Answer:
A. The formation of fossil fuels
Explanation:
Human activities would have the least immediate impact on the formation of fossil fuels because the fossil fuels are not affected the formation of fossil fuels. The formation of fossil fuels takes millions of years because it is a very slow process. Human activities greatly affected the coral reef bleaching, over population and Eutrophication due to the release of pollutant gases in the atmosphere that greatly impact the environment.
Gina is studying a cell under a powerful microscope. The cell does not contain membrane-bound organelles.
Which cell is Gina most likely studying?
an animal cell
a bacterial cell
a plant cell
a protist cell
Answer:
A Bacterial cell
Explanation:
because it’s a prokaryotes cell and those don’t have membrane bound organelles
why was mandels work not accepted at the time
Answer:
His work was not accepted at the time because during that time DNA had not yet been discovered.
Why are data tables useful in an experiment?
[tex]\textsf{QUESTION:-}[/tex]
[tex]\textsl{Why are data tables useful in an experiment?}[/tex]
[tex]\hookrightarrow[/tex] [tex]\textsf{ANSWER:-}[/tex]
Data tables aid in the organization of information. Saving data from an experiment or scientific research in a data table will make it easier to look up later. Data tables may also aid in the creation of graphs and other charts based on your data.
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[tex]\textbf{HOPE IT HELPS}[/tex]
[tex]\textbf{HAVE A GREAT DAY!!}[/tex]
What are some ways we can reduce climate change
Power your home with renewable energy and speak up!
Name at least three neuromitters and state the roles of these neuronmitters in human body ? Except acetylcholine, (GABA)and domanine. Please help as soon .
Answer:
Explanation:
The chemical messengers present in the body are known as neurotransmitters. These are the chemicals that the nervous system uses to send and receive information between neurons and muscles. A neurotransmitter can have one of three effects on a neuron:
Excitatory effect, Inhibitory effect, and/or Modulatory effect.
The list of neurotransmitters and their roles are as follows:
Glutamate: This is present in amino acid compounds which are located in the synapses. It functions as an excitatory neurotransmitter, causing neurons to discharge instructions when stimulated in the central nervous system.
Adrenaline: It helps to respond to body's psychological stress and protection mechanism. They are positioned above the kidney and are created by the adrenal glands. They operate throughout the central nervous system and swiftly increase your heart rate and provide oxygen to your muscles.
Serotonin: Serotonin is a crucial brain neurotransmitter that also has a role in the small intestine. In your digestive tract, serotonin increases feelings of contentment after eating and controls your appetite. When you eat anything that doesn't agree with your stomach, serotonin assists your body in getting rid of it.
1. Juan es un estudiante joven que hace poco se mudó a su propio departamento. Realiza actividad física desde siempre pero últimamente nota que se cansa más rápido, tiene poca fuerza y ha perdido algo de peso. No entiende la causa porque sigue comiendo en forma abundante. Visita a su médico, quien le informa que tiene pérdida de masa muscular y le pregunta si está alimentándose correctamente. ¿Por qué le hace esta pregunta? ¿Qué tiene que ver la comida con el músculo?
