Explanation

Yellow cytoplasm in Ascidian cells gives rise to muscle cells. 

In ascidians, a type of marine invertebrate, the yellow cytoplasm is a distinct region of the fertilized egg that contains specific molecules responsible for muscle development.

Cells that inherit this yellow cytoplasm during cell division will differentiate into muscle cells.

This is why the correct answer is c. Muscle cell. 

Explanation

 A dilute solution compared to cell concentration is termed hypotonic

This means the solution has a lower concentration of solutes (and a higher concentration of water) than the cell's internal environment. 

Explanation

The function to give a message to effectors is b. Negative feedback. 

Negative feedback: In a negative feedback loop, a sensor detects a change in a controlled variable (like temperature) and sends a signal to a control center (like the hypothalamus).

The control center then sends a signal to an effector (like a sweat gland or muscle) to bring the variable back to its set point. Essentially, the effector's response is opposite to the initial change. 

Explanation

Gastrin is a digestive hormone secreted by G-cells in the pyloric region of the stomach.

It stimulates the secretion of gastric acid (HCl), aiding in the digestion of food.

Explanation

Explanation

Explanation

"Calamity آفت " means a great misfortune or disaster آفت

Explanation

 To "grind your teeth in disgust" usually indicates a strong feeling of loathing or intense dislike,

Explanation

The film was so good, I couldn't believe it.

Main clause: The film was so good → Describes the film.

Result clause: I couldn't believe it → Shows the speaker's strong reaction.

Explanation

 The baby is sleeping peacefully:

"Peacefully" is an adverb that correctly modifies the verb "sleeping," describing how the baby is sleeping.