Groups of cells working together form tissues, groups of tissues working together form organs, organs working together form organ systems, organ systems cooperating and working together form organisms.
Read this sentence by Ralph Ellison:
When I discover who I am, I'll be free.
The author uses the word discover to emphasize which idea about freedom?
A.
It requires a journey of self-knowledge.
B.
It's made possible through education.
C.
It means following a set path.
D.
It's an impossible task for everyone.
Answer:
D for connexus practice
Explanation:
which of the following is an example of a decomposer?
A. tree
B. hawk
C. rabbit
D. mushroom
I think it's D mushroom.
Answer: Mushroom is the answer
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Read the following scenario.
After getting their results in, a group of scientists went back and looked at their study. As planned, their experiment consisted of three groups. The first group received a new medicine at a normal dose, the second group received the medicine at half the dose, and the third group received the medicine at twice the dose.
Which of the following best describes what went wrong with the scientists’ study?
a. an improper experimental procedure
b. the lack of a control group
c. selection bias
d. human error
(its not a)
Answer:
the answer is B I think if I'm wrong I'm sorry hope this helps and have a good day.
In the given scenario, the best description of what actually went wrong with the scientists' study is the lack of a control group. Thus, the correct option will be B.
What is a scientific study?A scientific study or a scientific method can be generally referred to as a kind of study which involves a scientific theory, scientific models, experiments and the physical situations. Scientific studies may also refer to the scientific method, a body of the techniques for investigating the different phenomena, based on the empirical or measurable evidence that is a subject to the principles of logic and reasoning purpose.
In the given scenario, the best description which mentions what actually went wrong with the scientists' study is the lack of a control group in the study.
Therefore, the correct option will be B.
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ASAP HELP 100 POINTS + BRAINLIEST ASAP PLZ PLZ PLZ PLZ
Which descriptions can be used for sand on a beach?
abiotic factor, once living
biotic factor, living thing
biotic factor, nonliving thing
abiotic factor, nonliving thing
Answer:
D
Explanation:
It’s non living. And abiotic is also non living
Answer:
D: abiotic factor, nonliving thing
Explanation:
The model shows a mutation to a partial sequence of bases in a gene. Which type of mutation does the model demonstrate? *
Answer: Insertion
Explanation: I just took a quiz.
The given model is representing insertion mutation. The correct option is B.
What is insertion?A mutation is an alteration in an organism's DNA sequence. Mutations can occur as a result of mistakes in DNA replication all through cell division, mutagen exposure, or viral infection.
In genomics, an insertion is a type of mutation that incorporates the addition of one or maybe more nucleotides to a segment of DNA.
An insertion can entail the inclusion of any amount of nucleotides, ranging from one to an a whole chromosome.
An insertion, also known as an insertion mutation in genetics, is the addition of one or even more nucleotide base pairs to a DNA sequence. This is common in microsatellite areas due to DNA polymerase slippage.
In all events, single nucleotide insertions and deletions are the most common.
Thus, the correct option is B.
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isotopes are Adams of the same element with the same number of protons in a different number of
Answer:
electrons
Explanation:
Answer:
Isotopes are elements which have same atomic numbers but different atomic masses due to the difference in the neutron.
hope this helps.
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What would the Earth be like if it had no atmosphere?
Answer:
It would be silent. Sound requires a medium to transmit waves. You could feel vibrations from the ground, but you wouldn't hear anything.
Birds and planes would fall from the sky.
The sky would turn black. It's blue because of the atmosphere.
It would be a vacuum so All plant and animal life on the Earth's surface would die.
Even if survive you'd get a massive sunburn on exposed skin because the Earth's atmosphere is what filters solar radiation.
The rivers, lakes, and oceans would boil. Boiling occurs whenever vapor pressure of a liquid exceeds external pressure, in vacuum there is no pressure. Even if water still be there it would freeze.
Answer:
It would be like Mars. There wouldn't be any oxygen for living things
14. When the oxygen catastrophe occurred, which organisms died?
A. aerobic
B. facultative bacteria
C. anaerobic
D. all organisms
Answer:
B.
Explanation:
This type of transport uses energy and moves from low to high
concentration *
A:Diffusion
B:Osmosis
C:Facilitated Diffusion
D:Molecular Transport
Answer:
Molecular Transport
Explanation:
Diffusion , Osmosis , and Facilitated Diffusion have nothin to do with tranporting. So one can only assume its Molecular Transport by process of elimination.
Which of the following items are the main outputs, our products, of cellular
respiration? Select all correct
answers.
water
energy
oxygen
carbon dioxide
Answer:
water and carbon dioxide are by-products. ATP is the energy transformed from the process
Water and carbon dioxide items are the main outputs, our products, of cellular respiration.
What is Cellular respiration?A sequence of chemical processes known as cellular respiration convert glucose into ATP, which can then be used as energy for a variety of bodily functions.
