Answer: The male is Rr. Female A is RR. Female B is Rr.
Explanation: Since single comb is recessive, both parents would have to have the gene. Good luck! :D (I only had markers near me, sorry it doesn't look that good :(
If the theory was real, two parents with ear lobes attached could not have a child with a free earlobe. A offspring from A x A matings are marginally more, but the large numbers of F offspring from A x A matings and A offspring from F x F matings suggest that this is not a single-locus, two-allele trait.
Answer:
The correct answer is option B) "To avoid the introduction or spread of insects or disease that damage native trees".
Explanation:
The regulations introduced by the Minnesota Department of Natural Resources include the proper handling of firewood, which prohibits the use of firewood from one protected area into other protected areas. The reason behind this regulation is to avoid the introduction or spread of insects or disease that damage native trees. Each tree in each protected location is adapted to its local fauna. Serious environmental damage could arise from introducing insects from a protected area to another by improper handling of firewood.
Answer:
can be caused by a habitat destruction
happens when a species or population dies out