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The cellular junctions and receptors help an organism maintain homeostasis is when <span>they carry signals throughout the body to maintain body functions</span>
B. Science can answer only questions about the natural world.
The molecular clock tracks down nucleotide sequences for DNA or amino acids that contain sequences of proteins. Scientists use this to deduce the time in history where life forms possibly have diverged. This technique is also known as a gene clock or an evolutionary clock.
Answer:
C
Explanation:
As air passes through our own body causing respiration
the ostrich is adapted to high speed in the environment and and fast creature on two legs as it speeds up and oustrip enemies powerful legs and flexible knees two toed feet and it has adaptions for speed
