Answer:
32°F
Explanation:
The melting point is the temperature at which a solid turns to a liquid. The melting point at which ice — a solid — turns to water — a liquid — is 32°F (0°C). Invite the children to record their responses in their Ice Investigator Journals.
Who was the first scientist
Answer:
Aristotle is considered by many to be the first scientist, although the term postdates him by more than two millennia. In Greece in the fourth century BC, he pioneered the techniques of logic, observation, inquiry and demonstration.
Explanation:
Answer:
aristole
Explanation:
Which component is missing from the process of cellular respiration?
+ Oxygen → Carbon Dioxide + Water + Energy
Sunlight
Sugar
Oxygen
Carbon
Answer:
Sugar
Explanation:
Answer:
Glucose
Explanation:
Its B because glucose is a type of sugar
Which is a kingdom?
The correct answer is Protista
Answer:
Protista.
Explanation:
:)
Answer:
Given that f(x) = 3x – 2
and g(x) = 2x,
evaluate f(g(-1))
What happens during stage mitosis cell cycle
What is chromotography and how does it work
Answer:
chromotography: It is a process of quick and effective separation and purification of components of a combination. It bases its migration through a stationary phase, under the influence of a moving period, of the various components of the mixture.
Explanation:
How does chromatography work?
The same basic idea applies to all types of chromatography. The mobile phase, as its names suggest, is "mobile" and passes through a stationary phase. The different components of the mixture are divided between stationary and mobile phases, while the moving mobile phase passes through the stationary. This procedure allows components to be separated into a blend because the various components of the blend have various interactions with the mobile and stationary phases.
In reality, this means that in combination components that 'stick tighter' to the fixed phase remains in the fixed phase for a longer period. This means that the components in the mixture are separated, which are not 'strongly held' in the stationary phase. This is the basis of a separating technique for chromatography.
For instance, cotton wool or a glass fried sinter are placed at the base of a glass column in a simple liquid column chromatography system. The column then has a silica package. The column is packed in many ways, e.g. dry packaging or slurry. The crucial factor is that silica is well-packed without air bubbles or crashes, which prevents the movement of mobile phases. The mobile phase, often referred to as the eluent, is then added to reach the top of the silica, once the sílice is well packed. Following this, the mixture that is going to be separated is gently added to the top of the saturated silica. A layer of sand is then placed onto the mixture to ensure it is not disturbed by the addition of more eluent. The eluent (the mobile phase), which can be a solvent or mixture of solvents, is then continually introduced to the system until the mixture has been separated. It is crucial to make sure the eluent level never drops below the top of the silica to prevent air bubbles from entering the stationary phase and inhibiting mobile phase flow.
The components of the blend that "stands tight" in the steady phase (in this example silica) will stay longer in the column as the eluent is flushed down the column. Instead, components which do not 'close' to the stationary phase are faster to elute from the column and gather as fractions. It goes on until all the components have eluted individually from the column. The consequence is a separate mix.
Chromatography can work as a separation technique, as the stationary and mobile phasing attractions of distinct components in a mixture. Due to the varied qualities of the components in the combination, the different attractions are.
Silica, a stand-alone common phase, has Si-O-H connections on the surface. Si-o bonds and hydroxyl groups represent an extremely polar silica gel surface (stationary phase) able to form hydrogen bonds, and can also take part in the interactions of van der Waals, dipole–dipole and dipole–induced dipole.
As the complex mixture travels through the column, how quickly the various components of the elute from the column depend on two characteristics: 1) the degree of stabilisation of each chemical. The interactions between the various components and the silica gel depend on that. 2) How soluble in the mobile phase are the constituent components (the eluent). This relies on how the components interact with the solvent system.
While numerous components in a combination may be extremely similar and even possible to bind hydrogen to silica during the steady-stage stage, hydrogen binding on a silica is highly rare and will interact exactly the same way with the mobile phase. Co-elution (with multiple elements elucidating from the column concurrently) may occur in complex chromatographic separations. Different solvent systems and pH altering tests can even separate some of the most complicated blends into distinct components with the simple chromatography of the liquid column, by means of extensive and meticulous modification in the mobile phase.
examine the diagram below and answer the following
Answer:
1. closer to the sun therefore more photosynthesis
2. see above
3. more photosynthesis means more growth meaning more crop to harvest
When Mendel’s first generation pea plants were allowed to self-pollinate, the ratio of tall (dominant) to short (recessive) plants in the second generation was
Answer:
3:1
Explanation:
Gregor Mendel, who is regarded as the Father of Genetics, worked with pea plants throughout his research. He observed the trait for height in the plants. In the gene for height in pea plants, the allele for tallness (T) is dominant over the allele for shortness (t).
