Rachael has matched plant and animal structures and organs. She has matched them because they have similar functions. What is incorrect about her table? Stems and exoskeletons have different functions.
Bark and fur have different functions.
Pistils and ovaries have different functions.
Spines and testes have different functions.

thrombocytopenia, which is a deficiency in blood platelets, can cause bleeding and bruising in the dermis similar to senile purpura. other possible causes include: exposure to ultraviolet rays and aging skin are common causes of senile purpura. senile purpura may also be a sign of collagen loss in the skin and bones.

the correct answer is b

a) carbon, hydrogen

b) carbon, hydrogen, oxygen, nitrogen

c) carbon, hydrogen, oxygen, nitrogen, phosphorus

d) sugar

e) amino acid

f) nucleotide