The correct answer to this question : <span>Carbon dioxide, Nitrous Oxide, Methane</span>
The correct answer is letter A. Venom glands and varied diets are the reasons why cane toads are considered as invasive species in Australia. They cause major ecological imbalance within their immediate surroundings and have caused an infestation all over Australia.
Scientists consider CARBON DIOXIDE to be the main engine of the atmospheric warming related to greenhouse gases. Global atmospheric carbon dioxide levels have been rising steadily since the Industrial Revolution which marks the beginning of our extensive use of fossil fuels. Fossil fuel use puts carbon dioxide gas into the atmosphere faster than natural systems are able to use it.
Because when a macrophage capture an anitigen, some fragments of antigens are then display on the surface of macrophage, which are then easily recognized by other fighting cells.
Answer:
The correct answer is - the presence of pores.
Explanation:
The name Porifera is a term that means pore bearer as these individuals are one cell thick with many tiny pores present on their body and some big openings as well. These small pores are one of the characteristic features of these organisms. It distinguished the Porifera phylum from the Cnidaria phylum. There are many other microscopic and behavioral features present to classify them but in the lab presence of pores is important.
