A scientist constructs a graph to show the age structure of the human population of Country Y. The graph is shown here. Age Structure of the Human Population, Country Y I Male Female 100+ 95-99 90-94 85-89 80-84 75-79 70-74 65-69 60-64 49 40-44 35-39 25-29 20-24 20% 10% 0% 10% 20% What conclusion is supported by the graph?
Q: You are an ecologist studying movement behavior of a bird population. You attach radio-transmitters…
A: In a population with limited amount of resources and the population shoots over its carrying…
Q: Given that fertility rate is defined as each woman producing exactly enough offspring to replace…
A: Introduction: Total fertility rate is a criteria that describes the average number of offspring born…
Q: Geometric growth refers to the growth of populations that do not have overlap in their generations.…
A: Geometric growth is the growth in which the successive changes in a population differ by a constant…
Q: Using the above graph, what is the approximate percent of the population in the US and Kenya that is…
A: In ecology, the population is defined as the total number of individuals of a particular species…
Q: Which of the following scenarios best exemplifies the bottleneck effect? Group of answer choices 1.…
A: Introduction A Population Bottleneck, Or Genetic Bottleneck, Occurs When A Population's Size Is…
Q: Use the graph to answer Questions 10-13. Wolf and Moose Populations on Isle Royale 60 -2400 50 2000…
A: The relationship of predator and prey refer to the interaction between the two species when one…
Q: What is the average age of an individual in this population? Your answer should be written to one…
A: The average age can be calculated by the simple mathematics formula average age =sum of…
Q: Based on the graph below, which of the following pieces of evidence best supports the claim, "The…
A: Introduction :- The increase in the number of persons on Earth is referred to as population growth.…
Q: Which set of values for the intrinsic rate of increase, finite rate of increase, and net…
A: Since you have asked multiple question, we will solve the first question for you. If youwant any…
Q: key factors that led to the changes in the birth rate and death rates as a country goes through the…
A:
Q: Two stable populations employ the same fertility schedule, but different mortality schedule. In both…
A: Note- The information provided in the question is not sufficient enough to answer the question. Few…
Q: A hypothethical population of 10,000 humans has 6,840 individuals with the blood type AA, 2,860…
A: Given that, AA individuals are= 6840 AB individuals are= 2860 BB individuals are= 300 Total=10000
Q: In the exponential model, starting with 10 individuals and r= 2, what will my population size look…
A: The population is a group of individuals of the same species that are present in a particular…
Q: Identify the demographic transition stage for a country that has an age structure consisting of a…
A: Demographic : It is the statistical characteristics of human population or related to the structure…
Q: In a certain population of rabbits, 25 new rabbits are born and five move into the population from…
A: BASIC INFORMATION POPULATION GROWTH The size of any species in a population is not a static…
Q: Generation 1 2 3 4 5 Determining Allele and Genotype Frequencies Number of Happy Bears 30 20 15 9 4…
A: Given: Two alleles in the population: The happy trait is recessive. The sad trait is dominant.
Q: What is the fundamental reason human populations have been able to increase exponentially for an…
A: Human technology has continuously increased K is the fundamental reason human populations have been…
Q: D. Column A Column B 1. when the birthrate equals the death rate A. demography 2. the change in a…
A: Population growth is the increase in the number of individuals in a population
Q: A population may pass through changes in age structure without changing in size. Do you agree or…
A: Group of people or organisms belonging to same species living in same geographical area at a time,…
Q: A population of 8000 bison has an annual per capita birth rate of 0.07 and an annual per capita…
A: Introduction A population is the smallest unit of any ecosystem which collectively includes the…
Q: Below is a table that shows the changes in a population of domesticated rabbits. What is the most…
A: The rate of population expansion decreases and ultimately ceases as resources are depleted: this is…
Q: Use the graph to answer the following question. Which survivorship curve most closely models a…
A: Introduction : The above question represents the survivorship curve. It is a graphic representation…
Q: What is an example of population
A: In ecology a population is defined as a group or set of individuals inhabiting an isolated area , of…
Q: Human Population What is the reason for human population growth? What does Demography study? How to…
A: According to estimates, more than 7 billion people live on our planet. Each day, some 200,000 new…
Q: In a graphing paper, construct age structure diagrams for country A and B using the given data…
A: A population is defined as the total number of people who dwell in a certain area. The population of…
Q: If a population has10 individuals with genotype AA, 20 with genotype Aa and 70 with genotype aa,…
