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Related Questions
Scientists discover a species that doesn’t have any organelles. What organism could it be? (1 point)
Responses
Slime Mold
Slime Mold
Grass
Grass
Bacteria
Bacteria
Yeast
Yeast
Answers
Scientists discover a species that doesn’t have any organelles. The organism could it be Bacteria. Thus, option C is correct.
What are bacteria?Bacteria are known as unicellular organisms and they perform a function of digesting nutrients and other important nutrients in order to run the living cycle as well as the ecosystem. Bacteria are considered as good decomposers and they generally decomposes the waste materials.
The decomposers are considered as the living thing that feeds on and breaks down plant and animal matter into simpler parts or substances. decomposer. The thin layer that has been formed the outer covering of the cell has been known as the cell membrane. It has been composed of the lipid bilayer which has a embedded proteins.
Therefore, Scientists discover a species that doesn’t have any organelles. The organism could it be Bacteria. Thus, option C is correct.
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Write an essay about why or why not: Should scientis clone the DNS of dinosaurs and bring them back to populate the earth?
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DNA degrades over time. Dinosaurs went extinct about 66 million years ago, and so much time has passed that it is highly unlikely that any dinosaur DNA remains today. Dinosaur bones can survive millions of years, but dinosaur DNA almost certainly cannot.
The oldest DNA fragments found are only 800,000 years old, so cloning dinosaurs is probably impossible. True cloning also requires intact living cells and has been successful only in host animals of the same species. This also excludes mammoth clones. If you dig up a fossil today the dinosaur DNA in it would have fallen apart long ago.
So, as far as scientists know even with the best technology available today, it's impossible to make a dinosaur out of DNA. Scientists are now working to reverse extinction by bringing animals that disappeared from the earth long ago back into our lives. By manipulating the genetic code of a closely related species' DNA we can slowly build and manipulate a model of the species' DNA in reverse.
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Explain how electrolytes in the body are essential to proper body function. What is a common electrolyte used by athletes and why is it used?.
Answers
The major electrolytes used by athletes are magnesium, sodium, calcium and potassium and they use it to sustain the body water level.
What are electrolytes and what electrolytes are used by athletes and why they use it?Electrolytes are the ions or the substances that are needed by the body to maintain the water level and blood level.There are various electrolytes found in blood like K+ a major component of the blood.So electrolytes are usually taken by athletes and the major of the electrolytes taken by them are magnesium, calcium and potassium.Athletes use electrolytes to make sure that the body water level does not drop below comfort level.So to sustain the water level they usually take electrolytes and also to maintain various hormone levels.To increase the cardiovascular activity also electrolytes are helpful for the athletes.To know more about electrolytes visit:
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question is in photo below!
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The answer of the query is the 3 laws of inheritance proposed through Mendel encompass: regulation of Dominance, regulation of Segregation, law of independent collection.
Whilst an organism makes gametes, every gamete gets simply one gene reproduction, which is chosen randomly. that is referred to as the regulation of segregation. A Punnett rectangular can be used to predict genotypes and phenotypes of offspring from genetic crosses.
Mendel's law of unbiased assortment states that the alleles of extraordinary genes get taken care of into gametes independently of each other. In different words, the allele a gamete gets for one gene does not have an effect on the allele obtained for every other gene.
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What’s the correct answer answer asap for brainlist
Answers
Answer:
C is the answer
Explanation:
Scientific laws or laws of science are statements, based on repeated experiments or observations, that describe or predict a range of natural phenomena.
Answer:
C. A statement based on repeated experiments and observation that can predict what will happen.
When in a complex with ________, the cap protein binds to the cap site and ________ the expression of the lac operon.
Answers
There is a binding site for a protein called the protein degradation activator protein proximal of the transcription (CAP).
