Answer:
The answer should be "The results failed to support the hypothesis that hummingbirds are most attracted to the color yellow" because in the question Rashad and Kendra made a hypothesis that the color yellow attracts hummingbirds more than other colors and carried out an experiment. Their results, however, contradict with their hypothesis as out of all the hummingbird feeders of different colors the one that is color red has the least amount of food left, therefore implying more visits from the hummingbirds.
Explanation:
Cardiac output, peripheral resistance, hormonal changes coming from glands, blood volume & blood viscosity
Answer:
Letter a) Protists would have less permeable membranes than those in hypotonic or Isotonic environments, wlowing less water to enter the coll. Also, they could possibly develop higher salt concentration within the cell to retain water.
I think the answer is the last one; Flame bulb; flat worm.
A flame bulb or a flame cell is a specialized excretory cell found in the simplest fresh water invertebrates, including flatworms, rotifers and nemerteans; these are the simplest animals to have a dedicated excretory system. Bundles of flame cells are called Protonephridia.
