Answer:
0.0556 mL of 90 M HCl would be taken and 9.944 mL distilled water added to make 0.5 M, 10 mL HCl solution.
Explanation:
From the dilution equation:
Initial molarity (m1) x initial volume (v1) = final molarity (m2) x final volume (v2).
In this case, m1 = 90 M, v1 = ?, m2 = 0.5 M, and v2 = 10 mL
v1 = m2 x v2/ m1 = 0.5 x 0.01/90 = 0.0000556 L
v1 = 0.0556 mL
This means that the initial volume of 90 M HCl to be taken is 0.0556 mL. Since the final volume to be prepared is 10 mL,
10 - 0.0556 = 9.944 mL
Hence, 0.0556 mL of 90 M HCl would be taken and 9.944 mL distilled water added to make 0.5 M, 10 mL HCl solution.
Give the two ways nitrogen can be fixated so plants can use it to grow.
[tex]\huge\mathfrak\red {Answer:}[/tex]
FixationNitrogen in its gaseous form (N2) can’t be used by most living things. It has to be converted or ‘fixed’ to a more usable form through a process called fixation. There are three ways nitrogen can be fixed to be useful for living things:
Biologically:Nitrogen gas (N2) diffuses into the soil from the atmosphere, and species of bacteria convert this nitrogen to ammonium ions (NH4+), which can be used by plants. Legumes (such as clover and lupins) are often grown by farmers because they have nodules on their roots that contain nitrogen-fixing bacteria.
Through lightning:Lightning converts atmospheric nitrogen into ammonia and nitrate (NO3) that enter soil with rainfall.
[tex]\mathfrak\purple {Hope\: this\: helps\: you...}[/tex]
how natural selection could lead to the trait distribution?
Imagine green and yellow bugs live in the grass. Their predator is the speckled finch. Now, the finch flies down to grab some tasty beetles, and which ones does it go for? The yellow ones. The green beetles, due to their natural grass camouflage will have a much smaller chance of being eaten than the yellow ones which stand out. While the yellow ones get eaten the green thrive and reproduce. Soon, there won't be anymore yellow bugs. They'll most likely die out or breed with the green ones to make offspring of a more green color.
Ms. Brown wanted to see if giving her students chocolate before tests helped them get better scores. She divided her class randomly into two groups. Group A was given chocolate right before their test and Group B was given nothing before the test. The test average for Group A was 85% and the test average for Groups B was 64%. What is the independent variable?
A. Group A
B. Group B
C. Chocolate
D. Ms. Brown
Answer:
group A
Explanation:
An independent variable is a variable in a functional relation wherein the value is not affected by other variables. That is in contrast to a dependent variable that is influenced by other variables. independent variable science definition: the variable in a functional relation wherein the value is independent.
2. Rob is in charge of waxing the floor at the local mall. He wants to test a new brand
of floor wax called Squeaky Clean. Rob waxes 20 floor tiles with Squeaky Clean and
20 tiles with the original wax brand. After one week he counts the number of
scratches on the floor.
a. Independent Variable:
b. Dependent Variable:
C. Control Group:
d. Constant:
It is an independent variable. Thus option A is correct.
What are the key difference between Independent and dependent Variable ?
The variable whose values are changed by researcher to get desired outcome is called an independent variable.
The variable, by changing its values to reciprocate change in the values of the independent variable is called the dependent variable.
The independent variable is act as the experiment controller whereas, the dependent variable act as experiment measure.
An independent variable is a cause whereas the dependent variable is an effect of that cause.
we can say in a linear regression, ‘y’ denotes dependent variable while ‘x’ denotes independent variable.
An independent variable does not rely on anything, while the dependent shows the effect, due to changes in independent variable.
Thus option A is correct.
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insulin is a polymer of a)fructose b)glucose c)mannose d)ribose
Answer:
fructose
Explanation:
a)fructose is the correct answer
Answer:
a) fructose
Explanation:
Can someone please help me?
Help!!!!A student reads that some pea plants have violet flowers, while some have white flowers. Breeding a pea plant with violet flowers with a pea plant with white flowers produces offspring,
some of which have violet flowers, while some have white flowers.
How do the offspring express the gene for flower color from the parent plants?
the random expression of one gene obtained from a single parent plant
the expression of one gene obtained from each parent plant
the expression of a gene that is inherited by any cell of the offspring
the random expression of a gene that is more numerous in the cells of the offspring
Answer:
its c. The expression of a gene that is inherited by any cell of the offspring
Explanation:
How many significant digits can be found in the value 540?
