Lymphatic tissues are aggregations of in the connective tissues of mucous membranes and various organs.

Macrophages and lymphocytes.

Explanation:

Lymphatic system is one of the most important part of the body fluid system that also plays a role in the immunity. The lymph fluid is carried towards the heart.

The lymphatic system contains an aggregates of the lymphocytes and macrophages that plays an important role in immunity. The bacteria and proteins are also present in the lymphatic system.

Thus, the answer is macrophages and lymphocytes.

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explanation:

plate tectonics and volcanic euptions

over time, plate tectonic processes cause continents to move to different positions on the globe.

for example, britain was near to the equator 300 million years ago, and therefore was hotter than it is today. for further details look at our climate through time poster or online map.

the movement of the plates also causes volcanoes and mountains to form and these too can contribute to a change in climate.

mountain ranges formed by plate tectonics. large mountain chains can influence the circulation of air around the globe, and consequently influence the climate.   warm air might be deflected somewhere cooler by the mountains.

b. the carbon cycle ensures living things have a source of hydrogen