what does each star become after the main sequence stage? (Earth Science)
As the star reaches the main sequence star stage, the hydrogen gas in its core is converted into helium due to the nuclear fusion. This destabilizes the core of the star as the star begins to feels the shortage of hydrogen gas . Also the star stop generating heat and it contracts. The outer shell of star which is made of hydrogen expands and becomes red. The red color indicates the star has become colder that its previous stage. At this stage the star has reached the stage of red giant phase.
Which of the following statements are true about genetic engineering?
1: Pieces of DNA from two different organisms are joined.
2: Genes from complex organisms such as animals can be inserted into bacteria or yeast.
3: There are no known risks for genetic engineering.
4: Genetic engineering is used to produce large amounts of proteins to treat certain diseases, like insulin for diabetes.
1 and 2 only
1 and 3 only
1, 2 and 4 only
1, 2, 3 and 4
For genetic engineering, pieces of DNA from different organisms are joined, and genes from complex organisms can be inserted into less complex ones.
What is genetic engineering?It is the application of technology in biology such that the genomes of organisms can be modified with desired traits.
Using genetic engineering, the DNA of an organism can be modified with the DNA of another organism. Genes of complex organisms can be inserted into simple organisms for study.
Genetic engineering has several applications, including in agriculture, medicine, etc. It has been used to produce drugs to treat different diseases in humans.
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A central nervous system depressant that produces a false feeling of well-being and efficiency and results in slower reaction time to stimulation is ________.
Alcohol is a central nervous system depressant that produces a false feeling of well-being and efficiency and results in slower reaction time to stimulation. Alcohol influences the brain activity and consciousness by hindering the flow of messages from nerve receptors to the brain. This thereby changes one’s perceptions, emotions, and senses.
What sequence on a dna molecule indicates where rna polymerase should begin transcription?
Which of these processes causes the release of water from living organisms into the atmosphere?
A) photosynthesis
B)precipitationC)transpiration
All sensory nerve impulses except smell are routed through the
Answer:
The correct answer will be the thalamus.
Explanation:
Thalamus is an olive shaped part of the brain located below the mid brain but above brain stem.
This part of the brain is also known as relay and processing part of the brain as it is the hub of the sensory neurons. The thalamus nuclei analyses the sensory impulses and then processes these sensory signals to different parts of the cerebral cortex.
Thus, the thalamus is the correct answer.
What type of severe weather would most likely decrease coral reef biodiversity by damaging coral skeletons and polyps?
Answer: Typhoons and Storm
Explanation:
Storms and typhoons continuously shape the composition, distribution and world's coral reef system.
Strong winds and currents arise due typhoon has the ability to destroy delicate coral branches, overturn even larger coral heads.
The overall result after typhoon is hard coral skeletons and polys that has no algae in it.
Hence, a climate like strong winds and typhoons may destroy the biodiversity of coral reefs.
What is the term for a feature that allows an organism to survive better in its environment? *?
The term for a feature that allows an organism to survive better in its environment is adaptation.
What is survival adaptation?Organisms regularly reply to environmental adjustments with variation, or a mutation that gives a higher manner for the organism to continue to exist withinside the new environment. This genetic extrade is exceeded right all the way down to destiny generations till it will become a regular feature of the organism.
An adaptation may cause the variation is any heritable trait that enables an organism, along with a plant or animal, continue to exist and reproduce in its environment.
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The most common bacterial sexually transmitted disease in north america, with symptoms of urethral and vaginal discharge, is:
Baby sea turtles hatch underground, automatically dig upward toward the sky, scurry toward the waves! This is a example of what behavior
The Correct answer to your question is
Innate
Examination of a tissue sample from the central nervous system reveals many darkly pigmented cells. this tissue probably came from the
The dark pigmentation in a central nervous system tissue sample likely indicates that the sample is from the substantia nigra, an area rich in neuromelanin-pigmented neurons.
Explanation:The presence of darkly pigmented cells in a tissue sample from the central nervous system most likely indicates that the tissue came from the substantia nigra. This area, found in the midbrain, is abundant with neurons that produce a pigment called neuromelanin, giving them a dark appearance. As part of the basal ganglia, the substantia nigra plays a crucial role in reward, addiction, and movement - notably, it's the region greatly affected in Parkinson's disease, where there's a significant loss of pigmented neurons.
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What are the two functions of the tnp gene in pvjt128?
the organ that transports the ovum to the uterus is the
The main components of physical fitness are cardiorespiratory fitness, flexibility, body composition, and __________. the main components of physical fitness are cardiorespiratory fitness, flexibility, body composition, and __________. mental readiness digestive regularity musculoskeletal fitness physical discipline
The main components of physical fitness are cardiorespiratory fitness, flexibility, body composition, and musculoskeletal fitness.
Cardiorespiratory fitness measures how well the circulatory and respiratory systems transport oxygen to muscles during extended physical activity. Aerobic endurance and VO2 max measure it. Flexibility refers to joint motion and muscle and tendon stretching without harm. Flexibility improves posture, muscular balance, and movement.
Musculoskeletal fitness emphasises bone and muscle strength, endurance, and power. Muscular strength, endurance, and bone density are crucial for strength, stability, and injury prevention. Overall physical fitness promotes good health, functional movement, and quality of life.
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What two structures make up a single replicated chromosome pogil?
Prophase Chromosome replication makes replicas visible (coil up). Two identical chromatids make up each replicated chromosome. The nuclear membrane begins to break down when spindle fibers develop. Metaphase The center of the cell is lined up with replicated chromosomes.
