Answer:
it stayys on surfaces fir up to 2 weeks unless disinfected
Explanation:
1) Identify the problem
2) Design a solution or product
3) Implement the design
4) Evaluate the product/solution
First start with making observations, and decide on the problem. You want to generate ideas, look and decide your limits, then create a solution or product. Then, build your product/solution, and put it to the test. Did it work? Identify the pros and cons of your product/solution, and decide what you could do better to improve your design.
1. I think A
2. <span>A.
algae (do not have seeds)
B.
mosses(do not have seeds)
C.
shrubs (I do not know if they really mean this one, but all others do not have seeds)
D.
fungi(not plants)
3. A
4. I think B
5.I think C
</span>
In an open circulatory system, the cells are in direct contact with the cells in the organism. An example of this is the jellyfish. In a closed circulatory system, cells are not in direct contact with the environment.Take our own bodies for example. When we inhale oxygen fills our lungs and diffuses into our blood. When we exhale, we release waste, or carbon dioxide and other gases.
