Arrow a should point to muscle tissue, arrow B should point to an organ, arrow c should point to organ system.
Answer:
The tiny muscles that make up the iris, known as the circular and radial muscles, relax and contract to maintain a fairly constant level of light entering the eye. In bright light, the circular muscles contract whilst the radial muscles relax. This causes the pupil to constrict and less light enters the eye.
Explanation:
Prokaryotic cells and microscopic organism lack membrane-certain organelles discovered in eukaryotes. but, prokaryotes must perform most of the identical features as eukaryotes.
- Nucleus-Hereditary statistics/DNA/chromosomes or RNA synthesis in cytosol.
- Ribosomes-website online of protein synthesis.
- ER-Diffusion of molecules in cytosol.
- difficult ER-Protein synthesis/delivery in cytosol; may be related to transcription.
- smooth ER-Lipid synthesis or detoxing takes place in cytosol.
- Mitochondria-other membranes or cytosolic molecules characteristic in ATP synthesis.
- Chloroplasts-other membranes or cytosolic molecules function in mild absorption/photosynthesis/carbohydrate synthesis.
- Plastids-Pigments are disbursed at some point of cytosol or are related to membranes.
- Vacuole, vesicles-Inclusion our bodies/granules/massive molecules in cytosol.
- Cilia or flagella-Motility via bacterial flagella.
- Basal our bodies-other systems guide flagella.
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An organ is when two or more tissues come together to preform a job
