Tag Archive | "Cycle"

Need Advice From Females Doing Atkins/low-carb?


I’ve been doing Atkins for a month now… I’ve lost a lot of weight, I feel so much healthier, and I really feel like this is my niche to achieve the goals I want for myself.
The problem is this diet is seriously messing with my cycle. I started early last month, by a week, and had my lady time for 11 days. Two weeks later, it has started again, and again it is still a week early. Have any other women had trouble with this? I have been looking online and read a few articles about it happening, but I’m not sure if this is permanent change in my body or a temporary adjustment?

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What Are The Answers To These Questions?


My professor assigned 100 questions for us to answer and study off of and I have had trouble with these following questions. I would greatly appreciate any imput.
An ecosystem
A. includes only the plants within a particular area.
B. includes all the living organisms within a specific area, but not the abiotic factors.
C. includes both living and abiotic factors within a particular region.
D. always includes equal numbers of plant and animal species.
E. only refers to biotic factors in a region.
The physical space that an organism occupies in its environment is its ______________.
A. habitat
B. niche
C. biotic factor
D. role
E. abiotic factor
A keystone species is
A. the largest species in a community.
B. the most numerous species in a community.
C. the least numerous species in a community.
D. a species on which many other species depend.
E. the species that occupies most of the niches within a particular environment.
Which of the following is an incorrect association regarding interactions within communities?
A. habitat–area of community where a particular species lives
B. parasitism–one species obtains nutrients from another
C. mutualism–relationship benefits both species
D. commensalism–one species benefits and one species is harmed by the
E. predation–one species feeds on another
An exotic species is defined as a species that is
A. illegal to sell.
B. a poor competitor for nutrients.
C. a hybrid.
D. indigenous to an area.
E. non-native to a particular community.
Which of the following is an incorrect statement?
A. Plants are Decomposers that live on dead organic matter.
B. Autotrophs are called producers because they produce food.
C. Herbivores eat algae or plant material.
D. Detritus includes both living and non-living material.
E. Chemoautotrophs obtain energy from inorganic compounds.
Which of the following is an incorrect association?
A. trophic level–level of nourishment within a food chain
B. sedimentary cycle–chemical absorbed from soil and eventually returned to soil
C. food chain–a diagram showing a single path of energy flow in an ecosystem
D. ecological pyramid–energy gain between trophic levels
E. grazing food web–begins with plants
Which of the following biomes has the higher primary productivity?
A. temperate grassland
B. desert
C. temperate deciduous forest
D. coral reef
E. sandy beach
When too many nutrients are added to of a body of water, this is known as __________.
A. A biogeochemical cycle
B. reservoirs
C. eutrophication
D. global warming
E. nitrogen fixing
Which of the following is an example of a sedimentary cycle?
A. the phosphorus cycle
B. the nitrogen cycle
C. the carbon cycle
D. the atmospheric cycle
E. eutrophic cycle
Biomes are defined by
A. types of plants.
B. types of animals.
C. communities.
D. temperature and rainfall.
E. both plants, animals, and inorganic matter.

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Help Me With Some Homework?


