Answer:C2H6)
Explanation:
Answer:
C2H6O
Explanation:
. Your lab technician was to determine the ash content of buttermilk by conventional dry ashing. The technician weighed 5 g of liquid buttermilk into one weighed platinum crucible, immediately put the crucible into the muffle furnace using a pair of all stainless steel tongs, and ashed the sample for 48 h at 800 °C. The crucible was removed from the muffle furnace and set on a rack in the open until it was cool enough to reweigh. (4 marks)
a. What errors were made in the preceding method (there were several)?
b. What were the likely results of these errors?
Answer:
Ashing process is done to evaluate the ash content present in petroleum or other proucts, so that they can be used for certain applications
The two major types of ashing process that includes dry ashing and wet ashing and can be performed using microwave systems or conventional means.
a. errors made in the preceding method while determining the ash content of buttermilk by conventional dry ashing are as following:
Buttermilk should not immediatly put into muffle immediatley, it should be boiled first to avoid splatter.Temperature should be between 500 to 600 degree celcius at high temperature teh ash content can be loss.The sample should be ashed for 12-18 hrs , more than this can damage the required ash content.platinum tip should be used in place of stainless steel because platinum has a lower concomitant tip impedance than stainless stell, so less reactive to ash.The ash should put in dessicator and not allow to kept in open because ash can react with the humidity in teh atmosphere.b. The result that occur due to above errors such as the temperature, time, tongs and leaving ash in open will manipulate the final ash content and its application can be harmful for humans and for other purpose if it will be used.
which species is the banana most closely related to?
lemon
onion
radish
seaweed
Answer:
onion
Explanation:
"Onions are most closely related to a) banana. Onions are part of the Amaryllidaceae family and bananas are part of the Musaceae family. They are both monocots, meaning the have one cotyledon, parallel leaf veins, and flower petals in multiples of three, among other distinctive characteristics. "
Answer:
Onions are most closely related to a) banana. Onions are part of the Amaryllidaceae family and bananas are part of the Musaceae family. They are both mono cots, meaning the have one cotyledon, parallel leaf veins, and flower petals in multiples of three, among other distinctive characteristics.
Hope this helps!
Please give as brainliest answer!!
Thanks!
Explanation:
g What basic characteristics do we generally expect to find in all things that qualify as being alive? Question 1 options: 1) an ability to: reason, make polymers and repair damage. 2) an ability to: reproduce, respond to stimuli and repair damage. 3) an ability to: avoid pain, move from one place to another and evolve. 4) an ability to: capture energy from sun light, move from one place to another and reshape its environment. 5) an ability to be more ordered than their surroundings, respond to stimuli, and capture energy from sunlight.
Answer:
Number 2: an ability to: reproduce, respond to stimuli and repair damage.
Explanation:
Some basic characteristics of all living things in general which they all have in common include:
The ability to reproduce (reproduction). All living things reproduce...
Ability to respond to stimuli (irritability)
Ability to repair damage: this is involved with cells in the organisms and to stay alive all organismsin general areade up of cells which has the ability to be repaired if damaged.
The outermost cells of the skin die and slough off because
Answer:
Explanation:
The keratinocytes: cells found in the outermost layer of the epidermis that produces fibrous protein which gives hair, nails, and skin their hardness and water-resistant properties dies as a result of their distance from the rich blood supply the cells of the next layer lie on top off. Due to less nutrients and oxygen, these cells die as they are pushed towards the surface of our skin.
What species does the mosquito belong to?
Answer:
Insects
Explanation:
Answer:
flies (order Diptera). Within Diptera they constitute the family Culicidae
Explanation:
True or False. A cyclone, typhoon and hurricane are all the same type of storm.
*
Answer:
True!
Explanation:
They are the same meaning, but said in different locations.
