Answer:
A
Explanation:
Before you make a hypothesis—your best guess at a solution—what must you do?
Group of answer choices
Run an experiment
Make observations
Form a theory
Draw conclusions
Answer:
make observations .
Explanation:
Collect as many observations about a topic or problem as you can.
Evaluate these observations and look for possible causes of the problem.
Create a list of possible explanations that you might want to explore.
Visible light comes from which one of the sun's layers?
O A. The radiative zone
B. The corona
C. The convection zone
D. The photosphere
O E. The core
Answer:
The correct answer is photosphere.
Explanation:
Visible light comes from the layer known as the photosphere.
The Sun's photosphere is the layer that emits visible light. The Sun's atmosphere has seven layers: The core, or the Sun's interior. The radiative zone. The convective zone. The photosphere or the visible surface. The Chromosphere. And the corona, the outermost layer.
Visible light comes from one of the sun's layers called the photosphere, which is in option D, as the photosphere is the visible surface of the sun and is the layer from which most of the sun's visible light is emitted.
The sun consists of several layers, and each layer is with distinct characteristics. such as the innermost region, have the core, followed by the radiative zone, the convection zone, the photosphere, the chromosphere, and finally, the outermost layer called the corona. In the core, nuclear fusion takes place, and as a result, enormous energy is released.
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Which of the following statements best proves that the law of conservation of mass is obeyed during photosynthesis?
a. The starting total number of oxygen atoms in carbon dioxide is equal to the ending total number of oxygen atoms in glucose.
b. The starting total number of oxygen atoms in carbon dioxide gas is equal to the ending total number of oxygen atoms in glucose and oxygen.
c. The total mass of glucose and oxygen formed from photosyntheesis is equal to the total mass of carbon dioxide and water used up during the reaction.
d. The total mass of glucose and carbon dioxide formed from photosynthesis is equal to the total mass of oxygen and water used up during the reaction.
c. The total mass of glucose and oxygen formed from photosyntheesis is equal to the total mass of carbon dioxide and water used up during the reaction. (right answer i believe)
The total mass of glucose and oxygen formed from photosyntheesis is equal to the total mass of carbon dioxide and water used up during the reaction.
The reaction is given by.
CO_2+H_2O—⟩C_6H_12O_6+O_2Which autoimmune disease results in the destruction of beta cells in the
pancreas?
type 1 diabetes
pernicious anemia
celiac disease
rheumatoid arthritis
A sample of gold has a mass of 38,6 grams and a volume of 2 cm What is the density of gold?
the difference between the cellular make-up of a living organism and an aluminum cari is the ___
Answer:
The difference between the cellular make - up of a living organism and aluminum can is the ability to use energy .
which of these sources add water to lakes
Answer:
what are the sources bff
Explanation:
Answer:
Rain runoff, groundwater, melting snow.
Explanation:
Rain flows through various paths and goes into lakes, carrying various types of small leaves or soil particles along with it into the lake.
Groundwater can also form lakes and is the source of freshwater.
The melting snow is also the source of freshwater that flows and reaches the nearby ponds or lakes present in the nearby areas.
Based on the cell theory, which of the following is true?
O All cells are too small to be seen.
O All living things are made of cells.
OSmall organisms have more cells than large organisms.
Large organisms have larger cells than small organisms.
Answer:
all living things are made of cells
Answer:
all living things are made of cells
Explanation:
The first part of the cell theory states that all living things are made up of cells. Anything that’s alive, from bacteria to plants to humans, is composed of cells. And what are cells? The literal definition is a cell is a group of organelles surrounded by a thin membrane.
Si una población crece mucho otra vez después de un cuello de botella con el paso del tiempo aumentará diversidad genética ¿por qué?
