Hand signals of the 8 Essential life Functions
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11. D
12. C
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What are two abiotic and two biotic conditions in a coral reef that provide the conditions necessary for it to have high biodiversity?
Answer:
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Explanation:
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Which of the following has no membrane-bound organelles and can reproduce asexually?
А
eukaryote
B
yeast
С
prokaryote
D
algae
Why are bacteria considered living, but not viruses? (Include at least 4 reasons)
Why are there many separate ecosystems in a rain forest?
A. There are three different seasons in a rain forest.
B. There are three levels of consigners in rain forests.
C. Rain forests have very few primary consumers.
D. Different conditions support different organisms.
Plant fibres obtained from _____________ and ___________.
Answer:
Plants fibers are obtained from cotton plants and jute plants.
Explanation:
The gel-like substance that is outside the nucleus and holds all of the organelles is known as
what do not a male and a female mosquito feed on the same matter?
determine the range corresponding to the domain 2
for the mapping f(x)=3x+1
Answer:
or, 3x+1=0 or, 1+0=3x or, 1=3x or, x=3-1 or, x=2
Explanation:
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Answer:
The virus lacks strcutures to replicate genetic material.
Explanation:
They can replicate it, but don't have structures to do it without the help of a cell. They USE the cell to replicate it but cannot do it themself.
Virus lacks genetic matrial? It has DNA.
Protective outer shell? Ptotection has nothing to do with it.
Movement? They cannot duplicate without cells.
Which statement about solar eclipses is false?
Select one:
a. They occur during the full moon phase.
b. They are rare.
c. They last only a few minutes.
d. They may be partial or total eclipses.
Check
I guess the answer is most likely b) they are rare.
solar eclipses can occur fairly often, sometimes 2-4 times a year
The statement about solar eclipses that is false is the statement that; "they occur during the full moon phase."
An eclipse is said to occur when one celestial body casts a shadow on another celestial body. A solar eclipse occurs when the moon comes in between the sun and the earth such that a shadow of the moon is cast on the earth. A solar eclipse may be partial or complete.
The statement about solar eclipses that is false is the statement that; "they occur during the full moon phase."
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Which of the following is essential to proper functioning of all prokaryotic and eukaryotic organisms?
A.) O2
B.) CO2
C.) ATP
D.)NaCI
Answer:
I think its B. CO2
Explanation:
Oxygen is only needed for eukaryotes so not A
ATP is the product of prokaryotes
And I highly doubt its salt
ATP is essential to the proper functioning of all prokaryotic and eukaryotic organisms.
For example, biochemical reactions in mitochondria switch power from fatty acids and pyruvate molecules into a power-wealthy molecule referred to as adenosine triphosphate (ATP). Subsequently, the relaxation of the organelles uses this ATP because of the supply of the power they want to operate.
Each organelle helps one-of-a-kind sports inside. Mitochondria, for example, are organelles that offer eukaryotes a maximum in their power with the aid of using generating power-wealthy molecules referred to as ATP. Prokaryotes lack mitochondria and rather produce their ATP on their floor membrane
What is enzyme synthesis?The feature of ATP synthase is to synthesize ATP from ADP and inorganic phosphate (Pi) withinside the F1 sector. This is viable because of power derived from a gradient of protons which move the internal mitochondrial membrane from the intermembrane area into the matrix via the Fo part of the enzyme.
Hence concluded that ATP is essential to the proper functioning of all prokaryotic and eukaryotic organisms.
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6. Which of the following is a defining characteristic of a prokaryotic
cell?
Answer: Prokaryotes lack an organized nucleus and other membrane bound organelles.
Explanation: DNA found in the central part of the cell, noticed by the name nucleoid.
An invasive species is a species that causes harm to other species by taking over a new ecosystem. Populations of invasive species tend to increase much faster than populations of other species. One reason that invasive species might be so successful is that they ?
Answer:
reproduce faster
Explanation:
you need to keep in mind, invasive species are completely new to their environment so the native species don't know how to react to this new species so the competition for their normal resources will be much harder to get than it usually would because they don't know anything ab the invader
what does an organism trophic level indicate about that organism ?
Answer:
The trophic level of an organism is the position it occupies in a food web. A food chain is a succession of organisms that eat other organisms and may, in turn, be eaten themselves. The trophic level of an organism is the number of steps it is from the start of the chain.
what must happen before a chemical recreation can begin?
Answer:
The activation energy must be reached. The catalyst makes lower energy pathways available.
Explanation:
what are several defenses that keep pathogens from getting inside the body
Answer:
The body has two lines of natural defense to protect against infection. The first are physical barriers, such as the skin, body secretions and mucous membranes. The second line of defense is the immune system. Specialized immune cells coordinate and execute attacks to kill germs that make it past the body's physical barriers.
A mixture of iron, salt and sand can be separated using a magnet, water, a filter and a hot plate. Think about this separation. The separation of this mixture
Answer:
Explanation:
This is an example of a mixture which can be separated with simple separation techniques based on the physical properties of the mixtures.Magnetism, and filtration and evaporation
Iron is a magnetic material,but salt and sand are not,Therefore,the iron can be separated from the mixture with the use of magnet.
Salt and sand are mixable.But salt is soluble in water,but sand is not.Therefore by adding the sand and salt to water,the salt will dissolve,in the water(solvent) to form a salt solution. But the sand can be separated out of the solution by filtration with the filter paper inserted into a funnel which allows the salt solution to pass through,while restricting the sand.
The sand would be removed by the filter paper,while solution passes through.
The salt solution and some sand residues is placed in evaporating dish and heated at low temperature. The water from the solution evaporates,leaving the salt behind.
