I think it’s an organ...but not sure.
Answer: It is bc we as human kind find many different living things on earth every day in both things such as animals to bacteria.
<span>It is true, dural sinuses, cerebral sinuses, or cranial sinuses are venous channels found between the endosteal and meningeal layers of dura mater in the brain. They receive blood from internal and external veins of the brain,and receive cerebrospinal fluid (CSF) from the subarachnoid space via arachnoid granulations, and mainly empty in the internal jugular vein</span>
1. The answer is (d.) algae
In a primitive type of community, algae is most likely to be found than deer, trees, and shrubs. In anthropology, primitive culture is referring to a society or a community to lack cultural, technological, or economic sophistication.
2. The answer is (b.) a natural recovery process
Ecological succession is the process of change within an ecological community.Succession occurs because organisms gradually change the environment.
the answer is Punctuated Equilibrium i do believe, but i could be incorrect.