Mitosis
Advantages: It enables your cells to multiply quickly and produce sister chromosomes.
Disadvantages: There is little genetic variation, each generation faces the same diseases.
Meiosis:
Advantages: The crossing over of genes during meiosis results in individual variety, which is beneficial to the population's survival.
Disadvantages: It requires the use of two gametes.
Answer:
<h2>
Gastrin: stomach,
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CCK- SI,
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Insulin- pancreas,
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Glucagon-pancreas. etc</h2>
Explanation:
1. Gastrin: secreted by stomach stimulating activity of the stomach
,
2. CCK: secreted by SI stimulating secretion of pancreatic enzymes; contraction of gallbladder and pyloric sphincter and inhibitory effects on stomach
3. Secretin: secreted by SI if material entering SI is acidic, triggering secretion of HCO₃-
.
4. Insulin: produced by beta-cells of pancreas and
stimulates storage of glucose in liver and muscle and it causes re-uptake of glucose when blood-sugar is high, lowering blood sugar
5. Glucagon- produced by alpha-cells of pancreas and
it stimulates release of glucose from liver when blood-sugar is low, and results in raising blood sugar.
Artifact selections benefits humans by helping us learn what had happened in the past.
The labeled anatomical features of the muscle filament are attached as an image.
Muscle filament or Myofilaments are the two protein filaments of myofibrils in muscle cells. The two proteins are myosin and actin and are the contractile proteins involved in muscle contraction.
- It has two filaments, a thick one made up mostly of myosin, and a thin one composed mostly of actin
- Actin is a filament made up of protein that contributes to the contractile property of muscle. It is found in two forms, G-actin (monomeric globular actin) and F-actin (polymeric fibrous actin)
- Tropomyosins are contractile proteins that regulate contraction in both muscle and non-muscle cells with help of myosin and actin filaments. It is present in animal cells.
- A troponin complex is a group of three proteins, troponin T, troponin I, and troponin C, subunits located on the thin filament of the contractile apparatus.
Thus, the correct labeled anatomical features of the muscle filament is attached as an image.
Learn more about Actin and myosin:
brainly.com/question/13989896
