Wind and moving water provide _______ energy.
a. chemical
b. thermal
c. electromagnetic
d. mechanical

Answer:

B) It is an educated guess that can be tested by experimentation

Final answer:

A scientific theory is a comprehensive explanation of natural phenomena that has withstood rigorous testing and is widely supported by evidence. It is far more than an educated guess, as it is based on a significant body of facts and confirmed through observation and experimentation. So the correct option is D.

Explanation:

The correct answer to the question is D) It is a general statement that is supported by many scientific observations. A scientific theory is a well-substantiated explanation of some aspect of the natural world that is supported by a large body of facts gathered through observation and experimentation. It is more than just an educated guess or a hypothesis; it is a comprehensive explanation that has been repeatedly tested and confirmed and can explain a wide range of phenomena.

For example, the theory of gravity explains why objects are attracted to one another, and the theory of evolution explains the diversity of life on Earth. These theories have been validated by numerous experiments and observations and are widely accepted by the scientific community because they have withstood rigorous testing.

While theories can be used to make predictions, they are, at their core, explanations that help us understand the world around us. Theories can change over time with new evidence, but such changes are rare and occur through a systematic and often lengthy scientific process. It is important to distinguish between the colloquial use of the term 'theory' as a guess and its scientific usage as a well-supported explanation.

Answer:

Identify the dependent and independent variables in the following examples. a. Height of bean plants is recorded daily for 2 weeks growing in different fertilizers.

Height of the bean plant is the dependent variable while the different fertilizer is the independent variable that the bean plant height depends on

Explanation:

In the given example, the type of fertilizer used on bean plants is the independent variable and the resulting height of the bean plants is the dependent variable.

In these examples, the independent variable is the factor that you manipulate or change. In this case, the independent variable is the type of fertilizer used on the bean plants. On the other hand, the dependent variable is what you measure or observe change in as a result of the independent variable. Here, the dependent variable is the height of the bean plants. The height of the bean plants may change based on the type of fertilizer used, making it dependent on the independent variable.

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Answer:

In biology, immunity is the balanced state of multicellular organisms having adequate biological defenses to fight infection, disease, or other unwanted biological invasion, while having adequate tolerance to avoid allergy, and autoimmune diseases.

Answer:

The process of infecting or the state of being infected

Explanation:

Answer:

exergonic e.g. photosynthesis

Explanation:

Answer: endergonic e.g. photosynthesis

Explanation: Endergonic reactions are chemical reactions an input of energy to proceed while electronic reactions are chemical reactions that do not require an input of energy rather in an exergonic reaction energy is released.

Photosynthesis is an example of an endergonic reaction because it requires energy. In photosynthesis, the solar energy absorbed by chlorophyll and other light absorbing pigments in plants are conserved as ATP and NADPH which are the sources of energy to drive the remaining reactions of photosynthesis. The solar energy is converted to chemical energy used in driving the photosynthetic reactions. Chemical equation for the photosynthesis is 6CO2 + 6H2O + solar energy ---> C6H12O6 + 6O2.

Answer:

The significance of AUG codon is that it signals the ribosome to start translation.

Explanation: Codons are three nucleotides sequence found on the mRNA strand that codes for a specific amino acid. There are 64 codons, one is the start codon, three are stop codons while 61 codes for twenty amino acids. AUG is the start codon which signals the ribosome to start protein synthesis. The AUG codon also codes for amino acid methionine.

Answer:

              Phenotype is physical appearance of the individual while genotype is the genetic makeup of the individual.

Explanation:

                      Two parents having normal phenotype but effected individual is due to the parents may be Carrier for the particular deseis and the gene responsible for the desies may be in recessive form and the parents are not effected.  The gene is not present in dominant form and can not show its effect but the parents are not effected and the daughter may be affected by certain desiese.

Answer: This is possible only if the two parents ar e heterozygous for the trait and the genetic disorder is inherited in a recessive fashion.

Explanation: Phenotype is the outward appearance of an organism. Genotype is the genetic makeup of an individual, a genotype can not be seen but it is manifested in an observable trait known as phenotype. Every trait is controlled by a pair of gene inherited one from each parent. When the two parents are heterozygous for the trait (having one dominant allele and one recessive allele for the trait), a child can inherit two recessive alleles one from each parent.