Answer:
2
Explanation:
What’s a hazard
A hazard that occurs unintentionally
True or false
I am a multicellular organism. I am heterotrophic and rely on oxygen to metabolize my food. I belong to Kingdom
Answer:
Kingdom Animalia
Explanation:
Kingdom Animalia is one of the seven kingdoms living organisms are classified into. The Kingdom contains organisms called ANIMALS. They are eukaryotic i.e. possess a membrane-bound nucleus. Animals are heterotrophic i.e. they rely on other organisms for their source of energy (food).
In order to break down this food via metabolism, animals need oxygen to do so. This process is called respiration, and it yields energy in form of ATP, which is used by their cells to carry out cellular functions. Therefore, a heterotrophic multicellular organism that relies on oxygen to metabolize its food belongs to KINGDOM ANIMALIA
Distinguish between catabolism and anabolism, giving an example of each reaction as endergonic or exergonic:
Answer: Anabolism builds complex molecules from simpler ones, while catabolism breaks large molecules into smaller ones.
Explanation:
a-Glycerol reacts with fatty acids to make lipids:
CH2OHCH(OH)CH2OH + C17H35COOH → CH2OHCH(OH)CH2OOCC17H35
Simple sugars combine to form disaccharides and water:
C6H12O6 + C6H12O6 → C12H22O11 + H2O
c-During cellular respiration, glucose and oxygen react to yield carbon dioxide and water
C6H12O6 + 6O2 → 6CO2 + 6H2O
In cells, hydroxide peroxide decomposes into water and oxygen:
2H2O2 → 2H2O + O2
What is pollination?
how many teeth do I have
Answer:
an adult has 32
Explanation:
Characteristics of a ant
Answer:
Their bodies are covered with a hard armor called the exoskeleton. Most ants are either red or black in color and length can be anywhere from 1/3" to 1/2". Like other insects, they have six legs; each with three joints. Ants have large heads with compound eyes, elbowed antennae, and powerful jaws.
Explanation:
The ant is an arthropod that has the characteristics of arthropods, such as the jointed legs, the exoskeleton that protects it, and the segmented body; apart from that, it has an antenna, etc.
What are the features of the ants?The ants belong to arthropods, and the arthropods are non chordates. The special feature of the arthropods is that their bodies are segmented into three parts, such as the head, thorax, and abdomen, and they have an exoskeleton similar to that of the ant. Ants are eusocial animals, meaning they live in groups. Different types of ants are present in different geographical locations, and some of them produce toxins that are harmful to other animals.
Hence, the ant is an arthropod that has the characteristics of arthropods, such as the jointed legs, the exoskeleton that protects it, the segmented body, etc.
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what essential elements are found in large molecules
Answer: carbon, hydrogen, oxygen, nitrogen, phosphorus, and sulfur.
Explanation:
Answer:
I'm from Brazil, I will answer in English and Portuguese for you to train
CHONPS (ou apenas CHON) é um acrônimo mnemônico para os seis elementos químicos mais frequentes na composição dos seres vivos (ou os mais essenciais): Carbono (C), Hidrogênio (H), Oxigênio (O), Nitrogênio (N), Fósforo (P) e Enxofre (S). Estão também entre os mais abundantes do planeta.
CHONPS (or just CHON) is a mnemonic acronym for the six most common chemical elements in the composition of living things (or the most essential): Carbon (C), Hydrogen (H), Oxygen (O), Nitrogen (N), Phosphorus (P) and Sulfur (S). They are also among the most abundant on the planet.
Most rocks on Earth began as which type of rock?
Answer:Well, rocks were originally sediments, which were compacted under high pressure. Igneous rocks formed when liquid magma or lava—magma that has emerged onto the surface of the Earth—cooled and hardened.
Explanation:
Which organic molecule is part of an enzyme?
A. fatty acid
B. nucleotide
C. amino acid
D. monosaccharide
Answer:
C
Explanation:
Proteins are organic molecule in a enzyme, but amino acids are a type of protein. The answer is C.
11. Consider the sequence shown, determine the complementary RNA and the amino acids
DNA
TAC
GTA
ΤΤΤ
G CA
CAC
RNA
Amino Acids
Number 11. Please help
The explanation is as follows:
The following information should be considered:
DNA has four nucleotides namely: Adenine, Gunanine, Thymine and Cytosine. While on the other hand, RNA has Uracil in place of THymine. The process of copying the information from DNA into RNA is called transcription, whereas translating the nucleotide sequence into amino acid sequence is called translation.
DNA TAC GTA TTT GCA CAC
RNA AUG CAU AAA CGU GUG
Amino Methionine Histidine Lysine Arginine Valine
acids (start codon)
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Part of the cell membrane that transports materials ?
worn away statuses mechanical or chemical weatherting
An adult panda bear must eat at least 30 pounds of bamboo in a day. There are 12 adult pandas living in part of a
bamboo forest.
