Answer:
b. False
Explanation:
<em>Caenorhabditis elegans</em> is a well-known species which is widely used in genetic experiments (i.e., it is a model organism). <em>C. elegans</em> is a soil nematode that eats bacteria, but its survival depends on the ability to distinguish toxic from non-toxic ones. <em>C. elegans</em> cannot feed <em>Bacillus thuringiensis</em> because this bacterium produces a toxin Bt protein that damages its gut, thereby producing the death of this nematode. Interestingly, it has been proposed that Bt toxin pathways might be exploited for the design of new generation nematicides.
Answer:
The chromosomes are arranged in their respective homologous pairs. In humans, this displays 22 pairs of autosomes and 1 pair of sex chromosome.
Explanation:
Chromosomes that are similar in their size and shape and also display similar genetic traits and carry the same genetic information are paired together. These are known as homologous chromosomes. These chromosomes carry different variations of similar genes in them. In humans there are 46 chromosomes in total. These chromosomes are paired and form 23 homologous pairs. Among these 23 homologous pairs, 22 pairs are autosomes and one pair are the sex chromosomes which are either (XX or XY). The sex chromosomes determine the sex of an individual. XX chromosomes represent a female and XY chromosomes represent a male.
Learn more about autosomes here:
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Haversian canals contain osteons, canaliculi, blood vessels and <span>ligaments</span>
Answer:
Because the egg shell was still strong
