Homework Answers
over a period of time plants had to evolve from living in water to living on land .In early plants a waxy layer called cuticle evolved to help seal water in the plants and prevent water loss. to allow the plants to retain water and exchange gases small pores in the leaves called stomata also evolved. life on earth began in the water .so when the first animals moved on to land they had to trade their fins for limbs ;and their gills for lungs;for better adaptation to land habitat. Mordern day plants are much evolve and contain many specialized organ systems like Root system shoot system and with advanced stage of pollination and fertilization (cross fertilization ;self fertilization)etc..
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2. Which problems that plants had to overcome were also problems animals had to overcome before...
In moving to land, plants had to overcome several major challenges. Which of the choices below...
In moving to land, plants had to overcome several major challenges. Which of the choices below is NOT one of these challenges? a. How to get water b. How to not be eaten by the may herbivores on land c. How to support their tissues to remain upright d. How to reproduce with swimming gametes
1) What were some of the challenges that plants had as they moved onto land? (Check...
1) What were some of the challenges that plants had as they moved onto land? (Check all that apply.) A. They no longer had structural support of water. B. They didn’t have water to stop dispersal of gametes. C. They were in danger of drying out without water. D. They were not as susceptible to predators and predators. 2) Pollen grains were a great adaptation for land plants because A. They allowed for dispersal for gametes via wind or animals...
1. Name the closest relatives to the land plants. 2. List advantages and problems faced by...
1. Name the closest relatives to the land plants. 2. List advantages and problems faced by early plants when they started colonizing terrestrial habitats. 3. List all the similarities that all current land plants share with charophytes. What distinguishes modern plants from charophytes? 4. Plants can be classified based on the presence or absence of___________________. Nonvascular plants are called…… 5. Which form dominates the nonvascular plant life cycle? Which form is dominant for vascular plants? 6. Which additional characteristics are...
Plantae: 1. Which of the following correctly describes an evolutionary trend that occurred as land plants...
Plantae: 1. Which of the following correctly describes an evolutionary trend that occurred as land plants evolved? 2. Becoming seedless b. Producing one type of spole Producing nonmotile wametes d. Haploid generation becoming dominant 2. Which of the following occurs in the Ilie cycle of both masses and anglosperms? a. The sporophyte is the dominant generation b. The gametophyce is the dominant gcneration c Spores develop into sporophytes d. The sporophyte products sporcs 3. The evolution of which of the...
1. If you were to build a phylogenetic tree of living animals, which of the following...
1. If you were to build a phylogenetic tree of living animals,
which of the following derived characters would appear first?
A. deuterostome development
B. true tissues
C. protostome development
D. bilateral symmetry
2. Birds and mammals are endotherms. They maintain body
temperature by producing heat through metabolism. Endothermy is
energetically expensive for an organism, yet endotherms have become
the dominant group of tetrapods. What is a major evolutionary
advantage of endothermy?
A. Endothermy allows greater independence from water.
B....
twe * Label the parts of phloem d er , ertes. V ar brenda epidermis 5....
twe * Label the parts of phloem d er , ertes. V ar brenda epidermis 5. How is the monocot root different from the dicot root? B. Stem section 1. Briefly explain the functions of stem in the angiosperms. 2. Label the parts of a dicot young stem section: epidermis, cortex, vascular bundles, xylem, phloem 3. Label the parts of a monocot young stem section: epidermis, cortex, vascular bundles, xylem, phloem 66 CO 4. Describe the difference in the arrangement...
INCORRECT In the case of a partial load rejection, the governor would throttle-in the main steam control valves. if the...
INCORRECT In the case of a partial load rejection, the governor would throttle-in the main steam control valves. if there was no reheat intercept valve, there could be turbine "overspeed" because the steam pressure would suddenly 1se the steam flow would suddenly increase steam would continue to pass through the high pressure turbine CS tas canned with CamScanner uld 5s through ttie mtermediate and low pressure turbines INCORRECT In the pilot valve hydraulc control system, the pilot valve is returned...
Permian extinction... Which of the following statements about the Permian extinction is FALSE? A. An estimated...
Permian extinction... Which of the following statements about the Permian extinction is FALSE? A. An estimated 95% of all marine species were lost during the event. B. Adaptive radiations of surviving groups occurred afterwards. C. An estimated 70% of all terrestrial vertebrate species were lost during the event. D. It occurred around 250 million years ago. E. It caused the extinction of the dinosaurs. Which of the following statements about taxonomy is FALSE? A. Species that are in the same...
CASE 2 cioality owned a large tract of land that had been icipal landfill site many years before....
CASE 2 cioality owned a large tract of land that had been icipal landfill site many years before. Custom ction Inc., a land development corporation, Custom Construction Inc. employees notic methane gas smell was rising from the excava house basements, and also ed that a tions for nstru moved into the municipality from another city, and was seeping into a small stream that crossed the property anxious to establish itself in the community as a quality When Custom Construction Inc....
You clone a gene in starfish which in other, similar embryos appears to be necessary (i.e....
You clone a gene in starfish which in other, similar embryos appears to be necessary (i.e. animals completely lacking it are not viable) only before midblastula transition. What experiment could you do to show that this gene product is present in very early starfish embryos? Describe any controls that would be important. If you had a starfish that were heterozygous for this mutation and you fertilized oocytes from a +/- female with sperm from a +/- male, what would you...
Plantae: 1. Which of the following correctly describes an evolutionary trend that occurred as land plants evolved? 2. Becoming seedless b. Producing one type of spole Producing nonmotile wametes d. Haploid generation becoming dominant 2. Which of the following occurs in the Ilie cycle of both masses and anglosperms? a. The sporophyte is the dominant generation b. The gametophyce is the dominant gcneration c Spores develop into sporophytes d. The sporophyte products sporcs 3. The evolution of which of the...
1. If you were to build a phylogenetic tree of living animals,
which of the following derived characters would appear first?
A. deuterostome development
B. true tissues
C. protostome development
D. bilateral symmetry
2. Birds and mammals are endotherms. They maintain body
temperature by producing heat through metabolism. Endothermy is
energetically expensive for an organism, yet endotherms have become
the dominant group of tetrapods. What is a major evolutionary
advantage of endothermy?
A. Endothermy allows greater independence from water.
B....
twe * Label the parts of phloem d er , ertes. V ar brenda epidermis 5. How is the monocot root different from the dicot root? B. Stem section 1. Briefly explain the functions of stem in the angiosperms. 2. Label the parts of a dicot young stem section: epidermis, cortex, vascular bundles, xylem, phloem 3. Label the parts of a monocot young stem section: epidermis, cortex, vascular bundles, xylem, phloem 66 CO 4. Describe the difference in the arrangement...
INCORRECT In the case of a partial load rejection, the governor would throttle-in the main steam control valves. if there was no reheat intercept valve, there could be turbine "overspeed" because the steam pressure would suddenly 1se the steam flow would suddenly increase steam would continue to pass through the high pressure turbine CS tas canned with CamScanner uld 5s through ttie mtermediate and low pressure turbines INCORRECT In the pilot valve hydraulc control system, the pilot valve is returned...
CASE 2 cioality owned a large tract of land that had been icipal landfill site many years before. Custom ction Inc., a land development corporation, Custom Construction Inc. employees notic methane gas smell was rising from the excava house basements, and also ed that a tions for nstru moved into the municipality from another city, and was seeping into a small stream that crossed the property anxious to establish itself in the community as a quality When Custom Construction Inc....
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