Answer:
Es posible que Juan sospeche que no está alimentándose correctamente (comer en grandes cantidades no significa estar bien alimentado)
Explanation:
Las proteínas representan un macronutriente esencial que debe ser consumido a través de la dieta para crecer en masa muscular y también para mantener la masa de los músculos. Las proteínas están compuestas por muchos tipos diferentes de aminoácidos (los bloques de construcción de las proteínas), pero solamente 20 aminoácidos conforman las proteínas que se encuentran en el cuerpo humano. Los aminoácidos esenciales son aquellos que el cuerpo no puede sintetizar por sí solo. Estos aminoácidos esenciales son: histidina, fenilalanina, treonina, lisina, metionina, triptófano, valina, isoleucina y leucina. El consumo diario recomendado por la Organización Mundial de la Salud (OMS) de proteínas en un hombre adulto es 0,8 a 1 gramo por kilogramo de peso corporal. Además, es posible que el cansancio que experimenta Juan se deba a alguna deficiencia en micronutrientes esenciales, es decir, debido a la falta de vitaminas y minerales, los cuales también deben ser consumidos a través de la dieta. Por ejemplo, la fatiga puede deberse a la falta de hierro, un mineral fundamental cuya deficiencia lleva a cuadros severos de anemia. Similarmente, la deficiencia en vitamina D puede también causar agotamiento o fatiga crónica, entre otros síntomas (por ej., abruptos cambios en el estado de ánimo, debilidad ósea en los huesos, daño en el estómago, etc). Por otra parte, es importante remarcar que no se debe descartar la posibilidad de que el cansancio experimentado por Juan se deba a un cuadro de estrés y/o algún otro tipo de problema de salud, siendo por lo tanto necesario una descripción más detallada del cuadro clínico para obtener una conclusión más precisa de su situación.
Describe how detrital sedimentary rocks are classified.
possible solution of making new friends at universities
A scientist claims that he has protected animal test subjects from a newly mutated virus using an experimental vaccine. The experimental vaccine was injected into five animal test subjects. The scientist also injected a placebo vaccine into five other animal test subjects. One month later, all of the test subjects were exposed to the mutated virus. The subjects that received the vaccination showed no sign of the disease and blood tests confirmed the presence of antibodies against the disease, but the subjects given the placebo developed symptoms of this condition. Why did one group have a placebo injected before being exposed to the virus? Choose 1 answer: Choose 1 answer: (Choice A) A They were part of the control group (Choice B) B They would be exposed to a weakened form of the virus (Choice C) C They would be protected from the disease (Choice D) D They were part of the experimental group
Answer:
A. They were part of the control group
Explanation:
In a scientific experiment, the CONTROL GROUP as opposed to the experimental group is the group that does not receive the experimental treatment. This acts as a standard for comparison.
In this question, the EXPERIMENTAL VACCINE is the experimental treatment or independent variable that was added. The five animal test subjects that was injected with this vaccine are called the EXPERIMENTAL GROUP while the other five test subjects that were rather injected with a PLACEBO are called CONTROL GROUPS.
Place the events in the transmission of an action potential in the correct order. 1. An action potential begins in the receiving neuron. 2. Neurotransmitters are released into the synaptic cleft. 3. An action potential arrives at an axon terminal. 4. Calcium ions enter the axon terminal. 5. Sodium ions diffuse into the receiving neuron. 6. Synaptic vesicles fuse with the plasma membrane. 7. Neurotransmitter molecules bind to the membrane of the receiving neuron.
A. 1,2,6,7,4,3,5
B. 3,5,6,2,7,4,1
C. 3,4,6,2,7,5,1
D. 2,3,6,7,4,5,1
E. 7,6,5,3,4,2,1
Answer:
c
Explanation:
Describe and distinguish between the sources of energy utilised by the brain and heart under well-fed and starvation conditions.
Answer:
Brain ----- glucose and amino acids.
Heart ------- fatty acids and triglycerides.
Explanation:
The sources of energy utilized by the brain is glucose under well-fed whereas the sources of energy utilized by the heart under well-fed condition is fatty acids. During starvation, the source of energy used by the brain is amino acids from skeletal proteins when glucose is not available while on the other hand, during starvation, the heart utilized triglycerides as a source of energy in the absence of fatty acids.
Which of the following describes how the United Nations plans to correct the issue of deforestation?
by helping poor countries reach economic security
o by implementing small anti-climate change measures
by focusing on conditions within politically stable countries
o by imposing strict penalties on countries with poor environmental practices
Answer:
I think it is by implementing small anti-climate change measures but I'm not sure
Which statement about DNA replication is true?
