I only know the answer for No 2)
It is Microfilaments which are the part of cells skeleton.
Carbon dioxide because people in other animals exhale carbon dioxide as a waste product. People and other animals need oxygen for plants produce oxygen during an important process called photosynthesis which turns the sun energy into nutrients so carbon dioxide would be the answer.
Answer:
Porifera or Sponges
Explanation:
Porifera is the phylum of the simplest multicellular marine animals. Their body is composed of two cell layers (something like tissues) and mesophyl between them. The body is in direct contact with surrounding water through the large number of pores and channels. What makes Sponges so simple is that their cells are unspecialized and that they don't have nervous, digestive or circulatory systems.
Answer:
Theoretical Philosophy
Explanation:
The view that philosophers need to focus less on the attempt to solve theoretical issues in environmental ethics and think instead about the best ways to solve real and pressing environmental problems is called theoretical philosophy. This branch of philosophy deals with environmental problems on a theoretical level. The ways that are devised by these disciplines may or may not be applicable in real life because of their theoretical approach.