Answer:
los mecanismos capaces de generar diversidad actúan para incrementar la variabilidad genética en la población que sufrió el cuello de botella
Explanation:
Un cuello de botella se refiere a una reducción drástica en el tamaño de una población (por ejemplo, debido a una catástrofe natural). Un cuello de botella es un fenómeno que está asociado a la reducción en la variación genética y fijación de ciertos alelos en la población resultante, lo cual es causado por la deriva genética, es decir, debido al muestreo al azar de los individuos que formarán la población en la siguiente generación. Paulatinamente, los mecanismos capaces de generar variabilidad genética aumentarán nuevamente la diversidad de la población que sufrió el cuello de botella. En una población de reproducción sexual, la variación genética se genera mediante cuatro procesos diferentes: 1-mutación (es decir, la aparición de nuevos alelos debido a alteraciones en la secuencia de ADN); 2-recombinación (es decir, el intercambio de información genética entre cromátidas no hermanas durante la meiosis); 3-segregación independiente de cromosomas durante la meiosis (capaz de producir nuevas combinaciones de alelos) y 4-fertilización al azar (lo cual también incrementa el número de combinaciones entre gametos que darán lugar a un nuevo individuo).
Which of the following animals has a solitary lifestyle ? A.sika deer B.elephant C. zebra D.rhino
Answer:
A sika deer
my ans is right or wrong
Answer: A: Sika Deer
Explanation: Adult males are solitary for most of the time and will band together sometimes.
The term bycatch or incidental catch refers to ________. non-target species that are caught along with commercial species species harvested for industrial purposes species raised in aquaculture settings species caught as part of traditional fisheries krill and other shellfish
Answer:
The correct answer is ''non-target species that are caught along with commercial species''
Explanation:
Bycatch refers to bycatch organisms that are not targeted by the fishery. Occurs inadvertently in fishing gear, all fisheries have some unwanted bycatch. Species with little or no commercial value, juvenile stages, or discarded gravid females of the target species (s) are generally included here. These incidental catches can be marginal when fishing is carried out with selective or very substantial gear, when the gear used indiscriminately catches everything that comes along its route. In marine fisheries, it causes injury or death to mammals, birds, turtles, fish, elasmobranchs, and invertebrates.
a) What is the earth's path around the sun called? b) How long does it take for Earth to complete a complete circuit around the Sun? c) Name one planet that is closer to the Sun than Earth and another one that is further away. .
Which of the following products is an example of innovation and technology in plant science?
A prepotted herb garden
A potted fern
The use of GPS data
USDA hardiness zones
Explanation:
A prepotted herb garden is the answer
hope this helps you
have a nice day:)
Cerebrospinal fluid (CSF) is formed by capillary knots called the ________________________, which hangs inside the ________________________ of the brain. Ordinarily, CSF flows from the lateral ventricles into the ____________ ventricle and then through the _______________ into the fourth ventricle. Some of the fluid continues down the ________________________ of the spinal cord, but most of it circulates into the ________________________ by passing through three tiny openings in the walls of the ________________________. As a rule, CSF is formed and drained back into the venous blood at the same rate. If its drainage is blocked, a condition called ________________________ occurs, which results in increased pressure on the brain.
Answer:
1. Choroid Plexuses
2. Ventricles
3. third
4. Cerebral Aqueduct
5. Central Canal
6. Subarachnoid space
7. Forth Ventricle
8. Hydrocephalus
Explanation:
Cerebrospinal fluid formed by capillary knots called Choroid Plexuses which is hanged inside ventricles. There are four ventricles in which CFS flows from lateral to third and from cerebral aqueduct to forth ventricle. The meninges covers spinal cord which extends more inferiority to form a sac from which cerebrospinal fluid can be withdrawn without damage to spinal chord.
How Can I Explain Why A Theory Is Also A Hypothesis?
Answer:
well a hypothesis is literally a scientific assumption or theory used to describe what they think is going to happen during a experiment
Which of the following is the best definition of pseudoscience?
Explanation:
a collection of beliefs or information that claims to be scientific as it is supposedly gathered by a scientific method,
How does the Gulf Stream affect London?
O
A. It moves warm water north from the Gulf of Mexico during the winter, keeping the temperature constant year round.
0
B. The moving water causes lower air pressure which holds less moisture and reduces the precipitation that London
receives.
C. It moves warm water north from the Gulf of Mexico, making London warmer than it should be at its latitude.
D. It moves cool water north from the Gulf of Mexico, making London colder than it should be at its latitude.
Answer:
The Gulf Stream affects London because C. It moves warm water north from the Gulf of Mexico, making London warmer than it should be at its latitude.
Explanation:
If it weren't for the Gulf Stream, London would have the same climate as Canada rather than New York. This is why latitude is not the only factor for an area's average temperature throughout a certain time of a year.
