Which choice describes a community?

a forest of birds, insects, and squirrels

a desert of sand, rocks, hawks, and snakes

a hole in which a snake lives

the desert

No every part of an organism have the same chance of becoming fossilized . Hard parts of the body preserve because they have biologically deposited minerals.

Fossilization can be defined as the physical, chemical, and biological processes that lead to the preservation of plant and animal remains over time.

Fossils include the organisms remains, such as plant or animal tissues, shells, teeth or bones, they also include traces of life such as foot prints. Fossil are generally formed After an animal dies, their soft parts decompose leaving the hard parts, like the skeleton, behind. This becomes buried by small particles of rock called sediment.

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As the distance from the heat lamp increased, the temperature of the object being heated would decrease.

Heat transfer is the process of exchange of thermal energy between two or more objects or systems due to a temperature difference between them. The three modes of heat transfer are conduction, convection, and radiation.

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The information missing in the boxes to correctly complete this feedback loop about the feedback in thyroid hormone secretion will be

It should be noted that parathyroid is the structure in the image. These glands, located behind the thyroid at the bottom of your neck, are about the size of a grain of rice.

The parathyroid hormone produced by the thyroid glands helps maintain the right balance of calcium in the bloodstream and in tissues that depend on calcium for proper functioning.

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Answer:

Knowing science will help you live without the aid of technology.Memorizing science facts will help you become more intelligent.

Explanation:

Studying science can help you to be a better member of society because, by understanding how science works, it will help you to make better decisions. ... Above all, science helps us acquire accurate information about the natural world and about society and culture.

(hope it helps)

Guard cells control the opening and closing of the stomata in plant cells.

Therefore, Guard cells function to control the opening and closing of the stomata in plant cells.

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Answer:

Anther

Explanation:

The cardiac output will increase approximately 10 fold if the metabolic rate increases by the same factor.

When metabolic rate increases, the body's demand for oxygen and nutrients also increases. To meet this demand, the cardiovascular system adjusts by increasing cardiac output, which is the volume of blood pumped by the heart per unit of time. Cardiac output is determined by multiplying stroke volume (the amount of blood ejected by the heart with each beat) by heart rate (the number of beats per minute).

When metabolic rate increases 10 fold, both stroke volume and heart rate increase proportionally to maintain the balance. As a result, cardiac output also increases approximately 10 fold.

The relationship between metabolic rate and cardiac output is an example of the body's physiological response to increased energy demands. The cardiovascular system ensures an adequate supply of oxygen and nutrients to the tissues during heightened metabolic activity. By increasing cardiac output, the body delivers more blood to the tissues, facilitating oxygen and nutrient delivery and waste removal. This adaptation helps maintain homeostasis and support the increased energy requirements of the body during periods of elevated metabolic rate.

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The student should avoid using yellow light, which has wavelength around 550-580, which will not get absorbed at all since the pigment absorbing this wavelength is missing

Color Wavelength (nm)

Red        650 - 800

Orange   590 - 640

Yellow   550 - 580

Blue   460 - 480

Indigo   440 - 450

Violet   390 - 430

The distance over which a periodic wave's form repeats is known as the wavelength in physics.  It is a property of both traveling waves and standing waves as well as other spatial wave patterns.

It is the distance between two successive corresponding locations of the same phase on the wave, such as two nearby crests, troughs, or zero crossings. The spatial frequency is the reciprocal of wavelength. The Greek letter lambda () is frequently used to represent wavelength.

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Full Question :A student completes a PET experiment using chloroplasts from leaves lacking pigments that absorb in the 550 nm to 600 nm wavelength range. Which color of light should they avoid in their experiment if they want to measure activity at different wavelengths? Absorbance 360 760 460560660 Wavelength (nm)

O Blue

O Orange

O Yellow

O Red

O Violet

Answer:

A :)

Explanation:

I had the same question and I got it right

Answer:

The digestive system breaks food down into nutrients such as glucose. Now the circulatory system enters the picture. It transports glucose and other nutrients from the digestive system to the cells. The circulatory system also transports oxygen from the lungs to the cells.

Answer:

Abiotic means something dead. Its not that hard.

Explanation:

The abiotic factors which can affect the number of birds living on the tree line in temperate mountain forest ecosystem is the frequent high winds. Thus, the correct option is C.

An ecosystem consists of the community of organisms together with their physical environment in which they live. Ecosystems can be of different sizes and can be aquatic or terrestrial. Different categories of the terrestrial ecosystem are known as biomes. In ecosystems, both the matter and energy are conserved.

