2. This cell structure acts as the "brain" or command center for the cell.
Cell membrane
Ribosome
O Mitochondria
O Nucleus
Answers
Related Questions
what process does the urchin perform to obtain its energy
Answers
Answer:
The Purple Sea Urchin obtains oxygen through diffusion only the diffusion of oxygen into the organism. Also, oxygen diffuses from the canals into the rest of the body and carbon dioxide diffuses back into the canals to be released.
Explanation:
:)
The Purple Sea Urchin obtains oxygen through diffusion only the diffusion of oxygen into the organism. Also, oxygen diffuses from the canals into the rest of the body and carbon dioxide diffuses back into the canals to be released.
What is the best example of a hypothesis leading to new experimental methods?The best example of a hypothesis leading to new experimental methods as the Thomas Hunt Morgan continued the genetic research of Gregor Mendel, but Morgan used fruit flies.
The best example of a hypothesis leading to new experimental methods is that the Thomas Hunt Morgan continued the genetic research of Gregor Mendel, but Morgan used fruit flies.
Through Thomas Hunt Morgan's fruit fly experiments, he was able to discover and notice the inheritance of specific chromosomes. This experiment gave Mendel a great opportunity to publicize his idea of studying humans.
Therefore, The Purple Sea Urchin obtains oxygen through diffusion only the diffusion of oxygen into the organism. Also, oxygen diffuses from the canals into the rest of the body and carbon dioxide diffuses back into the canals to be released.
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explain the 8 phases of the moon
Answers
Answer:
The moon goes through a cycle of eight distinct phases as it orbits around the Earth. These phases result from the changing positions of the Earth, Moon, and Sun relative to each other. Here are the eight phases of the moon:
New Moon: During the new moon phase, the Moon is positioned between the Earth and the Sun, with the side of the Moon facing us not illuminated. From our perspective on Earth, the Moon appears completely dark.
Waxing Crescent: Following the new moon, a small crescent of the Moon becomes visible. This phase is known as the waxing crescent. The illuminated portion of the Moon gradually increases, but it is still a small fraction of the Moon's total surface area.
First Quarter: As the Moon continues its orbit, the first quarter phase is reached. The Moon appears half-illuminated, with the right half visible from the northern hemisphere and the left half visible from the southern hemisphere.
Waxing Gibbous: After the first quarter, the waxing gibbous phase occurs. During this phase, more than half of the Moon is illuminated, but it is not yet a full moon. The illuminated portion continues to grow larger.
Full Moon: The full moon is reached when the Earth is positioned between the Moon and the Sun. The entire side of the Moon facing Earth is fully illuminated, making it appear as a complete circle.
Waning Gibbous: Following the full moon, the Moon enters the waning gibbous phase. The illuminated portion gradually decreases, but more than half of the Moon is still visible.
Third Quarter: The third quarter phase occurs when the Moon has completed three-quarters of its orbit around the Earth. During this phase, the left half of the Moon is visible from the northern hemisphere, while the right half is visible from the southern hemisphere.
Waning Crescent: The final phase of the moon is the waning crescent. Only a small crescent of the Moon is illuminated, gradually decreasing until it reaches the new moon phase again.
It's important to note that the length of each phase varies, with an average duration of approximately 7.4 days. The specific appearance and timing of each phase can be influenced by factors such as the Moon's position in its orbit and the angle at which sunlight reaches it.
Explanation:
1. New Moon: The moon is not visible during this phase as it is positioned between the Earth and the Sun, with its dark side facing us.
2. Waxing Crescent: A small portion of the moon becomes visible as a crescent shape. It appears as a thin sliver, and the illuminated part gradually increases.
3. First Quarter: Half of the moon is illuminated, appearing as a half-circle. It is called the first quarter because it marks the completion of the first quarter of the lunar cycle.
4. Waxing Gibbous: More than half of the moon is visible, but it is not fully illuminated. The illuminated part continues to grow, and the moon appears larger.
5. Full Moon: The entire face of the moon is visible, appearing as a complete circle. It occurs when the Earth is positioned between the moon and the Sun, so the moon is fully illuminated.
6. Waning Gibbous: The illuminated portion of the moon starts to decrease, and it appears as a shrinking circle. It is called "waning" because the illuminated part is getting smaller.
7. Third Quarter: Similar to the first quarter, half of the moon is visible, but it appears in the opposite half-circle shape. It marks the completion of the third quarter of the lunar cycle.
8. Waning Crescent: Only a small portion of the moon is visible as a diminishing crescent shape. The illuminated part continues to shrink until it becomes a New Moon again, starting the cycle anew.
These phases occur due to the changing positions of the moon, Earth, and the Sun, which affect the amount of sunlight reflected on the moon's surface visible from Earth.