A) Eukaryotes can only replicate one segment of chromosome at a time
B) Prokaryotes can only replicate their single circular chromosomes in the nucleus
C) Eukaryotes only have one circular chromosome that unwinds at multiple locations
D) Prokaryotes only have one origin of replication to initiate replication
Scientists are trying to find the causative agent for a new disease in chicken. They grow a culture of what they think is the causative agent. They then inoculate a large group of healthy representative chicken with the agent, but none of the chicken become ill. Applying the Germ Theory of Disease, which of the following could explain the results (choose all correct answers)?
A. They isolated resident microbiota (look in your textbook for definition)
B. The suspected causative agent is found in healthy chickens.
C. The true causative agent is not an infectious disease.
D. The suspected causative agent is an infectious disease.
Which event happens first when you get a splinter?
A. The white blood cells produce antibodies.
B. The damaged tissue releases chemical messengers.
O C. The white blood cells eat pathogens near the wound.
D. The damaged tissue swells and becomes painful.
Answer:
I believe it is B. The damaged tissue releases chemical messengers
Explanation:
This is because the chemicals of the so-called complement system start drilling holes into bacterial cell walls. Macrophages, big eater cells, devour any invaders they meet. This is to prevent furthur infection!
What are some benefits of social behavior?
Answer:
Social behavior is defined as interactions among individuals, normally within the same species, that are usually beneficial to one or more of the individuals. It is believed that social behavior evolved because it was beneficial to those who engaged in it, which means that these individuals were more likely to survive and reproduce. Social behavior serves many purposes and is exhibited by an extraordinary wide variety of animals, including invertebrates, fish, birds, and mammals.
Social behavior seems to provide many benefits to those who practice it. Studies have shown that many animals are more successful in finding food if they search as a group. This is especially true if food resources are clumped together only in certain places. If more individuals are cooperating in the search, there is a greater chance one of them will find the clump of food. In some cases, foraging in a group makes it easier to capture a prey. Dolphins are known to surround a school of fish and to take turns darting into the center to eat the fish that are trapped in the middle. Many carnivores will band together when they try to capture large prey. Some examples are that wolves will hunt together when hunting moose, and lions will hunt together when hunting large prey such as wildebeests. When these animals are hunting much smaller prey, they will often hunt singly.
Many animals live in social groups partly for protection. Although one baboon might not be able to fight off a leopard, a troop of baboons often is able to do so. In addition, with more individuals cooperating together, some can serve as sentries looking for danger while the other group members are eating or sleeping. Prairie dogs and large flocks of crows normally have some individuals acting as sentries, which makes it nearly impossible to sneak up on a prairie dog town or a flock of crows.
Some animals form social groups to make travel easier. Canada geese and other bird species typically fly in a V formation. Just like bicyclists who ride behind one another in order to reduce wind resistance, the geese fly in formation to reduce the wind they must encounter. In this situation, the lead bird has the most tiring job, which is why several birds usually take turns leading the V. Some animals congregate in close proximity to one another in cold weather in an effort to stay warm. Small birds are sometimes known to huddle so closely they form a single large ball of birds.
If the pair of materials listed below were rubbed together, give the charge that each would have in the same order as listed. use short-form P and N. silk and paraffin wax
Answer:
Simply put, the property of electron affinity refers to the relative amount of love that a material has for electrons. If atoms of a material have a high electron affinity, then that material will have a relatively high love for electrons. This property of electron affinity will be of utmost importance as we explore one of the most common methods of charging - triboelectic charging, also known as charging by friction or rubbing.
Suppose that a rubber balloon is rubbed with a sample of animal fur. During the rubbing process, the atoms of the rubber are forced into close proximity with the atoms of the animal fur. The electron clouds of the two types of atoms are pressed together and are brought closer to the nuclei of the other atoms. The protons in the atoms of one material begin to interact with the electrons present on the other material
Mark me brainlist
.5km/sec north by northwest is an example of
speed
acceleration
velocity
distance
Answer:
The answer is Distance.
The radiometer is designed to be placed in a sunny window and as the sun's rays strike the blades, they spin. Which kind of energy powers this device?
