List 3-5 things about biodiversity.

Answer:

When you manually crank the flashlight, a coil of wire inside the generator converts the mechanical energy into electrical energy. This allows an electrical current to flow through the flashlight, thus lighting the bulb of the flashlight.

Answer:

It's called thermal energy. The energy that comes from the temperature of the heated essence is called thermal energy.

Explanation:

:) Hope this answer helped.

Answer:

Secretion

Explanation:

Not completely sure tho, good luck

Answer: 30, top, plane in the air, full

Explanation: more weight gives more potential

To prevent overturning about Point A and retain the water in the reservoir, the necessary thickness (t) of the concrete wall base can be determined. The analysis involves considering the forces acting on the wall and ensuring the equilibrium of these forces.

The weight of the water above the wall exerts a downward force, while the pressure exerted by the water against the wall contributes an upward force. By applying the principles of statics and considering the material densities and the K value, the required thickness of the wall base can be calculated.

The density of water, concrete, and earth, along with the K value, provide essential parameters for the calculations. By accurately evaluating the forces and pressures involved, the appropriate thickness of the wall base can be determined to ensure the stability and containment of the water in the reservoir.

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Answer:

skin cancer

Explanation:

because a human skin system is not evolved to handle the harsh conditions invoked by ultraviolet rays

Answer:

paleoclimatologists use different sources of information from fossils in order to record past climate and environmental conditions (for example, tree rings or skeletons of coral reefs)

Explanation:

Paleoclimatology is the discipline that studies ancient climate and environmental conditions. Paleoclimatologists are researchers that analyze different sources of evidence to obtain accurate records of past climate conditions. In this regard, the fossil record has proven to be a useful tool to obtain such information. For example, the rings of fossilized trees are usually wider during warm and wet years, while these rings become thinner during cold and dry years. Moreover, geochemical records from the skeletons of fossil corals (composed of calcium carbonate) are good indicators of past climate conditions because coral growth is sensitive to small fluctuations in water temperature. Paleoclimatologists also use non-biological climate indicators (e.g., sediments and ice sheets) to reconstruct past climate and environmental conditions.

Answer:

A few of the positive particles aimed at a gold foil seemed to bounce back.

Explanation:

Some of the positive particles aimed at a gold foil seemed to bounce back which gives information to the scientists that some heavy particles present in the center of the atom which bounce back the positive particles. so from this evidence the scientists says that atom is divisible and having subatomic particles such as proton, electron and neutron. Proton and neutron is present in the center whereas electron is revolving around the nucleus of an atom.

Answer:

I don't have an exact answer.

Explanation:

Anyone who bothers to use the answer above me, DON'T! It's an inncorrect answer. I lost my 100% in my class for that answer alone so it is either                    (A.                                                                                                                                      (C.                                                                                                                                    (D.

Answer:

The water will flow from the inside of the cell to the fluid outside the cell. This means that the solution would be hypertonic.

It will happen to the tubes that have a higher concentration of solutes in the fluid outside cells than inside the cells.      

Explanation:

When a cell is in a hypotonic solution, it means that the concentration of solute in the solution is higher than the one in the cell. As a natural reaction, the cell tries to balance this difference. To do this, the water that is inside the cell flows to the outside. As a result, the concentration between the inside and the outside of the cell becomes equal or more equitable. Besides, the cell shrinks due to the loss of water.

Metapopulation is defined as a group of geographically distributed subpopulations, connected by intermittent migration and dispersion. They are characterized by migration, local extinction, and recolonization.

The factors that characterize metapopulations include the following:

The size of the subpopulations: The size of each subpopulation can be different. They can range from a few individuals to thousands.

The connectivity of the subpopulations: The subpopulations in a metapopulation can be connected by dispersal or migration.

The dynamics of local extinction: In metapopulations, the extinction of a local subpopulation can occur due to various environmental factors. This factor creates a vacant patch that can be recolonized by the dispersing individuals.

The dynamics of colonization: The colonization of vacant patches can occur by individuals from a neighboring subpopulation through migration, and this is a dynamic that characterizes metapopulations.

