Answer:
it's the first choice. The Great egret.
Answer:
Floating ribs
Explanation:
The thoracic cavity has 12 pairs of ribs evenly distributed on the left and the right sides of the cavity that function to provide surface area for muscle attachment such as the intercoatal muscles that assist in breathing. The ribs are flat shaped bones semi circular in shape attaching to the thoracic vertabrae with a wider. The first to the tenth ribs are linked to the sternum by a cartilage to assist in their epansion and relaxation during breathing. The 11th and 12th ribs have no cartilage that can attach them to the sternum and hence are called floating ribs.
Answer:
PRFM
Explanation:
- Receptor-mediated endocytosis is a process where cells absorb proteins, hormones, metabolites and sometimes viruses with the formation of an invagination (inward budding of the plasma membrane). Cholera toxin, flu viruses, and diphtheria have sites that cross-react with receptor-binding sites and gain entry into cells through this pathway. <em>Pathogenic particles such as SV40, papillomavirus, and cholera toxin enter the cell via this pathway.</em>
- Phagocytosis is when a cell ingests or engulf large cells (up to 0.5 µm) or small particles to remove them from circulation. Neutrophils and Macrophages are an example of cells that phagocyte.<em> In animals, this pathway is normally limited to professional cells such as neutrophils.</em>
- Pinocytosis, also known as fluid endocytosis is the process by which liquid droplets are ingested by a cell. Potocytosis is a variation of pinocytosis, the vehicle for internalization is the caveola, an invagination formed by proteins called caveolin. <em>This pathway depends on caveolin and cavin proteins.</em>
- Macropinocytosis is the engulfment and uptake process of large amounts of fluids by the appearance of numerous irregular ruffles that eventually collapse towards the cell membrane, enveloping the content. <em>This pathway proceeds by the formation of highly ruffled regions in the plasma membrane which then collapse, resulting in fluid uptake.</em>
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