For example, when two parents are heterozygous for sickle cell disease AS, a cross between them will produce an offspring with sickle cell disease. As x As =AA, As, As, and ss. (A is dominant and s is recessive).

Answer:

D. Production of oxygen bubbles will increase as distance of plants from the light source decrease

Production of oxygen bubbles will increase as distance of plants from the light source decrease. The correct option is D.

Photosynthesis is a process that plants and other organisms use to convert light energy into chemical energy that can then be released to fuel the organism's activities via cellular respiration.

Photosynthesis is essential since it's the process by which plants convert carbon dioxide into oxygen using sunlight.

Animals require oxygen to survive, and plants serve as nature's air filter, filtering out harmful carbon dioxide.

When conducting a photosynthesis rate experiment with the aquatic plant Elodea, the production of oxygen bubbles increases as the plants' distance from the light source decreases.

Thus, the correct option is D.

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Answer:  Cellular differentiation is the process where a cell changes from one cell type to another

Explanation:

Usually, the cell changes to a more specialized type. Differentiation occurs numerous times during the development of a multicellular organism as it changes from a simple zygote to a complex system of tissues and cell types.

I hope this helps.....

Final answer:

Cellular differentiation is the process by which unspecialized cells become specialized into various cell types with specific functions, a key concept in developmental biology. Differentiation is normal in growth, whereas metaplasia is an abnormal cell conversion that can be associated with disease.

Explanation:

The process where a cell changes from one cell type to another is known as cellular differentiation, which is a pivotal aspect of developmental biology. This differentiation process involves unspecialized cells, such as stem cells, becoming specialized into one of the many different types of cells that make up the human body, like neurons or epithelial cells. Cellular differentiation is crucial, as it is the means by which various cell types develop the unique structures and functions necessary to perform specific tasks in the body.

It's important to distinguish between cellular differentiation and metaplasia. While differentiation refers to the normal development of cells into more specialized forms, metaplasia is the abnormal conversion of one mature cell type to another and often occurs in response to chronic irritation or inflammation, as seen in diseases like cirrhosis of the liver.

Different layers present in the sun's atmosphere and  layers we will see is explained below.

Explanation:

1.The sun's atmosphere is composed of several layers, mainly the photosphere, the chromosphere and the corona. These outer layers is the sun's energy, which has bubbled up from the sun's interior layers, is detected as sunlight.

The photosphere is the deepest layer of the Sun's atomsphere which we can observe directly. It reaches from the surface visible at the center of the solar disk to about 250 miles (400 km) above that.

The Sun's atmosphere is made up of the photosphere, chromosphere, and corona. We can see the photosphere with the eye. The chromosphere and corona can only be seen during a total solar eclipse.

The Sun's atmosphere is composed of three primary layers: the photosphere, the chromosphere, and the corona. The photosphere is the lowest layer and is the part of the Sun that we can see with our eyes. It's essentially the Sun's visible surface.

Above the photosphere, we have the chromosphere. This layer gets its name from the Greek word for 'color' because a red glow is often seen around the Sun during solar eclipses. However, the chromosphere is generally not visible to the eye unless during a total solar eclipse.

Beyond the chromosphere lies the corona, which is the outermost layer of the sun's atmosphere. It is visible during a total solar eclipse as a white halo around the Sun but otherwise is too faint to see due to the brightness of the Sun itself.

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Answer:

it helps animals adapt to the places around them

Answer:

Explanation:

Fusion requires temperatures about 100 million Kelvin (approximately six times hotter than the sun's core).

At these temperatures, hydrogen is a plasma, not a gas. ...

The sun achieves these temperatures by its large mass and the force of gravity compressing this mass in the core.

Answer:

The gas cloud must be very dense.

Atoms must be stripped of their electrons.

Temperatures must exceed 14 million Kelvin.

Explanation:

I got it right and it says it's not

Gravitational attraction must stop.

Helium atoms must break down into hydrogen.

Answer:

heterozygous is the correct answer

Explanation:

Answer:

the macro molecule say that

Explanation:

Fovea is a tiny pit located in the macula of the retina in the eye provides the accurate vision.

Explanation:

The Fovea is mainly used for sharp central vision, that is very essential for human activities like reading and driving.

In the middle of the retina is a small dimple called the fovea or fovea centralis. A thin layer of light receptor cell covers the inner surface of the choroid.

It produces high visual clarity in the eye that produces sharpest vision and greatest color discrimination. The sharpness is because of high concentration of cone cells in the fovea.

