Answers
Answer:
Laboratory apparatus are the tools required to complete lab work, including test tubes, pipettes, beakers, and graduated cylinders.
Explanation:
The laboratory apparatus depends upon the type of laboratory you are in and the experiment you are going to perform.
For example, if you are in a chemistry laboratory, the common apparatus you need to use are:
Test tube holders, tongs - for holding test tubes and beakers that should not or cannot be touched.
Test tubes - for holding small samples or for containing small-scale reactions.
Test tube stands - for keeping a few test tubes upright
Droppers - for adding a very small amount of liquid, drop by drop
Burettes - for adding a precise volume of a liquid
Pipettes - to dispense small and precise amount of liquid samples
Bunsen burners, hot plates, hot water baths - heat sources
Beakers, Erlenmeyer flasks - to contain reactions or to hold liquid samples
Watch glasses - a cover for beakers; sometimes used as an evaporating dish
Funnels - for funneling or for filtering
Graduated cylinders - to measure an amount of liquid
Volumetric flasks - to make precise dilutions
Wash bottles - for dispensing small quantities of distilled water
Wire gauges, clay triangles - to support a container while it is heating
Clamp stands - to support a piece of equipment or a part of it that is otherwise unstable
Balances - to measure the mass of a reagent or product
Kipp's apparatus - to produce a reagent gas (e.g. H2S) in a controlled manner
Spectrophotometers - to measure the absorbance and transmittance of a liquid sample
Fume hoods - to ventilate harmful gases
Desiccators - to preserve a substance in a moisture-free environment
Related Questions
Give two abiotic factors which will affect the growth on a school playing field
Answers
To be considered a tornado, what does it have to be in contact with?
Answers
A prokaryotic organism might be classified in the Domain of ___________ because ______________.
Answers
Match each layer of the Sun to its description
radiation zone
outermost layer of the Sun's interior
convection zone
energy-producing part of the Sun's
interior
core
middle layer of the Sun's interior
Answers
Answer:
core; energy-producing part of the sun's interior
radiation zone; middle layer of the sun's interior
convection zone; outermost layer of the sun's interior
Explanation:
Which statement describes the weather and climate in a tropical region?
The angle of the Sun’s rays affects daylight hours, creating warm temperatures all year.
The temperature is different in summer and winter because the region is at a high elevation.
The angle of the Sun’s rays controls the amount of precipitation experienced in the region.
Rain in the summer and drought in the winter occur because the region is at a high elevation.
Answers
Answer:
The angle of the Sun’s rays affects daylight hours, creating warm temperatures all year.
Explanation:
Answer:
A. The angle of the Sun’s rays affects daylight hours, creating warm temperatures all year.
Explanation:
:)
All plants are able to complete the process of Which means they are able to use energy from sunlight to make food
Answers
Answer:
Photosynthesis
Explanation:
4. If index of refraction 1 is 1.5, index of refraction 2 is 2.0, and the angle of incidence is 45 degrees, what is the angle of refraction?
15 index ofreaction 21820 and the angle of medence is as degres what's the angle of reaction
16 degrees
32 degrees
48 degrees
64 degrees
Answers
Answer: The angle of refraction is 32°
Explanation:
By snell law, we have that:
n₁*sen(θ₁) = n₂*sen(θ₂)
Where n₁ = 1.5
n₂ = 2.0
θ₁ = 45°.
then we want to find the angle of refraction.
1.5*sin(45°) = 2*sin(x)
x = Asin(1.5*sin(45°)/2) = 32°
The angle of refraction is 32.0 degrees
Refractive index and Shell's lawSnell’s Law describes how a ray of light will change direction as it passes from one medium into another, or as it is reflected from the interface between two media.
Snell's law states that:
n1 * Sinθi = n2 * Sinθrwhere;
nA is refractive index of media Aθi is the angel of incidence in media 1n2 is the refractive index of media 2θr is the angle of refraction in media 2Using the formula above
1.5 * sin 45 = 2.0 * sin r
sinr = 1.5 × sin 45/2
r = 32.0 degrees
Therefore, the angle of refraction is 32.0 degrees
Learn more about Snell's law and angle of refraction at: https://brainly.com/question/25758484
Researchers are studying lichens growing on trees in a forest ecosystem. At the beginning of the study, the researchers identified twelve lichen species in the forest. Later, a forest fire happened in the study area. The researchers returned to the area and found only six lichen species. What inference is best supported from the researchers observations?