A combination of two are more substances that is not chemically combined is called a mixture.
In order to separate a mixture of iron, salt and sand, we need a magnet, water, a filter and a hot plate. The magnet is brought close to the mixture and all the iron is removed.
Next, water is added. The water will dissolve the salt while the sand will settle beneath the vessel. The solution can now be filtered and the sand is removed. To recover the salt, the solution is heated using the hot plate until all the water is evaporated and the dry salt is recovered from solution.
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Describe the basic structure and functions of proteins.
Answer:
Each protein is made up of a unique number and order of amino acids. The protein that is created has a specific job to do or a specific tissue such as muscle tissue to create. The structure of amino acids is fairly simple. Each amino acid has an amino group at its core with a carboxyl group and a side chain attached.
Explanation:
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what is the function of DNA and RNA
Answer: DNA codes for our genotype, which is the genetic representation of out traits. There are multiple kinds of RNA but it is mostly used to aid the replication of DNA.
Explanation: DNA is the strand of nucleic acid, sugars and phosphate group, that is found in the nucleus and mitochondria of every cell. It codes for our genotype, which is essentially the written representation of our traits. There are multiple kinds of RNA but they are mostly used to replicate DNA, they are single stranded as opposed to the double stranded DNA and include the nitrogen base uracil (U), instead of thymine (T). mRNA, tRNA and dsRNA are commonly used to replicate and regulate the DNA sequence.
Answer:
The two main types of nucleic acids are DNA and RNA. Both DNA and RNA are made from nucleotides, each containing a five-carbon sugar backbone, a phosphate group, and a nitrogen base. DNA provides the code for the cell 's activities, while RNA converts that code into proteins to carry out cellular functions.
Explanation:
RNA:
The central dogma of molecular biology suggests that the primary role of RNA is to convert the information stored in DNA into proteins.
DNA:
The main role of DNA in the cell is the long-term storage of information. It is often compared to a blueprint, since it contains the instructions to construct other components of the cell, such as proteins and RNA molecules.
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Which factor will best help a scientist produce valid experimental results?
A. having many different independent and dependent variables.
B. graphing results by using both graphing calculators and computers.
C. using large sample sizes in multiple replications of an experiment.
D. reporting the data that were collected and evaluations of the experimental procedure.
Answer:
C Using large sample sizes and multiple replications of an experiment
Explanation:
What is the minimum level of protein structure for an enzyme?
Answer:
Primary Structure
Explanation:
The simplest level of protein structure, primary structure, is simply the sequence of amino acids in a polypeptide chain.
which statement describes one way that RNA differs from DNA?
a) one is a protein, and the other is a nucleic acid
b) they contain different five-carbon sugars and a different nitrogenous base c) they are both carbohydrates, but one is a polysaccharide
d) one provides energy, and the other carries genetic information
Answer:
b) they contain different five-carbon sugars and a different nitrogenous base
Explanation:
DNA is deoxyribonucleic acids contains thymine
RNA is ribonucleic acid and contain uracil
Darwin discovered twenty different species of finches in the Galapagos islands. He hypothesized that as new islands arose, finches
colonized the islands and rapidly changed into new species, depending on what food was available on each new island. The rapid
formation of many new species, as in this case, is called
Answer:
Adaption radiation
Explanation:
This process explains how organisms transform rapidly due to the changes within their environment. When a change occurs it created new challenges, new resources are available, as well open up to new environmental niches.
Which of the following organic molecules are classified as carbohydrates?
amino acids
O nucleotides
O sugars
O fatty acids
The organic molecules that are classified as carbohydrates are ; ( C ) Sugars
Carbohydrates are classified as monosaccharides, disaccharides, and polysaccharides. under the monosaccharides we have the simple sugar with formula ; C₆H₁₂O₆ .
When carbohydrates rich food substances are consumed they are broken down into sugar so that the human body can easily absorb it. therefore the organic molecules that can be classified as carbohydrates are sugars while proteins are broken down into amino acids.
Hence we can conclude that The organic molecule that is classified as carbohydrates is ; ( C ) Sugars
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What are some characteristics of the type of khoomii singing known as kargyraa?
Answer:
1. It produces a very deep sound.
2. It combines the vocal and vestibular folds at the same time.
3. It causes the vibration of the vestibular folds. A vibration cycle culminates at the second vibration.
4. There are basically two types, namely the Dag and Xovu styles.
5. It resembles a Tibetan Buddhist chant.
Explanation:
Khoomii, also known as Tuvan throat singing is a way of singing mostly characterized by the production of deep sounds and vibrations. A basic pitch which is supplemented by another pitch combine to produce the sound. It is sung by the locals in Siberia and Tuva.
Kargyraa is one of the four forms of this song and it typically involves the production of deep sounds and some vibrations of the vestibular folds at times. There are two basic types which are the Dag and Xovu. It also has a similarity to the chant produced by the Tibetan Buddhists.
An organism's ___________ adaptations are its physical traits that help it survive in its environment.
Question 2 options:
abiotic
energy
behavioral
structural
Find the volume of
this swimming pool:
Length = 12m,
Width = 5m
Height (or depth) = 5m.
А
B
300 m3
150 m3
3000 m3
Answer:
300 m3
Explanation:
l x w x h
12 x 5=60
60 x 5 = 300
Answer: 300 m3
Explanation: 12m × 5m × 5m = 300 m3
The formula for volume is length × width × height
1.0X10 to the negative 7th power mg
Answer:
1.0 × 10-7 milligrams
Explanation:
1.0 × 10-7 milligrams