Answer:
B. antibodies and antigens
Explanation:
Antibodies help the body to fight microbes or the toxins (poisons) they produce. They do this by recognising substances called antigens on the surface of the microbe, or in the chemicals they produce, which mark the microbe or toxin as being foreign. The antibodies then mark these antigens for destruction.
For me since I am in k12 school I have a submission dropbox and I save my files at the top left corner where it says file I click it and go to save as.Then save to where ever you want.
Stress causes muscles to aches/tighten.
The safety catch for the 4th wheel locking lever must be over the locking lever for coupling to be complete.
What is the importance of coupling?
- If needed, use a flashlight.
- A void between the top and lower fifth wheels must not exist.
- If there is room, there is a problem (kingpin may be on top of closed fifth wheel jaws; trailer would come loose very easily).
- Look into the fifth wheel's back by crawling underneath the trailer. Make sure the kingpin's shank is enclosed by the fifth wheel's jaws
- Ensure that the locking lever is set to "lock."
- Verify that the safety latch is over the locking lever. (On some fifth wheels, the latch needs to be manually installed.)
- Drive the linked unit sparingly if the coupling needs to be repaired.
Hence the answer is over the locking lever.
Learn more about coupling here,
brainly.com/question/14867615
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