Question

no explaination is needed

8. In ecology, density independent population growth a) results from decreased fecundity. b) is associated with crowded populations. ch results from competition for resources. d) may be associated with stochastic events. 9. 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. 10. Which of the following is an example of Müllerian mimicry? a) Two species of unpalatable butterfly that have the same colour pattern. b) A day.flying hawkmoth that looks like a wasp. c) A chameleon that changes its color to look like a dead leaf. d) Two species of rattlesnakes that both rattle their tails. 11. in sexual reproduction a) a zygote is formed from the fusion of an egg and sperm. b) an embryo is formed from the fusion of ese and sperm c) a zygote is formed from an egg from a male and an egg from a female d) an offspring is formed that it identical to one of the parents. 12. The forms of asexual reproduction in animals include: a) fission, cloning, fragmentation, budding b) fragmentation, budding, fission, parthenogenesis c) cloning, fission, parthenogenesis, fragmentation d) spontaneous division, budding, fragmentation, doning 13. Sexual reproduction results in genetic recombination, which provides the advantage of a) an increase in the rate of adaptation b) an decrease in the rate of adaptation. c) the accumulation of harmful genes in a population. d) a decrease in genetic variation 14. Where do female insect species, including honeybee queens store gametes shed by their mating partners? a) Their nests. b) The abdominal tract cl The uterus. d) The spermathecal. 15. The "slow block' to polyspermy is due to a) a transient voltage change across the membrane b) the consumption of yolk protein c) the jelly coat blocking sperm penetration d) formation of the fertilization envelope

Answer 1

Q.8- d - All the other options given are density dependent factors. These mainly include biotic factors such as inter and intraspecific competition for reseouces, predation, diseases, fecundity etc.

Density independent factors mostly include abiotic factors such as external and environmental factors like weather, pollution, natural calamities etc.

Only the last option is density independent, others are density dependent.