.035 is the correct answer
<span>Specialized ________________ cells, called T cells, are first to react in the human body when there is a viral attack. A) lymph B) platelet C) red blood D) white blood
Answer: White Blood</span>
Answer:
viruses are not alive because:
they do not make their own membranes.
they don't have cytoplasm or ribosomes.
they have only one nucliec acid.
they have no metabolism outside the cell.
they don't move.
Explanation:
all these statements are true.
The black widow spider is an invertebrate. Its skeleton system hangs outside its body. The only difference between a vertebrate and invertebrate is the presence of backbone or a similar kind of structure with in the body. In case of black widow spider, the internal structural element is missing. Its skeleton system can be classified as exoskeleton.
I think this is called relative dating...............