The health profiles of preagricultural humans were likely worse than those of many modern humans.  True  False

Q: What is often true of a population of organisms with a type III suvivorship curve? O they produce…

A: A survivorship curve is a graph showing the number or proportion of individuals surviving to each…

Q: TAIL LENGTH NUMBER OF MICE

A: Introduction: Directional selection When an extreme phenotype is preferred over the mean trait, this…

Q: e Arizona Forest occupies 87,174,334,009 sq. miles land that cater different kinds of species. One…

A: A population may be a cluster of people of an equivalent species living within the same region and…

Q: In an insect with an early-loss survivorship curve most individuals die soon after they hatch most…

A: Survivorship curve describe the pattern of the number of individuals born and number of individuals…

Q: Using “weights of fish” as an example, explain how data can be collected in both qualitative and…

A: Quantitative data are data which can be counted or compared on a numeric scale. It helps us answer…

Q: What is the key characteristic of a population exhibiting a type Il survivorship curve? large…

A: Survival curve represents the no of organism in a populations survive with respect to their age.…

Q: In pygmy grasshoppers individuals are highly variable in coloration.  They live on gravel at the…

A: One of the key mechanisms driving evolution is what's known as natural selection. This is the…

Q: = is often true of a population of organisms with a type Il suvivorship curve? hey produce few…

A: A type II survivorship curve shows a roughly constant mortality rate for the species through its…

Q: African elephants are threatened by poachers, who kill the elephants for their tusks. Both male and…

A: The tusks in elephants evolve from its teeth and that provided elephants with evolutionary…

Q: When there are no limits to population growth, rmax represents which of the following?     maximum…

A: There are three components of change - births, deaths and migration. Populations grow or shrink…

Q: Generally speaking, you would expect the density of a population of mice to be less than the density…

A: Population Density is defined as the number of populations in a particular area at a given time. It…

Q: According to Zahavi's Handicap hypothesis, females select for males with seemingly negative…

A: Zahavi first used the word ‘handicap’ to refer to the male secondary sexual signals which attract…

Q: An animal has a choice between two food patches. It can choose A, which has more individuals and…

A: In general, animal behaviors arise from an interaction between the animal’s physiology and its…

Q: Look at figure 1 in the passage. Which of the following relationships is BEST shown by the data? The…

A: Adelies Penguin species is found along the coast of Antarctica continent. They are adapted for…

Q: About seven years ago, a group of 13 female and 4 male snowshoe hares were introduced to Granite…

A: A community is a group of people who live in a specific place together. Population ecology is…

Q: Which of the following is NOT true about the salmon life cycle? Group of answer choices Salmon need…

A: Salmon fish is considered anadromous or those that can live in both fresh as well as seawater. These…

Q: The three key themes of Pacific salmon biology are anadromy, philopatry (homing), and semelparity.…

A: The Chinook salmon is the largest species of Pacific salmon as well as the largest in the genus…

Q: Manzanita comes in a large variety of species and forms. Which statement is true? each chaparral…

A: Manzanita is a type of plant that belongs to the genus Arctostaphylos. These plants are native to…

Q: What would happen to the fox population if most of the mice died from disease? the foxes would…

A: Animal interaction  Interaction of different kinds of animals depends upon theirs nature. There are…

Q: The effective population size of the nematode Caenorhabditis brenneri was estimated to be 15,200,000…

A: Introduction :- A nematode, often known as a roundworm, is a worm belonging to the phylum Nematoda.…

Q: 1 2 3

A: Step 1 The theory of natural selection is a theory proposed by Charles Robert Darwin which states…

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: Having a post-reproductive stage in the life cycle is unique to: Group of answer choices all…

A: A species is supposed to have a post-reproductive stage if a female of the adult population expects…

Q: About 70 years ago, cane toads were introduced to Australia. The toads are toxic to some species of…

A: Cane toads are highly toxic to some species of snakes. Since the arrival of cane toads, the…

Q: In this task, you will assume the role of a wildlife biologist that must decide if reintroduction of…

A: Since you have posted a question with multiple sub-parts, we will solve the first three subparts for…

Q: A male lion in Kenya generates more money through ecotourism than if killed for its skin.  True…

A: Ecotourism is a type of tour or travel in which travellers enter the natural habitat of the wild…

Q: In an iteroparous species lifetime fitness is maximized at investment, while in semelparous species…

A: Iteroparous * These are the species or organisms that can reproduce multiple many times. They…

Q: Predators never drive their prey extinct, because then they would go extinct themselves.  True…

A: Predators eliminate weak prey, like the old, injured, debilitated, or exceptionally young, leaving…

Q: n 1-2 sentences for each ecological change and in your own words, explain any two of the four ways…

A: Salmon name is given to species of ray finned fishes that belongs to the family salmonidae.