Answer:
Solar energy.
Explanation:
Solar energy is the kind of energy that powers the devices when the solar radiations strike on the blades of the radiometer. The device has the ability to change or convert solar energy into mechanical energy. Solar radiation is a natural resource from which clean energy can be formed that can be used for different activities in our daily life. There are certain cells that are present on the body of radiometer that produces energy needed for its running.
26._____The first trophic level is usually occupied by herbivores. 27.__True___It is possible for a plant to be a carnivore. 28._____A habitat refers to the role of a species in its ecosystem. 29._____Biotic factors include sunlight, soil, temperature, and water. 30._____A food web can be represented by many interconnected food chains. 31._____There are rarely more than four trophic levels in an ecosystem. 32._____Like water, energy is also recycled through an ecosystem.
Answer:
The correct answer is -
26. false
27. true
28. false
29. false
30. true
31. true
32. false
Explanation:
The first trophic level is usually primary producers and herbivores are the primary consumers placed in the second trophic level.
There are some plants that depend on insects and small organisms for their nutrition.
Habitat is the living area of an organism it can be understood as address.
Biotic factors are the living organisms of the ecosystem while sunlight, soil, temperature are abiotic factors.
A food web is complex as it is made up of several food chains interconnected.
Normally there are only three or four trophic levels in most of the ecosystem.
Energy is not recycled in ecosystems like water or carbon.
Who are autotrophs ?
Answer:
autotrophs are organisms that make their own food, like plants, who make their own food through photosynthesis.
An autotroph is an organism capable of making nutritive organic molecules from inorganic materials. It could be through photosynthesis (involving light energy) or chemosynthesis (involving chemical energy).
Where does the emulsification of fat occur?
Answer:
The emulsification of fat occurs in the liver.
If you had a sequence of DNA that was ATGCCATTGC, what would be the complementary DNA Sequence?
Answer:
TACGGTAACG
Explanation:
T-A
C-G
Which of the following is true about lethal alleles? Group of answer choices
A They can kill an organism before birth.
B They can be dominant or recessive.
C They can alter the number of offspring the organism has.
D All of these are true.
Answer:
B
Explanation:
They can be dominant or recessive.
egg________caterpilllar______imago
Which of the following is a true statement regarding phytoplankton?
they are most commonly found near deep-sea thermal vents
they are responsible for 80% of all global warming
they are the only cause of green ocean water
they are the primary photosynthetic plants in the ocean
Answer:
(D) I think
Explanation:
What is the path blood takes through the heart, body and lungs.
Answer:
Blood comes into the right atrium from the body, moves into the right ventricle and is pushed into the pulmonary arteries in the lungs. After picking up oxygen, the blood travels back to the heart through the pulmonary veins into the left atrium, to the left ventricle and out to the body's tissues through the aorta.
Explanation:
Answer:
1) body –> 2) inferior/superior vena cava –> 3) right atrium –> 4) tricuspid valve –> 5) right ventricle –> 6) pulmonary arteries –> 7) lungs –> 8) pulmonary veins –> 9) left atrium –> 10) mitral or bicuspid valve –> 11) left ventricle –> 12) aortic valve –> 13) aorta –> 14) body.
Explanation:
this is full path of blood with every single detail
What is the relationship between enzymes and activation?
Answer:
ibyvbeyveveeb
Explanation:vdbvdbdyube
What is the RNA sequence that corresponds to this DNA sequence? ACC GCG
TAT GCT *
Answer:
UGG CGC AUA CGA
Explanation:
What is the computational next arctic ice phenomenon?
Answer:
As an indicator of the impacts of climate change, Arctic sea ice is hard to beat. Scientists have observed the frozen polar ocean advance and retreat at this most sensitive region of the Earth over decades for insight on the potential ripple effects on assorted natural systems: global ocean circulation, surrounding habitats and ecosystems, food sources, sea levels and more.