A: AA = 10 Aa = 20 aa = 70 Therefore, total number of A in population = 10*2 (AA)+20*1 (Aa)+70*0 (aa) =…
Q: Which of the following rows correctly identifies the life strategy of a population and its type of…
A: Life strategy It can be divided into two; r and k selected strategy. It is related to the selection…
Q: In a population of 5,000 individuals, if r = 0.01, how many more individuals will be added to the…
A: Population growth is defined as the change in the number of individuals of a species in an area over…
Q: The change in population size for Canada in 2015 was an increase of 272 990. In the same year, the…
A: The change in population is calculated as the number of births minus deaths and net migration is the…
Q: Which of the following forces can de-stabilize a population, resulting in a unstable equilibrium?…
A: The earth is full of different types of species of organisms. A species is a group or population of…
Q: Briefly explain how each demographic parameter can affect a population. This can be in terms of…
A: Population is a reproductively interactive group of animals of a single species. A few individuals…
Q: Identify examples of evidence that a population has a size that is density dependent. The number of…
A: Density dependent factors act on a population and exert its effects on that particular population.…
Q: The graph shows how a Serengeti buffalo population changed over a period of years. During this time…
A: Population studies of an ecosystem are very helpful in understanding how the ecosystem works…
Q: The graph below represents the number of individuals in a population of wolves and in a population…
A: The graph is given here above showing the population size of moose and wolf. In which the dotted…
Q: Ecology students are required to do a lab research project, and two students decide to study the…
A: The dependent variable responds to the independent variable. It is called dependent because it…
Q: “Calculate the rates specified below (a to c), using the following information about the black…
A: Mortality rate refers to the ratio between the number of death and the number of people in a…
Q: Examine the age structure diagram. This diagram best represents a population that is: Male Female…
A: Solution. 1st question : This age structure diagram represents a population that is declining…
Q: Directions: On the back of this sheet of paper, make a line graph using the following United Nations…
A: Exponential growth of a population is a form of growth where the population size increases with…
Q: Assuming that the intrinsic rate of growth stays the same as you previously calculated above, how…
A: Given Intrinsic rate (r) = 0.03 squirrels/yr/squirrel Initial population (N) = 150 Carrying…
Q: Snake Population over Time 100 2000 团 2010 80 70 60 50 40 30 20 10 Brawnish green Dark green Light…
A: As we know forest is the basic habitat for many species, here the population of snakes fluctuate…
Q: In 2011, the city of Calgary had 1,096,833 people living within the city limits. Since then, there…
A: Natural sources of population change are births and deaths. The gap between birth and death is…
Q: If births and immigration are greater than death and emigration how will a population change? Group…
A: A Population has different attributes which helps to compare two different populations.
Q: Based on the data below, which of the following statements best describes an effect of population…
A: Population density is defined as the number of individuals found in a particular area.
Q: According to the figure, Nigeria has a population size than Canada, with a proportion of the…
A: The population is the collection of all individuals of the same species that are present in a…
Q: A starting population has 150 animals. During the year, 50 animals are born and 30 die. Ten animals…
A: Population change is the difference in the size of a population between the end and the beginning of…
Q: Some demographers claim that the total world population has already begun to slow, while others…
A: Demographic transition is a long term trend that represents the decrease in birth rate and death…
Q: A type I survivorship curve is characterized by _______________. Question 31 options: A) low infant…
A: For a specific species or group, a survivorship curve is a graph that shows the number or proportion…
Q: young adult individuals, and 10 older adult individuals. This population is likely…? Group of…
A: ▪︎If in a population more young individuals are present as compared to older individuals, population…
Q: Choose which terms belong with which correct definition. Definitions Terms Change in population size…
A: Population growth pyramids are the graphical representation of the different age groups of…
