Which of these shows the levels of organization in the correct order from smallest to largest?
A. cells, organs, tissues, and organisms
B. cells, tissues, organs, and organ systems
C. cells, tissues, organisms, and organs
D. tissues, organs, cells, and organ systems

An ecosystem is a self supporting system in which there is a flow of materials and energy.

An ecosystem is a self supporting system in which there is a flow of materials and energy.

Let us now see the role of each organism in the small ecosystem.

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Answer:

Bird: consumer

Earthworm: decomposer

Flower: producer

Butterfly: consumer

Explanation:

Answer:

As I remember the answer is B)

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The movement of molecules of water is due to the energy possessed by the water molecules.

Upwelling refers to the rising of ocean water bringing nutrients up from the deep.

Other definitions are as follows:

Therefore, the movement of molecules of water is due to the energy possessed by the water molecules.

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The class of drugs for human immune deficiency virus infection which reduces how well HIV genetic material can be converted into human genetic material is called The Nucleoside Reverse Transcriptase inhibitors (NRTIs)

HIV also called human immunodeficiency virus is an infection that always attack the body immune system but majorly the white blood cells which is called the CD4 cells. The human immunodeficiency virus destroys these CD4 cells thereby causing a persons immune system to be weak and unable to fight other infections, leading to ill health.

The NRTIs also known as the Nucleoside Reverse Transcriptase inhibitors prevent viral replication, binding and interaction with the CD4+

in conclusion The class of drugs for human immune deficiency virus infection which reduces how well HIV genetic material can be converted into human genetic material is called The Nucleoside Reverse Transcriptase inhibitors (NRTIs)

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The hypothalamus communicates directly with pituitary gland.

Hypothalamus is a small part lied f the brain that is between the inferior and anterior of thalamus. This gland is linked up with the pituitary gland by the stalk-like infundibulum. The pituitary gland comprises of an anterior and posterior lobe and each love produce different hormones in response to signals from the hypothalamus.

posterior lobe contains the ends of nerve cells that is from hypothalamus. The hypothalamus transmitt the hormones directly to the posterior lobe via these nerves, and then the pituitary gland releases them.

Therefore, The hypothalamus communicates directly with pituitary gland.

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Hydrogen is used as an energy source as it is an efficient form of energy compared to the other sources, but it is expensive. Thus, option C is correct.

Hydrogen energy is the use of hydrogen gas in the production of energy that is more efficient than the other sources as it has a greater fuel conversion rate than petrol and diesel.

Ther hydrogen energy is also a disadvantage as it is expensive as it includes steam reforming and electrolysis which are costly processes and hence are not used globally.

Therefore, hydrogen energy is efficient but is an expensive method.

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Answer: it's C

Explanation: The dude above is correct

If a person who commits a crime leaves even the smallest speck of their blood, hair, or other organic matter, the DNA in this material can be amplified by PCR subjected to genetic analysis.

What is the use of PCR in crime scenes?

With PCR, crime scene investigators can extrade strains of DNA into quantities that may be recognized and connected to a suspect. Biologists can produce a couple of copies of character genes to look at gene function, evolution, and different topics.

PCR is a procedure wherein tens of thousands and thousands of copies of a particular collection of DNA may be made in a count number of just a few hours. This is crucial for forensic DNA samples because the DNA regularly located at crime scenes is constrained in each amount and quality.

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Answer:

because they were originally long period comets whose orbits were perturbed by the gravity of the giant planets and directed into the inner solarsystem

Halley's Comet is part of our solar system because it orbits around the Sun.

Halley's Comet is a periodic comet that follows a predictable orbit around the Sun and brings it close to the Earth once every 75-76 years. Halley's Comet originated from the Kuiper Belt, which is a region of the solar system containing icy objects.

When the comet approaches the Sun, the comet's ice and dust sublimate, which creates a bright coma that can be seen from Earth. The comet's nucleus is about 11 kilometers in diameter.

Halley's Comet is observed by humans for thousands of years. The regular return of comets allows scientists to study them in detail, thereby, helping us understand comets and the early solar system.

Therefore, Halley's Comet is part of our solar system because it orbits around the Sun like the other planets or objects in our solar system.

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Answer:The female who is individual number 1  is a carrier and has inherited a recessive allele for the genetic trait. Hence her genotype will be XNXn. Thus the correct answer is option B.

Explanation:

Answer:

Plants absorb nitrates in water through their roots. Nitrates are present in high levels in plant fertilisers. Without nitrates, the amount of chlorophyll in leaves reduces. ... This reduces the plant's ability to photosynthesise and grow properly, which reduces the farmers' crop yield .

