The function of Langerhans cells in the dermal layer is to: A) increase blood circulation to the skin.
B) reduce heat loss of the skin.
C) reduce water loss of the skin.
D) increase the immune response of the skin.

Hemoglobin is a proton that carries oxygen around your body what is hemoglobin made from

What if the yeast were extremely active and produced more than 100ml gas. would you know? why/why not

Even though the ostrich is a flightless bird, ostriches still possess wings that stretch approximately two meters across when fully extended. scientists speculate that when dinosaurs became extinct, some of the birds that lived during that time became land dwellers since they were able to consume the food that the dinosaurs once ate. over time, these species grew larger and heavier. eventually, the ostrich species became too big to fly. the wings found on ostriches are known as a. analogous structures. b. homologous structures. c. vestigial structures. d. symmetrical structures.