How many pounds of bamboo, at minimum, must be available each day in order to support the population of
pandas?
12
30
348
360
Answer: (D) 360
Explanation:
An adult panda bear must eat at least 30 pounds of bamboo in a day. There are 12 adult pandas living in part of a bamboo forest 360 pounds must available each day.
Why does panda only eat bamboo?Panda comes under the specialist because its eats only bamboo because it's present abundantly and Thus they don't have to fight with other animals to get it.
Bamboo is rich in fibre but has less nutrients, so pandas have to eat 20 to 40 pounds of the elements every day just to get by.
Thus, option "D" is correct, 360.
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Using complete sentences, compare and contrast the terms living and biotic. In your response, illustrate using examples and appropriate compare-and-contrast vocabulary
Both living things and biotic factors can be alive.
Unlike living things, biotic things may not be alive; they may have once lived or came from something living.
I included an example of something both living and biotic, such as flowers.
I included an example of something biotic, but not living, such as paper.
I used compare-and-contrast vocabulary.
Explanation:
As you all know that living is a synonym for biotic, as both discuss the measures of life. It significantly includes plants, animals, humans, predators, etc.
What is biotic?Biotic may be defined as something that is closely related to living organisms or something that is directly derived through the action of living organisms.
As compared to living, biotics may not always be alive, but it talks for a long period. Biotic is something that has once lived or emanated from something living.
Examples like plants, animals including humans are categorized under the category of living, while products such as rubber, latex, cow dung, paper, etc are biotic products that are not living.
Therefore, as you all know that living is a synonym for biotic, as both discuss the measures of life. It significantly includes plants, animals, humans, predators, etc.
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app, ck-12 subject, carbohydrates 9th grade. monosaccharides and disaccharides are also referred to as simple ___?___.
Answer:
simple sugars and proteins or lipids
Explanation:
they both have these
Which of the following is NOT a subatomic particle of an atom?
Neutron
Nuclear wall
Proton
Electron
Answer: nuclear wall
Which provides long-term energy storage?
glycogen, because it is a polysaccharide
glucagon, because it is a complex protein
glucose, because it is a monosaccharide
O cellulose, because it is a complex carbohydrate
Answer:
glycogen
Explanation:
because it is a polysaccharide
Glycogen because it is a polysaccharide which provides long-term energy storage. So, the correct option is A.
What is Glycogen?Glycogen is defined as a multi-branched polysaccharide of glucose that serves as energy storage in animals, fungi and bacteria which is the main storage form of glucose in the human body.
The body mainly uses glycogen stores in the liver to help regulate blood glucose which is sugar levels where the body normally regulates blood glucose mainly with the hormones glucagon and insulin. When the blood sugar level becomes too low, which is called hypoglycemia, the pancreas releases more glucagon.
Thus, Glycogen because it is a polysaccharide which provides long-term energy storage. So, the correct option is A.
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Help me anyone if you would please
Answer:
A
Explanation:
How is DNA expression regulated in individual cells?
Answer:
Gene regulation can occur at any point during gene expression, but most commonly occurs at the level of transcription (when the information in a gene's DNA is transferred to mRNA). Signals from the environment or from other cells activate proteins called transcription factors.
Explanation:
Gene regulation can take place at any stage of gene expression, although it often happens during transcription when the data from a gene's DNA is converted to mRNA.
What is gene regulation?Proteins known as transcription factors are activated by signals from the environment or from other cells.
Limiting the amount of mRNA that is generated from a certain gene regulates transcription.
Eukaryotic gene expression is regulated by the nucleus-based mechanisms of transcription and RNA processing and the cytoplasm-based activities of protein translation.
Therefore, the translation of mRNA into proteins is regulated by post-transcriptional processes, which constitute the second level of regulation.
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When the population of rabbits falls to 400, what will be the population of foxes if the trend continues?
A) 400
B) 500
C) 600
D) 700
Answer:
400?
Explanation:
because if the foxs dont have food then they will starve and die as well
HURRY PLS HELP ASAP
Which substances compose the backbone of DNA?
sugars and lipids
phosphates and amino acids
sugars and phosphates
lipids and proteins
Answer:
sugars and phosphate compose backbone of dna
Answer:
sugars and phosphates
Explanation:
c
A teacher proposed that her class should consider using a jigsaw puzzle as a model of a scientific theory. The completed puzzle represents the theory and the connecting puzzle pieces represent the individual hypotheses that are connected in the theory. What is a limitation of a jigsaw puzzle as a model for scientific theory? Options: A) It does not represent the way that some hypotheses might be rejected. B) It gives the idea that established theories are not subject to change. C) It does not represent theories that do not involve any hypotheses. D) It gives the idea that information used to develop a theory is connected.