1. The effects of disease in a population would be considered density dependent.
True
False
2.You discover a new species of salamander and after watching it through mating season, you determine that females lay between 1000-1500 eggs at a time on average. Based on this information and your knowledge of life history traits, you predict that the species also:
A. has low levels of parental care.
B. has a low risk of mortality at a young age.
C. reaches sexual maturity at a late age.
D. is very long lived.
E. All of the above.
3. According to the logistic growth equation:
the number of individuals added per unit time is greatest when N is close to zero.
the per capita growth rate (r) increases as N approaches K.
population growth is zero when N equals K.
the population grows exponentially when K is small.
the birth rate (b) approaches zero as N approaches K.
![[1 ] . True. . [2 ] All of above. [3] The population k is small. grows exponentially when](http://img.homeworklib.com/questions/2af78430-ec09-11eb-9ad3-c1aa5d96cbf9.png?x-oss-process=image/resize,w_560)
1. The effects of disease in a population would be considered density dependent. True False 2.You...
help please
According to the logistic growth equation: the number of individuals added per unit time is greatest when N is close to zero. the per capita growth rate (r) increases as N approaches K. population growth is zero when Nequals K. the population grows exponentially when Kis small. the birth rate (b) approaches zero as N approaches K.
help out please for number 1 and 2
1.
2.
An extinct species of dinosaur was thought to only have 1-2 offspring at a time. Based on this information and your knowledge of life history traits, you predict that the species also: had low levels of parental care. had a low risk of mortality at a young age. reached sexual maturity at an early age. was very short lived. All of the above. Which of the following would be considered...
no explaination is needed
7. Which of the following groups would be most likely to exhibit uniform dispersion? a) Red squirrels, who actively defend territories. b) Cattails, which grow primarily at edges of lakes and streams. c) Moths, in a city at night. d) Lake trout, which seek out cold, deep water high in dissolved oxygen. 8. As N (population size) approaches K (carrying capacity) for a certain population, which of the following is predicted by the logistic equation? a)...
3. The graph below has axes to show the population sizes of a predator and its prey. The dashed lines are the predator and prey isoclines. Prey Population Starting at the circle, draw in what will happen to the two populations if they are following the pattern in the Lotka-Volterra model of predation. (Remember that BOTH predator and prey numbers are represented by a point on the graph.) Use a series of arrows to show what happens. 2. Imagine two...
Question 1 (2pts): You are a biologist studying two species of lizards. Lizard Alays eggs in large clutches of 20-50. These clutches are buried and the lizard does not return to tend them. When the young hatch, they suffer high rates of predation. The few that survive grow to adulthood. Lizard B lays only two eggs. It tends to a nest until the young hatch and carries them on its back until they grow large enough to fend for themselves....
5. The animals of which phylum use a water vascular system in locomotion, feeding and gas exchange? a) Echinodermata b) Mollusca c) Arthropoda d) Chordata 6. As N (population size) approaches K (carrying capacity) for a certain population, which of the following is predicted by the logistic equation? a) The growth rate will not change. b) The growth rate will approach zero. c) The population will increase exponentially. d) The carrying capacity of the environment will increase. 7. A type...
Population growth problems BIDE model: No.1 N, +(B + 1) - ( D Rates: b = B/N; d = D/N: E) Net growth rate: R = b-d Exponential growth (discrete): N, NR* where R = 1+b-d Intrinsic rate of increase: r = InR Exponential growth (continuous): N:Noe -or-dN/dt = IN Logistic growth 1. Suppose a species of fish in a lake is modeled by a logistic population model with relative growth rate ofr 0.3 per year and carrying capacity of...
Given this bird population growth data, answer the followign
questions:
1) Explain why you think the population grew in the pattern it
did
2) Model the population as closely as possible using the
logistic equation. Lowever to do so, you'll need to predict the
intrinsic rate of increase and carrying capacity. Estimate these
vales as must as possible. Report the estimated R and K and graph
1) the populations (both modeled and real on the same graph)
against time, 2)...
Please answer as many as possible!! QUESTION 10 As the hydrogen ion [H +] concentration in a solution decreases, the hydroxide ion [OH -] concentration increases and the pH increases. decreases and the pH increases. increases and the pH decreases. decreases and the pH stays the same. decreases and the pH decreases. 1 points QUESTION 11 Environmental science is a theoretical approach in interpreting the environment. way to see the world in scientific terms. narrowly defined set of physical,...
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Question 23 (1 point) Which observation is NOT explained by the intermediate disturbance hypothesis In the interior of an old forest a low number of K-type species dominate the community Species evenness is larger when disturbances are extremely frequent Species richness increases immediately after a disturbance such as a fire, but may decrease later In beach dune environments, a low number of r-type species dominate the community Question 24 (1 point) Some birds follow moving swarms of army...