<span>The best definition of a fossil is any trace of an organism that lived in the past. Technically, a couple of the other choices (i.e. trace of an organism turned to rock, a hard part of an organism that has been preserved) could be considered within this group.</span>
Answer: Protons
Explanation: Protons and Nuetrons are found in the Nucleus of a atom
The answer to this question is 20 percent.
In general, women has more roles during the fertility process, so their margin of error will be significantly higher compared to the male counterparts.
The male's role during fertility process is to insert the sperm, while the women have to face potential mistakes in their uterus, their nutrition, their eggs condition, their hormones, external accidents, etca
The answer is increased mutation rate.
Reproductive isolation is the existence of biological factors that impede members of two species from interbreeding and producing viable fertile offspring. These biological barriers may be pre-zygotic or post zygotic; post zygotic barriers include developmental errors of embryo, become infertile, or not living long enough to reproduce; while the prezygotic barriers include; habitat isolation, temporal isolation, genetic barriers among others.
Pine tree with mycorrhizal<span> fungi - the fungi that help our forest trees survive and thrive!</span>
