Foreign invaders have proteins called antigen, which antibodies lock onto to neutralize. The foreign proteins are different from proteins in our own body, so the immune system can recognize them and finally eliminate them.
Answer: A, B, and D
Explanation: I had the same assignment and i got these ones right soooo
Answer:
A
Explanation:
when light is limited photosynthesis will be slowed so the euglena will prefer to ingest food...light is needed for photosynthesis
Pattern formation in plant embryos involves several morphogenetic steps, during which cell type specification, asymmetric cell division, and cell–cell communication play critical roles.
