Thyroxine and adrenalin are examples of hormones which control

Thyroxine and adrenalin are hormones that play a role in controlling certain bodily functions. These hormones are involved in regulating the body's metabolic rate, which is the speed at which the body uses energy. Thyroxine is produced by the thyroid gland and helps to control the rate at which the body burns calories and uses oxygen. Adrenalin is produced by the adrenal glands and is involved in the body's "fight or flight" response to stress.

In this question, you are asked to identify what these hormones control. The correct answer is that they control "behavioural patterns." This refers to the way in which these hormones can affect a person's mood, energy levels, and ability to respond to stress. For example, when adrenalin is released in response to a perceived threat, it can increase heart rate, breathing rate, and blood pressure, preparing the body to either fight or flee the danger.

It is important to note that while hormones like thyroxine and adrenalin can influence behaviour and mood, they are not the only factors that determine these things. Other factors, such as genetics, environmental factors, and personal experiences, also play a role. Nonetheless, understanding the role of hormones in controlling the body's functions is an important aspect of studying biology.