Answer:
The proportion of male tortoiseshell cats is very low. This happens because the colors are linked to sex because they are exclusively on the X chromosome, to have two colors (black and orange) must have two X chromosomes from the father and mother
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For a male cat to be tortoiseshell, a genetic anomaly must occur: the presence of two X chromosomes and one Y (XXY).
I believe that would be mostly oxygen
The acacia is considered to be in an ecological niche. This is because it plays a certain role and position for species that are around it, and in this example the ants are the ones who interact with this tree. The tree then provides it with protection for it to survive its environment.
<span>The ischemic penumbra can maintain metabolic demand with marginal blood flow from collateral circulation for a maximum of 50% before increasing in size. A penumbra is the area where the flow of blood at about 25 - 50% can maintain normal metabolic demands for 6 - 8 hours only. When it continues to increase, the human cells will die and other neurological activity will be suspended causing the person to die slowly.</span>
Transparent glass would allow the most light into a room.