Found in algae and plant cells contain thylakoids

What protects the lining of the stomach from acidic gastric juices?

Need the diagram below, which is not drawn to scale, shows the position of the earth, moon, and sun. what type of eclipse occurs when the earth, moon, and sun are lined up in the order shown? a. planetary eclipse b. solar eclipse c. martian eclipse d. lunar eclipse

28. how many linkage groups will be formed by homogametic organism with 28 chromosomes?