Answer:
true
Explanation:
they are all the same thing just different names depending on where or how powerful it is
when a cell's cytoplasm divides
A. cytokinesis
B.mitosis
C. interphase
Answer:
cytokinesis
Explanation:
sorry if wrong
Which resource is found in large quantities in China and is also imported into China from other countries?
tungsten
pearls
coal
timber
Answer:
Coal
Explanation:
China fulfills its demand for coal by purchasing it from regional neighbors. In 2017, its coal imports mainly came from Australia (79.9 million tons), Indonesia (35.2 million tons), Mongolia (33.5 million tons), and Russia (25.3 million tons).
Hope this helps
Have a great day!
Which of the following statements about oxidative phosphorylation by ATP synthase is FALSE? A) The electrochemical gradient across the inner mitochondrial membrane generated by electron flow is used to synthesize ATP. B) Uncouplers dissipate the electrochemical gradient but electron transport continues without ATP production. C) Inhibitors disrupt electron flow as well as ATP synthesis. D) A proton gradient alone without a corresponding energy input is not sufficient to drive the synthesis of ATP. E) ATP synthesis occurs via simultaneous conformational changes in protein subunits containing catalytic sites.
Answer
D)A proton gradient alone without a corresponding energy input is not sufficient to drive the synthesis of ATP
Explanation:
Oxidative phosphorylation reffers to metabolic pathway whereby enzyme is used by the cell to achieve nutrient oxidation, so that chemical energy of molecular oxygen is released as a result of this, adenosine triphosphate (ATP) is manufactured. oxidative phosphorylation is seen in all organisms that are aerobic in nature and it occur in the mitochondria of all eukaryotic organisms. There is electron transfer during oxidative phosphorylation, the electrons moves from the donor to the receptor and this is known as redox reaction, as a result of this energy is released, and this energy is used for formation of ATP.
Therefore,among all the options, A proton gradient alone without a corresponding energy input is not sufficient to drive the synthesis of ATP is the false statement.
The immunity rate is the ____________ variable. The number of people affected by the disease is the ___________ variable.
Answer: 1. independent , 2 . dependent
The immunity rate is an independent variable. The number of people affected by the disease is the dependent variable.
What is immune system?
The immune system protects our body from foreign invaders like bacteria, viruses, and fungi, and other toxins.
In general 2 types of the immune system observed in human body.
The innate immune system rapid inheritable response system consist major organs like skin, the eye's cornea, and the mucous membrane that lines the respiratory, gastrointestinal, and genitourinary tracts.
Secondly, the acquired immune system work with the innate system to make a special proteins named antibodies to protect our body from a specific invader.
Human immune system show variation in their production of immune components like cytokines play critical roles and it vary from person to person.
Hence, The immunity rate is an independent variable. The number of people affected by the disease is the dependent variable.
Learn more about cell membrane, here:
https://brainly.com/question/12491336
#SPJ5
WILL GIVE BRAINLIEST!!
How does the resulting cell at the end of asexual reproduction compare to the original cell
from the beginning of asexual reproduction?
Much of the Florida landscape is built upon limestone. Frequent rains seep down and erode the limestone as the rainwater travels to underground caverns or aquifers. Which of the following landforms could be created as a result of this process?
Answer:
potholes/ sinkholes. most likely sink holes. i dont have options
Explanation:
Select all the following that describe isotopes of an element
_ Different numbers of neutrons
_ Different mass numbers
_ Different atomic numbers
_ Different numbers of protons
Answer: different number of neutrons and different mass numbers
Explanation:
The statements that describe isotopes of an element are:
Different numbers of neutrons.Different mass numbers.What is an isotope?An isotope is defined as varieties of atoms that have the same atomic number and therefore constitute the same element even though they have different mass numbers.
Characteristics of an isotope of an elementAtoms that are isotopes of each other have the same number of protons in the nucleus.They are found in the same place within the periodic table.Therefore, we can conclude that the isotopes of an element are atoms with the same atomic number but different mass numbers.