Glycolysis, the citric acid cycle, and oxidative phosphorylation are the three basic processes that take place during cellular respiration. The citric acid cycle happens in the mitochondrial matrix, oxidative phosphorylation happens on the inner mitochondrial membrane, and glycolysis happens in the cytoplasm.
Glucose, ATP, and NAD+ are the initial reactants and ATP and H2O are the end products of cellular respiration. The enzymes phosphofructokinase-1, pyruvate dehydrogenase, and isocitrate dehydrogenase control the rate of cellular respiration.
Therefore, Water and carbon dioxide items are the main outputs, our products, of cellular respiration.
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Which of the following causes a physical change in the shape of an object?
Answer:
Any change that occurs without altering the chemical composition of a substance is a physical change. Physical changes can include changing the color, shape, state of matter, or volume of a substance. It is crucial to remember that physical changes never alter the chemical makeup.
Explanation:
I hope this helps a bit :3
The heart gets its own blood supply through the______ circulation
PLS HELP ME
Answer:
tricuspid valve.
Explanation:
1. When studying animal behavior, the distribution of organisms within a choice
chamber can be studied to identify animal preferences. 20 Isopods are
placed in a 2-choice choice chamber. A cotton ball dampened with distilled
water is placed in Chamber A; A dry cotton ball is placed in Chamber B.
After 15 minutes 2 Isopods are located in Chamber B, and 18 isopods are found
in Chamber A. Perform the chi-squared test to determine if the distribution
of isopods is significant or due to random chance. (3 points)
Answer:
The distribution of isopods is statistically significant.
Explanation:
H₀= Individuals will be equally distributed
H₁ = Individuals will not be equally distributed.
Chi square= ∑ ((O-E)²/E)∑ is the sum of the terms
O are the Observed individuals: 2 in chamber B, and 18 in chamber A.
E are the Expected individuals: 10 in each chamber
X² = ∑ ((O-E)²/E) = ((2 - 10)²/10) + ((18 - 10)²/10) = 6.4 + 6.4 = 12.8
X² = 12.8
Freedom degrees = K – 1 = 2 - 1 = 1(K = Independent variables = dry cotton and wet cotton)
Significance level, 5% = 0.05 Table value/Critical value = 3.8412.8 > 3.84 meaning that the difference between the observed individuals and what the expected individuals in each chamber is statistically significant. Not probably to occur by random chances.
There is enough evidence to reject the null hypothesis.
13. Give one explanation for why gene switches are able to be flipped, instead of remaining in a fixed
position?
I
Answer:
(TAKEN OFF OF GOOGLE)
Explanation:
A UNC-led team of scientists has now shown that transcription factors don't act like an 'on-off' switch, but instead can exhibit much more complex binding behavior.
How would you fix the following run-on sentence:
Going to school was a nice escape I felt like I was always arguing with my brother at home.
Going to school was a nice escape. I felt like I was always arguing with my brother, at home.
Answer:
Going to school was a nice escape, I felt like I was always arguing with my brother at home.
Explanation:
A comma (or a period) would fix the run-on sentence because "going to school was a nice escape" is a independent clause, as "i felt like I was always arguing with my brother at home" is as well. But being that they are connected a comma would be best
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What happens at the Pacific Ring of Fire which circles the Pacific Ocean from the
west coast of North and South America to the east coast of Asia?
0It provides heat for the regions surronding the ring.
O It produces volcanoes as a result of tectonic plate movement
0It produceshurricanes.
O sedimentary rocks are produced as a result of the heat produced.
Answer: O It produces volcanoes as a result of tectonic plate movement
Explanation: The way the plate tectonics move create the volcanoes due to the direction they're moving which allows the magma/lava to flow making it a "volcano"
The pacific ring of fire which circles the Pacific Ocean from the west coast of North and South America to the east coast of Asia is, it produces volcanoes as a result of tectonic plate movement. The correct option is b.
What is the Pacific Ring of Fire?The Ring of Fire is a ring of volcanoes and seismic activity, or earthquakes, that circles the Pacific Ocean. The Ring of Fire is home to over 90% of all earthquakes and 75% of all active volcanoes on the planet.
The Ring of Fire is not a perfectly circular ring. The belt is associated with volcanoes throughout its length, which is why it is known as the "Ring of Fire." On the oceanic side, the belt is framed by a series of deep ocean troughs, and continental landmasses lie behind.
Therefore, the correct option is b, It produces volcanoes as a result of tectonic plate movement.
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Which cell or cells are eukaryotic?
A. Cell A
B. Both cell A and B
C. Cell B
D. Neither cell A or B
Answer:
The correct answer is B. both cell A and B
Explanation:
hope this helps u!!
Explanation:
I think is answer B
booth of them are eukaryotic cells.
