So planarians' regenerative ability are powerful cells called pluripotent stem cells, which make up one-fifth of their bodies and can grow into every new body part. I hope this helped if you need more info about this let me know
Answer:
Low cost has low quality whereas high cost has high quality.
Explanation:
If the main criterion was keeping the cost of materials as low as possible so he must used the materials of low quality for their work because the low quality materials are made of cheap material while on the other hand, if the main criterion was getting the best performance from the material so he has to used the materials of high quality. The high quality materials are very expensive but its performance is excellent as compared to cheap materials.
Answer: The concentration of calcium in the myofibril must decrease.
Explanation:s soon as the stimulus which causes myofibril to contract stops, its time for muscle to relax.
A low calcium level in the protoplasm is the utmost requirement of muscle relaxation otherwise sliding of myosin will continue and muscle will keep on showing contraction. In order for muscle contraction, calcium ion i.e. Ca²⁺ must come out of the protoplasmic reticulum so for relaxation reverse process occurs i.e. Ca²⁺ is pushed back to the protoplasmic reticulum. There are many pumps known as "calcium pumps" which facilitate this process. Now, the concentration of Ca²⁺ becomes comparatively low in the protoplasm which causes troponin C to detach from Ca²⁺. Their detachment causes actin and myosin to detach from each other too which finally leads to muscle relaxation.
Answer:
food chain
A food chain is a linear sequence of organisms through which nutrients and energy pass as one organism eats another. In a food chain, each organism occupies a different trophic level, defined by how many energy transfers separate it from the basic input of the chain. pls marl me asfood chain
Brainliest
<u>Phytochemicals</u> are the compounds which gives color and taste to the food.
Explanation:
Phytochemicals are chemicals which occur naturally in plants which enhance taste or color when added to food. They are commonly found in vegetables, fruits, whole grains, nuts, seeds and beans.
These are the unique chemicals that give carrots their bright orange color, the searing hotness to the peppers, the bright blue color to the blueberries, the unique flavor to onions, etc.
There are many types of phytochemicals like carotenoids (carrots), flavinoids (apple), anthocyanins (berries), polyphenols (tea), reservatrol (wine), sulfides (onion), isothiocyanates (cabbage), quercetin (apple), proanthocyanidins (grapes), terpenes (cherries), leutins (green leaves) etc.
Phytochemicals are natural chemicals which behave like antioxidants and prevent many diseases like cancer.