<span>It is true that the chromosome is the sex determiner for many species. There are two types of chromosome - X, which determines the female sex, and Y, which determines the male sex. Based on these chromosomes, the child will either be a man or a woman. There are some cases where a person has only one type of a chromosome, X, when they are considered to be an 'inter sex,' although resembling females more. This is different that the usual set of chromosomes - XX for female, and XY for male.</span><span />
Answer:
72
Explanation:
I have answered this question on its learning
Answer: Carbon Dioxide, Water, Chemical, Radiant, Glucose, and Oxygen
Explanation: This is in order for the line they should be in
Answer:
B. the appearance of lichens and mosses in an area where a glacier has recently melted away
Explanation:
Ecological succession, which refers to the series of changes that occurs over time in an ecosystem, can be of two types namely: primary succession and secondary succession.
Primary succession is a succession that involves an area where no form of life has grown previously, hence, the area of land is barren e.g bare rock. Primary succession is first colonized by species called PIONEER SPECIES e.g. lichens, mosses etc.
According to this question, "the appearance of lichens and mosses (pioneer species) in an area where a glacier has recently melted away" is an example of PRIMARY SUCCESSION.