The binding of something like the CAP protein bending the DNA as well as facilitates RNA polymerase attachment, which dramatically improves the transcription of both the lac operon.With the help of coupled CAP, RNA polymerase may connect to the lac operon promoter. Whenever lactose has been available, the operator would activate the lac repressor This makes it possible for RNA polymerase to continue transcription of something like the operon on the DNA. Catabolite activator protein (CAP) should indeed connect to cAMP for RNA polymerase to start transcription of either the lac operon.The DNA located 61.5 kb forward of the transcription start point is where the protein degradation gene activator-cyclic AMP combination (CAP) interacts and positively controls the lactose (lac) operon promoter.
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Give examples of animals in Platyhelminthes and Nematodes. Show the true diversity of the organisms you are studying.
Answers
Examples of organisms of Platyhelminthes phylum are Planaria, tapeworm, liver fluke. Nematodes are reported as parasites for example Annelida, Mollusca, and Arthropoda.
Major difference that lies between Platyhelminthes and Nematoda is that Platyhelminthes is a structure of flatworms with a thin and dorso-ventrally flattened body on the other hand Nematoda consists of a cylindrical body, which is tapered from the fine ends to each end.
Hence, Bilateral symmetry is an important anatomical feature of animals belonging to Phylum Platyhelminthes. While nematodes are worms with cylindrical but not segmented bodies.
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What is typical of cell reproduction when normal cells are reproduced in a petri dish from a tissue culture? check all that apply.
Answers
Only when there is space in the petri dish may cells reproduce (A, B, D). After one layer of cellular reproduction, cells stop.
What happens during mitosis in normal cells grown in tissue culture?Cell division, or mitosis (meiosis in germ cells), is a process that involves a number of dynamic processes and the coordinated interactions of numerous cellular parts. The DNA that has been copied condenses into chromosomes during mitosis and is then joined to what is known as the "mitotic spindle," a complicated structure.
How do your cells multiply when you suffer a paper cut?The explanation is that new cells are created during mitosis whenever we suffer an injury. A parent cell divides into two daughter cells with an equal number of chromosomes during the mitotic phase.
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The you looking for
What is typical of cell reproduction when normal cells are reproduced in a Petri dish from a tissue culture? check all that apply
1.cells reproduce only when there is room in the Petri dish
2.cells reproduce one layer thick and then stop reproducing
3.cells undergo unlimited reproduction by mitosis
4.when a cell dies or is damaged, a new one is created to fill the empty spot
In this illustration, the small blue spheres represent water molecules. Sections A and B are divided by a membrane, with section A containing fewer water molecules than section B. In which direction will water molecules move across the membrane? Sections A and B are divided by a membrane, with section A containing fewer water molecules than section B Question 9 options: Water will move from A to B There will be no net movement of water. Water will move from B to A.
Answers
Through an osmotic process, water can freely go from a more diluted solution to a less diluted one. It follows its concentration gradient and does not need energy. Option 3 (or C) Water will move from B to A.
What is osmosis?
Osmosis is a simple passive transport process through which water molecules move from one side to the other of the membrane.
Water follows its concentration gradient, so it does not need energy to be transported. Water moves from the most diluted side to the more concentrated one.
When dilutions have different concentrations, there is a difference in the number of water molecules moving from one side to the other.
Solutions reach a dinamic equilibrium when concentrations at each side of the membrane are the same.
In the exposed example, sections A and B are separated by a semi-permeable membrane, and A contains fewer water molecules than B.
Water will move from A to B ⇒ NOThere will be no net movement of water ⇒ NOWater will move from B to A ⇒ YES
Water moves from B to A because in section B there is a greater concentration of water than in A. So water follows its concentration gradient and moves forward to A.
Option 3 is correct.
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A student wonders if the bubbles on this water plant are oxygen gas (02). However, identifying a gas as 02 with direct evidence requires many kinds of equipment.
Which observation would provide indirect evidence that supports a hypothesis that the bubbles are 02?
