Water gets to the top in numerous ways. It can either go there through root pressure which pushes the water up, or it can leave the leaves through transpiration. Or it can just fall on them from clouds when it rains.
Answer:
Sex determination may be defined as the phenomena of determining the sex whether the organism is male, female or hermaphrodite. Different methods of sex determination are present in different organism.
In case of humans, the sex chromosome of an individual with XY is male whereas XX is female. Humans male are heterogametic. In case of birds the chromosome with ZZ are males (homogametic) whereas ZW is female. In case of Drosophila XY and XO flies are males , while XX, XXY, and XXYY flies are females.
Sunlight....................
All plant and animal groups existing together and the physical factors with which they interact compose an ecosystem<span>.</span>
Fossils of very old land creatures is the correct answer