If a bicyclist travels 30 kilometers in two hours, her average speed is a 15 km/h. b 2 km/h. c 30 km/h. d 60 km/h.

Answer:

The greatest in the first blank

the least in the second blank

Explanation:

In the energy pyramid, bears would be placed as tertiary consumers (or higher) and would have about 10 percent of the energy available from the trophic level below them, which is considerably less than what is available at the base of the pyramid.

If you were to place the bear into the energy pyramid, the bear would go on level tertiary consumer (or higher, depending on the specific diet of the bear) and have approximately 10 percent of the energy available to it from the level below.

Bears are typically classified as omnivores or occasionally as carnivores, depending on their diet. Assuming that producers in this pyramid have 1,000,000 kilocalories of energy, primary consumers would have 10 percent of that, which is 100,000 kilocalories. Since energy transfer between trophic levels is about 10 percent, the energy available to secondary consumers would be 10,000 kilocalories (10 percent of primary consumers), and the tertiary consumers would have approximately 1,000 kilocalories available to them (10 percent of secondary consumers). Bears, being tertiary consumers or sometimes quaternary when consuming other carnivores, would fall into the category with significantly less energy availability compared to the bottom of the pyramid.

Answer: c....retrograde motion

The geocentric model of the solar system helped to explain the retrograde motion of Venus.

Retrograde motion, the apparent backward movement of a planet in the sky, is a phenomenon attributed to the differing orbital speeds of planets within the solar system.

Venus, in particular, exhibits retrograde motion due to its orbital relationship with Earth.

As Venus completes its orbit around the Sun, there are times when it outpaces Earth, moving ahead in its orbit, and times when it lags behind.

The geocentric model, an early conceptualization of the solar system, played a pivotal role in explaining retrograde motion.

This model positioned Earth at the center of the universe, with other celestial bodies, including Venus, orbiting around it.

The understanding derived from this model helped clarify why retrograde motion occurs.

When Venus is positioned ahead of Earth in its orbit, the relative motion creates the illusion of backward movement when observed from Earth.

As Earth catches up and overtakes Venus, the normal forward motion resumes.

Although the geocentric model has been superseded by the heliocentric model, where the Sun is at the center of the solar system, the fundamental principle of varying orbital speeds contributing to retrograde motion remains unchanged.

This celestial dance continues to captivate astronomers, offering insights into the dynamic interactions and relative positions of planets in our solar system.

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Ciliated epithelial cells. Cilia are tiny hair like structures on the surface of the cell. The hairs sweep hair, mucus, trapped dust and bacteria up to the back of the throat where it can be swallowed.

Cartilage is a soft, spongy connective tissue. The bones in a synovial joint are connected by ligaments. Ligaments are a type of connective tissue and are tough, fibrous and slightly elastic. They connect bone to bone and help keep the joint together.

Each type of muscle tissue in the human body has a unique structure and a specific role. Skeletal muscle moves bones and other structures. Cardiac muscle contracts the heart to pump blood. The smooth muscle tissue that forms organs like the stomach and bladder changes shape to facilitate bodily functions

Nervous tissue is composed of three main parts: nerves, the spinal cord and the brain. The primary function of nervous tissue is to receive stimuli and send the impulse to the spinal cord and brain. The brain sends back a response to the muscles via the nerves.

Epithelial tissue covers and lines surfaces, connective tissue binds cells and organs, muscular tissue moves the body, and nervous tissue transmits signals.

Epithelial tissue is composed of sheets of cells that cover the exterior surfaces of the body, line internal cavities and passageways, and form certain glands. Its functions include protection, absorption, secretion, and selective permeability.

Connective tissue binds cells and organs together. It provides support, protection, and integration of body parts. Examples of connective tissue include bones, cartilage, blood, and adipose tissue.

Muscular tissue is involved in movement. There are three types of muscle tissue: skeletal muscle that is voluntary, smooth muscle that is involuntary, and cardiac muscle that is found in the heart.

Nervous tissue is responsible for transmitting electrical signals throughout the body. It enables communication between different regions of the body through nerve impulses.

Answer:

Malnourished

Answer: Malnutrition

Explanation:

Malnutrition can be defined as the condition in which the person is deficient in one or more nutrients.

This condition can lead to many diseases in the body of a person because a nutrient in the body is responsible for many functions.

Being deficient in one or nutrient will affect the body adversely. The body needs all the types of nutrients to work properly.

Hence, the correct term for nutrient deficient people is malnutrition.

