A male offspring is produced when the sex chromosomes combine in an XY pair. A female would consist of an XX pair.
Answer:
umm chile
Explanation:
me dont understand because im slow
D). Carcinogens are chemical factors in an organism's environment that can cause spontaneous mutation.
<em>it is the inflammation of joints mostly present in hands , feet and arms ..
the cause of this disease is
<u>D . autoimmune reaction ..</u>
</em>
Answer:
In the case of the algae, each individual cell is responsible for absorbing its own water. This makes the algae nonvascular compared to the highly vascular plant species. In this connection, algae also lack several key structures that are normally present in ordinary plants like the leaves, roots and stem.