Biology Chapter on Evolution and Genetics

<p>The increase in beak size in a population of birds during a period of drought. (B)</p> Signup and view all the answers

<p>Meiosis results in the formation of four non-identical cells, while mitosis results in two identical cells. (C)</p> Signup and view all the answers

<p>Genotype (A)</p> Signup and view all the answers

<p>A random change in allele frequencies due to chance events, especially in small populations. (C)</p> Signup and view all the answers

<p>A species that has a disproportionate impact on its ecosystem relative to its abundance. (B)</p> Signup and view all the answers

<p>The percentage of a population that survives at different ages. (C)</p> Signup and view all the answers

<p>High reproduction rate and short lifespan (B)</p> Signup and view all the answers

<p>Speciation that occurs without geographic isolation, often due to reproductive barriers. (A)</p> Signup and view all the answers

<p>The common ancestor of the organisms depicted. (A)</p> Signup and view all the answers

<p>Proximate causes refer to the immediate triggers of behavior, while ultimate causes refer to the evolutionary reasons for behavior. (B)</p> Signup and view all the answers

<p>A dog learning to sit on command. (B)</p> Signup and view all the answers

<p>A waxy cuticle to prevent water loss. (D)</p> Signup and view all the answers

<p>Growth that occurs in the roots and stems through the elongation of cells. (A)</p> Signup and view all the answers

<p>It absorbs sunlight and uses it to convert carbon dioxide and water into glucose. (D)</p> Signup and view all the answers

Mutation is the primary way genetic diversity increases in a population by creating new alleles.

Artificial selection is guided by humans, while natural selection happens without human intervention.

A structure that has lost its original function over time.

An increase in beak size in birds during a drought.

Meiosis creates four non-identical cells, while mitosis creates two identical cells.

An organism's complete set of genes.

A random change in allele frequencies due to chance events, particularly in small populations.

A species whose impact on its ecosystem is disproportionately large relative to its abundance.

Species that have a high reproduction rate and short lifespan.

A graph showing the percentage of a population surviving at different ages.

Speciation occurring without geographic isolation, often due to reproductive barriers

In a cladogram, a node represents the common ancestor of the organisms depicted.

The immediate triggers of a behavior.

The evolutionary reasons for a behavior.

Behaviors acquired through experience or observation.

A layer covering the leaves of plants to prevent water loss.

Growth in plant roots and stems through cell elongation.

A pigment that absorbs sunlight to power photosynthesis.