explain why soil micro-organisms should break down plant and animal residues​

The two conditions that must be met for a solar eclipse to occur are:

A solar eclipse is a celestial event that occurs when the Moon passes between the Sun and the Earth, blocking the Sun's rays and casting a shadow on a portion of the Earth's surface. During a total solar eclipse, the Moon completely covers the Sun, revealing the Sun's outer atmosphere, or corona, which is otherwise not visible.

During a solar eclipse, the Moon passes between the Sun and the Earth, blocking the Sun's rays from reaching a portion of the Earth's surface. This can only occur during a new moon, when the Moon is positioned between the Sun and Earth, and its shadow falls on the Earth's surface.

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Answer:cccccccccccccccccccccccc

Explanationccccc

the west coast

Explanation:

yeah it mostly likely that

Answer:

.02

Explanation:

When finding population density, divide the amount of people, animals or things in the region by the total square miles. 40/2000 is .02.

A population is the size of the group of individuals residing at a place. A population of 40 killer whales has a population density of 0.02.

Population density is the individual's concentration of a specific species at a particular geographical location. It allows the establishment of the ecosystem and health.

Given,

Number of individulas = 40

Size of the area = 2000

Density = Number of individuals ÷ Size of the area

= 40 ÷ 2000

= 0.02

Therefore, 0.02 is the population density of killer whales.

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Answer: What roses are the best flowers is a non-scientific question.

Explanation: What flower is better is determined by personal opinion. I might think the red roses are prettier and you might think the white ones are. Where all the other questions can be tested all equally and it is not an opinion.

Answer:

why are roses the best flowers

Answer:

A

Explanation:

Answer:

punnet squares show an estimated percentage

Explanation:

they determine the probability of an offspring having a particular genotype. u fill in the genotypes with the dominant and ressessive traits then u find the probalility of percentage. if it has moredominant traits as the percantage then it will be dominant if not it would be recessive

Answer:

Refer to the diagram to complete the sentence with the correct numbers.

When hydrogen shares electrons with oxygen, the outermost shell of the hydrogen atoms are full with 2

electrons and oxygen’s valence shell is full with 8

electrons. Because the valence shells of these atoms are full, the atoms are stable.

Explanation:

Edge 2021

According to the electronic configuration, when hydrogen shares electrons with oxygen , hydrogen atom has 2 electrons and oxygen atom has 8 electrons.

Electronic configuration is defined as the distribution of electrons which are present in an atom or molecule in atomic or molecular orbitals.It describes how each electron moves independently in an orbital.

Knowledge of electronic configuration is necessary for understanding the structure of periodic table.It helps in understanding the chemical properties of elements.

Elements undergo chemical reactions in order to achieve stability. Main group elements obey the octet rule in their electronic configuration while the transition elements follow the 18 electron rule. Noble elements have valence shell complete in ground state and hence are said to be stable.

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Answer:3rd option

Explanation: Trust

Answer:

During growth and development i.e, as you get bigger because the cells are multiplying in number.

During repair of worn out cells and tissues e.g if you get a cut.

(It also happens in your hair and skin, but, I wouldn't label these as "life events"

Hope this helps(:

2.1.2. The numbers and names of the places (regions) where Chlorophyll-containing cells occur are:

2.1.3. The mesophyll is the primary site of photosynthesis in plants. The mesophyll is a layer of cells that lies between the epidermis and the phloem. The mesophyll cells contain chlorophyll, which is the green pigment that captures sunlight and uses it to convert carbon dioxide and water into oxygen and glucose.

2.1.4. The mesophyll cells are structurally adapted for photosynthesis in several ways. First, the mesophyll cells are packed with chloroplasts, which contain chlorophyll. Second, the mesophyll cells have a large surface area, which allows them to absorb more sunlight. Third, the mesophyll cells have a thin layer of cytoplasm, which allows for the rapid diffusion of gases and nutrients.

2.1.5. Phloem

The phloem is a vascular tissue that transports food and nutrients throughout the plant. The phloem is made up of two types of cells: sieve tubes and companion cells. Sieve tubes are long, thin cells that are connected by small pores. Companion cells are smaller cells that are attached to sieve tubes. Companion cells help to provide energy and support for sieve tubes.

2.1.6. The components of the phloem tissue are:

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Answer:

depends on your grade

Explanation:

1.if u are a junior grader then a periscope will be great

2.for middle graders try making a vacuum cleaner with a plastic bottle

3.for high schoolers try something good and unique like a remote control car or u can also make one sonar just (a distance calculator of any object within 30cm of its reach) which i made in my high school science fair(for these projects learn arduino programming language)

or maybe try to think of something out of the box or ask other peoples

Answer:lakes and swamps

Explanation:any thing that is not man made

Examples of natural discharge areas for underground water are lakes and swamps. The correct option is b.