Fovea, the blind spot is where the optic nerve connects to the retina in the back of each eye is known as optic disk.

Answer:

Well I say true I mean if your scared to talk to a adult then your friend should be the first person to ask for help

Explanation:

Explanation:

The 6-kingdom system of classification divides the former kingdom Monera into two kingdoms, Eubacteria and

Archaebacteria

Answer: Archaebacteria . Is the answer period

Explanation:

Answer:

Glucose is a form of chemical energy which is produced in the plants during the process of photosynthesis.

Explanation: Photosynthesis is a process in which light energy is converted into chemical energy. In this process, carbondioxode enters through small opening called stomata and water is absorbed by the plant from the soil in the presence of sunlight produces oxygen and glucose. Oxygen is released in the atmosphere and glucose is stored in different parts of plant body.

Answer:

Unwanted/unplanned growth weeds will cover the whole area.

Explanation:

Because the area was previously forested hillside, it has all the environmental conditions (nutrients, rainfall, etc.) to support the vegetation. Hence, Although the soil layer is thin, natural weathering process would increase the depth of soil layer over the years. Later on, biogeochemical cycles on top layer will result into successful nutrients release to support vegetation. Hence, in a few years, there will be growth of weeds (unplanned vegegation).

Answer:

The plants that once lived here should start to re-establish in the area.

Answer:

Capillary Exchange Mechanisms

Diffusion, the most widely-used mechanism, allows the flow of small molecules across capillaries such as glucose and oxygen from the blood into the tissues and carbon dioxide from the tissue into the blood.

Explanation:

Answer:

1. Pangaea

2. subduction

3. convection

4. slab pull, ridge push

5. earthquake

6. Pacific

Explanation:

Timothy does not get a promotion at work because he has cancer is an example of genetic discrimination.

Explanation:

Genetic discrimination is termed so when an employer or an insurance company treats indifferently an individual with gene mutation or heritable diseases.

The act of not giving promotion and using the genetic information for the reason by the employer is indifferent and termed genetic discrimination as in case of cancer where life expectancy and large insurance claim is the reason.

Insurance companies do not give benefits or insurance to potential people having or prone for having the mutation and heredity disease.

To help overcome this discrimination federal level laws have been implemented as Genetic information non discrimination act. It strictly prohibits the indifferent behaviour of the employers and insurance companies.

Answer:

D.) Timothy does not get a promotion at work b/c he has cancer.

Explanation:

Hope this helps :D

Bones in different animals show a pattern of similarity known as homologous structures, indicating a common evolutionary past; though they may have adapted over time for various functions. Homologous structures share common ancestry, while analogous structures serve similar functions but evolve independently. This evidence supports the concept of evolution, helping to trace the lineage and relationships among species.

The bones in various animals are not arranged identically across all species; however, they often exhibit similarities that suggest a common evolutionary past. These similarities are a result of the bones being derived from a common ancestor, with changes occurring over time due to evolutionary pressures.

Homologous structures in organisms, such as the bones in the limbs of humans, dogs, and whales, share the same basic layout that originated from their shared ancestor's appendages. While the bones might have evolved differently to suit different functions, they maintain a consistent pattern.

It is important to distinguish between homologous and analogous structures. Homologous structures share a common embryonic origin, while analogous structures have similar functions but different origins.

For example, the bones in a whale's front flipper and the human arm are homologous, not analogous, while wings of butterflies are analogous but not homologous to bird wings. Some structures, like the wings of bats and birds, can be both analogous and homologous because they serve the same function and also share a similar structure.

Bones, which are organs comprised of tissues, come in various shapes and sizes. The 206 bones in the human skeleton are categorized by shape and function. This structural diversity among species provides evidence for evolution and helps scientists understand the relationships between different organisms.

The answer is no, the bones are not arranged in the same way in each animal.

The arrangement of bones, known as skeletal structure, varies significantly among different animal species. This variation is a result of evolutionary adaptations to diverse environments and lifestyles. There are five main types of skeletal systems found in animals:

1. Hydrostatic skeleton: Found in soft-bodied animals like earthworms and jellyfish, it consists of a fluid-filled cavity that provides structural support.

2. Exoskeleton: This is the hard outer shell that supports and protects the bodies of arthropods such as insects, spiders, and crustaceans.