Q: Write the definition of the following terms: 1. Life history traits 2. Trade-off

A: Life history Traits are heritable to some extent and are subjected to natural selection. This…

Q: Which of the following is a density-independent factor limiting population growth in humans?…

A: In ecology, maintenance of growth and distribution is very important for stability of ecosystem.…

Q: Tertiary carnivores like lions can eat other carnivores. Group of answer choices True False

A: Introduction  In ecosystem,  functional role is played by- Producers  Herbivore/ primary consumers…

Q: The world population reached seven billion in 2011. At current growth rate, it is expected to reach…

A: According to one of the reports that was submitted in in year 2017, about 8o to 84 million people…

Q: What is often true of a population of organisms with a type II suvivorship curve? they produce few…

A: The survivorship curves are used by ecologists to visualize the decline in the number of individuals…

Q: Several studies concluded that there is great heterogeneity in biting frequency, meaning that some…

A: Variation in organismal traits has fuelled decades of ecological studies which have the agenda to…

Q: Regions of NSW were recently impacted by increased populations of mice. Mice first reproduce from…

A: Warfarin is a drug used in chemical warfare during world war 2. This drug acts as anticoagulant and…

Q: Most species produce more offspring than can survive in the environment due to limited resources. O…

A: In nature, reproduction is the process of production of new offsprings from their parents. Organisms…

Q: In Kenya, the Sheldrick Elephant orphanage takes care of elephants that have lost their herd as a…

A: A population is a changing entity. Population growth refers to the change in the number of…

Q: Pronghorns look very similar to antelopes and are considered the fastest mammal in North America.…

A: The answer to your question is given in the image below. Kindly refer to the image.

Q: Direction: Analyze the situation and tell what limiting factor is being described. Choose in the box…

A: Type of limiting factors :-

Q: The Arizona Forest occupies 87,174,334,009 sq. miles land that cater different kinds of species. One…

A: Crude birth rate is the ratio in which the numerator is number of live births in a population in a…

Q: What is often true of a population of organisms with a type II suvivorship curve? they produce few…

A: A survivorship curve is a graph showing the number or proportion of individuals surviving to each…

Q: Which compares to the age structure of less developed and higher developed countries, specifying the…

A: A population is a changing entity. Population growth refers to the change in the number of…

Q: In 2010, 150 coyotes (Canis latrans) were counted in Pierce County, WA. The population was surveyed…

A: The formula that can be used to calculate the rate of population growth is as follows: Gr=Nt Here, N…

Q: Which population of frogs is likely to have more changes after many generations

A: Natural selection process aims to eliminate those species that donot change or adapt to the changing…

Q: -2 50 44 14 2 39 39 39 39

A: Survival curve tells about the probability of  occurrence of any event in given time. This curve…

Q: What will likely happen to the rat population if the grasshopper population decreases

A: In the ecosystem all the species are interconnected. All the species which are dependent for their…

Q: prefix ‘re’ means ‘again’ in the words redesign, reinvent and revamp. Select one: True False

A: Prefix is the term which is positioned before the word which changes the meaning of the words with…

Q: In Kenya, the Sheldrick Elephant orphanage takes care of elephants that have lost their herd as a…

A: The population is defined as the number of individuals of a species living in a particular area. The…

Q: In Kenya, the Sheldrick Elephant orphanage takes care of elephants that have lost their herd as a…

A: A population is a changing entity. Population growth refers to the change in the number of…

Nutrition and diet

We are involved in several daily activities. These actions need a significant quantity of energy. The food we eat provides this energy. Food is necessary for development, repair, and other living activities since it supplies energy. All of these are part of the living practice known as nutrition. Nutrition is the study of nutrients in food, how the body uses them, and the relationship between diet, health, and disease. Nutritionists employ concepts from molecular biology, biochemistry, and genetics to understand how nutrients affect the human body. Nutrition also looks at how people can use their diet to reduce their risk of disease, as well as what happens when they ingest too much or too little of a nutrient and how allergies emerge.