Barrel cactuses live in the Mexican desert. They are covered in sharp spines. Cactuses can have spines of different lengths. 1. Their sharp spines help protect them from being eaten by bighorn sheep. Cactuses with longer spines are less likely to be eaten by the sheep. The diagrams below show three possible cactus populations. Population 1 游 short Population 2 short 業業 long Population 3 業業業 long, If their environment changes to have many bighorn sheep. which of the following cactus populations will most likely survive?

Barrel cactuses live in the Mexican desert. They are covered in sharp spines. Cactuses can have spines of different lengths. 1. Their sharp spines help protect them from being eaten by bighorn sheep. Cactuses with longer spines are less likely to be eaten by the sheep. The diagrams below show three possible cactus populations. Population 1 游 short Population 2 short 業業 long Population 3 業業業 long, If their environment changes to have many bighorn sheep. which of the following cactus populations will most likely survive?

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter45: Population And Community Ecology

Section: Chapter Questions

Problem 3VCQ: Figure 45.16 Age structure diagrams for rapidly growing, slow growing, and stable populations are...

See similar textbooks

Similar questions

What is a cline? A. A gradual change in genetic or phenotypic characteristics of a population within a set geographic space. B. A gradual change in genetic or phenotypic characteristics of a population over geographic space. C. Similar genetic or phenotypic characteristics of a population within the same geographic space. D. Discrete changes in genetic or phenotypic characteristics of a population over geographic space.
A meadow is home to a population of plants of a particular species. Among these individuals are 125 plants that have red flowers and 375 plants that have white flowers. The allele of the flower color gene that produces red flowers (R) is completely dominant over the white flower color allele (r). What is the frequency of the dominant R allele in this population? a- 0.75 b- 0.87 c- 0.13 d- 0.25
would the heritability of human height in native Hawaiians different from the height of Lithuanians? 1) no since both of them are in different racial groups 2) yes since the genetic diversity and the environment influences are different in both groups 3) yes, the sample size in the study is not the same 4) no because heritability is homogenous across all subpopulations.
A meadow is home to a population of plants of a particular species. Among these individuals are 125 plants that have red flowers and 375 plants that have white flowers. The allele of the flower color gene that produces red flowers (R) is completely dominant over the white flower color allele (r). What is the total number of flower color alleles in this population of plants? a- 500 b- 2 c- 375 d- 1,000 e- 4
You are studying a population of mulberry plants. The average mulberry produces 55 leaves, but an insect herbivore preferentially kills plants with more leaves, and therefore the remaining population has an average of 35 leaves after the insects kill certain plants due to the herbivory. The heritability of leaf number is 0.75. What is the response to the selection imposed by the insect herbivores? a. -10 leaves b. -20 leaves c. -15 leaves d. -5 leaves
Miss L is bored in the summer, so she wants to estimate the population of weeds on her property. The property measures 20 m x 20 m. She randomly places ten 1 m x 1 m quadrats on her property as shown in the diagram below. What is the estimated population size? Only write the numerical value.
A meadow is home to a population of plants of a particular species. Among these individuals are 125 plants that have red flowers and 375 plants that have white flowers. The allele of the flower color gene that produces red flowers (R) is completely dominant over the white flower color allele (r). In this population of plants, approximately how many copies of the r allele are there? Group of answer choices a. 750 b. 230 c. 20 d. 130 e. 870
What method would you use to estimate the size of the following populations a. Canada Geese b. Bacteria in a petri dish c. Jaguars that are rarely seen d. Dandelion weeds in a lawn e. Butterflies
In a population of mayflies, variation in the STRIPE gene causes different body coloration. SS individuals have skinny stripes, Ss individuals have wide stripes, and ss individuals are unassigned. You collect some mayflies and estimate that the frequency of the S allele is 0.85. You want to know whether the population is evolving, so you will return to the same site next summer and collect 1000 mayflies from the next generation. If the population is not evolving, how many of the 1000 mayflies collected next summer should have wide stripes. (round to the nearest whole number) A. 255 b.850 C. 723 D. 23
1. The diagram shows the population curve (y-axis) vs time (x-axis). Which line/curve best describes the theory of natural selection of Charles Darwin? 2. The diagram shows the population curve (y-axis) vs time (x-axis). Which curve represents the scenario described by Thomas Malthus "the populations with unlimited natural resources grow very rapidly, after which population growth decreases as resources become depleted". 3. The diagram shows the population curve (y-axis) vs time (x-axis). Which curve best represents the growth of bacteria? 4. The diagram shows the population curve (y-axis) vs time (x-axis). Which line/curve acts as a moderating force in the growth rate by slowing it when resources become limited and stopping growth once it has been reached.
The neighborhood of a lake has a population of snails, which come out onto the sidewalk when the sprinklers come on, and the rest of the time they hide in the vegetation. If you catch 20, and mark them and, then, a week later, after they have had a chance to disperse into the population, you catch 15, and 6 have marks on them, what is the estimated size of the population?
Which of the following situations could decrease the average fitness of a population? Question 9 options: Snakes in a small and isolated populations must breed with blood-relatives. A sudden forest fire kills 95% of a population of minks, leaving behind the remaining 5% to repopulate the area. Seeds dispersed by wind arrive on an island, germinate and begin breeding with the existing island population. Atlantic salmons adapted to live in captivity escape from a fish farm and breed with wild stocks. All are the listed situations could lead to a decrease in average fitness