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- Use the passage to answer the question. Animal Population Over Time Provide a hypothesis that explains the reduction over time of certain animal populations and not others. The bar graph represents experimental data collected in a region of northern Canada starting when it was first colonized. The graph Identify which factors explain the presence of the animal populations that identifies trends in animal population over a 100-year period. are present in the community. bear deer horse dog B I UE E 1000 4 5 6 human population (millions) 2 3 7 8 9 Ve MacBook Air 888 a %2# %24 2 3 4 5 6 8 E R Y P D F G K C V B N M command LaLook at the graph below. Grasshopper Population in Grassland - Green Grasshoppers - Brown Grasshoppers 80 60 40 20 Generation 1 Generation 2 Generation 3 Generation 4 Generation 5 After generation 3, explain a possible reason there is a change in the graph. Predict what change has occurred. Edit View Insert Format Tools Table 12pt v Paragraph v BIUWhich of the following pieces of evidence best supports the claim, "The population on Easter Island crashed." Population Growth on Easter Island 10,000 9,000 8,000 7,000 6,000 5,000 4,000 3,000 2,000 1,000 0 400 800 1200 1600 year (CE) The population of Easter Island was approximately 1,000 in 500 CE The population of Easter Island increased from 1,000 to 10,000 in about 1,000 years The population of Easter Island decreased from 10,000 to 9,000 from 1600 CE to 1700 CE. The population of Easter Island decreased from 10,000 to 1,000 from 1600 CE to 1800 CE. population 2000
- In the age structure diagram below, which of the following is true of this 2 points population? 100+ 95-99 90 - 94 85 - 89 80 - 84 75-79 70 - 74 65 69 60 - 64 55 - 59 50 - 54 45 - 49 40 - 44 35 - 39 30-34 25 29 20 - 24 15 19 10 - 14 5-9 0.4 295 236 177 118 59 59 118 177 236 295 Population (in thousands) Age Group Population (in thousands) It is from a developed country. It is stable. It is expanding. It is from a developing country. It is declining. This is a reguired questionUse the graph to answer Questions 10–13. Wolf and Moose Populations on Isle Royale 60 2400 50 2000 40 -1600 30 -1200 20 800 10 -400 1955 1960 1965 1970 1975 1980 1985 1990 1995 Year - Moose --Wolves 10-What happened to the number of wolves on Isle Royale between 1975 and 1985? 11-What happened to the moose population when the number of wolves was low? 12-What is the relationship between the moose and the wolves on Isle Royale? 13-Is the number of moose on the island a density-dependent or density-independent limiting factor for the wolf? Explain your answer. Number of Wolves Number of MooseThe life table below is for a species of lizard. Use it to answer the questions below. It can be copied and pasted in excel or downloaded here. What is the intrinsic rate of increase of this population? nx bx 678 1 102 31 3 19 10 4 14 12 5 12 12 6 10 14 7 10 10 8 8 11 9 7 10 1.89 0.053 O 1.32 0.51
- Use the information and table to answer the following question. An ecologist is studying a population of mosquitos living in a nearby pond. The ecologist estimates the population size twice a day - once at sunrise and once at sunset - for 5 days during the summer when mosquitos are reproducing. Their data is shown. Day 2 3 16 5 Time Sunrise Sunset Sunrise Sunset Sunrise Sunset Sunrise Sunset Sunrise Sunset Population Size (in thousands) 200 189 187 185 167 180 186 Based on the data, what is the estimated carrying capacity for the population and what factor may have led to a change in data at day three?Use the following information to answer the next question. Two populations of birds were studied in a forest that had an area of 100 m2. The density of bird population I was 8 birds/m2. Population II had a density of 12 birds/m2. A scientist noted a few statements in his report. Which of the following statements about the two bird populations is not correct? The study area covered by both Population I and Population II is 10 km?. Population I has 400 more birds than population II. The number of birds in population II is 1200. The number of birds in population I is 800.Look at the graph below. Grasshopper Population in Grassland < Green Grasshoppers- Brown Grasshoppers 80 60 40 20 Generation 1 Generation 2 Generation 3 Generation 4 Generation 5 Explain what is happening in the graph prior to generation 3. Edit View Insert Format Tools Table 12pt v Paragraph BIU Av ev T?v
- Based on the graph below, which of the following pieces of evidence best supports the claim, "The population on Easter Island crashed"? Population Growth on Easter Island 10,000 9,000 8,000 7,000 6,000 5,000 4,000 3,000 2,000 1,000 LLL 0 400 800 1200 1600 2000 year (CE) the population ended up at only 2,000 by the year 2,000 the population of Easter Island increased from 1,000 to 10,000 in about 1,000 years the population of Easter Island decreased from 10,000 to 9,000 from 1600 CE to 1700 CE the population of Easter Island decreased O from 10,000 to 1,000 from 1600 CE to 1800 CE population OAccording to the figure, Nigeria has a population size than Canada, with a proportion of the population at post-reproductive age. Male Female Male Female 100 100 90 90 80 80 70 70 60 60 * 50 2 50 40 40 30 30 20 20 10- 10 1.6 1.2 0.8 0.4 0.4 0.8 1.2 16 16 12 8 12 16 4. Population (millions) Population (millions) (a) Age structure diagram of Canada (b) Age structure diagram of NigeriaUse the information and the image to answer the following question. The bird in the picture feeds on mice. A large forest fire resulted in a layer of ash that darkened the soil in which the mice lived. The illustration shows the distribution of the mice over time. picture which could be a statement about why the color distribution in the mouse population changed over time. Provide evidence to support your claim