Groundwater is defined as any water that seeps underground. A riverbed where the water does not soak the soil sufficiently to appear above the surface of the riverbed is an example of this.

More rain would cause enough water to flow down the river to make it appear as a river or stream. The hydrosphere is the total amount of water that exists on the planet's surface. This includes water in any area on Earth, as well as the atmosphere and surface, the subterranean, and even the air.

Lakes and ponds are open-water ecosystems that exist beyond the boundaries of swamp or emergent vegetation.

Therefore, the correct option is b. Lakes and swamps.

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Primary succession happens when a pristine environment is exposed (lava flow). Pitcher plants are carnivorous plants that may survive in areas with little nitrogen in the soil.

The majority of pitcher plants catch animals using digestive fluid-filled traps in order to obtain these nutrients. Most plants get adequate nitrogen from the soil's nitrates. Carnivorous plants must obtain their nitrogen from the digestion of their food because nitrates are in short supply where they can flourish. Nepenthes plants are carnivorous and eat insects mostly for food. They accomplish this using specialised pitfall traps known as "pitchers," which draw in, capture, and devour insects.

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1. Four cardinal signs of inflammation are recognized

2. Erythrocytes arriving at the site and perfusing the dermis are visible through the skin, which produces redness.

3. The increase of blood flow to an area of injury or infection brings heat from the axial regions of the body

4. With increased blood flow and leakiness of capillaries fluids are delivered o the tissue faster than they are removed, resulting in swelling

5. Swelling increases the pressure of fluids on adjacent mechanical structures. This activates receptors for pain.

When an organism first comes into contact with a particular antigen it produces effector T cells and B cells activated cells that defend against pathogens. The production of these effector cells as a result of initial exposure is called the primary immune response. Passive immunity is short-lived but beneficial when the risk of infection is high and the body cannot mount its own immune response or synthesize its own antibodies.

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Answer: Wind speed is also important. The rate of erosion caused by a 30-mile-per-hour wind is more than three times that of a 20-mile-per-hour wind. Wind erosion decreases as soil moisture increases. For example, dry soil erodes about one-and-one-third times more than soil with barely enough moisture to keep plants alive.

Explanation:

https://www.agry.purdue.edu/soils_judging/new_manual/ch6-wind.html Hope this helps

Answer:

B. Form of active transport

The statement that is true about exocytosis is that it is a form of active transport. That is option B.

Exocytosis is a cellular process where by materials especially waste products of metabolism or ions are moved from inside the cell to the outside of it.

An active transport is a process where by cells use energy to transport molecules across the cellular membrane.

There are different forms of active transport include:

Phagocytosis is the process by which cells transport large material into the, therefore Option A is False.

Golgi apparatus helps in exocytosis therefore option C is false.

Exocytosis requires energy, there option D is false

From the different forms of exocytosis listed above, exocytosis is a form of active transport because it makes use of energy.

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The statement A person develops anti-A antibodies only after he is exposed to antigen A, and anti-B antibodies only he is exposed to antigen is true because the development of anti-A antibodies in a person occurs only after they are exposed to the A antigen.

These antibodies are produced by the immune system as a response to the presence of the A antigen. When a person with blood type B or O is exposed to the A antigen, their immune system recognizes it as foreign and mounts an immune response by producing anti-A antibodies. This immune response is specific to the A antigen and helps the body to defend against potential threats. It is important in blood typing and transfusion compatibility testing to prevent adverse reactions when incompatible blood types are mixed.

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The question is incomplete complete question is given below

A person develops anti-A antibodies only after he is exposed to antigen A, and anti-B antibodies only he is exposed to antigen.

A. TRUE

B. FALSE

Answer:

False

Explanation:

Because individuals in a population vary, some in the population are better able to survive and reproduce given a particular set of environmental conditions.

According to the theory of evolution, individuals does not evolve, a population evolves with time. Thus, the given statement is false.

Evolution is the process of any change or variation in all the forms of life over many generations, and evolutionary biology is the study of how the evolution of a species occur. Biological populations evolve through the help of genetic changes that correspond to the changes in the organisms' observable traits.

Darwin defined evolution as the descent with modification, where the main idea is that the species change over a period of time, give rise to a new species, and share a common ancestor. The mechanism which Darwin proposed for evolution is the natural selection.

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Operation Barbarossa went well in the start due to the geography of the area.