Answers
Answer:
Certain lichen species are better adapted to survive forest fires than others.
We can conclude that Initial area of the forest was suitable for lichens whereas the later area was not suitable for lichens.
What are lichens?Lichens do not have vascular tissue like xylem and phloem to carry nutrients and water throughout their thalli like a plant does, nor do they have a waxy coating like plants do on their leaves.
The structure of the lichen incorporates everything in its surroundings. Lichens obtain their water and nutrients from the air and rain that fall on them. A lichen's basic structure is made up of layers of fungus and algae.
If there is already a green algal layer present, cyanobacteria can be found in a layer beneath the upper cortex or in microscopic pockets on top of the upper cortex. The lichen will be dark green, brown, or black in color thanks to cyanobacteria.
Therefore, We can conclude that Initial area of the forest was suitable for lichens whereas the later area was not suitable for lichens.
To learn more about lichens, refer to the link:
https://brainly.com/question/14040236
#SPJ5
Hurricanes are more destructive than tornados due to ...
a. their shorter duration
b. the combination of high winds and flood waters
Selected:c. all of the aboveThis answer is incorrect.
d. coastal storm surges
Answers
Answer:
B.) the combination of high winds and flood waters
Explanation:
Hurricanes contain coastal storm surges, high winds, flood waters. Hurricanes also last longer than tornadoes. Hurricanes can last days and maybe even weeks.
The answer would the combination of high winds and flood waters because winds can reach at least 156 mph with a category 5 hurricane. A category 1 hurricane can produce 74 to 95 mph winds. For comparison, an EF0 tornado can produce 65 to 85 mph winds. As for flooding, most of the locations that experience hurricanes are coastal areas, meaning they are situated around an ocean. Since there is a lot more water in the ocean than in a lake, like Lake Michigan or Lake Huron, there is a lot more water that can drown a city. As years pass, hurricanes are getting more and more devastating due to climate changes. More places will get destroyed by hurricanes, high wind, and flood waters.
Type the correct answer in the box. Round your answer to the nearest hundredth.
Scarlett is trying to find the height of a dam. She stands 90 meters away from the dam and records the angle of elevation to the top of the dam to be 26º.
Scarlett's height is 1.65 meters, so the height of the dam is meters.
Answers
Answer:
The height of a dam:
h = x + 1.65 m,
x = 90 m · tan 26°
x = 90 · 0.4877
x = 43.90
h = 43.90 m + 1.65 m = 45.55 m
The height of the dam is 45.5 m.
Explanation:
The height of the dam will be "45.55 m". A complete solution is below.
According to the question,
The height of dam,
[tex]h = x + 1.65 \ m[/tex]
Now,
→ [tex]x = 90 \ m\times tan 26^{\circ}[/tex]
By substituting the values, we get
[tex]= 90 \ m\times 0.4877[/tex]
[tex]= 43.90[/tex]
hence,
The height of dam will be:
→ [tex]h = 43.90 \ m + 1.65 \ m[/tex]
[tex]=45.55 \ m[/tex]
Thus the above response is appropriate.
Learn more:
https://brainly.com/question/12698269
Name 1 way an abiotic factor interacts with another abiotic Factor.
Answers
Answer:
Wind shaping rocks is an example.
Explanation:
Abiotic factors are factors that aren't from a living creature. Wind picks up sharp grains that carve rocks over millions of years. Other examples include:
Water shaping rocks
Earthquakes creating riverbeds.
And much more!
Hope this helps!
Which type of cnidarian is found commonly in both salt water and fresh water?
a. hydras
b. jellyfish
c. corals
d. sea anemones
Answers
Answer:
A) Hydras
Explanation:
Answer:
A: hydras
Explanation:
got it right on edge
Pls help I will mark bainiest. Answer first
Answers
A population of sagebrush lives in a grassland ecosystem. Over several years, erosion causes the soil of the grassland to have an increasing amount of sand in it. The data below was collected by scientists studying the ecosystem.
