What Are Hypotheses as to the Reasons That Brains in the Genus

question 58

Multiple Choice

What are hypotheses as to the reasons that brains in the genus homo have enlarged so substantially?

• A) The ability to use fire to cook decreased the available nutrients
• B) Intraspecific competition drove increases in brain size related to social behaviors
• C) The size of individuals in the homo genus has increased substantially over time
• D) all of the above

---

Definitions:

Age of Reproduction

The period in the life cycle of an organism when it becomes capable of reproducing sexually.

Offspring

The biological children or young produced by an organism, either through sexual or asexual reproduction.

Symbiotic Relationships

Close interactions between species that live together, often mutually beneficial, but can also include parasitic and commensal relationships.

Parasitism

Symbiotic relationship in which one species (the parasite) benefits in terms of growth and reproduction, to the detriment of the other species (the host).