1. What is the scientific method? What are the steps used in the method?
2. Define controlled experiment, control group & variable?
3. Name 4 important lab safety rules.
4. What is Biology?
5. Name the 8 characteristics of life.
6. Know microscope parts & functions, how do you figure out total magnification?
7. What is the difference between a solid, liquid, and a gas?
8. What is an atom & what 3 particles are found inside an atom?
9. Why is water a polar molecule?
10. What is the pH range of base? Acid?
11. What is a buffer?
12. What element do ALL organic compounds contain? What makes this element special?
13. Define carbohydrate, monosaccharide & polysaccharide.
14. Contrast dehydration synthesis & hydrolysis.
15. Define lipid. What monomers are they made of? How does one differ from another?
16. Contrast saturated lipids & unsaturated lipids.
17. Define sterols & phospholipids. Where do we find each?
18. What elements do proteins contain? What monomers make up proteins?
19. What do enzymes do? Define substrate & active site.
20. What makes up an amino acid? How does one differ from another?
21. Define peptide bond & polypeptide.
22. What elements make up a nucleic acid? What are the monomers of nucleic acids?
23. Who is Hooke? Leeuwenhoek? What did they do?
24. What organelles do plants have that animals do not? What is each used for?
25. What is the cell theory?
26. What is ATP?
27. Why is ATP important?
28. Define cell & organelle. Give 3 examples of organelles & what they do?
29. Contrast prokaryotic & eukaryotic cells.
30. What is the Fluid Mosaic Model?
31. Define diffusion, osmosis & concentration gradient.
32. Define exocytosis, endocytosis, phagocytosis & pinocytosis.
33. What is equilibrium?
34. Contrast passive & active transport.
35. If a cell is in a hypertonic solution, which way will water move? What about a hypotonic solution?
36. Define cytokinesis. How is it different in plants and animals?
37. What determines how quickly materials enter and leave a cell?
38. What are chromosomes made up of?
39. A cell contains 15 chromosomes, how many will it have after mitosis?
40. At the beginning of mitosis, what does a chromosome consist of?
41. Define centromere, chromatid, and chromatin.
42. Name the phases of mitosis. What happens in each? Draw a sketch of each.
43. What phase of interphase is DNA replicated in?
44. As you move from Kingdom to Species, organisms become MORE or LESS similar.
45. Who came up with the 2 name system of genus and species?
46. Felis domesticus. Which name is the genus?
47. Give 2 reasons why scientists don’t use common names. What language is used?
48. What is the correct order of the biological hierarchy from kingdom to species?
49. Define a cladogram.
50. Define a community
51. What does an ecosystem consist of?
52. What is the difference between a niche and a habitat?
53. What are organisms that manufacture organic nutrients for an ecosystem called?
54. What is the primary producer in a cow pasture?
55. What happens to nitrogen when an organism dies?
56. In a food web, which type of organism receives energy from every other type?
57. In an energy pyramid, where do you find the most energy? The bottom or the top?
58. Water and minerals needed by all organisms on Earth are recycled through the ___________ cycles.
59. Precipitation and evaporation are important components of the ________ cycle.
60. Decomposition, bacteria, ammonia and fixation are part of what cycle?
61. Proteins are made up of this important organic compound that is involved in a biogeochemical cycle.
62. Name 3 things that come from decayed plants, are fossil fuels, and release carbon dioxide when they are burned.
63. When humans burn fossil fuels, destroy vegetation that absorbs carbon dioxide, and clear cut forests, we are impacting the _______ cycle.
64. Populations grow because the ________ rate is higher than the ________ rate.
65. As a population reaches its carrying capacity, there may be an increase in competition for these 3 things:
66. Human population growth is currently most rapid in developed/developing countries?
67. _____________ coevolve with their hosts, are usually smaller than their hosts, and rarely kill their hosts.
68. What is competitive exclusion?
69. Give an example of mutualism and commensalism.
70. Define succession.
71. What kind of succession occurs after a forest fire?
72. When a previously existing community is replaced, this is called ____________ succession.
73. Scientists strongly suspect that temperatures are increasing on Earth because increasing______________ in the atmosphere is trapping more heat. This is called the ________________ effect.
74. Pines, spruces and firs are examples of ___________.
75. Pollen is produced in the ________.
76. What is the male part of the flower?
77. What is the female part of the flower?

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Can Anyone Please Help Me With My Science Midterm Review?