Geography is the study of the physical features of the Earth and its atmosphere, and of the human activities that occur on and around the planet. It is a holistic discipline that looks at the physical and human aspects of the world. It encompasses a variety of topics, such as the environment, climate, landforms, soils, vegetation, population, cultures, economies, and politics, and how they interact and affect one another. Geographers use a variety of tools, including maps, satellite imagery, aerial photography, and computer models, to study and understand our world.

Germany had the advantage of having one of the largest and most powerful armies in the world, as well as the element of surprise on their side. Furthermore, Germany had the advantage of attacking along a wide front, which meant that they could quickly overrun large amounts of Soviet territory. Additionally, the terrain of the area was relatively flat and open, which allowed German tanks and mechanized units to move quickly and easily across the landscape. Finally, the German army was well-equipped and organized, allowing them to capitalize on the advantages of the geography and make swift advances.

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energy and food.

mark me brainliestttt :))

Once bacteria have fixed nitrogen, it can be taken up by plants and animals, where it is used in the production of chlorophyll, amino acids, nucleic acids, and ATP.

Nitrogen serves several important functions in plants:

Hence, once nitrogen is taken up by plants and animals, it is utilized in the biosynthesis of important structural and functional molecules such as ATP, chlorophyll, nucleic, and amino acids.

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Answer: In fixation, the first stage of the Calvin cycle, light-independent reactions are initiated; CO2 is fixed from an inorganic to an organic molecule. In the second stage, ATP and NADPH are used to reduce 3-PGA into G3P; then ATP and NADPH are converted to ADP and NADP +, respectively.

The development of the brain and nervous system during infancy is a complex process that involves both nature and nurture. Nature refers to the genetic factors that influence the formation and functioning of the brain, while nurture refers to the environmental experiences that shape and stimulate brain development.

During infancy, the brain undergoes rapid growth and structural changes. Neural connections are formed and strengthened through a process called synaptic pruning, where unused connections are eliminated to optimize brain efficiency. This process is influenced by both genetic factors and environmental stimuli.Nurture plays a crucial role in brain development during infancy. Positive experiences such as responsive caregiving, nurturing interactions, and exposure to stimulating environments promote healthy brain development. On the other hand, negative experiences or lack of adequate stimulation can hinder brain development.The interaction between nature and nurture is dynamic and interdependent. Genetic factors provide the foundation for brain development, but environmental experiences shape the actual wiring of the brain. The brain's plasticity allows it to adapt and change based on experiences and environmental influences, highlighting the importance of providing a nurturing and enriched environment during infancy.

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Answer:

It is also important to remember that the seasons in South America are the reverse of that in the Northern Hemisphere, meaning that summer falls between December and February and winter between June and August.

The further north you are on the continent, the closer you are to the Equator (the country, of course, but also the Equator line). The temperature variations between the different months of the year are therefore smaller and smaller as you go up. In other words, each seasons of South America depends on its country.

The structure that gives rise to the seed is called ovule which is present within the ovary.

Seed is the non-developed embryo of the plants which is present in a dry and dormant state. It comprises of the food reserve which helps the seed grow right after germination. A small seed is capable of growing into a complete plant when provided the right environment.

Ovule is the female germ cell of the plants. It is responsible for giving rise to the female reproductive cells and after fertilization, the ovule becomes the seed. It is present inside the ovary which in turn is present inside the flower.

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The centromeres are where the spindle fibres connect to homologous chromosomal pairs. The chromosomes can move because the nuclear membrane has broken down.

The chromosomes are subsequently positioned along the cell's equatorial plane by the spindle fibres. Eukaryotic cells have spindle fibres, which are a part of the cytoskeleton as well as cilia and flagella. During mitosis and meiosis, chromosomes are moved by a spindle machinery to guarantee uniform chromosomal distribution amongst daughter cells.

The cell lengthens and elongates due to spindle fibres that are not attached to chromatids. The spindle fibres scatter during telophase as the chromosomes divide and move into separate new nuclei. Two daughter cells are created at the conclusion of mitosis and cytokinesis, each with the appropriate size of the chromosomes.

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A dark fur phenotype would be disadvantageous on a sandy beach and advantageous on a dark field.

Adaptation is a very important characteristic for any organism to survive and thrive in adverse conditions. This can be defined as some specific adjustments attained by organisms on the physical and physiological level that enhances their chances of survival.

The color of the fur is one such adaptation of animals that either diminishes their chance of survival or elevates it.

A dark fur phenotype would be disadvantageous on a sandy beach as it would make the animal more visible to predators.

It would be advantageous on a dark field, providing better camouflage from predators.

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Answer:echolocation i think

Explanation: