Morphology of Flowering Plants Questions and Answers

Type your response in the box Think about how diet and weight loss companies advertise How do they use bias to sel their products How would you use skepticism to evaluate the data that these companie use in their advertisements

A A B B C C D D Ovule Style Filament Ovary stamen D B C Nectary Mature Flower Floral axis Articulation Pedicel Connective A An Microsporangi

Stratosphene atmospit Stratosphere absone ozone layer is thinning however From the 1950s through the 1990s chlorofluorocarbons CFCs were used as propellants in spray cans and coolants in refrigerators They were also used in the manufacture of plastics In the 1970s scientists discovered that CFCs decomposed by UVR were destroying the ozone layer In 1985 a springtime depletion of stratospheric ozone was discovered over the South Pole This is often referred to as the Antarctic ozone hole In 1987 27 countries signed a global environmental agreement called the Montr al Protocol to Reduce Substances that Deplete the Ozone Layer Its London Amendment 1990 called for the production of CFCs to end by 2000 The production of CFCs has been banned in many Effects of UVR on Different Organisms Type of organism algae or phytoplankton plants bacteria protozoa zooplankton fish amphibians Overall effect of increasing amounts of UVR can inhibit photosynthesis in general inhibits photosynthesis reduces leaf size and decreases growth of many plants depending on species may be killed or highly resistant can be damaging or kill depending on age and other factors damaging can kill fish causes developmental damage answer the Analysis questions Analysis 1 What might be the effects of increasing amounts of UVR on productivity 2 What direct effects does increasing UVR have on animals 3 What indirect effects might increasing UVR have on animals Adaptations for protection against UVR UVR absorbing compounds 4 Suggest an approach to counteract increased levels of UVR in ecosystems What would you need to find out to ensure that your approach is a wise one pigmentation UVR absorbing compounds DNA repair processes DNA repair processes varies damages cells in some species DNA repair processes in some protozoa pigmentation UVR absorbing compounds DNA repair pigmentation DNA repair in fish eggs pigmentation Environmental features that protect against UVR dissolved material in water can act as a shield shade can protect plants protozoa living in deeper waters are shielded from UVR amount of Sun exposure is limited zooplankton are shielded from UVR when they swim to deeper waters deeper cooler waters protect developing fish dissolved materials in water can Machield

Why might less oxygen in the water be a problem for fish O If oxygen is too low fish will die from suffocation They need oxygen to live O If oxygen is too low the water temperature will rise too much O If oxygen is too low there will be fewer plants for the fish to eat O If oxygen is too low there isn t enough to make more water

CCC AL THINKING Examine the image and determine which plant has a woody stem structure and which has an herbaceous stem structure Write your explanation

will the world population reach 8 000 000 8 Billion What about 9 Billion Extrapolate your graph to estimate these dates What are the long term projections for world population beyond 2050 Why are these patterns predicted What do you think is responsible for the rise in human population numbers

C Fis E D F Match the rock with the correct response Choose Chemically Precipit Clastic Sedimentary Metamorphic Igneous Intrusive Igneous Extrusiv Organic Sedimentary

Which of the following groups contains the Orientati command button in MS Word 2013 O Paragraph

Which of the following command button is available i he Page Layout tab O Margins O Orientation

Where is the Manage Styles button located on the Styles pane in MS Word 2013 O Top of the styles pane Bottom of the styles pane O Right side of the styles pane

returns a Variant specifying the number of time intervals between two specified dates O Date Add O Date Diff O DatePart

As with normal criteria you can combine parameters with the keyword and wild characters to match a wider range of items O Like O Unlike O Updated All of the ch

your answer be sure to define the terms monoecious and dioecious 3 pts ANSWER 8 Describe in your own words the movement of a C fern sperm as you observed it during lab What is it about the shape and architecture of the C fern sperm that makes it move the way it does 1 pt ANSWER a How are sperm cells able to find the egg to fertilize it In other words how do the sperm know in which direction to move Provide the botanical term for the process 0 5 pt ANSWER 9 Plants are oogamous and they are embryophytes How are these features connected In other words what does being oogamous have to do with being an embryophyte 1pt ANSWER 10 For each of the following statements indicate whether it is true of false with regard to the plant world and or fern growth development and reproduction Indicate WHY you determined the statement to be True or WHY it is False by completing the Because statement You do NOT need to write your explanation in complete sentences but be sure your answer clearly reflects what you mean 1 pt each no partial credit a Ferns are unlike all other members of the plant kingdom because they produce both male and female gametes by mitosis instead of meiosis TRUE or FALSE ANSWER Because b Ferns have megaphylls on the sporophyte plants These megaphylls serve to protect the developing seeds from water ore attack TRUE FAI SEO loss and he 1

O Keyboard Hard disk O Mouse

Psilotum is distinct from most other plants in which of following ways Check all that apply It lacks roots It has its sporangia fused into a compound structure It lacks leaves It lacks stems It branches dichotomously It has terminal sporangia It lacks chlorophyll

4 The life cycle of every plant involves the reproductive function of two adult multicellular individuals the gametophyte plant and the sporophyte plant 2 pts a Which of the adult plants gametophyte or sporophyte is responsible for producing spores Answer b Which cellular process mitosis or meiosis is used to produce spores Answer c Why must the plant use the cellular process you selected to make spores Be sure your answer is complete and specific Answer d Which of the adult plants gametophyte or sporophyte is built from the growth of a spore Answer Questions 5 8 relate to how spores are produced and how they function in the plant life cycle 5 What is a sporocyte Be sure to include its ploidy and its job in the plant life cycle 0 5 pt Answer 6 What is the name of the specific structure on the adult plant in which sporocytes are located 0 5 pt Answer