I believe it's a. hydrogen bond
Answer:
1. Essential organs form during early development
Explanation:
Harmful chemicals (toxins) cause the most disease when they are present during fetal development, because organ systems are being developed and the rate of growth is very fast.
Answer:
bones, ligaments, tendons, and joints.
Explanation:
Answer: Hope this helps you.
1. Ecologist (c)
2. Population (g)
3. Ecosystem (f)
4. Stable (e)