Answer:
16 KJ or 16,720 J energy has gained by the water.
Explanation:
Given data:
Mass of water = m = 100 g
Temperature difference = ΔT= (60 - 20)∘C
specific heat of water 1 calorie = c = 4.18 J
To find:
Heat absorbed by water = q=?
Formula:
q = m . c . ΔT
Solution:
q = (100 g) x (4.18J/g ∘C) x (60 - 20)∘C
= 16,720 J
Final answer:
The water gains 4,000 small calories (cal) or 4 large calories (Cal) of heat when a nut is burned and raises the temperature of the water from 20°C to 60°C.
Explanation:
To calculate the amount of heat gained by the water when a nut is burned, we can use the formula:
Q = mcΔT
where:
Q is the heat in calories,
m is the mass of the water in grams,
c is the specific heat capacity of water (1 cal/g°C),
ΔT is the change in temperature in degrees Celsius (°C).
Given:
m = 100 g,
ΔT = 60°C - 20°C = 40°C.
Plugging the values into the formula:
Q = 100 g × 1 cal/g°C × 40°C = 4000 cal
Since 1,000 small calories (cal) make up 1 large calorie (Cal), the heat gain in large calories would be:
4 large Cal (since 4000 cal / 1000 = 4 Cal).
A heterozygous male and a homozygous female plants are cross-pollinated. What is the genotypic ratio of the offspring
Answer:
When a heterozygous male and homozygous female plants are cross-pollinated the genotypic ratio of the offspring will be tt, Tt
Explanation:
In a pea plant, when the heterozygous male plant (Tt) is cross-pollinated with homozygous female plant (tt) ;
T × t = Tt
t × t = tt
t × T = tT
t × t = tt
Therefore, the genotypic ratio of the offspring is short and tall (tt, Tt) because the dominance of tall trait is less that the short trait, indeed the chances of tall offspring is low.
How does the building of models help you understand the structure of carbon molecule?
Answer:
Models help us to get a better understanding of structures and processes which otherwise would have been difficult to understand. Models illustrate structures ans processes in the form of chemical equation, mathematical equations, computer simulations, drawings etc.
The building of a carbon molecule will help us understand the structure of a carbon atom and the various bonds that it can form, The model will be able to depict the various ways in which the electronic configuration of the carbon atom can change to form different compounds.
The area that includes everything between the cell membrane and the nucleus of a cell is called the ___________.
A.
vacuole
B.
Golgi apparatus
C.
mitochondria
D.
cytoplasm
Answer:
D. Cytoplasm.
Answer:
The area that includes everything between the cell membrane and the nucleus of a cell is called the CYTOPLASM
Explanation:
Cytoplasm includes everything in the cell and outside the nucleus of that cell
1. Wind and moving water provide____ energy. A.chemical
B.mechanical
C.thermal
D.none of the above
plz help;-;
Answer: most likely D
Explanation:
A was close, B not it and C is only for heat use
Wind and moving water provide mechanical energy. They are renewable energy sources that harness the kinetic energy of natural movements to generate electricity. The correct answer is option (B).
Wind and moving water provide a form of energy known as mechanical energy. This type of energy is harnessed through the movement of turbines which convert the kinetic energy of wind or flowing water into electrical energy. Both forms of energy, wind power and hydroelectric power (hydroenergy), are considered renewable energy sources.
Winds and moving water are driven by the energy from the sun, which heats the Earth unevenly, causing wind, and evaporates water to high elevations, where it can later fall and flow due to gravity, powering turbines as it moves. This mechanism is similar across different forms of energy generation, such as fossil fuels, biofuels, nuclear energy, and solar thermal systems, where a spinning turbine creates an electric current.
Thus, the correct answer to the student's question is option B) mechanical energy.
Which sentence supports the statement that complex multicellular
Complete Question: Which sentence supports the statement that complex, multicellular organisms are made up of specialized cells that each perform different functions for the body?