Mendel's first generation pea i.e. F1 plants, which were derived by crossing tall (TT) and short (tt) parents in the P generation, were heterozygous for tallness (Tt). When these F1 plants were allowed to self pollinate i.e. Tt × Tt, the following proportion of offsprings were produced in the F2 generation:
- TT, Tt, Tt, and tt
- Tall 3 : short 1
Answer:
3:1
Explanation:
3 because the dominant is always masking the recessive
so
TT, Tt, Tt, tt
Hope this helps!
Organisms that are capable of
photosynthesis are considered?
A. Producers
B. Consumers
C. Heterotrophs
Answer:
A
Explanation: Photosynthesis is the process in which light energy is converted to chemical energy in the form of sugars. In a process driven by light energy, glucose molecules (or other sugars) are constructed from water and carbon dioxide, and oxygen is released as a byproduct.
What are tundra biomes biodiversity?
Explanation:
A flat and treeless Arctic biome are tundra biomes diversity.
Hope it will help :)❤
Both bacteria and viruses are considered living things.
Answer:
Yes, bacteria and viruses both are considered as living things
Answer:
YESExplanation:
as universally Both bacteria and viruses are considered living things..
Which is the order of the steps of cellular respiration?Krebs cycle ® Calvin cycle ® electron transport chain electron transport chain ® Krebs cycle ® glycolysis glycolysis ® Krebs cycle ® electron transport chain
Answer:
glycolysis, kreb's cycle and electron transport chain
Explanation:
Answer:
Glycolysis, Krebs Cycle, Electron Transport Chain
Explanation:
Lilah's mother is a heavy drinker. When Lilah was born, she had a very low birth weight, and her doctor is noticing that she had
poor coordination and slow body growth. What condition is Lilah suffering from?
A. Depression
B. Alcoholism
C. Tay Sachs Disease
D. Fetal Alcohol Syndrome
Answer:
D. Fetal Alcohol Syndrome
Explanation:
this disease is caused by alcohol abuse during pregnancy , the child has a series of problem including mild intellectual disability
Because of her mother’s alcoholism, Lilah is suffering from fetal alcohol syndrome
What organ does NOT belong in the nervous system? Provide a small explanation from the internet.
A) spinal cord
B) spleen
C) dendrites
D) brain
Answer:
b
Explanation:
because the a.c.d are all connected :) hope i helped
Humans are members of the taxonomic order of primates. What scientific reasoning is used to place humans in this classification grouping?
please help me quick!!!
Cladistics refines classic taxonomy by linking organisms, based on the presence or absence of unique characteristics, into “grades.” For example, if three species share a suite of characteristics but only two of them have a particular trait that is not present in more distantly related species, those two are more closely related and would be depicted as a separate grade.
What is the name of the process that produces waste products water and carbon dioxide?
Answer:
Respiration is a chemical reaction that takes glucose (sugar) and oxygen to produce energy. But it also produces water and carbon dioxide as bi-products. Excretion gets rid of carbon dioxide, water, and other, possibly harmful, substances from your body.
Explanation:
Answer:
Excretion cleans up after respiration. Respiration is a chemical reaction that takes glucose (sugar) and oxygen to produce energy. But it also produces water and carbon dioxide as bi-products. Excretion gets rid of carbon dioxide, water, and other, possibly harmful, substances from your body.
Suppose a population of crabs in a certain tidal ecosystem thrives. These male crabs have one large claw and one small claw, but variation exists in the size of the large claw. They wave the large claw to attract females to their burrow. Females are attracted to males with larger claws. Which crabs will be more likely to have more offspring in this environment?
Answer: The population having one large claw will have more offspring as compared to the ones having smaller claw.
Explanation:
A population of crabs has two types of crabs in it, one with larger claw and other with smaller claw. They will try to attract the female crab in order to mate.
The males having larger claw are more attractive to the females. Females choose to prefer larger claw over smaller claw because they will have a big burrow which will help her incubate her eggs and they are older (survivor)because the crustaceans grow majority of their life.
So, the crab with large claw is likely to have more offspring than other one.
Which surface in the Gizmo has the most friction?
Answer:
The Wood
Explanation:
The wood has the most friction because the final speed is less than the others when the fan is on and the cart slowed down the fastest when the fan is turned off.
