A and b are cells so they definitely are not bacterium so c and d are bacterium I think. Your welcom.
Answer:
Why can a female only pass on an X chromosome to offspring?
It is an established fact that female has XX chromosomes while male has XY chromosomes, during fertilization both male and female donate one of the pairs to form a pair of allele for the offspring. The female donate an X chromosome since the two chromosomes in her possession is XX while the male donate either of the X or Y chromosome
Explanation:
He could have it due to genetics from his parents or grandparents
Male animal aggression during mating season. The evolutionary purpose of most species is to repopulate and keep the species alive long enough to become the highest being it can evolve into (We humans have done the best at this so far). So, every male in a species gets aggressive during mating season because the stronger ones are most likely to have healthy offspring. So, when animals fight they are fighting to keep their species alive. If you think about it who wouldn't want to be responsible for the evolutionary breakthrough that kept a species alive over thousands of years? hope this helped.
Bathymetry is the measurement of
ocean depths, is the study of underwater depth of lake or ocean floors. Bathymetry in other word is the underwater
equivalent to hypsometry or topography while Topography is the physical
geography or the shape and arrangement of landforms<span>. </span>