The conditions that need to be satisfied for metapopulations to persist are:

The subpopulations in a metapopulation must remain connected through the migration of individuals, and the rate of immigration must be greater than the rate of local extinction.

The extinction of a local subpopulation must not occur too frequently because it can lead to the extinction of the entire metapopulation if the rate of extinction is too high.

The size of each subpopulation must be large enough to avoid the effects of genetic drift and other factors that can increase the rate of extinction of a subpopulation.

Overall, metapopulation persistence requires the maintenance of a balance between the rate of extinction and recolonization. In addition, the size and connectivity of subpopulations must be carefully maintained to ensure the persistence of the metapopulation.

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The classification of neurons that communicate tactile, auditory, and visual information is called sensory neurons.

Sensory neurons are classified into three categories: unipolar, bipolar, and multipolar.

• Sensory neurons are specialized cells that transmit information from sensory organs and tissues to the central nervous system (CNS)

• They can receive input from stimuli that originate outside the body, such as light, sound, temperature, and touch.

• Sensory neurons are responsible for providing the CNS with information about the environment and helping us perceive the world around us.

• The information they transmit can be conscious or unconscious, depending on the type of stimulus and the individual's awareness of it

In conclusion, the classification of neurons that communicates tactile, auditory, and visual information is sensory neurons. Sensory neurons are specialized cells that transmit information from sensory organs and tissues to the central nervous system (CNS).

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Sensory neurons are the classification of neurons that communicate tactile, auditory, and visual information. It is option C.

The classification of neurons that communicates tactile, auditory, and visual information is sensory neurons. Sensory neurons are responsible for transmitting information from sensory organs to the central nervous system. They receive input from the environment and convert it into electrical signals that can be interpreted by the brain. sensory neurons are specific to send material, hear-able, and visual data from the body's tactile organs to the focal sensory system.

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Answer:

SIMILARITIES:

1. They are both made up of cells.

2. Both cells are eukaryotic

DIFFERENCES:

1. Leaf cell possess chloroplast while arm cells don't.

2. Leaf cells have a cell wall while arm cells do not.

Explanation:

According to this question, a comparison is being made between the plant's leaf and a human arm. A leaf belongs to a plant while the arm belongs to a human cell. They are similar and different in the following ways:

SIMILARITIES:

- Both of these organisms are said to be living and every living things is said to be made up of cells. Hence, both leaf and human cells are made up of CELLS.

- Both the leaf and arm cells have a membrane-bound nucleus, hence, they are said to be EUKARYOTIC CELLS.

DIFFERENCES:

- Since the leaf cells belong to that of a plant, they contain CHLOROPLAST organelle with which they perform photosynthesis. The cells of the human arm lacks this organelle.

- Likewise, the cells of a leaf possess CELL WALL in addition to their cell membrane while the arm cells lack cell wall.

The ways in which a biome is from the equator is if it is characterized by a warmer and wetter climate.

This is referred to as the weather conditions of an area in general over a long period of time and it is dependent on various types of factors.

Biome which are from the equator are warmer and wetter because the moisture content of warmer air is greater than that of cooler air. They form the world's tropical forests in which regions such as Central and South America possess half of it thereby making it the correct choice.

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True. Agglutination tests involve the clumping of insoluble antigens, which are typically found on the surface of cells or particles. These tests work by mixing the antigens with antibodies that recognize and bind to them, causing them to clump together and form visible aggregates.

In contrast, precipitation tests involve the formation of a visible complex between a soluble antigen and its corresponding antibody. The complex can then be visualized as a visible precipitate. Precipitation tests are typically used to detect soluble antigens in fluids such as blood serum or urine. Both agglutination and precipitation tests are commonly used in diagnostic and research settings to detect and identify specific antigens or antibodies.

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The broad name for a cell that is part of the nervous system, but does not carry nervous impulses is known as nervous system stromal cell.

The nervous system is a complex system that is responsible for sending, receiving, and interpreting sensory information from various parts of the body. It includes the brain, spinal cord, and a network of nerves that run throughout the body.

