Magnets For EnergyI NEED HELPPP!! BIOLOGY TEST!?
Written by admin on October 18, 2009 – 12:50 pm -
ok so my sister had to go to the hospital tonight so i didn’t et to finish this test. PLEASE! can someone help me??? it would mean sooooo much!!!!
each answer has to be in paragraph form.
1. suppose you are studying two species of chordates that share a particular adaption. What would you need to know to determine wether this sharing was the result of convergent evolution?
2. Discuss the advantages and disadvantages of being an endotherm and an ectotherm in an enviornment where the air temperture drops to an average of 5 degrees celcius during the winter.
3. How is the body design of a fish well suited for living in water? explain.
4. Describe the basic characteristics os amphibians, and cite three examples of amphibians that do not share all of these characteristics.
5. Describe the changes in structure and behavior that occur as a frog develops from a larva into an adult.
6. What improvements in jaw design have contributed to the success of snaes as predators?
7. flying requires a great amount of energy. What adaptions in the respiratory system allow birds to meet their high energy needs?
8. List the major characteristics of mammals.
9. Suppose a group of scientists discover an unidentified female mammal in new guinea. How might they determine wether the mammal is a monotreme, a marsupial, or a placental mammal?
10. What is the evolutionary relationship between the angiosperms and gymnosperms living today? did the angiosperms evolve from the gymnosperms?
11. compare and contrast the sporophyte stages of mosses and ferns. include at least 2 similarities and two differences. then do the same for their gametophyte stages.
12. explain how a forest fire can affect the germination of certain pine seeds and the recovery of a forest from a fire.
13. describe grafting and budding, and explain why these methods of proppagation are used.
14. explain why sealing fruit in a bag might cause the fruit to ripen quickly.
15. Identify 3 factors that affect the rate of photosynthesis and explain the affect of each.
THANK YOU SO MUCH IF YOU HELP ME OUT!!
OKAY! im gonna try my best to help you out!
these might not be in order….im just gonna answer what i can!
8. List the major characteristics of mammals.
-have mammary glands (meaning they make milk for their offspring)
-they have hair on some part of their body
-they have middle ear bones
12. explain how a forest fire can affect the germination of certain pine seeds and the recovery of a forest from a fire.
well pine seeds are gymnosperm, so they disperse their seeds by cones and a forest fire would not only destroy the original trees where the cones originated from, but since the seeds themeselves are dependent on being dispersed from the cone "exploding" they lay on the ground, where they are vulnerable to being burned, as opposed to some plants that use animals or the wind for dispersal of seeds, thus giving the seeds a greater chance of getting away from the fire. of cource, the lack of seeds would effect the rate of regrowth one the fire has burned out.
10. What is the evolutionary relationship between the angiosperms and gymnosperms living today? did the angiosperms evolve from the gymnosperms?
angeosperm are so far the last and most complex plant type yet to evolve, so yes, they did evolve from gymnosperm. both are vascular seeded plants.
6. What improvements in jaw design have contributed to the success of snaes as predators?
i would assume that the snakes ability to swallow its prey whole and extend its jaw so wide has effected its sucess rate as a predator
4. Describe the basic characteristics os amphibians, and cite three examples of amphibians that do not share all of these characteristics.
this is a difficult question as far as the examples go, because as earth itself evolved, amphibians had a harder time surviving as the air temperatures cooled and water evaporated. to this day, there are only three main types of amphibians left living, the frog, toad, and salamander. most amphibians hit their evolutionary "dead end" when they tried to adapt to living on land, and failed to be able to adapt to maintian mosture and adapt to gravity
never the less, some distinctive characteristics of amphibains are that they lay their eggs underwater. this really distinguishes them from reptiles, who evolved from amphibians, and adapted to laying their eggs on the land. amphibians also maintin the ability to breath throught their skin through a gas exchange.
I HOPE THIS CAN HELP YOU A BIT!!!
Posted in Energy recovery systems | 2 Comments »
By Lola D on Oct 18, 2009 | Reply
omgawddd ive tried getting my tests like this done by puttin it as a Q on here but sadly no one answerd.=( i really wish i culd help u but iven never studied that b4. but i did try searching online to try to find the answers, dont put the exact question but try to put some of it wen u search and u might find ur answer =) good luck!!! =D
References :
By thirteen on Oct 18, 2009 | Reply
OKAY! im gonna try my best to help you out!
these might not be in order….im just gonna answer what i can!
8. List the major characteristics of mammals.
-have mammary glands (meaning they make milk for their offspring)
-they have hair on some part of their body
-they have middle ear bones
12. explain how a forest fire can affect the germination of certain pine seeds and the recovery of a forest from a fire.
well pine seeds are gymnosperm, so they disperse their seeds by cones and a forest fire would not only destroy the original trees where the cones originated from, but since the seeds themeselves are dependent on being dispersed from the cone "exploding" they lay on the ground, where they are vulnerable to being burned, as opposed to some plants that use animals or the wind for dispersal of seeds, thus giving the seeds a greater chance of getting away from the fire. of cource, the lack of seeds would effect the rate of regrowth one the fire has burned out.
10. What is the evolutionary relationship between the angiosperms and gymnosperms living today? did the angiosperms evolve from the gymnosperms?
angeosperm are so far the last and most complex plant type yet to evolve, so yes, they did evolve from gymnosperm. both are vascular seeded plants.
6. What improvements in jaw design have contributed to the success of snaes as predators?
i would assume that the snakes ability to swallow its prey whole and extend its jaw so wide has effected its sucess rate as a predator
4. Describe the basic characteristics os amphibians, and cite three examples of amphibians that do not share all of these characteristics.
this is a difficult question as far as the examples go, because as earth itself evolved, amphibians had a harder time surviving as the air temperatures cooled and water evaporated. to this day, there are only three main types of amphibians left living, the frog, toad, and salamander. most amphibians hit their evolutionary "dead end" when they tried to adapt to living on land, and failed to be able to adapt to maintian mosture and adapt to gravity
never the less, some distinctive characteristics of amphibains are that they lay their eggs underwater. this really distinguishes them from reptiles, who evolved from amphibians, and adapted to laying their eggs on the land. amphibians also maintin the ability to breath throught their skin through a gas exchange.
I HOPE THIS CAN HELP YOU A BIT!!!
References :