A. Human liver cells make proteins that promote homeostasis that neurons do not.
B. Different species of bacteria have different shapes and structures to their cells.
C. The DNA in the cell nucleus of chimpanzees and humans are 98% identical.
D. Prokaryotes do not have nuclei, but they can still carry out the basic functions of life.
Answer:
A. Human liver cells make proteins that promote homeostasis that neurons do not.
Complex multicellular organisms are made up of different cells which are combined to form the non-identical organs and tissues e.g (heart, liver etc.) .These organs carry out totally different function for the sustenance of organism.
Which of the following best describes
the Kinetic Theory Model?
A. All particles in matter eventually stop moving.
B. Energy changes have no effect on the state of
matter.
C. When particles in matter gain or lose energy, they
change state.
D. No matter how much energy is present, particles
never move.
Answer:
is C
Explanation:
Teoría cinética molecular. Las leyes de los gases desarrolladas por Boyle, Charles y Gay-Lussac, que establecieron las principales relaciones entre la presión, el volumen y la temperatura de un gas, están basadas en observaciones empíricas y describen el comportamiento de los gases en términos macroscópicos.
The statement which best describes the Kinetic Theory Model is that When particles in matter gain or lose energy, they change state. Thus, the correct option for this question is C.
What is the kinetic theory model?The kinetic theory model may be defined as a type of theory that significantly states that all matter is composed of particles in motion and that the rate of motion varies directly with the temperature. As the temperature rises, the movement of particles gradually increases.
According to this theory model, the molecular composition of the gas is in terms of a large number of submicroscopic particles which include atoms and molecules. Further, the theory explains that gas pressure arises due to particles colliding with each other and the walls of the container.
Therefore, when particles in matter gain or lose energy, they would definitely change state with respect to the energy that is administered to them. Thus, the correct option for this question is C.
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QUESTION 1
An excessive, abnormally large scar is a:
O callus.
O corn.
O cicatrix.
O keloid.
A keloid is an excessive, abnormally large scar caused by an overproduction of collagen that exceeds the original wound and may continue to grow even after it has healed.
Explanation:The excessive, abnormally large scar referred to in the question is known as a keloid. Unlike a callus, corn, or cicatrix, which are all common types of scar formations, a keloid forms when the healing process in the skin extends beyond the original wound, resulting in a large raised scar. This is due to an overproduction of collagen, creating a smooth, hard growth. It is important to note that keloids may continue to grow long after the wound has healed.
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In pea plants, the gene for the color of the seed has two alleles. In the Punnett square shown below, the dominant allele (Y) represents yellow and the recessive allele (y) represents green.
ANSWERS:
Based on the Punnett square, what percentage of offspring would have genotype YY?
0%
25%
50%
100%
All organisms, including plants, undergo what essential process?
All organisms, including plants, undergo what essential process?
A. Photosynthesis
B. Cellular Respiration.
C. Sexual reproduction.
Answer:All the living organisms undergo cellular respiration.
Option B
Explanation:Cellular respiration is the process of production of energy from food. This process includes different chemical reactions which squeeze out energy from the food and store that in form of Adenosine Tri Phosphate for the cells to use in future. Thus without cellular respiration, a cell can't survive.
Now the photosynthesis is only restricted within a group of autotrophs which contains chlorophyll and can use Sun's energy to produce glucose from carbon dioxide and water.
Sexual reproduction is also not a feature of many lower organisms like bacteria which divide by means of binary fusion.
HELP ME ASAP PLEASE!
Answer:
Incomplete metamorphosis
Explanation:
Because there's no egg in the beginning
Is cypris autotrophic or heterotrophic
Cypris is a heterotroph.
Explanation:
Cypris are the members of kingdom Animalia which are multicellular crustaceans. These organisms are both marine and fresh water, but most of them are fresh water pond dwellers. They are microscopic, which needs to be seen through microscope at 40x for proper visualization.