Year Percentage of
Sand in Soil Average Height of
Sagebrush (meters) Number of
Sagebrush Plants
1 38 1.15 120
2 42 1.16 129
3 45 1.14 137
4 51 1.15 145
If the soil is 53% sand next year, which of the following statements is the most likely prediction?
A.
The average height of the sagebrush will decrease.
B.
The average height of the sagebrush will increase.
C.
The size of the sagebrush population will increase.
Answers
Answer:
C
Explanation:
Answer:
C
Explanation:
I just had the question
What does a wave carry?
force
Answers
Dina is a paleclimatologist. She wants to review documents to assess climate data for her hometown. Which historical documents should Dina examine in order to asses the climate data?
Dina should examine _____ (newspaper articles, television documentaries, Shakespeare's plays) and _____ (radio programs, farmers' harvest yeild records, fashion magazines) to find historical climate data for her hometown.
Answers
Answer:
Newspaper articles and farmers harvest yield record
Explanation:
Paleclimatologists study climate where there are little records about the weather.
A paleoclimatologist such as Dina could use newspaper articles and farmers' harvest yield records to assess the historical climate data of her hometown. These sources provide firsthand accounts of weather changes and long-term climate trends.
Explanation:As a paleoclimatologist, Dina can gather historical climate data from several different sources. However, the most helpful documents would likely be newspaper articles and farmers' harvest yield records. Newspaper articles can provide firsthand accounts of weather phenomenons such as heatwaves, storms, droughts, and cold spells. Farmers' harvest yield records, on the other hand, can illuminate long-term climate trends. For instance, bumper crops can suggest periods of favorable weather, whereas poor yields could point to adverse climates. Therefore, these documents can provide valuable context for a climate study in her hometown.
Learn more about Paleoclimatology here:brainly.com/question/31800070
#SPJ3
How could a change in the size of the walleye pollock population cause an increase in the size of the moon jelly population?
Answers
u must have been a change to the birth rate or the death rate in the moon jelly population. Within a population, organisms are always being born and dying. ... zooplankton; a decrease in walleye pollock, leading to an increase in zooplanktonanation:
Final answer:
A decrease in the walleye pollock population can lead to an increase in the moon jelly population due to reduced predation on the jellies' food sources, demonstrating the interconnected nature of marine ecosystem dynamics.
Explanation:
Changes in the size of the walleye pollock population can impact the moon jelly population through a cascading effect in the marine food web. When the walleye pollock population decreases, possibly due to overfishing or environmental changes, their predation pressure on the jelly's prey also lessens. Consequently, with fewer predators consuming their food sources, moon jellies may experience a boom in the food available to them, such as zooplankton, allowing the jelly population to grow.
This demonstrates a fundamental concept in ecology where the populations of predators and prey are interconnected. Fluctuations in one part of the food web can lead to changes in other populations. Examples include the impact of PCB presence on higher trophic levels, the introduction of fish farms affecting local fish species, or how the size of fish can influence their reproductive success. Disruptive events, such as overfishing, can therefore not only affect the targeted species but also have unexpected consequences on ecosystem dynamics.
A person who is interested in learning more about how glands produce and release hormones might pursue a career in
Group of answer choices
reproductive science
gene therapy
neuroscience
endocrinology
Answers
endocrinology
Explanation:
the answer is likely to be endocrinology because it deals with glands and hormones
Ans: endocrinology
Explanation: The meaning of endocrinology is, endocrinology (from endocrine + -ology) is a branch of biology and medicine dealing with the endocrine system, its diseases, and its specific secretions are known as hormones.
A scientist sketches bacteria observed in different samples. Which question is the scientist most likely trying to answer about the bacteria? What methods of reproduction do they use? How large is the nucleus in each bacterium? Which types of bacterium are in each sample? How many cells make up each bacterium?
Answers
Answer:
Which types of bacterium are in each sample.
Explanation:
Different kinds of bacterium have different configuration. After sketching them, the scientist can then compare the configurations to the configuration categorized into different genuses.
