Body Systems & Homeostasis
What system sends fast electrical messages?
Nervous System
What hormone lowers blood sugar?
Insulin
What cells fight infections?
White blood cells
Two types of reproduction?
Sexual and Asexual
What is the male reproductive cell called and what hormone is released by the testes?
Sperm and Testosterone
What organ produces hormones?
Endocrine System
What gland controls blood sugar?
Pancreas
How does the body respond faster to a second infection?
Memory Cells react quicker
Which fertilization is more successful?
Internal Fertilization
What is the function of a flower’s petals?
Attract Pollinators
What process keeps internal balance?
Homeostasis
How is Type 1 diabetes different?
No insulin production
What do white blood cells produce to fight infections?
Antibodies
Why is sexual reproduction better?
More genetic diversity, parental protection, Higher fertilization rates.
What organ controls body temperature?
Hypothalamus
How does the body cool down?
Vasodilation, Sweating
What hormone increases blood glucose?
Glucagon
What is innate immunity?
First defense (skin, mucus, etc.)
Where does fertilization occur in humans?
Fallopian Tubes
What is the role of the liver in blood sugar control?
Stores and releases glucose
Why is the nervous system faster?
Uses electrical impulses, not hormones
What type of macromolecule is glucose stored as in the liver?
Glycogen
What is an antigen?
A foreign substance that triggers an immune response.
What part of the stamen produces pollen?
Anther
What is the female reproductive organ of a flower?
Carpel (or Pistil)