science term 1 grade 9 Flashcards
what is in the digestive system
mouth. stomach. small inestine. large intestine. rectum. pancreas.
why does your pee go dark when your dehydrated
your kidney is trying to save water colour and smell
what do the small intestines do
helps to digest food and absorb nutrienys
what does the latge intestine do
abdorb water produce vitamines
what does the pancreas testicals and ovaries do
produce hormones insulin
what does the nervous system do
connects the brain to the body and sends messages
what does the endocrine system do
releases hormones into the blood
what does the excretory system do
urinary system gets rid of waste
what does the second line of defence do
fights off pathogens using generalised attacks
what does the third line of defence do
fights off pathogens with antibodies and usesmemory cells to create immunity for the next time
what are pathogens
virus fungi bacteria
what are antibodies
a type of white blood cell
what is abiotic
non living things that affect living things in an environment
what is in your urine
water salt urea
how does the nervous system work
stimulus receptor sensory neuron brain motor neuron effector response
