Plant defense mechanisms focus on protection from herbivores because: 1) plant-e
ID: 78428 • Letter: P
Question
Plant defense mechanisms focus on protection from herbivores because: 1) plant-eating carnivores are not affected by plant toxins 2) herbivores are the organisms that eat plants 3) autotrophic organisms only eat animals 4) herbivores are easier to poison than animals 5) plants have parasites that help them ward off carnivores Characteristics of oligotrophic lakes include all of the following except 1) waters richer in oxygen content. 2) they have greater depths. 3) they have very clear blue water. 4) they are highly susceptible to pollution. 5) they are nutrient-rich. Effects that are dependent on the size of the population and regulate the growth of populations are called _____ effects. 1) K-related 2) density-independent 3) environmental resistance 4) density-dependent 5) demographic SaveExplanation / Answer
16) the answer is option (5) they are nutrients rich.. Oligotrophic lakes are very less in nutrients specially (phosphorus and nitrogen)..
17) the answer is option (4)density dependent.. .
A factor whose effects on the population growth and size vary with the population density. The factors generally involve like biotic factors, such as the availability of food, predation, parasitism, migration and diseases..!!