I think it’s d.
search it up to make sure
In adults, stem cells remain undifferentiated until they are needed to repair or replace other cells. Stem cells can produce cells that are identical to themselves.
Answer:
answer down below
Explanation:
Clean Energy matters because it can help reduce problems associated with fossil fuels.
Answer:
Explanation:
Conserving the environment and preventing soil erosion, desertification, and flooding is essential. Unsustainable farming techniques not only impact natural ecosystems but also ultimately make farming itself impossible. ... Marine conservation is vital to protect human food supplies as well as marine anima
Answer:
True
Explanation:
It is divided into three lobes and each lobe is supplied by one of the secondary bronchi. The left lung is longer and narrower than the right lung.