Answer:
Wood
Explanation:
The wood has the most friction because the final speed is less than the others when the fan is on and the cart slowed down the fastest when the fan is turned off.
(pls mark me brainliest)
PLEASE HELP ITS URGENT. Due within 15 minutes!!!
________________________________
1. YES - Because progression is shown.2. NO - Because the data is evidence that the athlete can run much faster.________________________________
Help me ASAP ty boys
In living organisms, energy is transferred from organic molecules like carbohydrates, fats and proteins. Do the organisms
use all the potential energy (energy from bonds within the food) they consume? Explain your answer!
Answer:
yes
Explanation:
because they need that energy to work with other activities within the cell
hope it marks as excellent
Please help me ive tried a lot but i can seem to get it i'll give ya brainiest to the first person to answer. Thank you
Answer:
Explanation:
hi yeshhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
Lice live on a person's head. *
Quack (uh....) quack quack quack quackkk (okay then lollll)
Answer: Gross just wash your head.
Explanation: With shampoo
Please help me
Easy 15 points
Which case will most likely be heard in a municipal court?
A. A lawsuit involving $15 million
B. An appeal from a lower court
C. A dispute over an expired license
D. A trial for high treason
Answer:
C
Explanation:
Municipal court is a court that deals with civil and criminal jurisdiction. It is otherwise know as a police court.
Hope this helps :D Have a great day!! :3
if you help me ill mark you brainliest
I had to take a screenshot of my response since it was getting flagged for being inappropriate for some reason.
what will happen to OTHER ORGANS if stomach malfunction due to certain disease?
Answer:it can start issues like cancer, lactose intolerance, heartburn , etc.
Explanation:
Answer:
Problems with stomach emptying (gastroparesis) occur when stomach muscles don't work correctly. Although the underlying cause can't always be found, damage to pacemaker cells and nerves in the stomach due to diabetes or surgery can lead to stomach muscle dysfunction can also cause other issues like cancer, lactose intolerance, heartburn , etc.
Explanation:
stay safe
If two objects are two meters apart, which of these changes will increase the gravitational force between the two objects?
A. decreasing the mass of one object
B. decreasing the mass of both object
C. moving the objects to one meter apart
D. moving the objects to three meters apart
Answer:
Moving the objects to one meter apart.
Explanation:
The gravitational force between tow objects is given by -
[tex]F=G\dfrac{m_1m_2}{r^2}[/tex]
Where
G is universal gravitational constant
r is distance between masses
It can be seen that the force will increase if we increase the masses or if we decrease the distance between masses.
Here, two objects are two meters apart. If the distance is decreased, the force will increase.
Here, out of 4 options, when the objects moves to 1 meter, the gravitational force will increase. Hence, the correct option is (c).
An ecosystem has limiting factors that control the number of organisms that can survive there.
TRUE
FALSE
ANSWER = BRAINLIST
Answer:
The answer is True
4. The clarity of lake water is affected by the amount of phytoplankton (marine plants), soil, clay, and other solids suspended in the lake. Suppose the concentration of carbon dioxide in the atmosphere changed from 340 ppm to 380 ppm from 1980 to 2005. What effect would this have on the
occurrence of the full body plate trait? Explain your answer. Hint: Think about how carbon dioxide is related to photosynthesis. (10 points)
Answer:
The increase of Co2 in the atmosphere could speed up photosynthesis and allow plants to grow and develop faster. If the rate of photosynthesis increases, more Co2 is absorbed and more oxygen is expelled.
An increase in the plant population means better filtration of the water. If the water isn’t as polluted, natural selection will take its course and the fish may not need to pass the full body plate trait to their offspring.
The increase in the concentration of carbondioxide means that the plants
rate of photosynthesis will increase.
Carbon dioxide is required in the process of photosynthesis and its reaction
with water and solar energy forms glucose and oxygen and the effects include
The increase in concentration means more plants will undergophotosynthesis and more food will be produced.
If the polluted water doesn't cause death then natural selection will occur and the fish may not need to pass the full body plate trait to their offspring depending on the exact factors involved.Read more on https://brainly.com/question/20872107
AGCUGACCUAGCGGACAA
Which of the strands below represent the DNA segment from which this section of
mRNA was transcribed?
TCGACTGGATCGCCTGTT
OUCGTCTGGTUCGCU GAAT
UCGACUGGAUCGCCCGUU
SIGN SPINNER-Looking for a colorful individual to spin signs and attract customers. Can't be afraid of bees.
Answer:
The person you are seeking is Castiel
Explanation: