Which is not an adaptation of desert animals that 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 them stay cool
d.
obtain water from the plants and animals they eat

Name the organs of humanelemintary canal.

Select the correct answer. which mutation is harmful to the organism? a. a mutation allowing moths to camouflage better on blackened tree bark b. a mutation making staphylococcus aureus resistant to the antibiotic methicillin c. a mutation inhibiting human immunodeficiency virus from attaching to and entering the cell d. a mutation causing uncontrolled cell division e. a mutation giving plant leaves a bitter taste to discourage herbivores from eating them

Which part of the neuron below is indicated by the arrow, and what is its function? hormones send chemical signals throughout the body to regulate other body processes. hormones are chemical signals that are sent throughout the body to regulate other body processes. hormones send electrical signals throughout the body to regulate other body processes. hormones are electrical signals that are sent throughout the body to regulate other body processes.