Answer:
There are currently 36 recognized biodiversity hotspots. These are Earth's most biologically rich—yet threatened—terrestrial regions. To qualify as a biodiversity hotspot, an area must meet two strict criteria: Contain at least 1,500 species of vascular plants found nowhere else on Earth (known as "endemic" species). The Andes Mountains Tropical Hotspot is the world's most diverse hotspot. About one-sixth of all plant species in the world live in this region. The New Zealand archipelago is another hotspot.
Explanation:
The molecule pictured below produced a blue color when tested with Benedict’s reagent, a yellow color when tested with IKI, and a violet color when tested with Biuret reagent. Based on the structure shown below and these chemical results, what kind of biomolecule is this? the molecule a blue color with benedicts reagent.no color change that given molecule is not a simple carbohydrate
Answer:
The molecule is a protein
Explanation:
When the molecule was tested with benedict's solution and a blue color was formed, that actually meant there was no colour change because the colour of benedict's solution is blue. Benedict's solution is used to test for the presence of reducing sugar, which changes it's colour to green, orange, yellow or even red; the fact that there was no colour change shows the molecule is not a reducing sugar.
Yellow colour when tested with IKI (Iodine-potassium iodide) also shows no colour change. IKI reagent is used to determine the presence of starch, which gives off a dark-blue colour if starch is present. Hence, absence of this dark-blue colour or observation of a yellow/orange colour shows the molecules is not starch.
Biuret reagent is used to test for peptide bonds in a molecule. In the presence of a peptide bond, the biuret reagent changes colour from blue to violet. The amino acids in proteins are held together by peptide bond, hence the biuret colour change shows that the biomolecule is a protein.
Which statement describes Redi’s experiment, which helped disprove spontaneous generation?
He examined covered and uncovered meat to determine that maggots came from eggs.
He heated milk to show that it could destroy bacteria.
He wrote a book on how cells come from other cells through reproduction.
He showed that the shape of a flask was important to the experiment.
Answer:
a
Explanation:
Answer:
A
Explanation: He examined covered and uncovered meat to determine that maggots came from eggs.
DNA differs from RNA because DNA
contains the sugar ribose rather than the sugar deoxyribose.
consists of a single rather than a double polynucleotide strand.
contains phosphate groups not found in RNA.
contains thymine in place of uracil.
Answer:
Yes all above difference is correct
There are 12 apples 14 oranges and 16 bananas in a fruit basket.what is the ratio apples to bananas the answer choices are A 1:12 B 1:16 C 6:7 D 3:4 E 2:7
Answer:
The answer is A
Answer:
mannn this aint ittt
Explanation:
dawggg
to be possible answer to a scientific question a hypothesis must be a.testable b. unique c. written d. controlled
Which statement about ecological organization is correct?
O An organism is part of a community.
O A community is part of a population.
O An ecosystem is made up of organisms only
O Biosphere is a part of the ecosystem
Submit
Request Answer
Answer:
Biosphere is a part of the ecosystem
The correct statement about ecological organization is:
An organism is part of a community.The levels of ecological organization are a hierarchy of categories that go from the micro to the macro (and vice versa), showing us different dimensions of analysis of living beings.
These levels are: organism, population, community, ecosystem, biosphere and biome.
The community is the level made up of a set of organisms of different species, which interact with each other in a specific area.
This includes life forms of all phyla: animals, plants, fungi, bacteria, etc. .
But in turn organisms interact, and these interactions can prevent some very similar species from coexisting (competitive exclusion principle), or the presence of a predator can cause two competitors to remain in low density and therefore there are no exclusion.
Therefore, we can conclude that the organisms of any species (plant or animal) are part of a community and that they coexist in a defined space (the biotope) that offers the external conditions necessary for their survival.
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When NaCl is added to water, its bond will break. If C6H12O6 (glucose) is added to water, its bonds will not break.
True
False
Answer:
False.
Explanation:
The bonds become so strong that they make the glucose molecules separate.
Which of the following orders of animals are vegetarians?
a. Proboscidea
b. Artiodactyla
c. Lagomorpha
d. All of the above
Answer: Option D.
All of the above.
Explanation:
Proboscidea , Artiodactyla , Lagomorpha are all vegetarians and vegetarians are animals that feed on plants i.e grasses, shrubs e.t.c.
These order of animals are refered to herbivorous animals i.e animals that feed on plants and they have two pairs of growing incisors,molars and premolars.
Members of lagomorphs are rodents, hares, rabbit, pikas e.t.c.
Artiodactyla members are cattles, camels, pigs e.t.c. These order have tusks for defending themselves.
Proboscidea include elephants.
Specific steps for big 5
Answer:
study diligently, often pray according to beliefs, often read, do not delay homework, and ask permission from parents to always be blessed
What is a secondary crime scene?
Answer:hope this helps
SECONDARY CRIME SCENES. A location related to the crime but not where the actual crime took place. Sometimes this is the only scene that investigator's know about. There can be MANY secondary crime scenes.