Learn more about the isotopes of an element here: https://brainly.com/question/18586743
e:
Scientists think the earth is approximately how old?
2 billion years
3 billion years
for 4 12 billion years
612 billion years
Scientists think the earth is approximately how old
Answer:
4 billion
Explanation:
Answer:
4 billion
Explanation:
4 billion
How is food moved through the gut?
a. By peristalsis c. By waves of liquid
b. By gravity
d. Movement
Explanation:
a. By peristalsis
..................
Recessive sex-linked traits such as color blindness appear more frequently in
males because
A. males inherit only one sex chromosome.
B. males inherit two copies of every sex-linked allele.
C. sex-linked alleles are carried only on Y chromosomes.
D. males inherit only one sex-linked allele.
75 POINTS!!! One reason male peacocks spread their tail feathers is to attract a mate. How does choosing a male with a bright, full tail increase a peahen’s chance of producing healthy peachicks?
Answer:
They have greater health conditions
Explanation:
if they are bright, they are healthy
Answer:
Typically, if a peacock has a bright tail with many feathers and eyespots, a female will choose him. These tail features indicate that the peacock may be healthier than other males and, therefore, produce healthier peachicks.
Explanation:
This is the sample response.
2.In what way is the plant’s vascular system like ours?
3.How have scientist classified all plants?
4.Give 2 examples of non-vascular plants. (This will take a little extra research.)
5.List the 2 major vascular tissues of a plant and tell what they do.
1.
2.
6.List the reactants and products of photosynthesis?
Reactants:
Products:
7.Both plant and animal cells have organelles. What are organelles?
8.Which organelle is responsible for photosynthesis?
9.Why is it incorrect to say plants “breathe” Carbon dioxide (CO2)?
10.Where would you expect to find plant cell with a high number of chloroplast?
11.What are the stomata and why are they important to the plant?
12.What is the job of the guard cells?
13.The venus fly trap or the pitcher plant are still considered plants. Why do they “eat” insects?
14 Your friend thinks mistletoe is normal plant. How could you explain why it is NOT considered a “normal” plant?
Answer:
2.The human circular system does pretty much the
same thing as a plant but the plant can also reproduce oxygen. The
human needs air so does a plant to live and make more air. The
human needs food so does a plant to stay healthy. The human needs
to drink water to live too so does the plant to stay alive
otherwise it will rot and fall apart.
Explanation:
When a plant generates food through photosynthesis, this food
A.
is always used as soon as it is converted into a form the plant can use.
OB
can be used immediately or stored for later use.
C.
can cause the plant to gain excess layers of fat.
OD
is stored for a short period of time, usually about three weeks,
Answer:
B:because plant will make the food,store it,or eat it.usually the plant will stored the food for the winter,because of the soil being frozen and barely any sunlight,it will make it hard for the plant to make more food during photosynthesis,sometimes the plants will die but come back when it is springtime.Once food is made it is used or saved for later use for energy.
Answer:
can be used immediately or stored for later use.
Explanation:
Energy generated through photosynthesis can be used immediately or stored for later use depending on the needs of the plant in its environment.
Sometimes, a plant needs to immediately put this energy into growing new branches or leaves. Other times, such as when a cold winter is approaching, it might be better for the plant to store the energy for later use
Determine whether each activity impacts land resources in a positive or negative way. Drag each term to the correct
category.
desertification
Positive Impacts
Negative impacts
reforestation
laws and regulation
habitat restoration
erosion
urbanization
deforestation
Answer:
desertification - negative impacts
Reforestation - positive impacts
laws and regulation - positive/negative impacts
habitat restoration - positive impacts
erosion - negative impacts
Urbanization - negative impacts
deforestation - negative impacts
Explanation:
Desertification is a process in which productive lands become a dry, unproductive one as a result of humans or natural activities such as drought, deforestation, etc. It impacts land resources negatively in that land generally becomes unproductive and unsupportive to other lives.
