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Ira Lisetskai [31]
3 years ago
9

Robert hooke coined the term cell when studying thin slices of cork. These ________ were the first cells observed because ______

__.
Biology
1 answer:
Brrunno [24]3 years ago
4 0

Robert hooke coined the term cell when studying thin slices of cork. these Dead

Plant Cells were the first cells observed because the thick cells.

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Which one of the following statements concerning soil erosion is not true?
Umnica [9.8K]

Answer:

(a)-Rills, and arroyos or gullies develop mainly during prolonged droughts.

Explanation:

Soil erosion is the process of erosion, transport and sedimentation of soil, subsoils and rocks as an effect of the action of erosive agents such as water, winds and living things. The process of disintegration of rock particles (called sediments) is caused by the action of weathering (a set of chemical, physical and biological processes that cause soil and rock wear).

About soil erosion, we can confirm that the following information is true:

  • Grasses and other vegetation, windbreaks, and contour cropping will help reduce soil loss from cultivated lands.
  • Soils form naturally by weathering; if protected from erosion, sound management can maintain or enhance their nutrient levels and textural characteristics.
7 0
3 years ago
Outline three examples of cycles of inorganic nutrients. For each, outline the uses of the nutrients in living organisms, its me
Serggg [28]

The three examples of cycles of inorganic nutrients are Nitrogen, carbon and sulphur cycle.

Nitrogen is required to make amino acids and DNA in organisms. Carbon is the main component of glucose through which organism make energy, about 18 per-cent of the human body comprises carbon. Sulphur is an important constituent of some proteins, amino acids and enzyme cofactors.

Explanation:

The biogeochemical cycles like the nitrogen cycle are responsible for converting nitrogen into many chemical forms as nitrates, nitrites, ammonia. This process involves degrade decomposing animal and plant matter and naturally cleaning the environment also nitrites and nitrates become biofertilizers. The plants take nitrogen through their roots and in turn primary consumer in food chain ie. organisms consume the plant and eventually releases nitrogen as a waste material, dead and decaying body to the soil and cycle goes on.

In the carbon cycle the carbon is exchanged from the atmosphere to the organisms and then again to the environment. Plants perform photosynthesis by using carbon dioxide, primary consumer eats it and gets nutrition to perform cellular respiration, in turn, gets energy which gets dissipated and stored as biomass eventually in the course consumer die and replenish the soil with carbon. The Carbon emitted will keep cycling through air, water and soil.

The sulphur cycle involves the movement of sulphur between rocks, water and living beings and plants. Plants ( producers) absorb sulphur dissolved in water and animal consume these plants to replenish their sulphur requirement. And when organism die, sulphur enter the cycle again.

There will be a transfer of these inorganic nutrients to the trophic level in food chain.

3 0
3 years ago
This diagram shows to glucose monomers being linked up for maltose sugar. The process that link the two together is
vampirchik [111]
We just learned this ! it's hydrolysis
4 0
2 years ago
The two primary muscles used for breathing are the diaphragm and​ the:
denis23 [38]
Intercostal Muscles

The muscles of respiration are muscles that contribute to exhalation and inhalation by causing the contraction and expansion of the thoracic cavity. However, diaphragm is the main muscle of breathing while intercostal muscles is one of the most important muscles for respiration. Intercostal muscles function by manipulating the width of the rib cage and they are attached between the ribs.


6 0
3 years ago
The evolution of eukaryotic cells most likely involved _____.
Sergeeva-Olga [200]
Absorbing prokaryotic cells. This theory is called the endosymbiotic theory.
The early prokaryotic cells that were absorbed likely evolved into mitochondria and chloroplasts, membrane-bound organelles with their own DNA in single chromosomes and their own ribosomes.
7 0
3 years ago
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