Describe a scenario that explains the evolution of the saddle-shaped shell using Lamarckian evolution.
Answers
Lamarckian evolution suggests that organisms can acquire new traits or characteristics during their lifetime and pass them on to their offspring, for example, the evolution of saddle-shaped shell.
In an aquatic population of mollusks, the majority of the population had flat-shaped shells whereas a small subset had saddle-shaped shells.
These mollusks with saddle-shaped shells had an advantage over others. The shape of their shells allows them to create a better grip on the rocky surfaces, minimizing the risk of being dislodged by the powerful currents.
As a result, they are more likely to survive and reproduce, passing on their genetic traits, including the saddle-shaped shell, to the next generation.
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A fetus has been developing for three months. What will happen next?
A. Vocal cords develop
B. External sex organs form
C. Blood starts pumping
D. Hands and feet are formed
Answers
how do scientists know that mountains were once at the bottom of the ocean
Answers
Answer:
Its more then likely that they do and they were the ones that found that out. but im not 100% sure
penicillin is an antibiotic produced by penicillium fungi. based on what we learned about plant biomolecules, what compound class would penicillin best fit into? secondary metabolite hormone pigment enzyme macromolecule
Answers
Penicillin, an antibiotic produced by Penicillium fungi, would best fit into the compound class of secondary metabolites.
Secondary metabolites are organic compounds that are not directly involved in the growth, development, or reproduction of an organism. Instead, they often play roles in defense mechanisms, signaling, or interactions with other organisms. Penicillin is a secondary metabolite because it is produced by Penicillium fungi as a defense mechanism against bacteria. It inhibits the growth of certain bacteria by interfering with their cell wall synthesis.
Penicillin does not fall into the categories of hormones, pigments, enzymes, or macromolecules. Hormones are chemical messengers that regulate various physiological processes in organisms, pigments are compounds responsible for coloration, enzymes are proteins that catalyze chemical reactions, and macromolecules are large molecules such as nucleic acids, proteins, and carbohydrates.
Therefore, based on its role as an antibiotic produced by Penicillium fungi, penicillin is classified as a secondary metabolite.
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Match the following variations in the respiration to their definitions. Accelerated respiration Dyspnea Hyperventilation Kussmaul Respiration Temporary cessation of breathing Rapid breathing induced by acidosis Accelerated respiration Labored, gasping breathing Increased breathing in response to exercise Reduced pulmonary ventilation Apnea Respiratory Arrest Orthopnea Labored, gasping breathing Permanent cessation of breathing Permanent cessation of breathing Rapid breathing induced by acidosis Hyperpnea Hypoventilation Tachypnea Increased breathing in response to exercise Dyspnea when lying down Reduced pulmonary ventilation Increased pulmonary ventilation
Answers
The given table can be completed as follows:Variations in respiration Definitions Accelerated respiration Increased breathing in response to exercise Dyspnea Hypoventilation Dyspnea when lying down Hyperventilation Rapid breathing induced by acidosis Kussmaul .
Respiration Rapid breathing induced by acidosis Apnea Permanent cessation of breathing Orthopnea Dyspnea when lying down Tachypnea Rapid breathing induced by acidosis Hyperpnea Increased breathing.
response to exercise Hypoventilation Reduced pulmonary ventilation Dyspnea Labored, gasping breathing Reduced Reduced pulmonary ventilation.
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art-labeling activity: cranial meninges
Answers
The cranial meninges (plural: meninx) are three layers that surround the brain (from outermost to innermost): Pia mater, arachnoid mater, and dura mater. The labeled parts are attached.
Why is the cranial meninges important?The cranial meninges (plural: meninx) are three layers that surround the brain (from outermost to innermost): Pia mater, arachnoid mater, and dura mater
The basic role of meninges and CSF is to preserve the central nervous system (CNS). This is mostly due to the meninges' capacity to offer a tight anchoring of the CNS to the surrounding bones, preventing side-to-side movement and providing stability.
In severe circumstances, this might result in brain damage, stroke, or even death. Meningitis refers to inflammation of the meninges, which are the membranes that protect the brain and spinal cord; encephalitis refers to inflammation of the brain itself. Inflammation of the spinal cord is referred to as myelitis.
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3. Cardiac muscle cells make up which type of muscles?
(5 Points)
O A. Voluntary
B. Smooth Muscle Cells
C. Skeletal Muscle Cells
O D. Involuntary
Answers
Explanation:
voluntary muscles are ones that work without you having to think about it..example heart, lungs. part of the APT system...Autonomic ...
What does accumulate mean?
A. to increase
B. to chase
C. to destroy
Answers
Answer:
increase
Explanation:
.
Answer:
A. To increase
Explanation:
Accumulate technically means to collect or gather in one place. The option increase is closest to this definition.
Hope it helps!
