Streams Preferentially Erode ________ and ________ Valleys Where Rock Is

question 80

Multiple Choice

Streams preferentially erode ________ and ________ valleys where rock is most easily eroded.

• A) deep, wide
• B) deep, narrow
• C) shallow, wide
• D) shallow, narrow

---

Definitions:

Offspring Investment

The amount of resources (time, energy, food) an organism expends on the care and development of its young.

Mother Hypothesis

A theory suggesting that certain behaviors or traits in females, including those influencing fertility and offspring survival, have evolved due to maternal investment and efforts to ensure the propagation of genes.

Grandmother Hypotheses

A theory suggesting the evolutionary advantage of post-reproductive lifespan, where grandmothers aid in the survival of their grandchildren.

Menopause

The natural cessation of menstruation that typically occurs in women in middle to late adulthood, marking the end of reproductive capacity.