What is chromosome ?A chromosome is a lengthy DNA molecule that contains all or a portion of an organism's genetic code. The very long, thin DNA fibers in most chromosomes are covered with packing proteins; in eukaryotic cells, the histones are the most significant of these proteins.
One of a chromosome's two identical halves that has been replicated in preparation for cell division is known as a chromatid. The centromere, a constrictive area of the chromosome, is where the two "sister" chromatids are linked.
The original cell's cytoplasm is now split into two daughter cells as the cell goes through a process known as cytokinesis. Only one set of chromosomes, or half as many as the original cell's total number, are present in each haploid daughter cell.
Thus, Prophase Chromosome replication makes replicas visible (coil up).
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Most of the atp energy produced during cellular respiration is produced during ____________. select one:
a. pyruvate oxidation
b. oxidative phosphorylation
c. the citric acid cycle
d. glycolysis
Mri studies of persons using inhalants have revealed that the drug causes changes in brain structure that include
The proteins and dna of organisms that share a recent common ancestor are more ____________________ than the proteins and dna of organisms that do not share a recent common ancestor.
In order to begin the process of fat digestion the fat globules must be
The answer is A) emulsified by bile salts
In order for the fat to be digested, the fat globules must be emulsified first by bile salts in the stomach. By emulsifying we mean the breaking of globules of fat into much smaller emulsion droplets. The liver produces the bile salts which breakdowns fats into small droplets. The fat then is digested by lipase.
Guinea pig coat color is determined by a single gene. The allele for black coat color is dominant to brown. In a cross between two black-haired guinea pigs, 20 offspring are born. If both parents were heterozygous, probability would predict that approximately how many of the 20 offspring would have brown hair?
Answer: 5
The representation of the genotypes of heterozygous parents with dominant black coat is: Bb
In F1 generation by the cross of parents, the type of hair colour of the offspring can be predicted by punnet squares.
Offspring that are homozygous dominant (bb): 1 out of 4 or 1/4=25%
For 20 offsprings, the number of offsprings with brown hair=( ¼)20= 5
What is most likely the cause of the differences in the birds in the picture?
A) interbreeding
B) change in diet
C) mutations in DNA
Eliminate
D) mutagens in the environment
c) mutations in DNA (is the right answer)
Living things require energy to grow and reproduce and to carry out different cell processes. certain cells can capture energy from the sun through the process of what
These cells can capture energy from the sun through the process of photosynthesis.
What is photosynthesis?Plants are living things that exist on both land and in water and contain chlorophyll. They come in a variety of colors, shapes, and sizes. Since they are autotrophic organisms, photosynthesis is how they obtain their food.
Food is produced in the leaves through the process of photosynthesis, and it is then transported throughout the plant by phloem. Diffusion is the mechanism that moves the sugar molecules to the phloem.
Carbon dioxide is converted into glucose and oxygen during photosynthesis, the process by which plants and other autotrophic organisms produce food.
Therefore, the process of photosynthesis allows these cells to absorb solar energy.
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Regardless of where people live, they are dependent on resources produced in a. rural areas. c. national parks. b. urban areas. d. wilderness areas
A client is prescribed postural drainage because secretions are building in the superior segment of the lower lobes. which is the best position to teach the client to use for postural drainage?
The best position for client with postural drainage is TRENDELENBURG POSITION for circulatory, pulmonary and abdominal like obesity, abdominal distention, and hiatal hernia. And Side lying Position for vascular like axillofemoral bypass graft and musculoskeletal like arthritis, recent rib fracture, shoulder bursitis or tendonitis.
One in every ____ infants are born with down syndrome.
Tim is frequently hungry, which makes it difficult to adopt and stick with a calorie-reduced diet. what hormone is secreted by stomach cells to stimulate appetite in the brain?
A 9-month old baby with a macular rash is brought to the hospital. parents report that the rash started on the face, spread to the rest of the body, and was preceded with coldlike symptoms. there are small reddish spots in the baby's mouth. what is the diagnosis? a 9-month old baby with a macular rash is brought to the hospital. parents report that the rash started on the face, spread to the rest of the body, and was preceded with coldlike symptoms. there are small reddish spots in the baby's mouth. what is the diagnosis? smallpox rubeola chickenpox shingles
The diagnosis for the baby's macular rash could be measles, a highly contagious viral infection that causes a high fever, conjunctivitis, sore throat, and a characteristic rash that starts on the face and spreads to the extremities.
Explanation:The diagnosis for the 9-month-old baby with a macular rash that started on the face, spread to the rest of the body, and was preceded by coldlike symptoms, along with small reddish spots in the mouth, could be measles. Measles is a highly contagious viral infection that causes a high fever, conjunctivitis, sore throat, and a characteristic rash that starts on the face and spreads to the extremities. The presence of Koplik's spots in the mouth is a classic diagnostic sign of measles.
To confirm the diagnosis, serological tests can be performed. Treatment for measles focuses on managing symptoms, but the disease usually resolves without treatment within a week.
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The type of fluid used to manipulate fluid shifts among compartments states is
Sedative-hypnotic agents bind to which receptors in the brain?
Sedative-hypnotic agents bind to GABA receptors in the brain.
Explanation:Sedative-hypnotic agents bind to gamma-aminobutyric acid (GABA) receptors in the brain.
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One of the active chemicals in the fly agaric mushroom is _____