The muscle weakness of myasthenia gravis results from loss of acetylcholine receptors in the end-plate membrane. the motor neuron action potential being too small to shock the muscle fibers. insufficient acetylcholine release from presynaptic vesicles. excessive acetylcholinesterase that destroys the neurotransmitter. All of the answers probably contribute to the muscle weakness.
Answer:
The correct answer is ''loss of acetylcholine receptors in the end-plate membrane.''
Explanation:
Myasthenia gravis represents a human autoimmune disease. The neuromuscular junction abnormalities that occur in this disease are due to antibody-mediated processes. A reduction in the number of functional acetylcholine receptors on the postsynaptic membrane was established to contribute to the physiological abnormalities of myasthenia gravis. The reduction in receptors is due to immunological alterations directed against the acetylcholine receptor. Normally, when acetylcholine binds to its receptor, it opens allowing the rapid entry of cations, especially sodium. With this, the depolarization of the postsynaptic region of the muscle fiber occurs. Although acetylcholine is normally released in myasthenia gravis, it is not capable of causing an action potential in the muscle sufficient to initiate or weaken contraction. In patients with myasthenia gravis, failure to activate muscles is responsible for myasthenic fatigue. Most patients have elevated serum titers of antireceptor antibodies, which in turn accelerate receptor degradation.
If new genetic variation in the experimental populations arose solely by spontaneous mutations, then the most effective process for subsequently increasing the prevalence of the beneficial mutations in the population over the course of generations is
Answer:
binary fission
Explanation:
Binary fission is the main type of reproduction of prokaryotic organisms. In binary fission, the prokaryotic cell first duplicates its DNA and then divides into two cells, each one receiving one complete DNA molecule. Since binary fission is a type of asexual reproduction, this process increases the prevalence of beneficial mutations in a bacterial population. Moreover, transduction refers to the process by which a virus transfers genetic information from one bacterium to another bacterium. Conjugation is also a sexual mode of transfer of DNA from a donor (F+) to a recipient (F−) bacterial cell by direct cell-to-cell contact. Finally, transformation refers to the transfer of genetic material by which bacteria take up exogenous DNA from the environment and integrate it in their genomes.
15 POINTS PLUS BRAINLIEST IF ANSWERED IN 5 MINS
The use of fossil fuels is a concern because it can lead to which of the following?
A polluted waters
B eutrophication
C global warming
D increased runoff
Answer:
A
Explanation:
if any oil get in water it can pollute it all ruining the water and it's a danger to animals
Define Aerobic
Thank you! :)
Answer:
Aerobics is a type of physical activity that combines rhythmic aerobic exercise with stretching and strength training exercises to improve overall fitness.
~OAmalOHopeO
After photosynthesis, how will producers get their energy? Producers receive glucose from the intake of oxygen. Producers will release glucose into the atmosphere, feeding the ecosystem. Producers will create glucose, which is the primary source of food. Producers will receive glucose directly from any rainfall that occurs.
Answer:
After photosynthesis (Producers will create glucose, which is the primary source of food)
Explanation:
The biotic component of an ecosystem is made up of all living organisms in it. These organisms are divided into two main groups according to the way they feed:
--> Producers (autotrophs) and
--> Heterotrophs.
Producers are organisms that are able to use sunlight or chemical energy to manufacture their own food (glucose) from simple inorganic substances. This process is known as photosynthesis. Producers include all green plants, photosynthetic protists and some bacteria
Producers extract inorganic nutrients and chemical energy from their non-living environment, that is, from the abiotic component of the ecosystem. Since autotrophs are the only organisms that can produce food in an ecosystem, they are also known as PRIMARY FOOD PRODUCERS.
PRODUCERS use some of the food they produce for their activities and building their body tissues (growth). The rest is stored in various parts of the body.
Answer: Its C, Producers will create glucose, which is the primary source of food.
Explanation: The person above me is right and I also got it right on the test :) hope this helps.
What would happen to the rate of activity if you place Pepsin in the small intestine with a pH of 6?
Answer:
When it reaches the duodenum, though, it assumes an inactive form as the pH rises above 6. Pepsins are secreted by Brunner's glands of the duodenum, and the crypts of Lieberkühn of the small intestine secrete an aqueous fluid.