Hope this helps!
The illustration shows many bacterial cells of various sizes and shapes. The pink bacteria stand in for rod-shaped bacteria, the dark-green bacteria for spiral-shaped bacteria. The correct option is C.
What is bacteria?Bacteria are common, largely free-living organisms that frequently only have one biological cell. They make up a significant portion of the prokaryotic microbial kingdom.
Bacteria, which are typically a few micrometers long and were among the first life forms to appear on Earth, are found in the majority of its habitats. Bacteria are prokaryotic, unicellular, members of the Monera kingdom.
Bacteria come in a wide range of sizes and forms, and they can be categorized based on these characteristics, such as rod-shaped, spherical, comma-shaped, spiral, or corkscrew.
Numerous bacterial cells of diverse shapes and sizes are depicted in the graphic.
The light-green bacteria represent spherical bacteria, the dark-green bacteria represent rod-shaped bacteria, and the pink bacteria represent spiral-shaped bacteria.
Thus, the correct option is C.
For more details regarding bacteria, visit:
https://brainly.com/question/8008968
#SPJ5
Your question seems incomplete, the missing image is attached below:
Which of the following is true in a climax community? * 10 points The community will constantly evolve and change If one species dies, a new species will fulfill the same role They are stable for a long time, with the same species maintaining their population Ut goes through a major change called "climax" every few hundred years
Answers
Answer:
It is true that climax communities are stable for a long time, with the same species maintaining their population.
Explanation:
Climax is the final, relatively stable state of successive ecosystems that occurs as a result of shifts, or successions, and to a large extent corresponds to the environmental conditions of a particular area. Climax depends on climatic factors, on local soil characteristics and on human impacts on nature.
Theoretically, the climax community can support itself indefinitely, all its internal components are balanced with each other, and it is in equilibrium with the physical environment.
Describe the general structure of the monomers
Answers
Answer:
The monomer is an amino acid, and I will describe it below. :)
Explanation:
Rubisco is an enzyme found in plants, and its job is to fix carbon. Since we know it is an enzyme, we also know it is a protein since pretty much all enzymes are proteins. The monomer of proteins is the amino acid.
The structure of an amino acid looks like this (see the picture). On one side we have a basic amino group, on the other side we have an acidic carboxyl group. The combination of the amino group and acid group gives us the name amino acid. Also notice that there is the R group. Each amino acid has the same basic structure (with the amino group and carboxyl group), but the unique R group is what gives the particular amino acid its unique characteristics. There are about 20 different kinds of R groups which is why there are 20 different types of amino acids.
So, having a non-polar R group would allow it to interact with a hydrophobic amino acid in another Rubisco molecule.
Monomers are the basic unit of polymers. They are composed of carbon, oxygen, and hydrogen atoms, joint by covalent bonds. There are different monomers which vary in structure, such as nucleotides and amino acids.
-------------------------------------------------------------------
Monomers are the basic unit of polymers. When many monomers join through chemical bonds, through the polymerization process, they form a polymer.
There are many types of monomeric molecules. To name a few, we can mention
Monomer Polymer
Monosaccharide ⇒ CarbohydratesFatty acid ⇒ LipidsAmino acid ⇒ ProteinsNucleotide ⇒ Nucleic acids
Monomers are organic molecules of reduced molecular mass. They are basic units relatively simple, with a defined structure.
Monomers are composed of carbon, oxygen, and hydrogen atoms, which establish covalent bonds.
For instance,
Nucleotides are monomers composed of a sugar molecule, joined with a phosphate group and a nitrogenated base.Amino acids are monomers composed of a central carbon, one hydrogen atom, one carboxyl group, one amine group, and one R group. The composition of the R group is what makes them different from each other.Every monomer has a free H atom and a hydroxyl group (-OH) in the extremes. When two monomers get together, the H atom and the -OH join to form a water molecule, which is released. The result is a polymer of two monomers and H₂O.
