Inge Lehmann's discovery of a solid outer core in Earth's layers. Hope I helped! Please mark as Brainiest!
Answer:
Electron microscopes use a beam of electrons instead of beams or rays of light. Living cells cannot be observed using an electron microscope because samples are placed in a vacuum. ... the scanning electron microscope (SEM) has a large depth of field so can be used to examine the surface structure of specimens.
Explanation:
No Explanation Just Pure Common Sense
Answer:
Probably this site tells you the broad idea of this subject. https://faculty.weber.edu/btrask/genetics_practice_problems-answer_key.pdf
Explanation:
I don't know anything really, I just saw the please help me title while reading an answer and this is a long shot away from my major. My best guess is A.
Answer:
Biogeographic isolation causes changes in gene pools that result from populations being separated.
Explanation:
Biogeographical isolation consists in the separation of a population by a geographical barrier, giving rise to <u>subpopulations</u>.
With isolation, the subpopulations start to suffer different pressures from the environment and consequently the selected genes in one subpopulation will be different from the other subpopulation.
Due to the biogeographic isolation, the two subpopulations will be prevented from crossing and the differences between them will become more and more accentuated, and with that the <u>subspecies</u> appear.
Over time, these subspecies may become so different from each other that reproduction between them becomes impossible.
When this happens, reproductive isolation occurs and, consequently, the emergence of new species. When speciation occurs due to geographic isolation, it is called allopatric speciation.
Answer: 75% will be red while 25% will be a mix
Explanation:
With a punnet square you get RR, Rr, YR, and Yr. RR, Rr, and YR are all dominant while Yr has the recessive red gene
