Answer:
hydrogen, oxygen, carbon and nitrogen
I did 4 instead :')
Explanation:
Water
stones
plastic plants
hope this helps!
Answer:
Pacemaker cells are located in the <u>sinoatrial node.</u>
Contractile cells are located in the <u>Heart</u>
Explanation:
I would say communication, as neurons transmits messages from one part to another part of the body
Answer:
Yes, they are!
Explanation:
While inhabiting marshy areas, the Balaeniceps rex is found to be both a secondary and tertiary consumer preying on fish ranging in size from that of Large Mouth Bass to the small Pacific Herring, and other aquatic organisms such as frogs similar to the Red Eyed Tree Frog