The nervous system is divided into two main parts: the central nervous system (CNS) and the peripheral nervous system (PNS). Nervous system stromal cells are a group of cells that provide support to the nervous system. They do not transmit nerve impulses, but rather they play a critical role in maintaining the structure and function of the nervous system.

These cells are found in both the CNS and the PNS and are involved in a variety of important processes, including:Providing structural support to Neurons Regulating the growth and development of nerve Cells Producing myelin, which is a substance that insulates nerve fibers and helps to speed up nerve Impulses Removing waste products from the nervous System Regulating the levels of various neurotransmitters in the Brain Nervous system stromal cells are a diverse group of cells that includes astrocytes, oligodendrocyte s, and Schwann cells.

Each of these cell types performs a specific set of functions, but all are critical to the proper functioning of the nervous system.

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It is true that an osteon contains osteocytes, lamellae, and a central canal, and is found in compact bone only.

Compact bone is made up of closely packed osteons, also known as haversian systems. The osteon is made up of a central canal named the osteonic (haversian) canal that is guarded by concentric rings of matrix (lamellae). The bone cells (osteocytes) have been located in called lacunae between the matrix rings.

To provide passageways thru the hard matrix, small channels (canaliculi) radiate from either the lacunae to a osteonic (haversian) canal. The haversian systems in compact bone are packed tightly together just to form what appears to be solid mass. Blood vessels run parallel to the length of the bone in the osteonic canals. These blood vessels communicate with vessels on the bone's surface via perforating canals.

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Answer:

Artifical selection would be much quicker because you can breed specific butterflies to get your desired result. Natural selection may produce undesirable results, this is because you cannot choose which butterflies to breed. So you may end up with other coloured butterflies instead.

The body's lines of defense include the First line of defense such as   skin, the Second line of defense such as phagocytes and natural killer cells and the Third line of defense such as T cells and B cells.

The body's lines of defense can be broadly classified into three categories:

1. Cilia in the respiratory system trap pathogens is the First line of defense

2. Interferon stops viruses from reproducing is a Chemical defense

3. The immune system is made up of cells that identify and kill pathogens is a Second line of defense

4. Phagocytes surround pathogens and destroy them is a Second line of defense

5. Substances in sweat slow or kill bacteria is the First line of defense

6. The body produces antibodies is a Second line of defense

7. Hairs in the nose filter air is the First line of defense

8. Leucocytes kill pathogens at the site of an infection is a Second line of defense

9. Mucus contains substances that kill pathogens is the First line of defense

10. Antibodies connect to antigens are the Second line of defense

Part B:

Passive natural immunity: 4 (Developing baby receives antibodies from its mother), 7 (Injection of antibodies)

Active natural immunity: 5 (Immunity you are born with)

Passively acquired immunity: 1 (Injection of a serum)

Active acquired immunity: 2 (Exposure to a disease), 3 (Injection of vaccine), 8 (Injection of a weakened virus)

Innate immunity: 9 (Body's inborn defense)

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Complete question:

Part A: Read each of the statements about the body's defenses. In the spaces provided, write which of the body's lines of defense is involved. Use first line of defense, second line of defense, or chemical defense.

1. Cilia in the respiratory system trap pathogens.

2. Interferon stops viruses from reproducing.

3. The immune system is made up of cells that identify and kill pathogens.

4. Phagocytes surround pathogens and destroy them.

5. Substances in sweat slow or kill bacteria.

6. The body produces antibodies.

7. Hairs in the nose filter air.

8. Leucocytes kill pathogens at the site of an infection.

9. Mucus contains substances that kill pathogens.

10. Antibodies connect to antigens.

Part B: Study the descriptions in Table 1. Classify each type of immunity described by placing a check mark in the correct column.