Cypris are heterotrophs which live in the debris below the water bodies and collect their food from them only. They are covered by 2 shells, and a pair of antennae and limbs project out of the body. They are easily eaten by hydra and small fishes as delicious food.
Many things can cause an organism to become extinct. Here are some possible
causes of extinction. Select the human causes of extinction.
Global warming
Pollution
Habitat destruction
Disease
ANSWER QUICK WILL GIVE BRANLIEST
The human cause for extinction are as follows:
Pollution Habitat destructionAnswer: Option B and C
Explanation:
Extinction of an species or organism is defined as condition where existence of certain species of living organism will completely be destroyed.
Extinction can be caused both by natural causes such as evolutionary changes, Global warming and also by man-made activities such as deforestation, Pollution and Habitat destruction etc. Cause of Infectious disease usually does not take as primary one.
Human has a major involvement in polluting the environment through various activities which can destroy the existence of various living species and habitat destruction which is also due to the activity of human (deforestation or over harvesting of lands for agriculture)can cause extinction.
which action is a reflex action
A reflex action is an automatic or involuntary and the rapid response to a particular stimulus, which minimizes any kind of damage to the body from the potentially harmful conditions, such as touching something hot.
What is Reflex action?A reflex, or reflex action, is an involuntary, unplanned sequence or action and is nearly instantaneous response to a specific stimulus. Reflexes are found to be of varying levels of complexity in different organisms with a different type of nervous system. A reflex action occurs by the neural pathways in the nervous system called the reflex arcs.
The common examples of reflex action are coughing, yawning and blinking of eyes.
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A reflex action is an involuntary response to a stimulus, exemplified by jеrking the hand away from a hot surface, and occurs via a reflex arc in the nervous system.
The concept of reflex action is fundamental in biology when discussing the nervous system and its responses to stimuli. A reflex action is an involuntary and nearly instantaneous movement that occurs in response to a stimulus. Unlike voluntary actions, which are under the conscious control of the mind, reflex actions happen automatically, without the need for conscious thought. An example of a reflex action can be the jеrking away of the hand from a hot surface. This action is because the external stimulus (the heat from the hot surface) starts impulses in neurons at the body's surface, prompting an immediate response.
Reflex actions are carried out through a reflex arc, consisting of sensory neurons, interneurons, and motor neurons. When a stimulus is strong enough, it triggers sensory neurons, which pass the information via interneurons to motor neurons, resulting in a reflex movement. This process happens very rapidly and does not involve the brain.
This is an observable trait of an organism that can mask the recessive trait
Answer:
Dominant Trait
Explanation:
The Dominant trait is well, dominant, and therefore over powers the recessive trait most of the time.
Viperfish hunt by attracting prey to their glowing bellies. This adaptation is most useful for the
ecosystem.
Answer:
Viperfish hunt by attracting prey to their glowing bellies. This adaptation is most useful for the open-ocean ecosystem.
Explanation:
In the open ocean ecosystem, not much diversity of organisms is present. In order to survive in the open ocean, an organism must have certain adaptations which will allow it to get the basic resources needed for survival. If adaptations are not provided, organisms will nor be able to survive in the open ocean ecosystem.
The adaptation of glowing bellies in the viperfish allows it to attract its preys due to which it is able to get food and survive in the open ocean ecosystem.
Which of these is used to find the estimated age range of a fossil?
Absolute dating
Half-life
Index fossils
Radioactive dating
Answer:Its Absolute Dating
Explanation:
absolute dating methods provide chronological estimates of the age of certain geological materials associated with fossils, and even direct age measurements of the fossil material itself.
how are bacterial cells and human cells alike? A. they allow oxygen through cellwall B. they allow carbon dioxide through cell wall C. they allow nutrients through cell membrane D.they allow nutrients through nuclear membrane
Answer:
I'm pretty certain its C, but I'm not a science wiz. It is 100% not a or b though cause they dont have cell walls
The correct option is C. They allow nutrients through cell membrane.
What is cell?
Cell is the basic unit of life. There are two kinds of cell such as prokaryotic cell and eukaryotic cell. Bacterial cell is a prokaryotic cell. Humans are example of eukaryotic cell.
Cell is surrounded by plasma membrane or cell membrane. Plasma membrane allow nutrients through cell membrane.
In addition to defining the cell's borders, the plasma membrane also enables the cell to interact with its surroundings in a controlled manner.
Therefore, The correct option is C. They allow nutrients through cell membrane.
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Which describes a population depending on an abiotic factor?
Answer:
Hello!
I'm assuming the options are:
A) A bean plant does not grow well because it is planted where there are many weedy plants.
B) Coral reef organisms carry out photosynthesis using the sunlight that passes through the clear water above.
C) Squirrels eat eggs from a bird's nest.
D) A hawk preys on a mouse.
The answer is B) Coral reef organisms carry out photosynthesis using the sunlight that passes through the clear water above.
Explanation:
An abiotic factor is a non-living factor of an ecosystem that influences the biotic factors and the population inhabiting that ecosystem.Option A describes competition between two plants. This is an example of a relationship between two biotic factors (bean plant and weeds)C again describes the food relationship between two biotic factors (squirrel and bird's eggs).D is an example of predator-prey relationship which is also an example of two biotic factors influencing each other. B describes how coral reefs (biotic factor) utilizes sunlight (abiotic factor) to produce food and and oxygen through photosynthesis.Abiotic factors such as sunlight, rainfall, and temperature affect populations. Organisms have a range of tolerance for abiotic factors, and some species act as indicator species for specific factors.
Explanation:Abiotic factors are the physical and chemical characteristics of the environment that affect populations. For example, the amount of sunlight, rainfall, available nutrients, oxygen levels, and temperature are all abiotic factors. These factors determine the success of populations and can influence the types of organisms that can live in a particular area. For instance, the amount of annual rainfall can determine whether a region is a grassland or forest, which in turn affects the types of animals living there.
Abiotic limiting factors can have a range of tolerance for a population. A species may have a narrow tolerance range for a specific abiotic factor. For instance, a freshwater fish species may have a narrow tolerance range for dissolved oxygen in the water. If the dissolved oxygen level decreases due to eutrophication, the species will die. This fish species can act as an indicator species, as its presence or absence indicates the dissolved oxygen content of the lake.
Gestalt psychology focuses on _____.
Explanation:
Psychology broadly includes the scientific study of the mind and human behavior and contains many sub specialties which include: clinical human development, social behavior, and the human cognitive process.
Gestalt psychology considers the mind and body together as a unit. Specifically it focuses on the notion of perception in humans as distinct from seeing- our expectations and individual motivations have an influence on perception too.
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What are two ways in which cement plants and carbon to the atmosphere
Answer:
The production of cement releases greenhouse gas emissions both directly and indirectly: the heating of limestone releases CO2 directly, while the burning of fossil fuels to heat the kiln indirectly results in CO2 emissions.
Explanation:
What effect do you think this change in amino acid sequence will have on the structure of the polypeptide
A change in gene sequence can lead to a different amino acid being added to a polypeptide chain instead of the normal one. This causes a change in protein structure and function.
Everyone lives in a watershed explain two procotions people can take in their yard and driveway to help protect their local watershed.
Answer:
People can save their local watershed by conserving water from their yards and driveways.
Explanation:
Local watersheds can be protected by not adding toxic household material , reusing the water for other household purposes etc.
Removal trash and invasive species in vegetation are the two precautions.
Pick up the trash and remove invasive species are the two precautions people can take in their yard and driveway to help protect their local watershed. Trash or garbage can cause big problem in the way of watershed.
Healthy watersheds provide services to ecosystem such as nutrient cycling, carbon storage, erosion, control, increased biodiversity, soil formation, water storage, water filtration, flood control, timber and recreation so these two precautions are important for protection of of watershed.
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Select all that apply.
Which of the following statements are true about hemophilia?
It is an example of an autosomal dominant disorder.
It is an example of an autosomal recessive disorder.
It is an example of a sex-linked disorder.
It involves a protein inside the red blood cells.
It is a disease in which a person has trouble stopping bleeding.
Its a sex linked disorder and it makes stopping the bleeding slower in affected individuals.
Explanation:Hemophilia is a sex linked recessive disorder which occurs due to a gene present in the X chromosome. The presence of this gene in males surely make the individual hemophilic because the Y chromosome doesn't contain any dominant factor of this gene. In females, the recessive individuals become carriers without expression of this gene. Only the dominant individuals in females expresses Hemophilia.
Its a disease where the Christmas factor (Factor IX) or the antihemophilic factor(Factor VIII) is absent in the affected individual. This makes the cascade theory incomplete and there's a defect in blood clotting in both the intrinsic and extrinsic pathways. Thus the persons if starts bleeding, loses a lot of blood before coming to a stability.
Answer:C.) It is an example of a sex-linked disorder. E.) It is a disease in which a person has trouble stopping bleeding.
Explanation:
some plants taht grow on forest floors where there isn't much light have bigger
Some plants that grow on forest floors where there isn't much light have bigger ecological advantages.
Explanation:
Some of the plants that grow on the forest floor do not get ample amount of sunlight. Sunlight is required for the process of photosynthesis. These plants are less in number a lot of purposes. They become food for the herbivorous animals push up they also supply cheap form of wood for construction purposes. They also provide the support system for epiphytes and other climbers.
Suppose that a biochemist performs an experiment that indicates that the recommended daily allowance of Vitamin E (C29H50O2) should be doubled from 9.0 mg per day to 18.0 mg per day. The biochemist reports his results in a scientific journal.
Which of the following is a good question to ask about the experiment after reading the biochemist's conclusions?
On what group(s) of people did the biochemist perform his experiment?
Can Vitamin E be toxic to humans?
Is Vitamin E a fat-soluble or water-soluble substance?
A.
I, II, and III
B.
II only
C.
I only
D.
II and III
Answer:
The correct option is C) 1 only
Explanation:
It would be necessary to ask from the scientist about the group of people on which he performed his experiment because it might be that certain other factor was the influence for the change in the requirement of Vitamin E, It might be that the people of that specific area or country might have a Vitamin E deficiency due to which there requirement was more for Vitamin E. Or there might be any other environmental or genetic factor influencing the change.
Which cells uses mitosis and meiosis
Answer:
Somatic cells use mitosis
Explanation:
somatic cells are body cells or skin cells
Which process results in offspring with a genetic makeup identical to that of the parent?
1. Fusion of gametes
2. Vegetative propagation
3. External fertilization
4. Meiotic cell division
Answer:1
Explanation:
Which words from the excerpt best help to define the
tone? Check all that apply.
What is the function of a lyosome
Answer:
Explanation:
Inside a cell, numerous organelles function to remove wastes. One of the key organelles involved in digestion and waste removal is the lysosome. Lysosomes are organelles that contain digestive enzymes. They digest excess or worn out organelles, food particles, and engulfed viruses or bacteria.
3. Given the inequality 4x + 5y 2 12, determine
algebraically if each point is a solution PLZZZ HELP FOR MATH
a. (-2, 4)
b.(3,-2)
c. (0,2)
d. (2,5)
Answer:
x= 0, y = 2
Explanation:
4x + 5y +2 = 12
Let's suppose that
x = 0
y = 2
By putting the values of x and y
4(0) + 5( 2) + 2 = 12
0 + 10 + 2 = 12
12 = 12
Hence, it is proved that x = 0 and y = 2