D. all the above I just took the test for it
Answer:
(look at explanation)
Explanation:
Cardiac muscle tissue works to keep your heart pumping through involuntary movements. This is one feature that differentiates it from skeletal muscle tissue, which you can control. It does this through specialized cells called pacemaker cells. These control the contractions of your heart.
Answer:
nitrifying bacter i believe
Explanation:
Hope this helps :)
Answer:
1). Amazon Rainforest has the greatest biodiversity.
2) Population Biodiversity is not the type of biodiversity.
3) The variety of species in an environment is called biodiversity.
4) b. The greater the biodiversity, the worst the ecosystem, is the correct answer.
5) When every single organism of a species dies it is called extinction.