An ecosystem is not a stable system however it depends upon several factors which include both biotic (living) and abiotic (non-living) factors. Any disturbance in these factors could results in disturbance of ecosystem as a whole.

The factors include light, temperature, water, chemicals, gases, wind and soil. In some environments, like marine environments, pressure and sound are the important abiotic factor. In the mountain ecosystems, frequent high winds is an important abiotic factor.

Therefore, the correct option is C.

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Your question is incomplete, most probably the complete question is:

Many birds live in mountainous temperate forest ecosystems. Above the tree line on mountains, however, the ecosystems change. Few birds are found there. Many factors contribute to the lower number of birds see above a mountain’s tree line. Which of these factors is abiotic?

a.) high-flying predators

b.) limited food

c.) frequent high winds

d.) no trees for shelter

Answer:

A plant with no chlorophyll means there is a plant that does not produce its own food via photosynthesis.

Explanation:

Answer:

it can be a hard like thing to get it from each

Darwin was able to dispel the concept of fixity of species with his research.

This is an age-old concept which was widely accepted by many people, namely that the characteristics of each species of organism were fixed and could not change.

Darwin was able to offer proof that species might evolve through time and that this change was brought about by natural selection.

He proposed that environmental forces might cause genetic alterations in species, which can result in the emergence of new species. Moreover, he was able to demonstrate that the distinctions between species were not necessarily stable but may change throughout time.

These data suggested that species were dynamic and subject to long-term change. Darwin was able to offer proof that the species on Earth have changed over time owing to natural selection and have developed through time.

This ran counter to the traditional idea of a species' fixity, which was generally held at the time.

Complete Question:

What age-old concept was Darwin able to dispel with his research?

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Answer:

C. Meiosis results in four cells, but mitosis results in two cells.

Explanation:

Mitosis is a process where a single cell divides into two identical daughter cells (cell division), whereas meiosis is a process where a single cell divides twice to produce four cells containing half the original amount of genetic information.

Though it was once thought to be under good control, active tuberculosis (TB) returned as a public health threat shortly after the beginning of the AIDS epidemic.

Tuberculosis (TB) is a bacterial infection caused by Mycobacterium tuberculosis that primarily affects the lungs. In the early to mid-20th century, TB was a major public health threat in many parts of the world, but advances in medicine, such as the development of antibiotics and improved public health measures, led to a significant decrease in the incidence of TB.

However, in the 1980s, the emergence of the AIDS epidemic led to a resurgence of TB as a public health threat. HIV weakens the immune system, making individuals more susceptible to infections like TB.

Furthermore, people with HIV are more likely to develop active TB, rather than remaining in a latent state, which means that the bacteria are inactive and do not cause symptoms.

The co-infection of TB and HIV posed a significant challenge for public health authorities and health care providers, as treating both infections at the same time can be complicated, and failure to treat one can lead to treatment failure of the other.

Consequently, TB continues to be a major public health issue, particularly in low- and middle-income countries with high rates of HIV infection.

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Answer:

c la nutrición nos renueva y proporciona materia

Answer:

Nitrogenous Base Purines and pyrimidines are the two categories of nitrogenous bases. Adenine and guanine are purines. Cytosine, thymine, and uracil are pyrimidines. ...

Pentose Sugar In DNA, the sugar is 2'-deoxyribose. In RNA, the sugar is ribose. ...

Phosphate Group A single phosphate group is PO 43-. The phosphorus atom is the central atom. ...

Explanation:

Answer: B. All are considered nonrenewable resources

D. All can be categorized as energy resources.

Explanation:

Non renewable resources are the resources that are in fixed quantity and can be used up. These include wood, petroleum, coal, steel, aluminum etc.

An energy resource simply refers to the resources that can be used to produce heat or electricity such as wood, petroleum, coal etc.

Coal, petroleum and wood are not renewable resources and they're not inexhaustible. They are exhaustible and non renewable resource.

Therefore, the correct options are B and D.

Answer:

Its D i think yea I thinks its d hopefully

Production of gametes from diploid cells exists the correct answer. This is not one of the functions of mitosis.

Multicellular creatures depend on mitosis to produce new cells for growth and to replace damaged or worn-out cells, such as skin cells. Asexual reproduction in many single-celled organisms is mostly accomplished through the process of mitosis.

When a cell splits into two, mitosis, a type of cell division, ensures that each new daughter cell has the same genomic makeup.

During mitosis, two cells known as daughter cells are produced. The number of chromosomes must remain constant, and any newly formed daughter cells must have genetic material that is similar to that of the parent cell.

After cell division, it aids in keeping the same number of chromosomes in the daughter cells. It is in charge of the expansion and maturation of multicellular organisms. It aids in the healing of broken tissues. It aids in maintaining the right size of the cell.

