Coral bleaching occurs when the zooxanthellae algae that live in coral leave or die due to stress. which of the following is the best evidence of a mutualistic relationship between zooxanthellae and coral rather than commensalism? corals are stressed and more likely to die without zooxanthellae; the zooxanthellae grow best when associated with the corals. corals deliberately expel the zooxanthellae when under stress. zooxanthellae give corals their bright colors. zooxanthellae provide nutrients to the corals, but corals can survive without zooxanthellae.

Below are the three main organs that make up the plant body. what is the main function of the structure that is identified as b in the picture above? it anchors the plant. it produces food. it absorbs nutrients. it supports the plan

Which statements best describe the differences or similarities between a comparative investigation and an experimental investigation? check all that apply. experimental investigations are best for showing cause-and-effect relationships, while comparative investigations do not necessarily show this type of relationship. comparative investigations are often impractical and unrealistic, while experimental investigations are the most practical and realistic kinds of investigations. comparative investigations allow for the use of a wide range of variables but do not have a control group, while experimental investigations involve variables that can be controlled. both experimental investigations and comparative investigations are designed to answer scientific questions. both experimental investigations and comparative investigations focus on making observations rather than collecting new data.

Pink fur (p) is dominant to purple fur (p) in hamsters. two heterozygous pink hamsters are crossed. what is the probability that these two parents will have an offspring with purple fur? 2/4, 1/2 or 50% 1/4 or 25% 3/4 or 75% 4/4 or 100% there is no chance for this type of offspring