• A. A description of the shape of each leaf after a plant is kept under dim light
• B. A count of the bubbles produced over time by one plant under bright light
• c. A decrease in the approximate size of each leaf on plants kept in darkness
• D. An increase in bubbles on the plant when it is moved under a brighter light
SUBMIT
Answers
An increase in bubbles on the plant when it is moved under a brighter light would give indirect evidence to support the hypothesis that the bubbles are [tex]O_2[/tex].
PhotosynthesisDuring photosynthesis, green plants use their chlorophyll to absorb sunlight. This solar energy is then used to fix carbon dioxide and water into glucose while oxygen is liberated as a by-product of the reaction.
The process happens through a series of steps. Some happen in the presence of light while others happen without light. Those steps that require sunlight are said to be light-dependent while those that do not are said to be light-independent.
The overall equation of the reaction is written as follows:
[tex]6CO_2 + 6H_2O -- > C_6H_1_2O_6 + 6O_2[/tex]
Since the reaction depends on light, the brighter the light, the faster the rate of the reaction, all other factors being equal. The faster the rate of the reaction, the more bubbles of oxygen will be formed.
In other words, an increase in bubbles on the plant when it is moved under a brighter light would give indirect evidence to support the hypothesis that the bubbles on the water plant are oxygen gas.
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Answer:
d
Explanation:
Which has a higher melting tempera-
ture, magnesium-rich pyroxene or iron-rich
pyroxene? Explain your reasoning.
Answers
Answer:
Iron-rich Pyroxene
Explanation:
It melts at a higher temperature and the higher the temp the more ubstable they get and then they melt.
Why was Rosa parks jailed
Answers
Answer:
because she refused to sit in the back of the bus in the black section
Answer: For not giving up her seat and moving to the back of the bus.
Explanation:
She refused on principle to surrender her seat because of her race, which was required by the law in Montgomery at the time. Parks was briefly jailed and paid a fine. But she was also a long-time member of the NAACP and highly respected in her community.
Earth's second atmosphere (atmosphere II) was produced primarily by which process?
Responses
plant life
condensation
outgassing
photosynthesis
Answers
Answer: Outgassing
Explanation:I took the test and got it right.
.
Complete the equation for cellular respiration:
________ + sugar → ________ + water
oxygen, carbon dioxide
carbon dioxide, oxygen
ATP, light energy
chlorophyll, mitochondria
Answers
Answer:
oxygen + sugar → carbon dioxide + water
What two roles does atp play during the contraction stage? choose all that apply.
Answers
Actin and myosin can separate from one another when myosin releases actin in response to ATP binding.
What two functions do ATP play in the contraction of muscles?Fatty acids and glucose can both be used by muscle cells for aerobic respiration. In muscle cells, ATP is required for the active transport of calcium (Ca++) and the movement of motor proteins.
What part does ATP play in the contraction of muscles?Only ATP serves as the source of energy for muscular contraction. The muscle's ATP supply will be exhausted during near maximally intensive exercise in less than one second; as a result, ATP must constantly be produced in order to sustain normal contractile function.
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The trait for blue eyes in humans is caused by a recessive allele. If this gene is named E, what is the genotype of a blue-eyed person?(1 point)
Answers
Answer:
ee
Explanation
The first roadblock to overcome in the synthesis of glucose from pyruvate is which of the following reactions?
a. Fructose 6-P to Fructose 1,6-bis-P
b. Pyruvate to Oxaloacetate
c. Pyruvate to Phosphoenolpyruvate
d. Phosphoenolpyruvate to Pyruvate
Answers
The first roadblock to overcome in the synthesis of glucose from pyruvate is c. Pyruvate to Phosphoenolpyruvate.
It's clearly a depend of creating connections or placing things collectively. We synthesize records evidently to assist others see the connections among things. for instance, whilst you file to a pal the things that numerous other buddies have stated about a track or movie, you're conducting synthesis.
In popular, the time period synthesis relates to the creation of something. it is the process of combining two or extra additives to produce an entity. In biochemistry, it refers back to the production of an natural compound in a living aspect, particularly as aided by means of enzymes.
