Question

reading nature- guppies cer
guiding question: what selective pressures might affect the persistence of traits over time?
claim:
selective pressures such as ____, __, and ____ might affect the persistence of traits over time.
evidence:
this is a great space to put your answers to our discussion questions.

1. peppered moths: camouflage from predators.

black - bellied seedcracker birds: beak size matches food to access food efficiently.
papua new guinea male birds: bright feathers attract mates and signal fitness.

1. natural selection in the process where heritable traits that increase an organism’s survival and reproductive success in its environment become more common in a population over generations, as individuals with these traits are more likely to survive, reproduce, and pass on the traits.
2. sexual selection, predation, intrasexual.

justification:
explain why you included the evidence that you did and how it supports your claim.

Explanation:

To answer the guiding question about selective pressures affecting trait persistence, we analyze the evidence:

Claim:

Selective pressures such as predation, resource availability (food access), and sexual selection might affect the persistence of traits over time.

Evidence & Justification:

1. Predation (e.g., peppered moths): Camouflage helps moths avoid predators. Traits that reduce predation risk (like camouflage) persist because individuals with these traits survive to reproduce.
2. Resource Availability (e.g., black - bellied seedcracker birds): Beak size matching food sources allows efficient feeding. Traits that improve resource access (e.g., beak shape) persist as they enhance survival and reproduction.
3. Sexual Selection (e.g., Papua New Guinea male birds): Bright feathers attract mates and signal fitness. Traits favored by sexual selection (e.g., colorful plumage) persist because they increase reproductive success.

Final Answer (for the Claim blank):

Selective pressures such as $\boldsymbol{\text{predation}}$, $\boldsymbol{\text{resource availability (food access)}}$, and $\boldsymbol{\text{sexual selection}}$ might affect the persistence of traits over time.

Answer:

To answer the guiding question about selective pressures affecting trait persistence, we analyze the evidence:

Claim:

Selective pressures such as predation, resource availability (food access), and sexual selection might affect the persistence of traits over time.

Evidence & Justification:

1. Predation (e.g., peppered moths): Camouflage helps moths avoid predators. Traits that reduce predation risk (like camouflage) persist because individuals with these traits survive to reproduce.
2. Resource Availability (e.g., black - bellied seedcracker birds): Beak size matching food sources allows efficient feeding. Traits that improve resource access (e.g., beak shape) persist as they enhance survival and reproduction.
3. Sexual Selection (e.g., Papua New Guinea male birds): Bright feathers attract mates and signal fitness. Traits favored by sexual selection (e.g., colorful plumage) persist because they increase reproductive success.

Final Answer (for the Claim blank):

Selective pressures such as $\boldsymbol{\text{predation}}$, $\boldsymbol{\text{resource availability (food access)}}$, and $\boldsymbol{\text{sexual selection}}$ might affect the persistence of traits over time.