Jenna's pencil fell off of her desk and she quickly reached down to catch it before it hit the ground. In the process the
Answer:
The complete question with its options is:
Jenna's pencil fell off of her desk and she quickly reached down to catch it before it hit the ground. In the process, the (1)_____ system first recognized the falling pencil. It sent signals to the (2)______ system, which then moved the components of the(3) _____ system in order to catch the pencil.
Options:
(1) 1. Nervous 2. Muscular 3. Skeletal
(2) 1. Nervous 2. Muscular 3. Skeletal
(3) 1. Skeletal 2. Digestive 3. Nervous
The answer is:Jenna's pencil fell off of her desk and she quickly reached down to catch it before it hit the ground. In the process, the (1) Nervous system first recognized the falling pencil. It sent signals to the (2) Muscular system, which then moved the components of the(3) Skeletal system in order to catch the pencil.
Explanation:
The nervous system receives the signal that the pencil is falling. In other words, Jenna sees or feels that the pencil falls, so the senses send a signal to the nervous system to produce a response. We call this a stimuli. Once that the nervous system receives and processes the stimuli, it elaborates an answer. The answer is to send a signal to a group of muscles that will move certain bones to make the movement that will catch the pencil. The muscles are from the muscular system, and they are attached to the bones, which are part of the skeletal system. When the muscles contract, they move the bones and make the movement possible.
Hi, can someone help me these few questions! Will mark as brainliest! Thanks
Answer:
a)the process is binary fission
b)The stages involved are:
The parent cell first grows bigger by increasing the amount of cytoplasm
the DNA replicates and the nucleus undergoes mitosis, resulting in the formation of two daughter nuclei
the cell membrane constricts thereby dividing the cytoplasm in two so that each nucleus is surrounded by it's own cytoplasm
the two daughter cells separate.
c)the advantage is that offspring take short time to mature
the disadvantage is that it leads to overcrowding and competition for resources.
I hope this helps
The purpose of Mendel's experiments with dihybrid crosses was to determine
whether:
A. an F2 generation could be produced from the Fi offspring.
B. one of two traits could be transformed by DNA.
O c. one trait would affect how another is inherited.
D. traits are controlled by more than one gene.
Answer:
C. one trait would affect how another is inherited
Explanation:
Important steps in sequencing pure proteins include all of these except: a. Determining the amino acids on the ends of the smaller peptides b. Determining the isoionic pH of the protein c. Determining the amino acids on the ends of the protein d. Breaking the protein into smaller peptides e. Determining the amino acid composition
Answer:
b. Determining the isoionic pH of the protein
Explanation:
The sequencing of pure proteins is nothing more than the analysis of the amino acids present in isolated proteins. This analysis is composed by the study of the sequence that the amino acids assume within the protein, the amino acids present in the extremities and the constitution of each one of these amino acids. In summary, we can state that protein sequencing refers to the constitution of these proteins. In this case, the isotonic pH of these proteins is not relevant information.
What does red bone marrow make? HELP ASAP PLSSS
Answer:
it makes blood cells. :) have a nice day!
A child is suffering from indigestion and was given a dose milk of magnesia explain why
Answer:
Magnesia is a base.
Explanation:
When you get indigestion its generally because of the over production of Hydrocloric acid in the stomach which is neutralized by consuming a basic compound like milk of magnesia.
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Which of the following is a flowering plant?
Fern
Horsetail
Orchid
Both A and B
Answer:
Orchids
step by step explanation:
Orchid is a flowering plant. So, the correct option is C.
What are Flowering plants?Angiosperms, or flowering plants, are a category of plants that generate flowers as a component of their reproductive processes. With over 300,000 recognised species, they are the biggest and most varied group of plants. Flowering plants range across sizes from tiny herbs to massive trees and can be found in nearly every region on the planet, from deserts to rainforests, oceans to mountaintops.
Flowering plants are economically and ecologically significant because they provide humans with food, fiber, medicine, and ornamental value while also functioning as crucial components of many ecosystems.
Orchids are an extensive and widespread blooming plant family, with over 25,000 species found worldwide. They are well-known for their spectacular, fragrant flowers that come in a broad range of forms, sizes, and colors.
Therefore, the correct option is C.
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