Which of the following are susceptible ot extinction due to small population and low repropductive rate ?

Options

A. Rhinoceros and Lion
B. Bald Eagle and Bengal Tiger
C. giant Panda and Blue Whale
D. Whooping crane and Blue Whale

Answer

To determine which species are susceptible to extinction due to small population sizes and low reproductive rates, we can follow these steps:

### Step 1: Understand the Criteria for Susceptibility to Extinction
- Species that have small populations and low reproductive rates are more vulnerable to extinction. This is because they cannot recover quickly from population declines and are more affected by environmental changes.

### Step 2: Analyze the Options Given
- Look at the species listed in the options. Identify their population sizes and reproductive rates.

### Step 3: Identify the Species with Low Reproductive Rates
- The Giant Panda has a very low reproductive rate, with females only being receptive for a few days each year and typically giving birth to one cub, sometimes two, but often only one is raised.
- The Blue Whale also has a low reproductive rate, with a gestation period of 10 to 11 months and reproducing only once every 2 to 3 years.

### Step 4: Confirm the Impact of Small Population Sizes
- Both the Giant Panda and Blue Whale have small populations due to habitat loss, human activities, and other environmental pressures. This makes them more susceptible to extinction.

### Step 5: Conclude the Answer
- Based on the analysis, the species that are susceptible to extinction due to small population sizes and low reproductive rates are **C) Giant Panda and Blue Whale**.

### Summary of the Solution
The correct answer is option C, which includes the Giant Panda and Blue Whale, as both species have low reproductive rates and small populations, making them vulnerable to extinction.

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