What best explains the relationship between photosynthesis
Оа
The higher the rate of formation of products in respiration, the lower the rate of photosynthesis.
Photosynthesis depends on the carbon dioxide released during cellular respiration.
Ob
О с
C
Cellular respiration depends on the water released during photosynthesis.
C
They have the same set of product molecules,
Answers
Answer:
I think it's the last one! "They have the same set of product molecules"
Explanation:
Photosynthesis removes carbon dioxide from the atmosphere, and cellular respiration puts it back. Photosynthesis releases oxygen into the atmosphere, and cellular respiration uses that oxygen to release energy from food.
The diagram shows four possible
genetic arrangements of a cell that
contains two chromosomes during
metaphase.
Part A:
What is the diagram MOST LIKELY
demonstrating?
A. Mutation
B. Crossing over
C. Independent assortment
Answers
Independent assortment shows four possible genetic arrangements of a cell that contains two chromosomes during metaphase.
What is independent assortment?According to the Principle of Independent Assortment, as reproductive cells mature, various genes separately segregate from one another. Gregor Mendel made the initial discovery of an independent assortment of genes and the qualities they influence in 1865 while doing genetic research on pea plants.
The image missing in the independent assortment is attached here:
By passing one copy of each diploid pair of homologous chromosomes into each gamete independently of the other pairs, according to the laws of chance, random combinations of chromosomes and genes are formed during meiosis on various pairs of homologous chromosomes.
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explain how you know which attachment of a muscle is the origin and which attachment is the insertion.
Answers
Skeletal muscle attaches to bone (and possibly other muscles and tissues) at two or more points. A bond is called an origin if its location is a bone that remains immovable to the action. If the point is on a bone that moves during the action, it's called an insertion.
The origin is the attachment site that does not move during contraction, and the insertion is the attachment site that moves with muscle contraction. The insertion is usually distal or farther away and the origin is proximal or near the body to the insertion.
The origin is the less movable part of the muscle/tendon that is linked to the bone. The inset is the muscle's more flexible end, which is normally linked to the bone through tendons. The proximal end is what connects to less movable bone. The distal end is what connects to the more movable bone.
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What is the definition is Heterogeneous?
Answers
Answer:
Heterogeneous consists of the structure with various components or elements appearing to be irregular or variegated.
Explanation:
An example of this definition is a dermoid cyst in which has the components of a heterogeneous attenuation on CT.
What is photosynthesis
Answers
CARRYONLEARNING(◕ᴗ◕✿)
Which best describes convection? It relies on the collision of particles within or between substances. It occurs in solids, liquids, or gases that are heated. It results when portions of a liquid cool and rise. It is driven by temperature differences within a fluid.
Answers
The convection is driven by temperature differences within a fluid. Hence, the last option is correct.
What is convection?Convection refer to the heat transfer process via the bulk movement of molecules that arise within the fluids like the gases and liquids.
The initial heat transfer should be lies between the object and the fluid takes place via conduction, however, the bulk heat transfer arise because of the motion of the fluid.
hence, the last option is correct.
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Answer:
4
Explanation:
best explanation of the role of dna and rna in making proteins?
Answers
Answer:
DNA stores the information for protein synthesis, and RNA carries out the instructions encoded in DNA.
DNA stores the information for protein synthesis, and RNA carries out the instructions encoded in DNA.
What is protein synthesis?
Cells create proteins through a process known as protein synthesis. Transcription and translation take place simultaneously. The conversion of genetic information from DNA to mRNA in the nucleus is known as transcription.
Initiation, elongation, and termination are its three stages. Following processing, the mRNA transports the instructions to a ribosome in the cytoplasm.
The ribosome, which is made up of proteins and rRNA, is where translation happens. The mRNA's instructions are read during translation, and tRNA then transports the appropriate sequence of amino acids to the ribosome. rRNA then facilitates the formation of bonds between the amino acids, resulting in a polypeptide chain.
A polypeptide chain may be further processed to create the finished protein after it has been created.
Therefore, DNA stores the information for protein synthesis, and RNA carries out the instructions encoded in DNA.
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Describe the role of photosynthesis in this innovative process.
Answers
Answer: Photosynthesis is the process by which green plants and some other organisms convert light energy from the sun into chemical energy in the form of organic compounds, such as glucose. This process plays a crucial role in many innovative processes, particularly in the fields of renewable energy and sustainable agriculture
Explanation:
One example of the role of photosynthesis in an innovative process is the production of biofuels. Biofuels are fuels that are derived from organic matter, such as plant material or animal waste.
after meiosis resulting daughter cells will contain
Answers
Each daughter cell resulting from meiosis will contain half the number of chromosomes as the original parent cell.
