Which is not an adaptation of desert animals that help them retain and acquire water in such a hot and dry environment? a. burrow in moist soil or live in underground dens b. excrete uric acid instead of urine c. evolved an internal ‘air conditioning’ system to help them stay cool d. obtain water from the plants and animals they eat

What molecules does hemoglobin decay into over time

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.

Which zone within the open-ocean zone is home to the most organisms? deep zone surface zone intertidal zone transition zone