If the us modifies techniques for timber management, it is expected that us forests will be able to meet long term timber needs

Forest management is the rational and environmentally appropriate use of forest resources. Management is an economic activity opposed to deforestation, as there is no total removal of the forest and even after use, the site will maintain its forest structure.

With this information, we can conclude that If the us modifies techniques for timber management, it is expected that us forests will be able to meet long term timber needs.

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Answer:

b

Explanation:

Answer:

No

Explanation:

Answer:

Even though there is no complete evidence there is a 50/50 chance of them being real. But at the moment they are an endangered speices

Explanation:

When Wolfbloods transform, the first visible sign is that the irises of their eyes turns from their regular eye colour, to a swirling black colour and then turns bright yellow. The veins in their hands and neck then start to become darker and reveal themselves. Every cell in their body changes, right down to their DNA and then, they become a wolf.

Construction of roads inside a forest has resulted in fragmentation of natural habitat.

This is the process of breaking down larger particles into smaller bits known as fragments.

When it happens to a large population of organisms there is a decreased the chance that an individual would find an unrelated mate.

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Answer:

a

Explanation:

Answer:

Hi! Here is the flow chart of the process of the protein synthesis, hope this helps! (Mark me as brainliest if the chart is accurate!) Have a great day :)

Answer:

Kidneys

Explanation:

The reason for this is because we digest and it goes through our kidneys

Answer: call me daddy

Explanation:

ill give you a honey bun

Answer:

Decomposers - Oranisms that decompose, or break down, dead or decaying organisms.

Tertiary Consumers - Organisms that obtain nutrients and energy by eating primary and secondary consumers. They are at the topmost level of the food chain.

Secondary Consumers - Organsims that prey on primary consumers for their food and energy.

Primary Consumers - Organisms that feed on primary producers, or plants for energy. They are herbivores, and make up the second trohpic level.

Producers - They are autotrophs, or organisms that produce their own food using light, or chemical energy. Plants are the main producers in many ecosystems. Others include algae, and bacteria.

Explanation:

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Answer:

Only those immunizations made from weakened (also called attenuated) live viruses — like the chickenpox (varicella) and measles-mumps-rubella (MMR) vaccines — could possibly make a child develop a mild form of the disease.

Answer:

can you reply with the answer choices?

A place cell is a neuron that responds most strongly when an animal is in a particular location in the environment.

These are types of neurons which fire when animals go to certain locations in the environment.

These type of cells are found in the hippocampus and is characterized by their peak activity.

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In the structure of a DNA, as the particular complementary base pairing of the DNA nucleotides, the diameter of a DNA molecule is the same over its length.

DNA stands for deoxyribonucleic acid, is the hereditary unit of an organism which is responsible for the production of characters.

The missing options in the question are:

In the structure of a DNA, as the particular complementary base pairing of the DNA nucleotides, the diameter of a DNA molecule is the same over its length.

Thus, this is the true statement regarding the structure of a double-stranded DNA molecule i.e., option C.

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Answer:

The ventricles of the heart have thicker muscular walls than the atria. This is because blood is pumped out of the heart at greater pressure from these chambers compared to the atria.

Explanation:

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Four (4) spermatids result from one spermatogonium. Details about spermatogenesis can be found below.

Spermatogenesis is the process by which sperm cells are produced from the testes of a male animal.

Spermatogenesis involves series of mitotic and meiotic divisions that finally result into the haploid sperm cells.

Spermatids are haploid cells produced by meiosis of a spermatocyte that develops into a spermatozoon.

The spermatogonium divides mitotically into primary spermatocyte which then develops into secondary spermatocyte via meiosis. Each secondary spermatocyte forms 4 spermatids.

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The tumors support their general proliferation by producing a growth element that they also respond to, this mechanism is called autocrine signalling.

Autocrine signaling means the display and secretion of an extracellular intermediate by a cell followed by the binding of that mediator to receptors on the same cell to start signal transduction.

A form of autocrine signaling is the secretion of IL-1 by macrophages.

Thus,  this mechanism is called autocrine signalling.

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Explanation:

Oxygen helps organisms grow, reproduce, and turn food into energy. Humans get the oxygen they need by breathing through their nose and mouth into their lungs. Oxygen gives our cells the ability to break down food in order to get the energy we need to survive.

Answer:

Allele frequency is how often an allele occurs in a gene pool

Explanation:

Allele frequency refers to how common an allele is in a population. It is determined by counting how many times the allele appears in the population then dividing by the total number of copies of the gene. The gene pool of a population consists of all the copies of all the genes in that population.