Which of the following describes a relationship of predator prey?
The correct answer would be A polar bear catches a seal for dinner. Predator-prey is an ecological relationship between organisms in which one organism kills or hunts the other organism and eats it for nutrition.
Which of the following describes a relationship of mutualism?
Mutualism is defined as a relationship between organisms in which both the individuals involved are benefitted from each other. In this way, both these organisms are involved in a mutualistic relationship.
Which situation describes parasitism Brainly?
Ticks live on and drink blood from a cow. This is an example of parasitism, where the ticks (parasite) are living off of the blood of the cow, the host animal. Explanation: Parasitism is a relationship between organisms.
Which of the following describes the relationship of parasitism?
Explanation: Parasitism: A biological relationship in which one organism benefits and the other organism is harmed.
Which group will have the largest number of individuals in a given area?
Is the number of individuals per unit area?
2. Population density is the number of individuals per unit area.
What is the number of individuals in a specific area?
The statistical study of populations and how they change over time is called demography. Two important measures of a population are population size, the number of individuals, and population density, the number of individuals per unit area or volume.
What is the number of individuals per unit area called?
Population size is the number of individuals in a population. Population density is the average number of individuals per unit of area or volume.
What are the phases of logistic growth?
The four phases of such growth (Initiation/Birth, Acceleration/Growth, Deceleration/Maturing, Saturation) can be seen in the logistic growth curve at right. GP (growth point), IP (inflection point) and SP (saturation point) are points on the curve after which careful observers can notice growth conditions have changed.
How organisms are arranged within an area?
how organisms are arranged within an area; sometimes called population dispersion. the relative number of organisms of each age within a population; also called age distribution. a chart that shows the age distribution of a population; also called age pyramid.
Which is the best example of a closed system?
Earth can be considered as a closed system, since it only receives sunlight (energy), while the overall mass stays constant, without (almost) any exchange from space. Another example of a closed system is a saucepan or frying pan, on a stove, when its lid is closed.
Which is the smallest ecological level?
Organism. It is the lowest level of organization, which includes both unicellular and multicellular organisms. All the living species in this level exhibits all the characteristics required for the existence of life.
What is the difference between a Type I and Type III survivorship curve?
Individuals with Type I survivorship exhibit high survivorship throughout their life cycle. Populations with Type II survivorship have a constant proportion of individuals dying over time. Populations with Type III survivorship have very high mortality at young ages.
What is Type 3 survivorship curve?
In survivorship curve. The Type III curve, characteristic of small mammals, fishes, and invertebrates, is the opposite: it describes organisms with a high death rate (or low survivorship rate) immediately following birth.
What is a Type 1 curve?
Type I or convex curves are characterized by high age-specific survival probability in early and middle life, followed by a rapid decline in survival in later life. They are typical of species that produce few offspring but care for them well, including humans and many other large mammals.
What are the 3 types of survivorship?
There are three types of survivorship curves. Type I curves depict individuals that have a high probability of surviving to adulthood. Type II curves depict individuals whose chance of survival is independent of age. Type III curves depict individuals that mostly die in the early stages of their life.
How do you calculate a survivorship curve?
Of this group, or cohort, only a certain number of individuals will reach each age, and there is an age above which no individuals ever survive. Plotting the number of those members of the group that are still alive at each age results in a survivorship curve for the population.
What animal has a Type 2 survivorship curve?
life tables …any age, shown by the Type II survivorship curve, is evident as a straight line with a constant slope that decreases over time toward zero. Certain lizards, perching birds, and rodents exhibit this type of survivorship curve.
What type of survivorship curve do sea turtles have?
However, the current litera- ture on turtle survivorship (see Appendix) suggests that turtles are better characterized by a type I11 survivorship curve (Table 1, Fig. l), with mortality rates inversely related to age.
What is an R strategist?
R-selected species, also called r-strategist, species whose populations are governed by their biotic potential (maximum reproductive capacity, r). Wilson; K-selected species—that is, species whose population sizes fluctuate at or near their carrying capacity (K)—make up the second strategy.
Are humans R or K strategists?
Both across and within species, r and K strategists differ in a suite of correlated characteristics. Humans are the most K of all. K’s supposedly have a longer gestation period, a higher birthweight, a more delayed sexual maturation, a lower sex drive, and a longer life.
What animals are r strategists?
Typical examples of r-species are mice, rabbits, weeds and bacteria, which have a lot of offspring, but a short life expectancy. Examples of organisms undergoing K-selection are tortoises, elephants, people, and sequoia trees: their offspring are few but long-lived.