Explanation:
Communities in a primary succession include
-barren rock
-bacteria and fungi
-mosses and lichen
Further Explanation:
Ecological communities are highly dynamic- they gradually evolve. Typically their progression involves:
- colonizing species exploiting uninhabited areas (Primary succession)
- becoming a habitable and increasingly complex community
- there is increased diversity of organisms (Secondary)
The makeup of biological communities is crucial to defining Primary and Secondary succession; eventually, through changes in this makeup, a steady-state or equilibrium is reached called a climax community. While Primary succession starts off with the modification of a previously unoccupied area along with increasing variation; secondary succession begins after major disruption in the community such as fires, storms and flooding.
However, the process of becoming a climax community can be pretty complicated- it is very dependent on other factors like temperature and rainfall. Communities that experience rapid change, frequent major disruptions and even human intervention, are less likely to attain a stable equilibrium and may never become climax communities.
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Answer:
Sarcomere
Explanation:
The sarcomere is the smallest contractile unit of muscle. It extends from one Z disc to the next and therefore, is the region between two consecutive Z discs. It contains an A band flanked by half an I band at each end. Contraction of a muscle fiber occurs as the sarcomeres within the myofibrils shorten. During the shortening of the sarcomere, the thin actin filaments slide past the thick myosin filaments and approach one another. The resultant shortening of the I band and complete disappearance of H zone cause contraction of muscle fiber.
Explanation:
Seismology is the study of seismic waves, energy waves caused by rock suddenly breaking apart within the Earth or the slipping of tectonic plates
Answer:
These symptoms are evidence of decomposition of infected red blood cells
Explanation:
Malaria is an infection of red blood cells caused by one of five species of Plasmodium, a protozoan. Malaria causes fever, chills, sweating, enlarged spleen and anemia (due to decomposition of infected red blood cells). It is an acute febrile infectious disease caused by protozoa transmitted by the infected female Anopheles mosquito. Everyone can get malaria. Individuals who have had multiple episodes of malaria may achieve a state of partial immunity, showing little or no symptoms in case of a new infection.
When infected red blood cells rupture and release parasites, the person usually shows shivering chills, followed by a fever that can reach 41 ° C. Tiredness, discomfort, headache, body aches and nausea are common. The fever usually subsides within a few hours, and then profuse sweating and extreme tiredness occur. Fevers occur unpredictably at first, but over time they become periodic. Periodic fevers come and go at regular intervals. Fevers tend to occur at 48 hour intervals with Plasmodium vivax and Plasmodium ovale and 72 hours with Plasmodium malariae. Fevers caused by Plasmodium falciparum are not usually periodic, but sometimes occur at 48 hour intervals. As the infection progresses, the spleen increases and anemia becomes severe. Jaundice may arise.
Both Gap junctions and plasmodesmata enable direct material transfer across cells.
<h3>What is Gap junction?</h3>
- Specialized intercellular connections known as gap junctions connect a variety of animal cell types.
- They connect cytoplasms of two cells directly, allowing different chemicals, ions, and electrical impulses to travel through a controlled gate between cells.
<h3>What is plasmodesmata?</h3>
- When it comes to intercellular trafficking, communication, and signaling for plant development and defense.
- Plastodesmata—intercellular pores that connect adjacent plant cells and permit membrane for cytoplasmic continuity is crucial.
- Plasmodesmata allow molecules, from tiny photosynthetic products to big proteins and mRNA, to flow more easily between cells.
- Plasmodesmata is essential for the transport of nutrients via vascular tissue.
- They are also essential during development since plant cells do not migrate like animal cells do.
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