The answer could be either B or D. Both are important for marine biology. I would have to say D is the best answer though!
Tissue systems, types of symmetry, presence and types of body cavities, types of development and segmentation Illustrate how body cavities distinguish branches of development of animals with bilateral symmetry.
Answer:
3
Explanation:
Allowing the thermometer bulb to touch the beaker will result in inaccurate readings because the thermometer will conduct heat from the beaker. This will be worse especially if the beaker is not at temperature equilibrium with the liquid inside. Also, don't handle the thermometer until the temperature levels off.