Answer:
The spleen
Explanation:
The spleen acts as a filter for blood by recycling old and defective red blood cells. It also stores red blood cells, platelets and white blood cells.
Answer:
The 4 macromolecules are nucleic acids, carbohydrates, proteins, and lipids.
structure: Carbohydrates, lipid, and protein
Function: Nucleic acids, Carbohydrates, Lipid, and Protein
Explanation:
D
producers are plants, so they won’t attack anyone
Answer:
B) meteorite sample
Explanation:
The age of the solar system, derived from the study of meteorites (thought to be the oldest accessible material around) is near 5 billion years; that of the Earth is taken as 4.6 billion years. The oldest rocks on Earth are dated as 3.8 billion years.
