Gymnosperms are no longer restricted to moist environments, as are ferns and mosses because they have evolved to produce non-flagellated pollens that do not require water or moisture to reach the egg whereas ferns and mosses have flagellated sperm that needs moisture to swim towards the egg.
Another major evolutionary adaption in gymnosperms is the production of seeds instead of spores since seeds contain their own nutrition in the form of endosperm, seeds can travel large distances through wind or animals and can germinate when they find suitable conditions. Seeds can remain dormant for several years whereas spores have a shorter lifespan.
To learn more about endosperm here
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I'm not sure what you mean by "compartments", but the cardiovascular system consists of the heart, blood vessels, and approximately 5 liters of blood.
Dissecting microscopes used for the observation of larger objects and u can get a magnification of less than 100x.
<span>Dissecting microscopes are most often used by plant biologists
IM NOT VERY SURE</span>
The correct answer is secondary sexual characteristic.
These are the characteristics that start developing in humans during puberty. Primary sex characteristics are obviously reproductive organs, but secondary characteristics refer to pubic hair, enlarged breasts with females, and facial hair/Adam's apple with males.
