C. Protons and electrons must be equal as protons have a + charge and electrons are - so they cancel out
Answer:
C. Plants release carbon dioxide and take in oxygen through the xylem in leaves.
Explanation:
Plants exchange gas with the atmosphere and release carbon dioxide and take in oxygen through the xylem in leaves.
Due to the linneaus system of classification scientist were able to identify organism name , group via standardized system . They have found similarities in the organism like DNA / RNA ( genetic composition), embryonic development etc . so that they can study a organism completely . With the help of this system of classification scientist were able to give a particular name to a organism which is standardrized in the whole universe. It makes easier to all to identify an organism , otherwise different places have different name for a particular species.
Scientists use labs to Design and Carry out experiments.