Diffusion and Osmosis
Diffusion and Osmosis
Introduction to the circulatory system and the heart
How variation can be introduced into a species.
Overview of photosythesis
Introduction to evolution, variation in a population and natural selection
Outcomes:
Outcomes:
Micturition (peeing) starts with urine flowing from the kidneys to the bladder via ureters. The bladder expands using transitional epithelium. Urine exits through the urethra, controlled by internal and external urethral sphincters. Ureters prevent backflow, thereby reducing infection risk
Skeletons support and protect our bodies. Bugs have exoskeletons outside their bodies, while humans have endoskeletons inside. Our bones are in axial (skull, ribcage, spine) and appendicular (arms, legs) groups. Bone marrow makes blood cells; more specifically, red marrow makes blood and yellow marrow stores fat.
From the extinction of the dinosaurs to humanity.