2 Scientists investigated the effect of an antibiotic on three strains of bacteria (MRSA, VRE and FORP) in a laboratory, under controlled conditions. The results are shown in the table below:

This question asks for two ways early horse ancestors were poorly adapted to outrun predators. Early horses like Hyracotherium were small, forest-dwelling animals with multiple toes.

• They had multiple toes instead of a single hoof, which was less efficient for running on hard, open ground.
• They were small and had short legs, which limited their speed and stride length compared to modern horses.

This question asks about the habitat change that led to horse evolution. The evolution of horses is closely linked to a major environmental shift.
The habitat changed from $\boxed{\text{dense forests to open grasslands}}$.

This question asks for the scientist whose theory explains the development of hooves and long legs in horses. These adaptations are a result of natural selection favoring traits that improve survival in a changing environment.
The scientist is $\boxed{\text{Charles Darwin}}$.

The image provides the introductory text for Question 3.2 and a table showing antibiotic resistance data. However, the specific questions related to this data (e.g., "Describe the trend...", "Calculate the increase...") are not visible in the image. Therefore, I cannot provide an answer for Question 3.2.