1. What are the goals of environmental science?
2. List 4 organisms that are found on a sandy tidal shore.
3. What is precipitation? Evaporation?Condensation?Percolation? Runoff?
4. What are mangrove forests? List 5 reasons for their importance.
5. When was the Age of Reptiles? The Age of Mammals?
6. What is the difference between Nitrobacter and Nitrosomomas?
7. The ability to measure the resistance of a mineral to being scratched is ____?
8. How many significant figures in 29.0005?
9. What is ecological succession?
10. When did fish first appear?
11. Where is the largest reservoir of carbon found?
12. What is the layer of Earth that “floats”?
13. List 4 evidence for tectonic plate theory.
14. List 2 ways we alter the Carbon cycle.
15. Draw the layers of Earth and name them.
16. What is the difference between native and nonnative species?
17. Differentiate between the euphotic, bathyal, and abyssal zones?
18. divide 9.000 / 1.75, the answer should have how many SF?
19. Which layer of the atmosphere is ozone found?
20. Which layer of the atmosphere is all weather found?
21. What type of fault was found at Haiti’s earthquake?
22. What are biomes? List 3.
23. Organisms that eat meat only are called ____?
24. Organisms that eat meat and plant material are called ?
25. What does the lithosphere consist of____ and _____?
26. Give me 4 examples of populations?
27. When you multiply 2 numbers, the answer should have how many SF?
28. When did the 4 mass extinctions occur?
29. List 4 organisms that are extinct?
30. List 4 organisms that are endangered? Or threatened?
31. What is the shadow method?
32. What are magnetic fields used for?
33. What are decomposers?
34. List the unique properties of water.
35. What are coral reefs and how do they die? (coral bleaching)
36. What are functions of the atmosphere? What does it do for us?
37. How old is the Earth?
38. STUDY THE HAITI HANDOUT
39. Differentiate between denitrification, ammonification, assimilation, nitrogen fixation.
40. Study your fossils lab.
41. Define mineral. Luster. Color. Streak.
42. List 4 reasons for wolf deaths at Isle Royale
43. What type of interaction did the wolf and moose have?
44. Define carrying capacity.
45. Define niche.
46. How do humans affect the nitrogen cycle? List 3 reasons.
47. What are lentic and lotic rivers?
48. What are the littoral, profundal, benthic, and limnetic zones?
49. What is weathering?
50. What is seafloor spreading?
51. How many people on Earth?
52. What is transpiration?
53. What is total fertility rate? What are reasons for a decrease in death rates?
54. Why did India’s plan fail?
55. U.S.G.S. classifies minerals into 4 categories, what are they?
56. What are igneous, metamorphic, sedimentary rocks?
57. Differentiate between open-pit, contour, and subsurface mining.
58. Differentiate between carbonates, sulfates, oxides, and halide minerals.
59. Who determines total fertility rates? Males or females?
60. how do we determine population changes?
61. What is a subduction plate boundary?ss
i really need answers! please help!

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Simplify These Definitions Please..easy 10 Points!?


Carbon cycle: Ecology The combined processes, including photosynthesis, decomposition, and respiration, by which carbon as a component of various compounds cycles between its major reservoirs—the atmosphere, oceans, and living organisms.
Carrying Capacity: The maximum number of persons or things that a vehicle or a receptacle can carry
Cellular Respiration: The series of metabolic processes by which living cells produce energy through the oxidation of organic substances.
Consumer: An organism that generally obtains food by feeding on other organisms or organic matter
Dependent Variable: A dependent variable is what you measure in the experiment and what is affected during the experiment
Ecological Niche: the status of an organism within its environment and community
ecosystem: An ecological community together with its environment, functioning as a unit
PLEAAAAAAAAASE HELP ME SIMPLIFY THESE!

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Ecology Crossword Help!!!?


ACROSS:
use energy for homeostasis
living things in their environment
heterotrophs
sequential re-growth of species
eats both meat &plants
CO2 & carbohydraytes are in this cycle
ticks, fleas, lice, lampreys…
manufacture their own food
deceptive or warning camouflage
your narrow niche makes you this
density (?) factors reduce popn due to its size
cycle that includes ammonification & fixation
tapeworm, roundworm, hookworm…
where Earth + atmosphere = life support
consumed by predator after the hunt
in commensalisms, only 1 species does this
S-curve, or growth where births = deaths
community very resistant to change
DOWN:
ecosystems waste recycler
total organic material in an ecosystem
dependent on tolerable environmental conditions
birth ___; death ___; mortality ___
species lifestyle &habitat determine this
nonliving
species (?) suggests ecosystems health
popn size the area can support (2words)
type of exclusion that drives 1 species out
large ecosystem w/distinct characteristics
earths insulation
close interactions among species
stable end point community
density-independent (?) hurt popn regardless of size
decomposers break this down

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