18. which of the following statements does not accurately describe stem cells?
a. adult stem cells are multipotent and can differentiate into many types of cells.
b. the use of stem cells may allow scientists to use undifferentiated cells to repair or replace bad cells.
c. the use of stem cells is without any objections since it can be used in therapies to humans.
d. embryonic stem cells make up the inner cell mass of a blastocyst.

any abiotic or biotic factor in an ecosystem that causes a population's size to slow or decrease is a limiting factor.

oxygen +1 most likely

answer: grassland biomes are closer to the equator and receive more rain.

grasslands are biomes that are dominated by grasses rather shrubs and trees. savanna are biomes that exhibit grasses, shrubs and small tree as vegetation. grasslands are located near the equator of the earth. these are found in north america. savanna biomes are found in africa, south america, australia and india. grassland exhibit moderate climatic conditions, it receives   amount of rainfall higher than savanna.   therefore, savanna exhibit dry and hot climatic conditions.