Table 1 Immunity

Description

Natural Immunity

Acquired Immunity

Passive

Active

1. Injection of a serum

2. Exposure to a disease

3. Injection of vaccine

4. Developing baby receives antibodies from its mother

5. Immunity you are born with

6. Only temporary

7. Injection of antibodies

8. Injection of a weakened virus

9. Body's inborn defense

Answer:

Major structural differences between a plant and an animal cell include: Plant cells have a cell wall, but animal cells do not. Cell walls provide support and give shape to plants. Plant cells have chloroplasts, but animal cells do not.

Explanation:

Hope that helps :)

Answer:

A plant cell contains a singular vacuole In contrast, animal cells have many smaller vacuoles.

Explanation:

Plant cells have a cell wall, as well as a cell membrane. Animal cells have a cell membrane, but no cell wall.

Porifera is the phylum that contains organisms without tissues. Sponge-like organisms are called porifera and are multicellular but lack genuine tissues and organs.

The phylum Porifera contains creatures referred to as sponges. The aforementioned animal (sponges) has numerous channels and pores on its body. They contain cells that are not specialised in the formation of tissues or organs. As a result, they are tissue-free.

Because their bodies don't have organ systems or even tissues, sponges are regarded as one of the most basic organisms.

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Answer:

25 %

Explanation:

you have to add 75 + 25 = 100, which is the total

Mitochondria are organelles within eukaryotic cells which are believed to have originated from bacteria that entered primitive eukaryotic cells in a symbiotic relationship. According to the hypothesis, these bacteria were able to carry out aerobic respiration, a function the primitive eukaryotic cells could not. This is because the mitochondria provide the cell with a more efficient way of generating energy, as aerobic respiration uses oxygen to break down food molecules and produce ATP, which is used for energy.

The establishment of the symbiotic relationship between bacteria and eukaryotic cells was beneficial to both, as the bacteria were able to survive in the cell and the primitive eukaryotic cells were able to receive the ATP they could not produce. As the relationship progressed, the bacteria became the mitochondria, and over time, the mitochondria were integrated further into the cells, leading to a more efficient cell structure.

Additionally, mitochondria also provide the cell with an important by-product of aerobic respiration, NADH, which is an essential molecule used in cellular metabolism.

In summary, the bacteria that entered the primitive eukaryotic cells were able to carry out the function of aerobic respiration, which the primitive eukaryotic cells could not, as well as providing the cell with NADH, an important molecule used in cellular metabolism. This symbiotic relationship eventually led to the evolution of the mitochondria, which is now an essential organelle in eukaryotic cells.

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Answer:

A

Explanation:

bacteria does respiration using dissolved oxygen in water, therefore concentration of dissolved oxygen present in water is reduced making fish unable to perform respiration hence they will die.

A hereditary disorder, also known as a genetic disorder or genetic disease, is a condition that is caused by abnormalities or mutations in genes inherited from parents.

The down syndrome involves the presence of an additional copy of genes located on chromosome 21 rather than specific mutations in individual genes.

In Fragile X syndrome, the FMR1 gene on the X chromosome undergoes an expansion of CGG repeats, which leads to the inactivation or reduced production of the FMR1 protein. This mutation affects protein synthesis and neuronal development, resulting in the cognitive impairments and developmental delays observed in Fragile X syndrome. Please note that the specific names for Gene 2 and Gene 3 are not applicable in this context since Fragile X syndrome primarily involves the mutation in the FMR1 gene.

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Answer:

you do not deserve an answer

Explanation:

you are bad

Answer: The sky is blue due to a phenomenon called Raleigh scattering.

Explanation:

Answer: Raleigh scattering is the scattering of electromagnetic radiation by particles with smaller wavelengths. Shorter wavelenght waves are blue-hue.

Explanation:

Answer:

As an example, you are interested in how stress affects heart rate in humans. Your independent variable would be the stress and the dependent variable would be the heart rate. You can directly manipulate stress levels in your human subjects and measure how those stress levels change heart rate.

Explanation:

Answer: Gels for DNA separation are often made out of a polysaccharide called agarose, which comes as dry, powdered flakes. Before the DNA samples are added, the gel must be placed in a gel box. One end of the box is hooked to a positive electrode, while the other end is hooked to a negative electrode.

Explanation: