Nervous System
What is the scientific name for a nerve cell
Neurone
The master gland
Pituitary Gland
What body system breaks down food into smaller molecules for absorption
Digestive System
Organisms that make their own food are called________________ eg _____________
Producers; plants
What is the function of the skeletal system
supports the structure of the body
Central nervous system consists of
Brain and Spinal Cord
Which of the following is NOT an endocrine gland.
Adrenal, thyroid, kidney
2 ways the body reacts to cool itself
Dilated blood vessels, sweating
Which of the following is an abiotic factor:
water, competition, predator
Water
Name the biotic factor where one organism lives on or in another organism and feeds off it
parasitism
Involuntary response to a stimuli eg hot or sharp object
Reflex Action
Endocrine glands release these into the blood system
Hormones
Vaccines are made from
Dead or weakened forms of the pathogen
Identify the different trophic levels in the food web below
Grass seed ----- Mice----- snake ----- owl
Producer, 1st order consumer, 2nd order consumer, 3rd order consumer
white blood cells responsible for making antibodies
Lymphocyte
2 parts of the autonomic nervous system
parasympathetic and sympathetic nervous systems
Hormones act on specific cells called
Target Cells
The body produces these in response to the vaccination
Antigens
Why are there more producers in a food web than 1st order consumers.
Only 10% of energy is available for the next feeding level - the organism uses 90% of the energy for itself.
The abiotic factor that describes water clarity
Turbidity
Maintaining a constant internal environment
Homeostasis
The body system that includes the kidneys
Excretory System
Give 2 advantages for having children vaccinated.
Economic advantage - less people in hospital
increase life expectancy
limit the spread of disease outbreak
Why should humans care about ecosystems
Keeps the organisms in balance
Why does frostbite occur
Limit heat loss when the body is exposed to extreme cold