Affiliate Marketing Secrets

1) Ulva:X spores settle on rocky shores,& with low temperature,they grow into germlings.This is possible due to steady lower amplitude on suceeding days,with the result they are able to perform photosynthesis & grow.Even with daytime exposure,intensity of Sunlight being low enough,no question of bleaching.By the next spring tine – after a lapse of 12 more days,they have increased their surface area & now can withstand lower levels of wave action.As more of the algae crop up,the action of waves is lessened.
2) Mitra the small black colored mollusc,dewll on middle part of supra littoral zone,where they scrape algae like Enteromorpha.During low tide they move up the walls of rock crevices,so that they can escape from direct sunlight.When the tide comes in,they start feeding.

carrying capacity : populations size :: predator : prey ::
a) niche : habitat a) competition : species
b) amount of water : Plant growth b) grazing : herbivores
c) death rate : birth rate c) ants : acacia trees
d) severe weather : density- dependent deaths d) parasite : host
species : population :: limiting resource : carrying capacity ::
a) heart : body a) turtle : pond
b) plants : animals b) sunlight : plant growth
c) cows : herd c) territory : density-independent deaths
d) sunlight : trees d) population growth : parasitism
density : area :: relationship : symbiosis ::
a) dispersion : niche a) evolution : population
b) leaves : forest b) business : partnership
c) growth rate : time c) mutualism : competition
d) habitat : niche d) health : illness
births : positive growth rate :: long generation time : short generation time ::
a) reproduction : extinction a) dogs : cats
b) deaths : negative growth rate b) ants : dog
c) limited resource : exponential growth c) elephants : bacteria
d) niche : habitat d) daisies : trees

What factors interact to produce smog? a. sunlight and pollutants from fossil fuels b. particulates and pollutants from fossil fuels c. sunlight and oxygen d. sunlight and acid rain Which of these practices has contributed to the depletion of fish populations worldwide?. a. fishing bans b. catching reproduction-age fish c. rotating catches d. harvest reduction Question 4 A predator might control an introduced species by a. keeping the population from increasing. b. causing habitat fragmentation. c. increasing available niches. d. reducing biodiversity in the area. Question 5 Which level of the food chain is most affected by biomagnification? a. secondary consumers b. producers c. tertiary consumers d. primary consumers

In a pond, plants need to be a mix of emergent, submerging, and floating species. Emergent plants, those that have their roots in the water but their shoots above water, can be added to the edges of pools. These include cattails, arrowhead, and water lilies and are homes to many species of animals. Submerging species, or those that remain under water such as elodea, are often used as oxygenators. These are plants that remove carbon dioxide from the water and add oxygen. These plants are essential in most ponds to keep the water clear. Floating species or those that are not anchored at all in the pond include plants such as duckweed, water lettuce, and water hyacinth. While not as effective as oxygenators, these plants help keep the water clear by limiting the amount of sunlight that algae receive. The algae can not survive without a lot of sunlight.
1. According to this passage, what is the niche of “submerging” plants in a pond?
A. help keep the water clear
B. add oxygen to the water
C. provides food for the fish
D. reduce the amount of algae
2. Consider the relationships between the birds, frogs, fish and plants. What level of organization in ecology is this passage describing?
A. biosphere
B. biome
C. community
D. population
3. What is the main idea of this passage?
A. Emergent plants provide homes to many animals.
B. Oxygenators are essential to life in a pond.
C. Algae can cause water to be contaminated.
D. Plants provide many resources to life in a pond.