3. Endoskeleton: Composed of bone or cartilage, this internal skeleton is found in vertebrates, including fish, amphibians, reptiles, birds, and mammals. Despite being endoskeletons, the specific arrangement and number of bones can differ greatly between these classes. For example, the skeleton of a bird is adapted for flight, with lightweight, hollow bones, while the skeleton of a whale is adapted for swimming, with a streamlined shape and strong, dense bones.

4. Shell: Some animals, like mollusks and turtles, have a hard shell that serves as protection and support.

5. None (Acellular): Some animals, like sponges, do not have a true skeletal system.

Even within the same class of animals, such as mammals, the skeletal structure can vary. For instance, the human skeleton is adapted for bipedal locomotion, while the skeleton of a bat is adapted for flight. Similarly, the skeleton of a dolphin is adapted for an aquatic lifestyle, with a spinal column that is less flexible than that of a land mammal to aid in efficient swimming.

In conclusion, while all vertebrates have an endoskeleton, the arrangement and structure of the bones are tailored to each species' unique ecological niche, resulting in a wide diversity of skeletal arrangements across the animal kingdom.

Answer:

The saprotrophs and detritivores are placed to one side of the pyramid because they are decomposers which feed on dead bodies of all the living organisms which are present in the trophic levels i. e. producers, primary consumers, secondary consumers and tertiary consumers etc. When they feed on dead bodies, they released nutrients which are used by the plants.

Answer:

D random population distribution

Explanation:

for plato

Answer:

D. random population distribution

Explanation:

Answer:

they were a paracite

Explanation:

the mitochondrial theorem or something. basically they live in a symbiotic relationship but originally it was two separate life forms. this is true for the mitochondria and chloroplasts

Answer:

They begin as bacteria but are then enlarged by larger cells.

Answer:

option C is the right point

1. Clownfish lays hundreds of eggs, but only 10 to 15% survive in adulthood. This completely fits for graph number 4 which shows rapid declining in the population by time.

2. 80% of elephant calves survive into adulthood. This is described graphically by graph number 1 where great number of population size increases stably over a certain period of time.

3. A population of beetles in a newly colonized field grows exponentially. So an exponential graph - a "J" shaped curve in graph number 2  which shows an exponential increase in population size.

4. A wolf population grows over a certain period and then stabilizes, can be described by graph number 3 which is a "S" shaped curve.

It shows that after increasing for certain period of time the population stabilizes due to any environmental factors.

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Final answer:

A reptile's body temperature will decrease with a 20-degree Celsius drop in outside temperature due to their ectothermic nature. They become sluggish and may enter estivation to conserve energy, performing only vital functions to survive.

Explanation:

If the outside temperature decreases by 20 degrees Celsius, a reptile's body temperature will also decrease. This is because reptiles are ectothermic organisms, meaning their internal body temperature is determined by their surrounding environment. Unlike endothermic animals, which can generate internal heat to maintain constant body temperature, reptiles must rely on behavioral adaptations to regulate their temperature. Reptiles, such as an American alligator basking in the sun, absorb heat when it is available to increase their body temperature.

When environmental temperatures drop, reptiles like snakes will seek shelter and become sluggish as their body temperature falls. This slowdown can affect their heart rate, breathing rate, and overall metabolic function. Some reptiles may enter a state of estivation, a period of inactivity and lowered metabolic rate, to conserve energy and survive until temperatures become favorable again. In essence, a reptile's body will perform only critical activities necessary to sustain its living state during such times.

Final answer:

A reptile's body temperature will likely decrease if the outside temperature drops by 20 degrees Celsius because reptiles are ectotherms and their temperature varies with environmental conditions. They may enter brumation to cope with the cold.

Explanation:

If the outside temperature decreases by 20 degrees Celsius, the body temperature of a reptile is likely to decrease as well since reptiles are ectotherms. Reptiles rely on external heat sources to regulate their body temperature. Without behavioral adaptations such as basking in the sun, a reptile’s body temperature will drop in response to the cooler environmental temperatures. This is because reptiles are also poikilotherms, meaning their body temperature varies with the environment.

In colder conditions, reptiles may enter a state of brumation, a dormancy-like state where metabolism slows down and the reptile becomes very sluggish. It is important for reptiles to find ways to maintain their body temperature, as a significant drop can affect their physiological processes and overall survival.

Answer:   The answer is objective lens.