Explanation

Peptide Bond Hydrolysis: Each peptide bond (linking two amino acids) requires 1 water molecule to break.

4-Amino Acid Chain: A tetrapeptide has 3 peptide bonds, thus needing 3 water molecules for complete hydrolysis.

Example:

Ala-Gly-Val-Ser (4 amino acids) → Broken into 4 separate amino acids using 3 H₂O molecules.

Explanation

An airplane's wings are shaped to push air downward, which creates an upward force called lift.

This lift balances the force of gravity, allowing the plane to stay in the air.

Explanation

Similar cells, like liver cells, group together to form tissue that performs a specific function.

Liver tissue then combines with others to make the liver organ.

• A group of similar cells that perform a specific function combine to form tissue.
• Tissues then combine to form organs.
• Organs work together to form systems.

Explanation

HTTPS stands for HyperText Transfer Protocol Secure — it encrypts data for secure web browsing.

It uses SSL/TLS protocols to protect information from being intercepted or tampered with.

Explanation

The article "a" before "child" is incorrect here because it's referring to his daughter, a specific person already mentioned.

Correct sentence: My friend has a sweet daughter, but the child often remains sick.

Explanation

An IP address is a unique numerical label assigned to each device connected to a network.

It helps in identifying and locating devices for communication over the Internet or local networks.

Explanation

SSDs have no moving parts, making them faster, quieter, and more shock-resistant than HDDs.

They offer quicker data access and better performance for tasks like booting and file transfer.

Explanation

"Beautiful" describes the noun "flower," so it is the adjective.

"This" is a determiner; "very" is an adverb.

Explanation

Explanation

Given the points (x + 5, 8) and (9, y - 6) are equal, we can set up the equations:

x + 5 = 9 ... (1)

8 = y - 6 ... (2)

Solving (1):

x = 9 - 5

x = 4

Solving (2):

y = 8 + 6

y = 14

The values of x and y are x = 4 and y = 14.