---------------------------------
Related link: https://brainly.com/question/19707569?referrer=searchResults
https://brainly.com/question/21230841?referrer=searchResults
In photosynthesis, what form of energy is sunlight converted to, and how is 1 point
this energy stored? *
Answers
Answer:
Sunlight is converted to chemical energy in the form of ATP, which is the main energy-storing molecule in living organisms.
Explanation:
.Many types of light come from the Sun, ranging from infrared to ultraviolet. There is a small range of wavelengths of light that humans can see within the larger spectrum of light. What do we call the range of the spectrum that humans can see?
visible light spectrum
high intensity spectrum
color wheel spectrum
Answers
Answer:
Visible light spectrum
Explanation:
Inform me if I'm wrong. Thanks!
2. Two Dalmatians had a large litter of 10 puppies. Seven of them have black spots, while 3 do not. What would the genotypes of the two parents need to be for this result? Create a Punnett square to support your answer.
Answers
Answer:
The parents would have both have to be Bb or heterozygous for black spots in order to have 7 out of 10 or about 75% of puppies with black spots.
have a good day
-HOPS
These sunbathers are warming up in the bright sun. This is an example of what type of thermal energy transfer? Question 18 options: conduction convection radiation
Answers
Answer:
I think it's Radiation!
Explanation:
The________biome is found in the Arctic circle. It has few plants or animals and is the only biome to contain permafrost.
Answers
Answer:
Arctic tundra
Explanation:
Answer:
Arctic tundra
Explanation:
Arctic tundra has permafrost, which is soil that is frozen year-round. The top layer of soil thaws in the summer, but deeper layers do not. As a result, water cannot soak into the ground.
How do consumers obtain the carbon that they need for their life processes?
They breathe it in from the surrounding air.
They break down the plants and animals they eat.
They absorb it from the surrounding soil.
They absorb it from water through their pores.
PLEASE HELP!!!
Answers
Explanation: Carbon is all around us. We exhale carbon dioxide and plants take then to later on break it down to only take the carbon and leave out the oxygen for us to take. Carbon is also a really basic structure in molecular organisms and in ourselves. Consumers may obtain carbon by eating plants and animals that already have the carbon in their system. They break it down while eating.
Consumers obtain the carbon that they need for their life processes by breaking down the plants and animals they eat.
How do consumers obtain energy?Consumers must consume other species in order to get their nutrition and energy. Animal feces and remnants are broken down by decomposers to provide energy.About 10% of the total solar energy is exclusively obtained by primary consumers from the producers they consume. The remaining 90% is either lost as heat or utilized by the producer for growth, reproduction, and survival. Secondary consumers eat primary consumers.The function of consumers in an ecosystem is to gather energy by feeding on other species and occasionally to transfer energy to other consumers.Other creatures in a food chain and ecosystem may be impacted by changes that affect consumers.learn more about consumers here:
https://brainly.com/question/17629073
#SPJ2
most trees in ___________ lose their leaves during winter
Answers
Answer:
The answer to that question would be: autumn or fall.
Explanation: That is the season before winter.
Glaciers erode land through which two processes?
chemical weathering and deflation
deflation and abrasion
plucking and abrasion
plucking and deflation
Answers
Answer:
Glaciers erode land through Plucking and Abrasion.
Glaciers are mass form of ice found in the high altitudes. During summer the glaciers melt down and rich source of pure water is obtained. Glaciers erode through two main processes and they are plucking and abrasion.
-Hops
The two main process by which Glaciers erode are;
Plucking and AbrasionWhat is glaciers?A glacier is a persistent body of dense ice that is constantly moving under its own weight.
Glaciers are mass form of ice found in the high altitudes. Glaciers is affected by temperature. During summer the glaciers melt down and rich source of pure water is obtained.
Process by which glaciers erodeThe two main process by which Glaciers erode are;
Plucking and Abrasion.Thus, Glaciers erode land through plucking and abrasion.
Learn more about plucking and abrasion here: https://brainly.com/question/306723
What happens to sedimentary rocks on Earth’s surface?
Answers
Answer:
Because erosion only happens on the earth's surface sedimentary rocks are only formed on the earth's surface. Sedimentary rocks will be changed into igneous and metamorphic rocks if the sedimentary rocks are buried deep below the earth's surface.
Explanation: