Answer:
Pleistocene Epoch
Explanation:
Modern humans coexisted with woolly mammoths during the Upper Palaeolithic period when the humans entered Europe from Africa between 30,000 and 40,000 years ago. Before this, Neanderthals had coexisted with mammoths during the Middle Palaeolithic, and already used mammoth bones for toolmaking and building materials. Woolly mammoths were very important to ice-age humans, and human survival may have depended on the mammoth in some areas.
The Pennsylvania period, Precambrian period, and the Palezoic Era all existed millions of years before mammoths and humans.
Answer:
B
Explanation:
When deforestation takes place, it heats up the atmosphere causing more global warming.
<span>Many movements are involved in the process of food-making of plants. one of which is transpiration. If humans sweat through his skin pores, plants sweat through its stoma (stomata-plural form) which is found underside the plants' leaf. The main purpose of transpiration is to exchange gases by releasing water through the stomata but it is not the only force that drives water movement within a plant,so, the answer would probably be letter c. </span>
Answer:
The specific immune response is the immune response provided by cells of adaptive immune system such as B-cells and T-cells.
Explanation:
The immune system or response which protects our body from any specific pathogen or specific antigen is the <u>specific immune response system</u>. It is also known as the adaptive immune system.
The major character of the specif immune response is the <u>recognition of antigens</u>. The specific immune response system or adaptive immune response provided by B-cells and T-cells. B-cells produces special protein molecules called <u>antibodies</u> and T-cells produces cytokines that attack antigens.
