The correct answer is be sure that your instrument is calibrated properly. If your instrument isn't calibrated, then your data will be inconsistent.
Answer:
D) that geographically isolated groups of dogs may be selected for quite different traits, resulting in a different dog breed
Explanation:
Artificial selection is a type of selective breeding made by humans in which offspring with desired traits are selected. Modern dogs evolved by artificial selection. Dog breeding began around 30,000 years ago from selective breeding of wolves that were separated from their original population and bred to produce dogs with desired traits (especially, loss of aggressive behavior). Purebred are reproductively isolated groups of dogs originated from the same lineage (i.e., the same common ancestor for each group), that never mated with another dog breed.
Answer:
offensive
Explanation:
including social skills, inhibited bite, social ... If you have a new dog or puppy, you can use the crate to limit his access to ... including hair standing up on the other dog's back, teeth-baring, deep growls, ... Dog aggression is any behavior meant to intimidate or harm a person or another animal.
Answer:
spermatogenesis
Explanation:
The stem cell that is located inside the seminifeous tubules inside the testis of a male, with a high level of testosterone, start the maturation process that last 74 days.
First the stem cell derived into the spermatogonia, the inmature cell that enters into a mitosis division to multiply the cells with a full number of chromosomes.
Later they enter into a meiosis process in which the spermatogonia turn into primary spermatocyte, then into a second spermatocyte, until being a spermatid. After this process the spermatids have the half of the number of chromosomes.
The last step is to maturate the spermatids into sperm cells with all the cell structures and nutrients.
