Which statements are true about all the natural chemical cycles?

-each cycle can operate and balance itself

-each cycle affects other cycles

-natural earth cycles cannot be disturbed

-human activity has upset cycles in local areas

-all the natural cycles work together to support life

Each cycle affects other cycles. All the natural cycles work together to support life. Human activity has upset cycles in local areas.

d. in sexual reproduction, offspring have more chromosomes than

either parent.

asexual reproduction results in offspring which are genetically the same as the parent organism (not counting a rare mutation). sexual reproduction produces a random mixture of the genetics derived from both parents

explanation:

the second type of galaxy is called a barred spiral, which has a thing called a bar straddling the nucleus