BIO HELP correct answer gets branliest
Humans have 46 chromosomes, in 23 pairs. Which of the following descriptions of cell types and chromosome numbers is incorrect?

Skin cells have 46 chromosomes.

Sex cells have 23 chromosomes.

Nerve cells have 46 chromosomes.

Somatic cells have 23 chromosomes.

Which plains area lies in both the united states and canada? altiplano central canadian shield coastal plains great plains

__1__ is a climate cycle where the temperature of the __2__ ocean changes because of movements of air and ocean currents. during this period, the trade winds in the south __3__ , causing the __4__ water to move from the __5__ region to the __6__ region. 1) el nino or the monsoon 2) atlantic, indian, or pacific 3) reverse, strengthen, or weaken 4) cold or warm 5) eastern or western 6) eastern or western

When analyzing tree rings, what do scientists assume a thin ring indicates?