Reforestation is a process of artificially creating forest where one has been removed or where none existed before. It involves the planting of trees and leads to the creation of new land resources such as habitats, water sheds, etc.
Laws and regulations can impact land resources either positively or negatively depending on the type of laws. Laws that promote land conservation positively impact land resources while those that promote the wanton use of lands negative impact land resources.
Habitat restoration refers to activities geared towards restoring habitats of organisms that have been degraded by human or natural activities. Habitat restoration positively impacts land resources as natural processes are directly impacted positively.
Erosion involves the removal of topmost layer of soils by running water or wind. It negatively impacts land resources by rendering land unproductive impacting the protective nature of soil on other resources such as watershed, etc.
Urbanization refers to the process of actively developing an area vis a vis the construction of more buildings and other infrastructures to make a place more urban. Land resources are negatively impacted in the process as most often requires the conversion of lands to non-forested uses.
Deforestation is the removal of forest layers for non-forest uses. It negatively impacts land resources such as habitat removal, lower biological diversity, protection of water sheds etc.
Answer:
Here
Explanation:
18. Some groups of organisms work together to stay safe or to take down prey. What do we
call this?
Answer: Mutualistic.
Explanation:
In the conifer forest just below the alpine zone of a mountain top, two closely related species of birds that feed on small flying insects have been living together for millions of years. A local naturalist notices that the beak sizes differ on the two birds. The species that eats mosquitoes has a small delicate beak, and the species that eats robber flies (bigger than mosquitoes) has a very large beak. By accident, the naturalist stumbles upon a fossilized bird on the mountain that looks like it could be the ancestor of both species except its beak is neither small nor large, but intermediate in size. What principle could be at work in shaping the beaks of these birds? a. competition b. ecological niche development c. coevolution d. character displacement e. all of the above
Answer: d. character displacement
Explanation:
Character Displacement this is an evolutionary divergence which usually occurs when two similar species inhabit the same environment. This circumstance occurs where differences among similar species whose circulation in an environment overlap geographically are feature in regions where the species co-occur, but tend to be minimized or lost where the species' circulations do not overlap. Which is same case as that of the birds.
Help with the picture
what is a range of the lowest temperatures found at the top of the tropopause
Answer:
62°F (17°C) to -60°F (-51°C) at the tropopause.
Meiosis reduces the chromosome number by
Answer:
i believe it's half and produces four gamete cells
Explanation:
Why does the human use a large amount of energy when exposed to cold temperature for a long period of time
Answer:
So they won't be exposed to hypothermia.
Explanation:
Hypothermia is when your body's temperature drops. Your body's energy is a way of keeping warm
A lot of echinoderms are named after flowers true or false
Answer:
False, it is only represented by one class: Crinoidea (sea lilies).
Explanation:
Echinoderms (phylum Echinodermata) are marine organisms that comprises more than 6,000 species. These animals are deuterostomes that are differentiated to have an ambulacral vascular system and a pentameric symmetry. Echinoderms are divided in the following classes: 1- Ophiuroidea (snake stars), 2-Asteroidea (sea stars), 3-Crinoidea (sea lilies), 4-Holothuroidea (sea cucumbers) and 5-Echinoidea (sea urchins), which can be easily distinguished by anatomical and ecological characteristics.
If the bubbles given off by the plants were collected and tested, the gas present would MOST likely be
(A) oxygen
(B) hydrogen
(C) nitrogen
(D) carbon dioxide
Answer: D
Explanation: To prove that oxygen is a by-product of photosynthesis, you can set up an experiment with an aquatic plant and capture the gas it emits in response to photosynthesis.
ATP is formed from the breakdown of glucose in _____(1)_____, while glucose is formed from solar energy in _____(2)_____.
Answer:
(1) cellular respiration, (2) photosynthesis
Explanation:
The codon, CAG, is being carried by a mRNA strand into the
cytoplasm. By using the Codon Chart, what amino acid will it code
for?
