It’s a=big is the beat answer
Answer:
the lack of double bonds between adjacent carbon atoms in a fatty acid.
The answer is <span>adrenal gland.
</span><span>Hormones are chemical signaling
molecules secreted by glands, either endocrine or exocrine. </span><span>Endocrine glands secrete hormones
directly into the bloodstream without using a duct,
unlike the exocrine glands. Endocrine
glands include pancreas, hypothalamus, pineal gland, pituitary gland, thyroid
gland, parathyroid gland, adrenal gland, ovaries, testes</span>
Birds start their lives inside the egg. When some birds hatch from the egg they are covered in downy feathers, and they are able to run around and find their own food. Many ground-living birds, such as pheasants and ducks, develop in this way.
Eukaryote cells are single I’m pretty sure like it’s 1 thing