In humans, the parent cell contains 46 chromosomes, but after meiosis, each of the resulting daughter cells will contain 23 chromosomes. These cells are called haploid cells because they contain only one set of chromosomes.
During meiosis, the parent cell goes through two rounds of division, resulting in four daughter cells. Each daughter cell is genetically unique because of the process of crossing over, which shuffles the genetic material between homologous chromosomes.
This genetic variation is essential for sexual reproduction because it creates offspring with unique traits and helps to increase genetic diversity in populations.
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HELP !!!!
Which of the following are improvements in recent society that have lead to
decreased mortality rates? (Choose all that apply.)
medical care
sanitation
better schools
food production
Answers
Answer:
I would say all except better school. While that can indirectly impact mortality rates, I feel like it doesn't play as big a role as medical care, sanitation, and food production.
What is the correct measurement?
A.36.5
B.33.3
C.32
D.37
Answers
Answer:
the answer is A
Explanation:
Answer:
A 36.5
Explanation:
The little marks go up by one and it only went up one tick past the thirty five and did not past the second tick
What three different genotypes are possible for an individual in this population
Answers
Answer:
With alleles 'A' and 'a' there are three possible genotypes AA, Aa and aa
Explanation:
Pls mark as brainliest answer
For Anatomy and Physiology
science uses data to describe the findings of an experiment. qualitative data is:
° set of knowledge explanations for certain phenomena
° set of data describing the findings of an experiment
° set of data using the numbers or measurements to represent the findings of an experiment
° experimental sample absent of the factor in question
Answers
Science uses data to describe the findings of an experiment, qualitative data is: set of data describing the findings of an experiment.
Qualitative data is data that describes, analyzes, decodes, translates, and synthesizes the results of events that occur more or less naturally.
It tries to achieve a holistic description, that is, it tries to exhaustively analyze, in great detail, the findings of an experiment.
It contains the narrative records of the findings of an experiment studied through techniques such as participant observation and unstructured interviews.
That is, the analysis of qualitative data is mainly one of synthesis and integration of the information obtained from various instruments and means of observation.
That is,a coherent descriptive analysis that aims to achieve a thorough and detailed interpretation of the research problem will predominate.
Therefore, we can conclude that qualitative data is the set of data describing the findings of an experiment.
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Material within the cell membrane that is not part of the nucleus.
Answers
Answer:
its the cytoplasm I believe
Based on this information, what is the highest magnification power that Stella's microscope can achieve?
Answers
Answer:
400 x
Explanation:
The highest magnification power of Stella's microscope is 400 x. magnification refers to the enlargement of size of an object. Due to this magnification, parts of the identified object such as cell can be seen clearly. 400 X means that the cell size is maximize up to 400 times as compared to its original size. Different microscope has different magnification power. The highest magnification power of light microscope is 1500x while the highest magnification power of electron microscope is 10,000,000x.
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which sequence of bases and amino acids could be produced by transcription and translation of the dna molecule shown?
Answers
"UACUUUACGAAAGCGCCC and Tyr The Thr Lys Ala Pro" sequence of bases and amino acids could be produced by transcription and translation of the dna molecule shown.
What is amino acids?Amino acids are chemicals that make proteins when they combine. The building blocks of life are amino acids and proteins. Amino acids are left over after proteins are digested or broken down. The human body requires amino acids to produce proteins, which aid in digestion. The sequence of bases and amino acids "UACUUUACGAAAGCGCCC and Tyr The Thr Lys Ala Pro" might be created by transcription and translation of the dna molecule depicted. Amino acids are needed for the creation of body protein as well as other nitrogen-containing molecules including creatine, peptide hormones, and certain neurotransmitters. Although allowances are given in terms of protein, amino acids are the biological need.
Here,
The sequence of bases and amino acids "UACUUUACGAAAGCGCCC and Tyr The Thr Lys Ala Pro" might be created by transcription and translation of the dna molecule depicted.
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Paragraph 5 looks at the types of fuels organisms need.Which of the Following statements is true?
1)Humans need a lot of fat molecules to avoid hunger
2)humans need proteins, fatty acids, vitamins & minerals
3)Humans need a constant supply of red meat
4)Humans need to take Vitamin B supplements
Please help & thank You
Answers
Answer:
2
Explanation:
Humans need proteins, fatty acids, vitamins, and minerals
What is the airspeed velocity of an unladen swallow (clearly not a Monty Python reference :D)?
Answers
About 27 mph for a European swallow
Explanation:
A light bulb converts electrical energy to
thermal energy and mechanical energy
nuclear and chemical energy
electromagnetic (light) energy and thermal energy
electrical and chemical energy
Answers
Answer: electromagnetic (light) energy and thermal energy
Explanation:
While looking in a microscope, you see this same specimen, which is magnified 100X. Determine its type of cells and the level of biological organization. Give evidence used to make your determination.
