Distanta optima dintre ochi si carte în timpul cititului este circa 40cm?

Answer:

fossil record

Hope it helps

Plants absorb solar energy and convert it into chemical energy through photosynthesis, producing glucose and oxygen which are vital for plant growth and supporting life.

During photosynthesis, plants absorb solar energy from the sun and convert it into chemical energy. This process starts with the light-dependent reactions, where chlorophyll in the chloroplasts absorbs sunlight, energizing electrons that then move through an electron transport chain. This initial phase results in the production of ATP and NADPH. Following this, in the light-independent reactions, the stored chemical energy in ATP and NADPH is used to convert carbon dioxide into glucose.

Thus, solar energy is transformed into a more stable form, chemical energy, which is then utilized to build sugars, cellulose, and other materials essential for plant growth and development.

Photosynthesis converts absorbed solar energy into chemical energy stored in glucose. This process involves converting light energy to chemical energy via the light-dependent reactions and using it in the Calvin cycle to produce sugars.

During photosynthesis, plants absorb solar energy from the sun and use it to convert carbon dioxide and water into glucose and oxygen. This process takes the radiant energy in sunlight and transforms it into stored chemical energy within the chemical bonds of glucose. The Light Reactions of photosynthesis involve the pigment chlorophyll absorbing sunlight energy, which then gets converted into chemical energy stored in molecules of ATP and NADPH.

This chemical energy is later used in the light-independent reactions, also known as the Calvin cycle, to drive the synthesis of sugar molecules from carbon dioxide. Thus, the solar energy is converted into a form that can be stored and used by the plant to maintain its processes and grow. Additionally, this conversion facilitates the flow of energy through ecosystems, as plants serve as a primary energy source for other organisms through the food chain.

Answer: The answer would be A

Explanation: It would be A because it all looks the same, and it's all mixed evenly. A homogeneous mixture is something that IS mixed evenly, whereas a heterogeneous mixture is something that is NOT mixed evenly.

And I have absolutely no idea what colloids and solutes are:)

D. A daughter will not be color blind because the father is not a carrier of the recessive allele.

Answer:

d

Explanation:ez took it

Folding is responsible for compressing successive strata in the earth. Therefore, option (D) is correct.

The process of folding happens when tectonic processes put stress on a rock, but the rock does not break as a result of the stress. As the exposed faces of the folded rocks are worn away by erosion, this can result in a wide variety of landforms. Folds that resemble an arch are called anticlines, and folds that resemble the letter 'U' are called synclines.

This takes place deep within the earth, where the rocks are subjected to intense pressure and the temperature is much higher. Rocks that have been folded frequently occur in mountain ranges such as the Himalayas, the Alps, and the Scottish Highlands.

Therefore, option (D) is correct.

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Answer:

B

Explanation:

Plant cells use Glyceraldehyde-3-phosphate (G3P) to form various organic compounds. Following the Calvin cycle, for every three "turns," enough net carbon is fixed to export one G3P out of six produced. This single G3P then contributes to the synthesis of carbohydrates and other compounds required by the plant.

In the process of photosynthesis, plant cells employ the Calvin cycle to fix carbon into a useful form. G3P, a three-carbon molecule, is a vital intermediate in this cycle. For every three complete cycles, six molecules of G3P are produced. Only one of these molecules is exported into the cytoplasm to synthesize other organic compounds, like carbohydrates. The remaining five G3P molecules are utilized to regenerate RuBP with the consumption of additional ATP, thus preparing the Calvin cycle to fix more atmospheric CO2. The exported G3P is central to producing glucose, which is further used for energy storage, cellulose for cell walls, and other fundamental organic compounds crucial to plant growth and development.

Answer: the answer is true

Explanation:

Because duck-billed dinosaurs could not have survived without plants, their presence in Antarctica proves that plants existed there. Additionally, fossil plants have been found in Antarctica.

The right answer is C, The water solution in the environment surrounding the cell has a higher solute concentration than the cell.

Plasmolysis (the phenomena of shriveling cell) is a cellular state of the plant cell where, following loss of water, the membrane is detached from the pectocellulose wall. This is the opposite state of turgescence.

Plasmolysis occurs when a stream of water comes out of the vacuole and the plant cell through osmosis. The resulting decrease in pressure causes shrivelling of the soft parts of the plant (stems, leaves, petals), which are no longer supported by the turgor pressure.

This flow of water is created either by the lack of water in the external environment, or by the presence in this medium of a liquid more concentrated than the cellular medium. In these situations, there is a displacement of water by osmosis from the cell medium to the external medium.

Thus, the cells of a plant subjected to a drought or a water too concentrated in salts will lose their water and will be in plasmolysis. The soft parts will then shrivel up and the plant will die of water stress if the situation does not allow it to quickly reabsorb water.

The correct answer for fill in the blanks is Balanced.

Tight rope walker does not want to change his position to make sure that   the force acting on him is balanced. A slight change in the position of the  rope walker will make the rope move and this movement will result in the unbalance the force exerted on the walker. So, to make the force balance he will not change his position.

Environmental factors, also known as eco factors, are the physical, chemical, and biological conditions that affect living organisms and their surrounding environment.

These factors include things like temperature, humidity, air quality, water quality, soil quality, availability of food and resources, and the presence of other organisms in the ecosystem.

They play a critical role in shaping the behavior and survival of living organisms.

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Answer:

B. A group is separated from the rest of the species.

Explanation:

Just took test

One of the main ways through which a new species is formed may include a group being separated from the rest of the species. Thus, the correct option for this question is B.

Species may be defined as the collection of organisms that can significantly reproduce with one another in nature in order to produce fertile offspring.

The process of speciation occurs when a particular species is separated from other members of the same species over a long period of time due to geographical barriers or others restrictions. The process of speciation may be divided into four categories, i.e. allopatric, sympatric, parapatric, and peripatric.

Therefore, one of the main ways through which a new species is formed may include a group being separated from the rest of the species. Thus, the correct option for this question is B.

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Answer:

Excessive intake of vitamin hurts human body in  several ways

Explanation:

Excessive intake of vitamin hurts human body in  several ways. Some of the common harms caused are as follows -

a) Fat-soluble vitamins such as vitamins A, D, E and K  if taken in excess cause building of toxic elements in the liver, brain and heart as they being insoluble in water are stored in body fat tissues.

b)  Intake of Vitamin C - Excess of vitamin C causes problems such as cramps in stomach, nausea , diarrhea

c) Zinc & selenium intake causes harm to the nerves, hairs , gastrointestine etc.

Answer:

Explanation:

Exfoliation is the peeling away of sheets of rock millimeters to meters in thickness from a rock's surface due a range of physical and chemical processes during exhumation and weathering.It can occur due to several processes.