Answer those 5 questions i will appreciate soo much

1. A living thing is a system because it has multiple organs working as one.
( I honestly have no idea on number 2)
3.  A cell is the smallest structural and functional unit of an organism.
4. A multicellular organism is an organism made up of multiple cells. Plants, animals and eukaryotes are examples of multicellular organisms\

1 A living thing is a system because a sysytem is a group of factors that are related in some way.
2. environment, food and temperature.
3.the smallest structural and functional unit of an organism.
4.they are organisms that that consist of more than one cell.
5. D is a molecule, the one next to the heart is tissue and the heart is and the heart is a molecule

legislative branch of the government.

Explanation: