Ineed with questions 40 and 41 and #40 is what is a common feature of both the walnut and the oak? #41 is which tree is not shown in the diagrams? and it’s very hard and i’m struggling with it and if you need to see the picture big then click on it and it will be big

i took a test for bio that had this question and these were the correct answers, not sure if this is any now lol

the nervous system and the muscular system work together.  

sweat reaches the surface of the skin and evaporates into the air.

muscles underneath the skin relax, causing hair on the skin to lay flat.