+ not having enough food for everyone
+ how many people migrate
+ birth/death rates
+ how much water there is
+ how much nutrients/minerals are available
+ how much trees/oxygen is available
D-cartilage
Cartilages are soft connective tissues which provide flexibility to certain organs. You can feel it by touching you ear pinna that it is hard and flexible but not fleshy.
Hope I answered the question .
The right answer is C) vector
In molecular biology and genetic engineering, vectors are DNA molecules that allow the propagation of sequences of interest. These are chimeric DNA molecules such as plasmids or artificial bacterial chromosomes, containing an origin of replication and one or more genetic markers. The origin of replication allows the maintenance of the vector in the target cell during generations.
The two types of crust are oceanic and continental, the lithosphere is composed of earth's crust and upper most mantle
