:
The expanding gases push magma through the pipe.
Explanation:
The activity that happens before the volcanic eruption is the expanding gases pushing magma through the pipe.
What do you mean by Volcanic eruption?A volcanic eruption may be defined as an activity that is responsible for an opening in the earth's crust through which lava, volcanic ash, and gases exit.
Before the volcanic eruption, several gases create an extreme pressure that efficiently pushes the magma through the pipe which leads to the flow of lava onto the sides of the volcano.
Therefore, the correct option for this question is B.
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What makes mollusks unique?
The presence of file-like rasping tool called a radula makes mollusks unique. This structure helps them to dig algae and other food from rocks or they can even shell of prey.
In general , Mollusks are classified to have soft bodies, and the body is not segmented . Soft body helps to holds the heart, liver, digestive system, and other important organs. Mollusks don't have legs, they have rough tongues with teeth like structure known as radula .
Hence, important distinguishing feature in mollusks is having a hard outer shell. That covers the top of the body and helps to enclose many internal organs. They have distinctive head region, this region have tentacles for sensing and also grasping food.
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In some cases, a third name is given to the animal to indicate a SUBSPECIES. What animal on the chart is a subspecies? What is this animal's full scientific name?
Answer:
What animal on the chart is a subspecies? The DOGWhat is this animal's full scientific name? Canis lupus familiarisExplanation:
Taxonomy is the study of different organisms, their classification into categories according to their morphological and molecular characteristics and their evolutionary relationships, and assigning to each them a binomial name.
The categories where organisms are classified into are:
• Domains are the highest taxonomic category in which living beings can be grouped or divided. There are three domains: archaea, bacteria, and eukarya.
- The archaea domain
- The bacteria domain
- The eukarya domain
• Kingdom: Includes different phyla closely relates.
• Phylum: Includes different classes closely related.
• Class: Includes different orders closely relates.
• Order: Includes different families closely related
• Family: Includes different genera closely relates
• Genus: Includes many species → Lycaon, Vulpes, and Canis are genuses
• Species: Includes subspecies if there are → For instance, Canis lupus
Subspecies subgroups inside the species group → Canis lupus familiaris
So each level includes the following levels.
In the exposed example, Canis lupus familiaris is a subspecies of the species Canis lupus.