Due to there being no answer choices I can only really give an example.
The non-living parts of an ecosystem are called abiotic factor, so Sunlight, temperature, atmospheric gases, water and soil, Biotic factors are living, so a interaction is with plants, plants require sunlight, soil, water, and CO2 to make food.
Under the tongue, inside the colon (not they smelly stuff that guys use) aaand I believe under the armpit....
Good luck~~
That would be the pituitary gland
Around the 40th week contractions start and they are 15-20 minutes apart