Answer:

jdskljadlkjsalkjdlkjsalkdjlsa

Explanation:

Answer:

letter A there u go i hope this helps you

Answer:Single, double, triple, and quadruple form

Explanation:

Answer:

B

Explanation:

Answer:Organizing changes to the shape of the cell membrane that allow the membrane to "pinch" in two during cell division.

Ensuring that chromosomes are properly distributed to daughter cells by creating and shortening mitotic spindle fibers.

Overseeing other important changes to cell membrane shape, such as those seen in phagocytosis.

Explanation:

he main function of the centriole is to help with cell division in animal cells.  The centrioles help in the formation of the spindle fibers that separate the chromosomes during cell division (mitosis).

Answer: 2 lsidgyf

Explanation:idgar

The killing of grasshoppers by an insecticide would likely lead to a decline in the frog population due to decreased food availability, with potential ecosystem-wide effects. Frogs might suffer from nutritional shortages and be forced to seek out less suitable food sources, affecting their reproductive success and survival.

If grasshoppers were to be killed by an insecticide, we could predict several effects on the population of frogs that feed on these insects. First, the immediate availability of food for frogs would decrease, potentially leading to a decline in their numbers due to starvation or poor nutrition. This could put pressure on the frogs to find alternative food sources, which might not be as nutritious or abundant as grasshoppers. Additionally, the loss of grasshoppers could disrupt the local ecosystem since grasshoppers often play a role in plant pollination and the cycling of nutrients. The ecosystem dynamics could shift, causing further indirect effects on the frog population and other species within the food web. If grasshoppers are a significant food source, the decrease could directly affect frogs' reproductive success and survival rates, potentially leading to their population decline.

The first step of the Calvin cycle is the combination of carbon dioxide with RuBP to produce PGA. This step is catalyzed by the enzyme RuBisCO and is the initial act of carbon fixation in the photosynthetic process of converting atmospheric carbon dioxide into glucose.

The first step of the Calvin-Benson cycle, also known simply as the Calvin cycle, involves the enzyme RuBisCO fixing carbon dioxide to a five-carbon molecule called ribulose biphosphate (RuBP). This reaction produces two molecules of 3-phosphoglycerate (PGA). Therefore, the correct first step of the Calvin-Benson cycle is: Carbon dioxide and RuBP combine to make PGA.

The Calvin cycle is a process of photosynthesis where ATP and NADPH, produced in the light-dependent reactions, provide the energy to convert carbon dioxide from the atmosphere into organic compounds like glucose. Throughout the cycle, the energy is used to regenerate RuBP, allowing the cycle to prepare for more carbon fixation and continue the process of photosynthesis.

Answer:

mouth

Explanation:

Answer: Genes tell the body how to behave in certain ways, so there are genes that represent particular characteristics, and lack of genes or changes in them can lead to diseases and problems in the body.

Explanation:

Answer:

answer is Bthe high tides will be much higher than usual

Answer:

D) The moths are living in an environment with dark trees.

Explanation:

Answer:

Option D

Explanation:

The dark colored moths are increasing with time. This clearly indicates that the dark colored moths are able to save themselves from the predators. The predators of moth identify them only by the contrasting color of the moth and its habitat. Moths live on trees. Thus, if dark colored moths are able to survive, they might be living in habitat which could make them untraceable. Hence, it is obvious to say that dark colored moths are living on dark trees. Also the light colored moths are living on dark trees and this is the reason why they are easily identified and killed by the predators.

Thus, option D is correct

Answer: normal Flora is the bacteria that came into contact with our body immediately we were born because bacteria are found everywhere i.e in airparticles and from then we live with them and they help our body to be antitoxic to the disease that may be caused by another same bacteria causing microorganisms

Explanation:

Answer:

D

Explanation:

because there is no bad hypothesis,

mistakes happena and thats why she should try again,

never give up

D is only logicall

If the results of an experiment do not support a scientist's hypothesis, the scientist should conclude B. She must have made a mistake or forgotten something.

Scientists understand that experiments can yield unexpected results due to various factors such as errors in the experimental procedure, flawed equipment, or unaccounted variables.

Therefore, the scientist should consider the possibility of errors or overlooked factors before drawing any definitive conclusions about the hypothesis. This is a fundamental principle of scientific inquiry and methodology.

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Answer:

The girl above is correct it is 8 billion.

Answer:

relationships among organisms and evolutionary relationships for organisms with a shared common ancestor.

