These lines (there is four of them) are residuals of the fusion of the five sacrum vertebrae that are fused. These "vertebrae" or segments present a characteristics, being the first of them very similar to a lumbar vertebra, large, and the other vertebrae are<span> progressively smaller and flattened. They also present a curved shape being anteriorly concave.</span>
<span>Planaria have a huge regenerative power because of the presence of adult stem cells called neoblasts. If you cut Planaria into pieces, each piece can regenerate into a complete organism and that’s a form of asexual reproduction. Cells which are located on the wound site proliferate to form a blastema-mass of cell that will grow into a new organ. Those cells will differentiate into new tissues and regenerate the missing parts.</span>
<span>The similar thing is happening with starfish.</span>
Answer:
If two heterozygous tall pea plants are crossed, the probability of their offspring being tall is 75%
Answer: The best way for farmers to prevent fungi from growing is to make sure there is not enough moisture for fungi to survive and grow
Explanation: Fungi require moisture or water for a wide number of reasons. One of the best guesses I can give as a reason to why they might need it is to help them in the process of digestion. Fungi use digestive enzymes which are specially shaped proteins that break down macromolecules like glucose or cellulose and a number of other biological molecules, and they do this through one of two processes, dehydration synthesis, or hydrolysis. Hydrolysis in particular is the one that requires water. It uses pieces of water to break a bond between complex sugars and carbohydrates among other molecules, to separate them into smaller and easier to absorb monomers which are the subunits that make up the molecule. It breaks apart the water and uses the pieces to fill in the gaps of the pieces the monomers used to share.