Synthesis way the combination of a number of simple sentences into one new sentence – simple, compound or complicated. the subsequent are the chief ways of combining two or more simple sentences into one huge easy sentence. by using a participle. He sprang as much as his feet. He ran away.
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Outline the Calvin-Benson cycle in terms of carbon dioxide during
a) fixation
b) reduction
c) regeneration
forbed
Answers
The Calvin-Benson cycle in terms of carbon dioxide during is fixation.
What is the Calvin-Benson cycle?The Calvin cycle is a step in the photosynthetic process that converts atmospheric CO2 into sugar phosphates for use in a broader metabolism that supports the growth and development of plants.In the stroma of plant cell chloroplasts, the Calvin cycle occurs. There are eleven enzymes involved in this cycle, which has three stages:(i) carboxylation carried out by carbon dioxide fixing enzyme ribulose-1,5-bisphosphate carboxylase oxygenase (Rubisco),(ii) reduction of the C3 acids formed by the carboxylation reaction (the stage of sugar formation), and (iii) regeneration of ribulose-1:5-bisphosphate (RuBP), the CO2-acceptor molecule at Rubisco.The Calvin cycle is a step in the photosynthetic process that converts atmospheric CO2 into sugar phosphates for use in a broader metabolism that supports the growth and development of plants.In the stroma of plant cell chloroplasts, the Calvin cycle occurs.To learn more about Calvin-Benson cycle, refer to
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I don’t know how to do this
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The normal human cell contains a single pair of chromosome Option B.
This is because in the human evolutionary lineage two monkey chromosomes fused at the telomere to create the human chromosome 2. As a result, he has one less pair of human chromosomes. A gamete is a haploid cell containing 23 chromosomes, each chromosome being one of a pair of chromosomes present in a diploid cell.
The number of chromosomes in one set is denoted as n, also known as the haploid number. An abnormal chromosome 22 containing part of chromosome 9 and a fusion gene is commonly known as the Philadelphia chromosome. Translocations are acquired throughout life and are present only in abnormal blood cells. This type of genetic change, called a somatic mutation, is not inherited.
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2. Which of the following are organs or organ systems of a rotifer? (Choose all that apply) a digestive tract a respiratory system. a rudimentary nervous system sensory organs
Answers
A rudimentary nervous system, a digestive tract, and sensory organs.
Explanation:
I took the test and it was correct. I hope this helps! :)
Rudimentary nervous system, a digestive tract, and sensory organs.
Explanation:
I posted on the wrong account. I hope this helps out a bit! :)
Which component of a homeostatic system perceives changes in some parameter of the environment?.
Answers
A sensor or receptor in a homeostatic system detects alterations in an environmental parameter.
The act of maintaining a steady internal environment within an organism is described by what term?The upkeep of a constant interior environment is called homeostasis. An organism must maintain certain physical and chemical conditions for its component cells, tissues, organs, and organ systems to function correctly. This condition is known as homeostasis.
What part of the homeostatic control system perceives the environment?At least three interdependent parts make up homeostatic control mechanisms: a receptor, an integrating center, and an effector. Sensing environmental stimuli, the receptor transmits the data to the integrating center.
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1. Do you think earthquakes are causing changes in mountain elevation, or just correlated with the changes?
Answers
Answer:
Scientists have shown that earthquakes, not an ancient wetter climate as previously thought, are eroding the mountains in Peru.
Explanation:
Question 4 options:
A Red Blood Cell is place in a beaker in solution. The solution has a higher concentration of solutes than the cell. This is an example of a(n) [Hypotonic/Isotonic/ Hypertonic]
Solution.
Answers
If a Red Blood Cell is placed in a beaker in solution, the solution would have a higher concentration of solutes than the cell and this is an example of a hypertonic solution.
What is osmosis?Osmosis simply refers to a process that typically involves the movement of a solvent molecule such as nail polish or water through a selectively or permeable membrane, especially from a region of higher concentration to a region of lower concentration.