Therefore, the correct answer is option a) divides the chromosomal number in half.

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Answer:

D

Explanation:

Index fossils are the basis for defining boundaries in the geologic time scale and for the correlation of strata. They also have a wide geographic distribution and a short range through time

Answer:

D

Explanation:

The sodium-potassium pump has a higher affinity for Na when it is open to the side of the membrane where Na is in greater concentration.What is a sodium-potassium pump?The sodium-potassium pump is a transmembrane protein in the plasma membrane of animal cells that exchanges sodium ions (Na+) for potassium ions (K+).

It is responsible for generating and maintaining the Na+ and K+ ion gradients, which are critical for many physiological processes, including electrical excitability, cell volume regulation, and nutrient uptake.The pump helps to maintain the proper concentration of ions inside and outside of cells. This is achieved through active transport, in which energy is expended to move ions against their concentration gradients. The pump moves three Na+ ions out of the cell for every two K+ ions it moves into the cell.What happens when the sodium-potassium pump is open to the side of the membrane where Na is in greater concentration?The sodium-potassium pump has a higher affinity for Na when it is open to the side of the membrane where Na is in greater concentration.

When Na+ ions bind to the cytoplasmic side of the protein, the pump undergoes a conformational change that allows it to transport the ions across the membrane. At the same time, two K+ ions from the extracellular fluid bind to the protein and trigger another conformational change that releases the Na+ ions to the outside of the cell. The K+ ions are then transported into the cell, where they bind to the cytoplasmic side of the protein and initiate another round of ion transport. The main answer is that the sodium-potassium pump has a higher affinity for Na when it is open to the side of the membrane where Na is in greater concentration.

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Answer:

The SAGE instrument measures the amount of ozone and other trace gases that are in the atmosphere by measuring the amount of sunlight that comes through the atmosphere at different altitudes.

Explanation:

hello,

endangered species are animal/species that are very likely to be extinct/gone.

another meaning: are in danger to be seriously in risk of being gone.

Answer:

An endangered species is a species that is in danger of extinction.

Endangered species occur when there is a loss in food supply, shelter, or another resource that they need to survive. Endangered species are at risk of extinction if not helped.

Hope this helps!!!

Explanation:

plz mark brainliest

Answer:

Negative reinforcement is a method that reinforces and assists in training a response or behavior by neglecting a negative impact or outcome in any situation. It helps remove any unpleasant or unpleasant stimulus.

Explanation:

In order for the negative reinforcement to work, whatever is removed must be removed immediately after the behavior. It works to serve as a reward for the performance of better behavior.  Negative reinforcement is of two types which are escape and avoidance learning. Escape learning is associated with the ability to escape an unnecessary stimulus, while avoidance learning is associated with the ability to completely prevent the experience of an unnecessary stimulus.

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B. 20 m/s east

This is the answer.

Answer:

The answer is 20m/s east or B

The sequence of events that may occur within the endomembrane system in the correct order are as follows:

1) Rough ER synthesizes protein.

2) Protein packaged into transport vesicle.

3) Golgi apparatus modifies, sorts, and packages protein into secretory vesicle.

4) Secretory vesicle fuses with the plasma membrane,

releasing the protein outside of the cell.The endomembrane system is a network of membranes that regulates protein synthesis, transport, and export. The process of synthesizing and exporting proteins involves a number of organelles, including the rough endoplasmic reticulum, the Golgi apparatus, and secretory vesicles. The sequence of events that may occur within the endomembrane system in the correct order is very important, and if any step is missed or not done in order, the protein may not be exported from the cell properly.

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Fossil evidence of bipedalism first appeared in the hominin lineage about 7 million years ago. So, option c is correct.

The earliest known hominin species that displayed clear bipedal characteristics is Sahelanthropus tchadensis, which lived in central Africa during the late Miocene epoch.

Fossils of Sahelanthropus, dating back approximately 7 million years, include a skull with a relatively small braincase positioned atop a vertically oriented spinal column, suggesting an upright posture.

Bipedalism is a defining feature of the hominin lineage, which includes modern humans and our extinct ancestors. Over time, other hominin species, such as Ardipithecus, Australopithecus, and eventually early members of the genus Homo, continued to exhibit adaptations for bipedal locomotion.

These adaptations include changes in the shape of the pelvis, spine, and lower limbs, which allowed for efficient walking and running on two legs.

It's worth noting that the exact timing and evolutionary pathways of bipedalism are still subjects of ongoing research and scientific debate, as new fossil discoveries continue to shed light on our understanding of human evolution.

So, option c is correct.

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