Explanation:
Which one of the following codons is recognized by this tRNA?a) 5' UUC 3'b) 5' CTT 3'c) 5' CUU 3'd) 5' TTC 3'
Hello. This question is incomplete. The full question is:
A tRNA anticodon is 5' GAA 3'.
Which one of the following codons is recognized by this tRNA?a) 5' UUC 3'b) 5' CTT 3'c) 5' CUU 3'd) 5' TTC 3'
Answer:
a) 5' UUC 3'
Explanation:
Anticodons are sequences of nitrogenous bases that establish complementarity with sequences of nitrogenous bases in a codon.
As you know, mRNA has the nitrogenous bases Adenine (A), cytosine (C), guanine (G) and uracil (U). In this system, guanine is supplemented with cytosine and adenine is supplemented with uracil.
These bass are organized into codons, which are a set formed by 3 of these bases.
The tRNA has the same bases, but its codons must recognize and complement the codons of the mRNA, being then called Anticodons.
In this case, if a tRNA has the anticodon 5 'GAA 3', it must bind to codons 5 'UUC 3' in the mRNA.
What is the internal and external adaptation in a leaf for photosynthesis? Please give a clear short answer (prefer in bullet points). I will give brainliest to fastest answer
Answer:
They are adapted for photosynthesis by having a large surface area, and contain openings, called stomata to allow carbon dioxide into the leaf and oxygen out. ... The cells inside the leaf have water on their surface. Some of this water evaporates, and the water vapour can then escape from inside the leaf.
Answer:
▪︎leaf with large surface area
▪︎dark coloured leaf for maximum sunlight absorbtion
▪︎has stomata openings to allow carbon dioxide diffuse in the leaf
▪︎It has the green pigment :chloroplast inside to absorb sunlight
When adding more sucrose to a 0.7 M sucrose solution, why does it not dissolve as readily as it did at a lower molarity?
a) the ions in the solution interact with the sugar and that interferes with its solubility
b) the solubility of the solute depends on wether the solute has hydroxyl functional groups or not
c) the solute molecules adhere to the polar regions of the water molecules so there is no room for more sucrose molecules
d) hydrogen bonds in the water molecules change the electrical charge of the sugar molecule, which prevents it from dissolving further in the water
Answer:
c) the solute molecules adhere to the polar regions of the water molecules so there is no room for more sucrose molecules
Explanation:
A solution contains a solvent (water in this case) and a solute (sucrose in this case). A solution can either be saturated or unsaturated depending on whether it can still dissolve a solute or not.
According to this question, the 0.7 M sucrose solution does not dissolve the sucrose (solute) any longer. This implies that the sucrose solution is getting SATURATED. The saturation of the sucrose solution occurs because the amount of solutes is equating the amount of solvent in the solution.
The solubility of a solution depends upon polarity. The solute molecules (sucrose) adhere to the polar regions of the water molecules (solvent). When this occurs to the point where no other sucrose molecule can adhere, the solution becomes SATURATED so there is no room for more sucrose molecules.
application of genetics in to legal applications
Answer:
i cant understand your question define briefly
Explanation:
Genetics are used in legal, criminal cases in order to either prove the guilt or innocence of a particular person. DNA is left at crime scenes that can then be found and tested against people. Genetics might also be used in order to help prove an insanity plea (for example, if the person has a family history of disorders. That's something that can be found with DNA).
3. Label the three planes in the following image next to the three corresponding letters below the image.
CI
a)
hlwhos on this Imao ??
Answer:
The correct labels of the three planes are -
a. axial or transverse plane.
b. sagittal plane
c.. coronal plane
Explanation:
The human body can be divided into three planes on the basis of anatomy - the sagittal plane, the coronal plane, and the transverse plane
A sagittal plane is a longitudinal plane that divides the human body in the left and right parts.
A coronal plane is an anatomical plane that divides the body vertically into the back and front, ventral or dorsal (to be more specific).
An Axial or transverse plane, it is the plane that divides in the upper part of the body and lower part of the body.
Thus, the correct answer is -
a. axial or transverse plane.
b. sagittal plane
c. coronal plane
In a healthy, functioning ecosystem, chemicals and nutrients are constantly recycled and reused
True or false
What exercise is most appropriate for testing muscular endurance?
A. Push-up
B. Bench press
C. Back squat
D. Bicep curl
Answer:
Push ups
Explanation:
Muscular endurance is when the muscle have the ability to withstand and sustain contractions that is constantly occur for a long period of time. It include the amount of repeated single exercise that the muscle can endure without resting. It ensures muscular fitness, muscular strength and power.
A good example of muscular exercise is push up the ability to constantly do it for a long time without rest or stopping.
The push-up is the most appropriate exercise for testing muscular endurance. Therefore, the correct option is A.
Muscular endurance is the ability of a muscle or group of muscles to sustain repeated contractions over a prolonged period of time.
The push-up specifically targets the chest, shoulders, triceps, and core muscles. It requires maintaining a plank position and lowering and raising the body by bending and extending the elbows.
By performing as many push-ups as possible without compromising form, an individual can assess their muscular endurance level.
