John and Joshua used a light microscope to observe a plant cell. They indicated the magnification as x1000. Given the eye piece lens magnification x10. Work out the objective lens magnification.
Answer:
Objective Lens Magnification = ×100
Explanation:
In a microscope, the ocular (eyepiece) lenses are usually to a magnification of ×10, meaning that it magnifies the image 10 times. While the standard objective lenses have magnifications of ×4, ×10, ×40, and ×100.
In order to work out the total magnification, the individual magnifications of the ocular and objective lenses have to be known, after which a simple multiplication of both magnifications will give the total magnification used.
Total Magnification = (eyepiece lens magnification) × (objective lens magnification)
1000 = 10 × obejcetive lens magnification
Dividing both sides by 10
Objective lens magnification = 1000 ÷ 10 = 10
∴ Objective lens magnification = ×100
Describe some types of resources and their limits using text as guide.
Resources are classified on the basis of their quantity into two classes: renewable and non-renewable resources. Non-renewable resources cannot replenish.
What are resources?A resource is a physical material which the humans need and value such as the land, air, and water resources. Resources are characterized as renewable or nonrenewable on the basis of their quantity on this globe. A renewable resource is the one which can replenish itself at the rate as it is used, while a non-renewable resource has a limited supply.
Resources are characterized as renewable or non-renewable. A renewable resource can replenish itself at the rate at which it is used, while a nonrenewable resource has a very limited supply. Renewable resources include timber, wind, and solar energy while non-renewable resources include coal and fuels such as natural gas.
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Can someone help me, please?
The chromosome set 21 show nondisjunction.
What is a chromosome?
Under a light microscope, chromosomes are typically only discernible during the metaphase of cell division (where all chromosomes are aligned in the center of the cell in their condensed form).Prior to this, each chromosome undergoes a process known as chromosome duplication (S phase), during which a centromere connects both copies, forming either the X-shaped structure shown above (if the centromere is situated equatorially) or a two-arm structure (if it is situated distally) depending on where it is situated.Sister chromatids are the new name for the linked copies.A metaphase chromosome is an X-shaped structure that forms during metaphase and is highly compressed, making it the easiest to recognise and study.Chromosomes in animal cells attain their maximum level of compaction during chromosome segregation, or anaphase.To know more about chromosome, click the link given below:
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Explain how a scientist might use a karyotyoe to study genetic disorders
Which of the following is true of interphase? (A) It consists of the G1, S, and G2 phases.
(B) It composes a large part of the life cycle of a cell. (C) It is a time of cell growth and
development
(D) A cell is preparing for division during this time. (E) All of the above are true.
Answer:
D OR B
Explanation:
I THINK IT IS SANA MAKATULONG SA INYO
Influenza is a bacterial infection whose symptoms include sore throat and fever. True or False
Answer: Im positive is true i hope this helps
Explanation: i leanded this last year
Please help me with this. Will Mark Brainliest
Which of these belongs to a trophic level with the most energy?
Berries
Grasshopper
Mice
Owl
Answer:
berries
Explanation:
yw
Answer:
a berries
Explanation:
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Name the plant cell organelle where photosynthesis occurs
Answer:
It is called the Chloroplast.
Explanation:
"In plants, photosynthesis takes place in chloroplasts, which contain the chlorophyll. Chloroplasts are surrounded by a double membrane and contain a third inner membrane, called the thylakoid membrane, that forms long folds within the organelle."
Which are sources of adult stem cells? Select three options.
Answer:
where’s the picture?
Explanation:
Answer:
It's 1, 3, 4
I got it right on the quiz
Pea plants can have yellow seeds or green seeds. which conclusion about the meaning of y is correct if the allele combination yy is for yellow seeds? yellow and dominant green and recessive yellow and recessive green and dominant
Pea plants can have yellow seeds as the meaning of y is correct if the allele combination yy is for yellow seeds are yellow and dominant.
This question involves a seed color gene, which has two alleles Y and y. Y, which represents the dominant allele codes for the YELLOW trait while y which represents the recessive allele codes for the GREEN trait. Therefore, a plant with Yy will have YELLOW SEEDS because the dominant Y allele is present.
