Gametes, spores I think. I'm pretty sure that's it.
<h3><u>Answer;</u></h3>
A. Gas exchanges takes place by diffusion.
B. It is an open system.
<h3><u>Explanation</u>;</h3>
- Most molluscs and arthropods have an open type of circulatory system.
- Open circulatory systems pump blood into a hemocoel with the blood diffusing back to the circulatory system between cells.
- Blood is pumped by a heart into the body cavities, where tissues are surrounded by the blood.
Answer
solar system, a globe of earth
Answer:
This is just the order of taxonomic groupings.
Domain (Broadest)
Kingdom
Phylum
Class
Order
Family
Genus
Species (Most specific)
Answer:
d they respond to pathogens
