Answer: phagocytosis; lysosomes
Collar cells in the sponge digest food through phagocytosis or by using enzymes that come from the lysosomes. Bacteria are among the elements that are broken down by phagocytosis with the help of some specific enzymes found in lysosomes.
Answer:
Antigen-presenting cells
Explanation:
Class II MHC molecules are present on the surface of all the antigen-presenting cells. Some of the examples of antigen-presenting cells (APCs) are dendritic cells, macrophages and B cells.
The Class -II MHC molecules are formed in the endoplasmic reticulum of these cells followed by binding of antigen peptide fragments to these class II MHC molecules. The antigen-MHC II complexes are then inserted into the plasma membrane of these antigen-presenting cells.
Answer:
Eliminate from the following
Explanation:There following are the only types of volcanos
Cinder cones,composite volcanoes,shield volcanoes and lava domes
Phosphorus is present in both living and non-living things. Reason is because phosphorus is inside in our human bodies and animals also (used for carbohydrates and fats also needed for protiens and for growth). In non-living things is when its in its soild form
Overland flow can concentrate in small grooves called rills, which can enlarge to form gullies.
Between valley's at the top of interfluves water runs across the landscape in flat sheets known as overland flow. As more and more water falls, the sheet of moving water becomes larger and larger. Eventually the water forms rills, Rills are small channels of water running across the surface of the landscape. The creation of rills happens much more quickly in areas where there is little vegetation. Many rills come together, forming larger gullies. Gullies can get quite large, and help to feed large amounts of water into streams and rivers.