« previous next »

Author Question: In a hypothetical environment, fishes called pike-cichlids are visual predators (Read 1167 times)

hummingbird

  • Sr. Member
  • ****
  • Posts: 324
on: Jul 7, 2013
 In a hypothetical environment, fishes called pike-cichlids are visual predators of algae-eating fish (in other words, they locate their prey by sight). If a population of algae-eaters experiences predation pressure from pike-cichlids, which of the following is least likely to be observed in the algae-eater population over the course of many generations?
A) selection for drab coloration of the algae-eaters
B) selection for nocturnal algae-eaters (active only at night)
C) selection for larger female algae-eaters, bearing broods composed of more, and larger, young
D) selection for algae-eaters that become sexually mature at smaller overall body sizes
E) selection for algae-eaters that are faster swimmers


Celeste

  • Hero Member
  • Posts: 588
Reply #1 on: Jun 19, 2019
C


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.

Did you know?

Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.

Did you know?

Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.

Did you know?

Asthma-like symptoms were first recorded about 3,500 years ago in Egypt. The first manuscript specifically written about asthma was in the year 1190, describing a condition characterized by sudden breathlessness. The treatments listed in this manuscript include chicken soup, herbs, and sexual abstinence.

Did you know?

Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.

Cataract extraction. The procedure involves a surgical removal of a cataract lens and its replacemen Cataract extraction. The procedure involves a surgical removal of a cataract lens and its replacemen
How lenses correct visual problems: (A) emmetropia; (B) myopia; (C) hyperopia; (D) corrected myopia; ... How lenses correct visual problems: (A) emmetropia; (B) myopia; (C) hyperopia; (D) corrected myopia; ...
Detonation is a secondary ignition of the air–fuel mixture. It is also called spark knock or ... Detonation is a secondary ignition of the air–fuel mixture. It is also called spark knock or ...
Some ignition coils are electrically connected, called married (top figure), whereas others use ... Some ignition coils are electrically connected, called married (top figure), whereas others use ...
A Gaucher cell showing accumulated fat stored in structures called lysosomes A Gaucher cell showing accumulated fat stored in structures called lysosomes
A lesion called a plaque in the brain of an individual with Alzheimer disease. A ring of degeneratin A lesion called a plaque in the brain of an individual with Alzheimer disease. A ring of degeneratin
Video: Net filtration pressure and lymph formation, edema & blood velocity

For a complete list of videos, visit our video library