Eukaryote, any cell or organism that possesses a clearly defined nucleus. The eukaryotic cell has a nuclear membrane that surrounds the nucleus, in which the well-defined chromosomes (bodies containing the hereditary material) are located.
Answer with the key words from the word bank in each description :P
5. Normal active, growing stage of the cell.
6. Chromosomes make copies of themselves (replicate).
7. Humans have 23 pair of these.
8. Cell division in which the chromosomes in the nucleus of the parent cell duplicate and divide into two identical daughter cells.
9. Centrioles move to the poles.
10. One side of a replicated chromosome.
11. Mitosis is defined as the division of the cell
and this is the word bank
Metaphase
Prophase
Interphase
Telophase
Anaphase
Chromosomes
Chromatids
Mitosis
Nucleus
Answer:
5 - Interphase
6 - Mitosis
7 - Chromosomes
8 - Mitosis
9 - Anaphase
10 - Chromatids
11 - Mitosis
Which does not occur during translation? tRNA pairs with complementary mRNA. Met-tRNA binds to the start codon. DNA is transcribed into a complementary strand of mRNA. A chain of amino acids, linked by peptide bonds, is formed.
Answer:
DNA is transcribed into a complementary strand of mRNA.
Explanation:
Translation is the second process of gene expression, which involves the synthesis of proteins from mRNA transcript. Before this translation process occurs, a gene must have undergone a process called TRANSCRIPTION to yield a single stranded mRNA.
The translation, which occurs in the ribosome, then occurs where Met-tRNA initially binds to the start codon, tRNA (transfer RNA) pairs with complementary mRNA, and a chain of amino acids, linked by peptide bonds, is formed. However, the transcription of DNA into a complementary strand of mRNA does not occur during TRANSLATION.
Answer:
It is C!!Explanation:
DNA is transcribed into a complementary strand of mRNA.
write two important pieces of info on the role of fats
Answer:
* Fats help to keep our body warm.
* They store energy and produces it when the body is in need.
* They act as messengers; this helps proteins to do their job.
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fat keep body warm...............
fat store energy....................................
Please help as soon as possible!!!!!!!
Answer:
The answer is definitely B
Explanation:
Since the copper is the most expensive and uses the least amount of energy It is the most efficient pan
20. Which macromolecule is structure A composed of and what is its function?
A.) Carbohydrates - makes quick energy
B.) Lipid - makos fats
C.) Nucleic acid - makes genetic material
D.) Protein- facilitates diffusion
The structure A is a PROTEIN, it is composed of amino acids and its function is to facilitate diffusion (option D).
Channels and/or carriers are specific membrane proteins that enable the movement of molecules across biological membranes.In facilitated diffusion, specific carriers enable the passage of molecules across biological membranes in favor of a concentration gradient, ie., from a region of high concentration to a region of low concentration.For example, aquaporins are membrane proteins (carriers) used by cells to allow the passage of water molecules across biological membranes.In conclusion, structure A is a PROTEIN, it is composed of amino acids and its function is to facilitate diffusion (option D).
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This macromolecule builds muscle and other necessary components of living things.
O Lipids
O Carbohydrates
O Proteins
0 Nucleic Acids
Discuss alcoholic fermentation including the function of the production of ethanol, as well as an example of an organism that carries out this process.
Answer:
Yeasts by fermenting carbohydrates as a product obtain alcohols, of which they are ethanol.
Some yeasts are edible and are used in the dough to lift them, others are not considered edible.
On the other hand, there are two types of fermentations, acidic and alcoholic, yeasts that are fungi ferment carbohydrates to give ethanol as a product.
Explanation:
Alcoholic fermentation occurs because the molecular structure of the carbohydrate adds an alcohol group, and this is what characterizes the alcohol within this group. Ethanol is an alcohol that has two carbons and an alcohol group accompanied by hydrogens that complement the four bonds of each carbon.
The term et of ethanol refers to the presence of two carbons in organic chemistry.
Pls answer this question. What process is occurring in Figure 4 above?
Answer:
I believe answer would be d. translation
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Answer:
what's the question?
Explanation:
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Answer:
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Explanation:
Which system provides humans with the ability to perceive,understand and react to environmental events?
Answer:
The human visual system.
Explanation:
Please help What is the “traditional” understanding of the scientific method ? Please us your own word and Thank you
Answer: The study of scientific method is the attempt to discern the activities by which that success is achieved. Among the activities often identified as characteristic of science are systematic observation and experimentation, inductive and deductive reasoning, and the formation and testing of hypotheses and theories.
Explanation:
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Explain how insulation increases the efficiency of heating and cooling systems.
In 1952, who discovered the spiraling shape of DNA?
a.Rosalind Franklin
b.James Watson
c.Francis Crick
d.Gregor Mendel
Answer:
The correct answer is Rosalind Franklin