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What are the only types of
cells to contain a cell
membrane?
Answer:
Plant Cells
Explanation:
Why would specimens viewed with a compound microscope be thin and/or chemically cleared?
Answer:
A specimen has to be thin so that the light coming from the light source is able to pass through the specimen Specimens are sometimes stained with dyes so that they are easier to distinguish and find.
Explanation:
Sorry it took some time but i hope it helps!!
Which of the following is an organic molecule?
a. carbon dioxide (CO2)
b. water (H2O)
c. methane (CH4)
d. hydrochloric acid (HCl)
e. more than one of these is an organic molecule
name the blood vessels that convey blood to the brain
Answer:
Blood is supplied to the brain, face, and scalp via two major sets of vessels: the right and left common carotid arteries and the right and left vertebral arteries. The common carotid arteries have two divisions. The external carotid arteries supply the face and scalp with blood.
Explanation:
2. How is the pubic symphysis different in males and females?
How are producers, consumers, and decomposers categorized?
Answer:
Producers, consumers, and decomposers are organisms within ecosystems that are classified based on how they gain their nutrition
Explanation:
Producers such as plants make their own food, consumers such as animals eat plants and animals, and decomposers such as bacteria and fungi break down dead organic matter.
Answer:
Producers, consumers, and decomposers are organisms within ecosystems that are classified based on how they gain their nutrition. Producers such as plants make their own food, consumers such as animals eat plants and animals, and decomposers such as bacteria and fungi break down dead organic matter.
Explanation:
Which statement best compares and contrasts lipids and carbohydrates?
HURRY PLEASEE I HAVE TWO MINUTES JUST THE LETTER AWNSER
The correct answer is B. Both are used for energy storage, but only carbohydrates are used for short-term energy.
Explanation:
Carbohydrates and lipids are both biological macromolecules, which means they are essential for living organisms. Additionally, these are similar because they store energy. However, the type of energy they store is different.
Indeed, carbohydrates store short-term energy, which means carbohydrates are broken down a short time after ingested, and the energy in them is used. On the other hand, in lipids, the energy store is long-term energy, which means it is not consumed as fast as in carbohydrates. This occurs because lipids contain more energy. According to this, the correct statement is "Both are used for energy storage, but only carbohydrates are used for short-term energy".
Answer:
B
Explanation:
Both are used for energy storage, but only carbohydrates are used for short-term energy storage.
1 point
We all started as a single cell (zygote). This cell undergoes cell division
(mitosis) and over time becomes a fetus. This is an example of this
characteristic of life... *
We have evolved over time
We have grown and developed
We have DNA
We respond to our environment
Answer:
We have grown and developed
Explanation:

Compare pure water and coffee. Their pH differs by approximately
Answer:
They differ by two positions in the pH scale.
Explanation:
Hello,
In this case, since coffee has an pH of about 5 which is slightly acidic and water has a pH of 7, their pH differs by 2 approximately:
[tex]\Delta pH=pH_{water}-pH_{coffee}=7-5=2[/tex]
Such acidity in the coffee is caused by the presence of the well-known chlorogenic acid which is besides helpful for us towards reducing the degree of tiredness we eventually acquire along the day.
Best regards.
Chose the answer the why the location of chlorophyll plays an important role in the process of
Answer:
Chloroplast
Explanation:
Chlorophyll in the chloroplast is the natural pigment that give plants its green color. It is useful to plants in the process of photosynthesis, where it uses sunlight to nurture the plant and provide itself with necessary nutrients for fruition.
Which of these changes to the cell would cause the greatest reduction in the activity of the catalase?
CHOICES:
#1 a return of pH to the normal range
#2 A decrease in the concentration of hydrogen and oxygen
#3 an increase in the concentration of hydrogen peroxide
#4 an increase or decrease in PH beyond normal range
Answer:
#3 an increase in the concentration of hydrogen peroxide.
Explanation:
The changes to the cell that causes the greatest reduction in the activity of the catalase would be - #3 an increase in the concentration of hydrogen peroxide.
Catalase enzyme is present in both plant and animal cells. The catalase is mainly found in aerobic organisms. The substrate for the enzyme is hydrogen peroxide which is broken down into oxygen and water.
The hydrogen peroxide is harmful to the cell and very reactive. Its buildup can kill the cellto breakdown the hydrogen peroxide, the catalase enzyme catalyzes it and convert it into water and oxygenincrease of the hydrogen peroxide leads to a reduction in the activity of the catalase.A single molecule of the catalase can break down 40 million molecules of hydrogen peroxide per minute.Thus, the correct answer is - #3 an increase in the concentration of hydrogen peroxide.
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The sequence of amino acids in a protein can be though of as its _______ structure.
Answer:
molecular
Explanation:
Is Coronavirus alive? As in does it have all seven characteristics of a living thing? reproduction, ability to react to stimuli, growth & development, can process and use energy, regulation, organization/order, evolutionary adaptions
No, coronavirus is not living. viruses are not living.
Answer:
No
Explanation:
It can't do everything that is listed.
I hope that this helped.