In alternate leaf patterns, how many leaves are produced at each node?
Answer: One
To breath in the air, frog lowers the floor of the mouth. That causes throat to expand and nostrils to open. The air enters the mouth through nostrils and after that nostrils close. The floor of the mouth contracts to push the air into the lungs. To breath out the air, the floor of the mouth is lowered again and the air is pushed into the mouth. Nostrils open again and the air leaves the mouth.
Answer:
C. The particles that make up the aluminium bar are moving faster.
Explanation:
You can notice how you rub your hands outside during winter, right? It gets warmer the more you rub your hands, so it is basically like that, but with the particles of the aluminium bar.
Answer:
tRNA
Explanation:
tRNA goes into the cytoplasm attaching to anticodons and bringing them back to the ribosomal unit where it attaches to the mRNA.
The correct answer is option Covalent bonds.
The water is a molecule formed by the covalent interaction between one oxygen and two hydrogen molecule. The chemical formula of the water is 
. In the water molecule, each hydrogen atom shares an electron with the oxygen. The oxygen is more electronegative so, it pulls the electron towards it, and gains a partial negative charge and the hydrogen gains a partial positive charge. The partial positive charge of hydrogen in one molecule attracts the partial negative charge in other molecule and forms inter molecule hydrogen bonding.
