Answer:
The circulatory system consists of the heart, the arteries, veins, and capillaries.
Explanation:
Answer:
Because the trophozoites are unable to survive outside a host.
Explanation:
The term infectious is used for a disease or microorganism that can be transmitted from one organism to the other organism through the environment. If we look at the two forms of Giardia, we find that out of the two forms viz. cysts and trophozoites, only the cysts of Giardia have the ability to remain alive in the environment outside the host and thus they are able to be transmitted to the other organisms. On the other hand trophozoites are not able to survive in outside environment so there is no chance of transmission of trophozoites.
Answer:
Oxygen, air, oxygen from the air, oxygen from air and the second part is synthesis
Explanation:
Got it on edge
magnet on the doors of fridges provide a tight seal to prevent the food from spoiling/rotting
pls give brainliest
