When the food is scarce, cellular slime molds aggregate into a mass of cells that behaves as a single unit called a slug.
<h3>What is the importance of slugs in slime molds?</h3>
- While feeding, the cellular slime molds live as individual, singled-celled organisms. But when the food is scarce and they have to move to new places in search of food, they aggregate in groups of tens of thousands to form multicellular group called slugs.
- In slug some of the cells contribute to a 2–3 millimeter long stalk, which dries up and dies in the process of formation.
- In the presence of excess food, slime molds are present as independent amoeboid cells.
- It is now observed that in the presence of a food source, some farmer amoebae stop feeding and pocket their food for movement in multicellular migration.
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Answer:
The answer is the first option: Since the polar cytoplasm contains information to form germ cells, germ cells would form in the anterior region.
Explanation:
If polar cytoplasm is transplanted into the anterior end of the egg just after fertilization, pole cells will develop there at the anterior end, as much as they would normally develop if they are transplanted to the posterior end of an egg. Usually, Polar cytoplasm is localized at the posterior end of eggs through maternal genes.
Answer:
C) P-wave
Explanation:
P waves travel the fastest and are the first to arrive from the earthquake. In S or shear waves, rock oscillates perpendicular to the direction of wave propagation. In rock, S waves generally travel about 60% the speed of P waves, and the S wave always arrives after the P wave.
The change where they didn't only have boys anymore but had a boy which was born was more likely due to the fact that there is generally a 50:50% chance of whether a boy or a giril will be born for any given family.
Answer: Arginine and Lysine
Explanation:
Histones are protein that packs DNA into nucleosomes. It compose of Arginine and Lysine amino acids.
Lysine and Arginine are basic amino acids that aids the solubility of Histone in water and also aids the interaction of DNA and Histones.
