A sarcomere is the basic contractile unit of muscle fiber. Each sarcomere is composed of two main protein filaments—actin and myosin—which are the active structures responsible for muscular contraction. The most popular model that describes muscular contraction is called the sliding filament theory.
<span>A terminal node is the hypothetical last common ancestral interbreeding population of the taxon labeled at a tip of the cladogram. An internal node is the hypothetical last common ancestral population that speciated (i.e., split) to give rise to two or more daughter taxa, which are thus sister taxon to each other</span>
The Himalayan region is located at a height of more than 3300m above sea level. Similar to Terai, the hilly region's altitude spans from 600 to 3300 meters above sea level. In Terai, it is hot, whereas the Himalayas are frigid. In the Hilly region, the temperature is moderate and neither hot nor cold.
<h3>How the Himalayan differ from the Terai region ?</h3>
Due to differences in geographical makeup and height, the mountainous, hilly, and Terai regions differ from one another. Mountains are found in high elevation.
- Bengal tigers are most numerous in the Himalayan grasslands, where they coexist with Asian elephants and one-horned rhinos. Red pandas, golden langurs, and takins can find refuge in the highlands. Bengal tigers and snow leopards are only known to coexist here in the globe.
- Rhododendrons are found all throughout the world, although they are more prevalent in the wetter regions of the eastern Himalayas, where they can grow as tall trees or short shrubs. In the alpine zone's lower elevations, when humidity is high, mosses and lichens thrive; flowering plants are found at higher elevations.
- Sloths, Himalayan black bears, yellow-throated martens, Himalayan gorals, Ganges dolphins, gharials, and crocodiles are some other rare animals. Human-animal conflict is a pressing issue in the Terai Arc, which encompasses a substantial portion of the state of Uttar Pradesh.
- Cycas pectinata, Gnetum montanum, Duabanga grandiflora, Calamus species, Cythea pinulosa, Pandanus nepalensis, and Podocarpus neriifolius are examples of the typical vegetation in this area. The Terai region as a whole is dominated by Shorea robusta (sal).
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The limiting factors of an ecosystem are Habitat, Space, Resource abundance, or the reproductions<span />
Answer:
b. "Blast" cells are undifferentiated, actively dividing cells.
Explanation:
Connective tissue cells are dividing cells . These cells are fibroblasts. Mast cells, adipocytes and leukocytes. Blasts are immature dividing cells which are precursor to different connective tissue cells. Connective tissue does contain cells I.e fibroblasts, chondrocytes, osteocytes,etc. Chondroblasts are only found in cartilage not all types of connective tissue.
