Which of the following cell organelles liberate heat for the maintenance of constant body temperature in birds and mammals?

Options

A. Lysosomes
B. Ribosomes
C. Endoplasmic reticulum
D. Mitochondria

Explanation

To answer the question about which cell organelles liberate heat for the maintenance of constant body temperature in birds and mammals, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: The question is asking which cell organelles are responsible for liberating heat that helps maintain a constant body temperature in birds and mammals.

2. **Identify the Options**: The options given are:
- A) Lysosomes
...