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xeze [42]
3 years ago
6

Energy in most ecosystems must flow through autotrophs because ___

Biology
1 answer:
sergiy2304 [10]3 years ago
4 0
It is supposed to flow through so heterotrophs(like humans etc) can gain energy from plants(autotrophs) which other animals gain energy from them eating each other which follows the food chain. Which keeps the food chain and life in order, by giving energy for work and life to sustain.
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What is Islets of Langerhans?<br>:')​
Lyrx [107]

The islets of Langerhans are microorgans located in the pancreas.

<h3>The islets of Langerhans </h3>

The islets are formed by polygonal or rounded cells, arranged in cords, around which there is an abundant network of blood capillaries with fenestrated endothelial cells.

<h3>Types of islets of Langerhans</h3>
  1. Alpha (A) cells: secrete glucagon. In humans, these cells have regular-shaped granules containing a dense center surrounded by a clear region under the membrane.
  2. Beta (B) cells: secrete insulin and amylin. B cells have irregular granules with a center formed of irregular crystals of insulin complexed with zinc.
  3. Delta cells (D): synthesize somatostatin.
  4. PP (F) cells: contain a pancreatic polypeptide.

With this information, we can conclude that the islets of Langerhans are microorgans that constitute a large production of products for the maintenance of life.

Learn more about Islets of Langerhans  in brainly.com/question/4609464

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3 years ago
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What two features are most often associated with the formation of springs
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7 0
3 years ago
How do the plant cells placed in a medium for tissue culture change in terms of their degree of specialized?
Alinara [238K]
<span>A higher developed organism will have a higher degree of specialization.</span>
7 0
3 years ago
Match the characteristics with the phylum. Tongue-shaped structure called radula for grasping food spongin fibers or spicules fo
svet-max [94.6K]

Answer:

  • A Tongue-shaped structure called radula for grasping food --> Mollusca
  • Fleshy lobe-like structure called parapodia --> Annelida
  • Spongin fibers or spicules for support ---> Porifera

Explanation:

Radula: This is an organ used in feeding by mollusks. It constitutes a highly developed feeding organ. The radula has is conformed of small teeth-like structures located in rows. Lateral teeth vary in shape and size. The movements of the radula during feeding are complexes acting as a scratcher on the surface to get the food.

Parapodia: These are characteristic lateral appendixes that emerge and extend from each of the body segments of invertebrates such as polychaetes. The typical parapodium is a fleshy prolongation more or less laterally comprised and is composed of a superior branch (notopodium) and an inferior branch (parapodium).  

Spicules: Sponges (Poriferous) skeleton is composed of calcium carbonate and siliceous micro-structures called spicules. Their morphology is so varied that it is used in taxonomy for identification and classification.  

There are different kinds of spicules:  

- Monoaxonic spicule: needle-shaped, straights or curves

- Tetraxonic spicules: they have four prolongations  

- Triaxonic or Hexaxonic spicules

- Poliaxonic spicules  

Two terms can be applied to any of these spicules kinds:

- Megaspicules: They are elongated and compose the main architecture of the sponge skeleton

- Microspicules: Variable in shape and size, with ancillary functions

Sponges have few predators because of the spicule structures and their high toxicity. Many of them are capable of perforating soft tissues and producing urticant substances.

6 0
3 years ago
The study of nutrient cycling though the environment is an example of which of the following?
Oliga [24]

Answer:

ecosystem ecology

Explanation:

The ecosystem is the basic unit for supporting life, but an ecosystem goes beyond organisms living in one place. Life depends on the recycling of resources between organisms and the environment in which they live, between organic and inorganic forms. Ecosystem ecology studies these transformations and integrates into both terrestrial and aquatic ecosystems, attracting fields as diverse as atmospheric chemistry, hydrology, soil science, physiology, and ecology.

For this reason, The study of nutrient cycling through the environment is an example of subjects that are studied in ecosystem ecology.

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3 years ago
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