What are two alleles?Gregor Mendel has stated that a gene comes with two alleles. According to his law of dominance, one of the alleles called the DOMINANT allele is capable of masking the phenotypic expression of another allele called the RECESSIVE allele.
Thus it is clear that yellow and dominant are the meaning of y is correct if the allele combination yy is for yellow seeds.
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Answer:
its A yellow and dom
Explanation:
just took the test edg spr 22
When is the MOST serious damage from teratogens likely to occur?
A. conception
B. prenatal development
C. postnatal development
D. during the birthing process
Answer:
it's a)conception
Explanation:
the answer is a
Blockage of pulmonary blood flow by a traveling clot or similar obstruction is
Blockage of pulmonary blood flow by a traveling clot or similar obstruction is known as a Pulmonary Embolism.
A pulmonary embolism occurs when a blood clot, typically originating from a deep vein thrombosis (DVT), breaks free and travels through the bloodstream, eventually lodging in the pulmonary arteries. This obstruction can cause a decrease in blood oxygen levels and potentially lead to damage to lung tissue or even death if not treated promptly.
This condition can cause a range of symptoms such as shortness of breath, chest pain, and coughing up blood. Immediate medical attention is required in cases of suspected pulmonary embolism to prevent further complications. Treatment may include blood-thinning medication or procedures to remove the clot.
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a pathway has two parts: a bundle of cns axons and a collection of neuron cell bodies in the cns. True/false?
The statement is true. A pathway typically consists of both a bundle of CNS (central nervous system) axons and a collection of neuron cell bodies in the CNS.
A pathway in the context of the nervous system refers to a specific route or circuit along which information is transmitted between different regions of the nervous system. These pathways involve the coordination of both axons, which are the long projections of nerve cells responsible for transmitting signals, and neuron cell bodies, which contain the nucleus and other organelles necessary for cellular functions.
The bundle of CNS axons forms the physical connection between different regions of the nervous system, allowing for the transmission of electrical impulses or signals. The collection of neuron cell bodies in the CNS, on the other hand, serves as the central processing center and integration point for incoming and outgoing signals.
Therefore, a pathway typically comprises both a bundle of CNS axons and a collection of neuron cell bodies in the CNS, making the statement true.
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what do the eeg waves look like when brain activity is "desynchronized"?
Brain activity is considered "desynchronized" when the EEG waves show a low-amplitude, fast and irregular pattern.
When brain activity is desynchronized, the EEG waves appear as low-amplitude and irregular patterns with a high frequency. This means that the electrical signals recorded by the EEG electrodes exhibit a fast and random fluctuation. The waves do not show the characteristic rhythmic patterns that are observed during synchronized brain activity.
In the desynchronized state, the brain is highly active and engaged in various cognitive processes. It is commonly associated with wakefulness, alertness, and active mental processing. This pattern is often observed during tasks that require focused attention, problem-solving, or information processing. The brain regions are communicating and interacting with each other in a highly dynamic and flexible manner, allowing for rapid information processing and integration.
Desynchronized EEG waves can be indicative of a state of heightened arousal or cognitive engagement. They are commonly observed during periods of wakefulness, when the individual is actively engaged in cognitive tasks or experiencing heightened sensory input. This pattern is in contrast to synchronized EEG waves, which are typically observed during relaxed states or during specific stages of sleep.
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Which of these is the BEST way to assure a healthy animal stays healthy?
A) Enlist the help of an ethologist to observe its behavior
B) Breed it frequently
C) Proper nutrition
D) All of the above
help asap 20 pts and branliest
Define the following adaptations and provide at least one example: Definition Example Camouflage Mimicry Warning Coloration
Answer:
Alright.
Explanation:
Camouflage!
'Camouflage is the use of any combination of materials, coloration, or illumination for concealment, either by making animals or objects hard to see or by disguising them as something else.'
(If it's not that then it's most likely Mimicry-)
Blank and Blank factors can affect an organism's traits.
The correct fill in the blanks are as Gene and environmental factors affect an organism trade.
Even though your genes play a significant role in how your body develops and works, they do not alone determine your attributes. A person's genes and environment work together to influence most characteristics. Everything that influences your qualities outside of your DNA is considered environmental.
They are incredibly diverse and have a wide range of potential effects on you, both alone and in conjunction with genes. This activity looks at only a few of the almost infinite environmental influences that go into creating each person's particular combination of characteristics, health, and identity.
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Assuming the population is in hardy-weinberg equilibrium, calculate the frequency of the wild-type (nonmutant) allele for the enzyme glucocerebrosidase.
Answer:
34
Explanation:
the wild type of the nonmutant to get it done before the end of the day
PLEASE!! HELP ME!! HURRY!! PLEASE HELP ME FAST!! I'M BEING TIMED!! I REALLY NEED HELP!! PLEASE HELP ME!!
1. What are some facts about Photosynthesis and Cellular Respiration?
2. What are the connections between Photosynthesis and Cellular Respiration?
Answer:
Without photosynthesis there would be no glucose or oxygen for respiration. Without respiration there would be no carbon dioxide for photosynthesis.
Explanation: Cellular respiration is the process of putting energy from glucose into a usable form in a molecule called ATP. It is a series of complex biochemical reactions where all the energy stored in glucose (which stores a lot) is transferred to other molecules, which can use it more efficiently. The equation of respiration is C6H12O6+6O2→6CO2+6H2O+energy in ATPPhotosynthesis can be thought of as the opposite reaction. Photosynthesis absorbsenergy, rather than emits energy. Plant cells which photosynthesise take in CO2and H2O from the atmosphere and light energy from the sun, and undergo the reaction6CO2+6H2O+energy from sun→C6H12O6+6O2The two are clearly dependent on each other. Without photosynthesis, there wouldn't be any glucose or oxygen which kick off the respiration reaction. Without respiration, plants would use up all the CO2 and starve to death. Photosynthesis requires the products from respiration, and respiration requires the products from photosynthesis.
________________________
Hope this helps! Alos hope you read this on time, Good luck!!
Photosynthesis takes in sunlight, carbon dioxide, and water and produces glucose and oxygen as byproducts. Cellular respiration converts chemical energy from oxygen molecules or nutrients into ATP and produces water and carbon dioxide as byproducts.
Both reactions involve water, carbon dioxide, glucose, oxygen, and energy. They are sort of opposites, because photosynthesis takes in carbon dioxide & water and releases oxygen when it produces energy, and cellular respiration takes in oxygen and releases carbon dioxide & water when it produces energy.
Please help me with these 3 questions. I don't need an explanation, just the number.
1. Rigo left 62 grams of ice in a closed container. When he came back he found that the ice had melted. How much water would be expected to have in the container?
2. Rust is formed when iron reacts with the oxygen in moist air. Suppose 100 g of iron metal rusts. We weigh the rust and find that the rust has a mass of 143 g. What mass of oxygen reacted with the iron?
3. 15 grams of hydrogen and 7.5 grand of oxygen were placed in a beaker. An explosion happened inside the beaker that produced water. The beaker was never opened. How many grams of water were produced?
Thank you for anyone who has taken the time to answer these questions. I really do appreciate you :)
Answer:
how to construct a scale and vernier
Si se toma un gallo morado (raza andaluza) y se cruza con una gallina blanca de la misma raza, los polluelos serán azules. Al cruzar estos polluelos entre sí, se obtendrá la relación fenotípica de
Answer:
Más pollitos son de color púrpura, algunos son híbridos, significa diferente color y pocos pollitos tienen color blanco.
Explicación:
Si se toma un gallo morado (raza andaluza) y se cruza con una gallina blanca de la misma raza, los polluelos serán azules. Al cruzar estos polluelos entre sí, la relación fenotípica es diferente en su descendencia. Más pollitos son de color púrpura, algunos son híbridos, significa diferente color y pocos pollitos tienen color blanco. Esto se debe a que el color púrpura tiene un alelo dominante debido a que más pollitos tienen color púrpura y menos pollitos tienen color blanco debido al alelo recesivo.
A lesion is located at the ventral-most portion of someone’s spinal cord. Which sense is most likely to be directly affected?.
A lesion is located at the ventral-most portion of someone’s spinal cord, then sense which is most likely to be affected is : pressure.
What is the function of ventral-most portion of spinal cord?The ventral nerve cord is a major structure of the invertebrate central nervous system and is the functional equivalent of the vertebrate spinal cord. The ventral nerve cord coordinates neural signaling from the brain to body and vice versa and integrating sensory input and locomotor output.
In human anatomy, ventral side of the spinal cord corresponds to the anterior side whereas, the dorsal side corresponds to the posterior side.
Damage to the ventral horn affects the anterior spinothalamic pathway, that carries crude touch and pressure sensations.
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Linnaeus classified organisms into two kingdoms. How was his system of classification impacted after the invention of the microscope?
Answer:
A is the answer
Explanation:
2. How do adaptations help organisms?
A. It helps the organisms change colors.
B. It improves its ability to survive and reproduce.
C. It improves its ability to change species.
D. It helps the organism become a fossil.
Answer:
B. It improves its ability to survive and reproduce.
Explanation:
A neuron that conducts pain sensations to the central nervous system would be classified as a(n):_____.
a. motor neuron.
b. sensory or afferent neurons.
c. efferent neurons.
d. association neuron.
e. interneuron.
Answer:
B
Explanation:
It is having to do with sensories and pain has to do with sensory things.
If the mass of an object increases, what also increases
Answer:
The force does too
Explanation:
From the universal law of gravitation, F ∝ m1m. Since force is directly proportional to mass, if the mass of either of the object increases, the force also increases.
Question 3 of 26
Which sentence describes both computer models and mathematical models?
O A. They are able to produce exact copies of real-life objects and
systems.
B. They use mental images to compare a process to a conceptual
idea so that it is easier to visualize.
C. They are useful for representing the physical shape or function of
an object.
D. They can involve looking for patterns and relationships in
numerical data.
Computer and mathematical models are both described in option D. they can entail searching for patterns and connections in numerical data.
To represent and simulate real-world systems and objects, mathematical and computer models both use numerical data. To produce predictions and offer insights into the behavior of the systems they represent, they rely on the analysis of data patterns and linkages.
Mathematical models employ equations and formulas to describe the relationships between variables, in contrast to computer models, which use software to generate virtual representations of objects and systems. To mimic and forecast real-world phenomena, both kinds of models, however, rely on data and mathematical analysis.
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What is the process of breaking down lactic acid in the liver?
- Reduction
- Respiration
- Oxidation
- Ventilation
Answer:
Oxidation
Explanation:
it is Oxidation because oxygen combines with lactic acid to form carbon dioxide
In the risk-assessment test, after a single brief exposure to a cat on the surface of a laboratory burrow system, the rats?
In the risk-assessment test, after a single brief exposure to a cat on the surface of a laboratory burrow system, the rats flee to their burrows and freeze.
What is a laboratory burrow system?We built a mock-up burrow system from of inexpensive materials like plastic pipe that is easily accessible for testing vertebrate pest control fumigants in the lab. The device's versatility comes from its ease of modification into many configurations. Additionally, the gadget enables controlled comparative study of fumigant chemicals, direct observation of test animals during exposure, immediate access to them, and rapid and precise monitoring of fumigant dispersal and concentrations. A huge room, a small chamber, and a tunnel system make up the infrared translucent black plastic burrow system. Under the VBS, a grid of 32 ID sensors is positioned to automatically determine the whereabouts of each individual animal. Video clips are regularly recorded by an infrared camera mounted above the VBS.To learn more about pest control, refer:
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Different methods of classification are used for living things. Which data type is most useful for determining how closely two organisms are related?
A. DNA
B. Diet
C. Behavior
D. Appearance
The DNA data type is still most useful for determining the degree of similarity between two organisms.
The greater the genetic distance between two species, the less closely related they are. We can learn the most about how species are related to one another and thus how to classify them by studying genetics and DNA.
The hereditary substance in humans but almost all other organisms is DNA, or deoxyribonucleic acid. Almost every cell in a person's body contains the same DNA. The majority of DNA is found in the cell nucleus (where it is known as nuclear DNA), but a small amount can also be found inside the mitochondria. Mitochondria are cell structures that convert energy from food into the a form that cells can use.
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