Final answer:

Cladograms use branches to show evolutionary relationships by illustrating how species diverged from common ancestors, with nodes representing the emergence of new traits.

Explanation:

The branches on a cladogram illustrate the evolutionary relationships among organisms by showing how groups of organisms diverged from common ancestors over time. Each branch or node represents a point where a new trait emerged, distinguishing one group from others, thereby forming a new clade. The length of the branches can indicate the amount of molecular changes that have occurred over time. As organisms evolve, they might acquire unique traits that set them apart from their ancestors, and these traits can also be represented on the cladogram.

For instance, in a cladogram that includes mammals, reptiles, and birds, the reptile clade includes birds, indicating that birds evolved from reptiles, contradicting the separate classification by Linnaeus. By observing the branching patterns and the traits at each node, we can interpret phylogenetic relationships and hypothesize how different species are related by descent.

Answer: the wolves would starve

Explanation:

the grass fed the deer, rabbits, etc they fed on. The deer, rabbits, etc would stave. The wolves have less food and decrease in population.

Answer:  c.- Carbohydrate molecules

Explanation:

-The light-independent reactions, or dark reactions, of photosynthesis are chemical reactions that convert carbon dioxide and other compounds into glucose. These reactions occur in the stroma, the fluid-filled area of a chloroplast outside the thylakoid membranes.

-These reactions use the ATP and NADPH synthesized during the exergonic light-dependent reactions to provide the energy for the synthesis of glucose and other organic molecules from inorganic carbon dioxide and water.

Answer:

Science is not limited to the laboratory because it has done in a laboratory to study the physical, chemical and biological aspects of the natural system. It mean that science presents everywhere and happening at all times. It also mean that anyone can become a scientist and they can conduct the experiments with the data and a hypothesis.

Explanation:

Science is the study of the physical, chemical, biological, and mathematical study of nature. The science is studied in laboratory conditions to validate the various reaction and principles occurring in natural systems.

In a laboratory, small system or model is made to study the particular aspect of a large system. Thereby, science in the laboratory helps to find out the science of the actual world. Various principles, machines and designs are inspired by the natural systems.

Answer:

D human because decomposer are mainly fungi and bacteria,producer are plants, consumers are every organism that eats something else it include herbivores, carnivores(animals that eat other animals), parasites (animals that live off of other organisms by harming it), and scavengers (animals that eat dead animal carcasses)

Humans play the role of a consumer in a food web as they eat other organisms to gain energy and nutrients. They do not play the role of producers or decomposers. The term 'human' alone does not specify a role in a food web.

In the context of a food web, we humans play the role of a consumer. Consumers are organisms that eat other organisms to gain energy and nutrients. We certainly fit into this category as we eat both plant (producers) and animal species (other consumers).

Producers are incorrect because they are typically plants that make their own food through photosynthesis which humans do not do. Decomposers are also incorrect as they break down dead or decaying organisms, a role humans don't play in the food web. Lastly, while 'Human' is within the options, it is too broad a term for this question as it doesn’t specify the role that humans play.

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Answer:

false

Explanation:

classification defies viruses

Answer:

False

Explanation:

Football players cells are the same as the cheerleader. But being his larger size he does have more cells.

Answer:

b just b got it correct

Explanation:

Answer:

In photosynthesis plant convert light energy to food(glucose)using co2,water and in the presence os chlorophyll.

Explanation:

Answer:

I am thinking it is cognition..

cognition-the mental action or process of acquiring knowledge and understanding through thought, experience, and the senses.

If not it will be instinct

Explanation:

Answer:

The correct answer is cognition.

Explanation:

Cognition in animals is a process by which animals get information and learning by using their experience, senses, intelligence, perception, memory.

It gives the ability of an animal to know the meaning of the signal it sends and receives by using its senses and experience. The ability of cognition is very much important for animals because it helps them to differentiate between dangerous and non-dangerous chemical signals.

It also helps them to know their territory by marking through chemical signals in their territory and getting their mates. Therefore the correct answer is cognition.

Answer:

b

Explanation:

because i said so

Answer:

Option B, Surface tension is caused by the cohesion or "stickiness" of water molecules.

Explanation:

The water molecules have a unique property of attracting each other resulting into surface tension. Hence option B is correct

Option A is incorrect because solid water i.e ice is 9 % less dense than the liquid water and hence it floats on water

Option C is incorrect because water is  considered as a good solvent because of its polarity .

Option D is incorrect because water takes time to get heated due to its high specific heat.