Vernon is studying the population of deer in a tract of forest. He gathers the
following data.
Birthrate: ~50 deer/year
Death rate: ~70 deer/year
Which additional observation would support the conclusion that the deer
population is NOT changing size from year to year, meaning that the net
population change is 0?
a. About 20 deer per year immigrate to the tract of forest.
b. About 20 deer per year emigrate from the tract of forest.
C. The average life span of a member of the deer population is 20 years.
d. If a deer survives its first year of life, its average life span is 20 years.

What’s this animal (picture is tagged) and where is it most likely to live, rainforest or desert?

What is the difference between the conducting zone and the respiratory zone of the respiratory system? the conducting zone is a series of cavities and tubes that move air to the respiratory zone where gases exchange with the bloodstream. the conducting zone exchanges gases between the lungs and the alveoli and the respiratory zone is a series of cavities and tubes that move air to the conducting zone. the conducting zone moves oxygen into the cells and the respiratory zone takes carbon dioxide away from the cells. the conducting zone moves oxygen into the bloodstream and the respiratory zone takes carbon dioxide away from the bloodstream.

When mendel crossed a true-breeding short plant with a true-breeding tall plant all the offspring were tall. which term describes the gene for tallnes?