What is a hypertonic solution?In Science, a hypertonic solution can bed defined as a type of solution that contains a higher concentration of solutes such as water than the cell.
On the other hand, a hypotonic solution can bed defined as a type of solution that contains a lower concentration of solutes such as water than the cell.
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Possible phenotypes
Fast/Red____: Fast/Grey ____ : Slow/Red ____ : Slow/Grey
Answers
Answer: Fast/Red : 8, Fast/Grey : 0, Slow/Red : 8, Slow/Grey : 0
Explanation:
Complete a punnet square.
After the oil spill, marine microbes consumed the oil under the surface but also removed ________ from the water, killing both plants and animals and creating dead zones.
Answers
After the oil spill, marine microbes consumed the oil under the surface but also removed oxygen from the water, killing both plants and animals and creating dead zones.
What 3 impacts do oil spills have?Oil spills can endanger marine life, disrupt a day at the beach, and make fish unfit for consumption. Sound science is required to remove the oil, assess the effects of contamination, and aid in the ocean's recovery.
What harm does oil cause to the environment?Oil spills damage the soil and water and can result in disastrous fires and explosions. To limit the possibility of accidents and spills and to clean up spills when they do happen, the federal government and business are creating standards, laws, and procedures.
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The protective membranes that surround, stabilize and partition parts of the brain are called the cranial.
Answers
True, The term "cranial" refers to the protective membranes that enclose, support, and divide various portions of the brain.
What exactly are cranial meninges?The meninges, a collection of connective tissue membranes that surround the CNS's outer shell, support, shield, and separate the brain.
A powerful protective coating covering the entire brain, the dura mater is a dense layer of fibrous tissue. It is fastened to the spinal cavity and cranium's inner surface. A thin membrane of fibrous tissue called the arachnoid mater forms a loose sac surrounding the brain. The term "subarachnoid space" refers to the area below the arachnoid mater where arachnoid trabeculae, a thin, filamentous mesh that resembles a spider web, give this layer its name.
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Experimental Question: How does the amount of sugar affect the amount of cellular respiration done by yeast?
Independent/Manipulated Variable (the variable we are changing):I
Dependent/Responding Variable (the variable we are measuring):
Controlled Variables (the variables we are keeping the same):
Experimental Control Group (what we know is going to happen that we use for comparison):
Answers
Independent variable is the variable that is changed or manipulated in a series of experiments. According to this question, the amount of sugar is the independent variable because it is changed.
Dependent variable is the outcome measured to see the effectiveness of the treatment. According to this question, the amount of respiration undergone by the yeast cell is measured.
Control variable is the variable that is kept constant throughout the experiment. In this experiment, the type of yeast is the constant.
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What’s the correct answer answer asap for brainlist
Answers
Answer: the amount of shared DNA between species
Explanation:
What unusually biodiverse island is home to the dragon blood tree, which appears to bleed when cut?.
Answers
What unusually biodiverse island is home to the dragon blood tree,Socotra appears to bleed when cut.
A mysterious tree species known as dragon's blood tree has flourished for millennia on Socotra, a secluded island 200 miles off the coast of Yemen that is considered as the jewel of Arabia. The tree is indigenous to only that region and has a distinctive, umbrella-like appearance. The tree appears to shed bloody tears, but in reality, it only emits what is known as dragon blood—a red sap or resin.Socotra appears to bleed when cut Red resin will ooze out of any cuts made in this tree and appear to be bleeding. With an "upturned, densely packed crown having the shape of an uprightly held umbrella," the dragon blood tree has a singular and peculiar appearance. The dark red resin on this evergreen species, known as "dragon's blood," is the reason for its name.
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According to the article, the closest thing we have to the fountain of youth is what?
O Cardio
O Gymnastics
O Resistance Training
O Crossfit
Answers
Answer:
now adays youth have resistance in training
