miércoles, 18 de julio de 2012

Powerpoint presentation HW


All this animals have a notochord,postanal tail, nerve chord and pharyngeal pouch.

Definitons:

1. Chordate: Animals that 4 structures present at some stage of their development.

2. Nerve chord: A tubelike structure located above the notochord.

3. Pharyngeal pouches: Are sac-like projections found in the region between the mouth and the digestive tube.

4. Postanal tail: A muscular structure at the end of the developing chordate.

5. Endoskeleton: An internal supporting skeleton, derived from the mesoderm, that is characteristic of vertebrates and certain invertebrates.

6. cartilage: A tough, elastic, fibrous connective tissue found in various parts of the body, such as the joints, outer ear, and larynx. A major constituent of the embryonic and young vertebrate skeleton, it is converted largely to bone with maturation.


7. vertebrae:  A vertebra is one of 33 bony segments that form the spinal column of humans. There are 7 cervical, 12 thoracic, 5 lumbar, 5 sacral and 4 coccygeal.

8. ectotherm: cold-blooded.

9. endotherm: warm-blooded.

martes, 17 de julio de 2012

review for arthropds mollusks


appendages--molting-closed circulatory system--open circulatorysystem--crop-radula--exoskeleton-setae--gill--spiracle--gizzard-tube feet--mantle--water-vascular system--metamorphosis


1. Mollusk shells are secreted by the mantle.

2. As earthworms move through soil using their seatae, they take soil which is stored in the crop.

3. The exoskeleton covers and protects arthropod bodies.

4. Insects exchange oxygen and carbon dioxide through spiracles.

5. Tube feet act like suction cups and help sea stars move and feed.

6. Snails use a(n) water-vascular system to get food.

7. The blood of mollusks moves in a(n) open circulatory sytem.


8. What structure covers organs of mollusks?
A) gills      B) mantle
C) food     D) visceral mass


9. what structures do echinoderms use to move and to open shells of mollusks?
A) mantle    B) spines
C) calcium plates  D) tube feet


10. which organism has a closed circulatory system?
A) earthworm   B) slug
C) octopus     D) snail


11. What evidence suggests that arthropods might have evolved from annelids?
A) arthropods and annelids have gills.
B) both groups have species that live in water
C) segmentation is present in both groups
D) all segmented worms have setae





12. which of the following correctly describes the arthropod pictured above?
A) 3 body regions, 6 legs
B) 2 body regions, 8 legs
C) many body segments, 10 legs
D) many body segments, 1 pair of legs per segment


13.what type of arthropod is this animal?
A) annelid   B) insect
C) arachnid   D) mollusk


14. which is an example of an annelid?
A)earthworm    B) slug
C) octopus   D) snail


15. which sequence shows in complete metamorphosis?
A) egg-larvae-adult
B) egg-nymph-adult
C) larva-puppa-adult
D) nymph-pupa adult

jueves, 12 de julio de 2012

annelids(worms) review

I.Vocabulary: 


Cilia: short threadlike structure that aid in locomotion.


Free-living: doesnt depend on another organism for food or a place to live.


Anus: is and opening at the end of the distive tract through which wastes leaves the body.


II. Section 3 review 


1. compare and contrast the body plan of a flatworm and the body plan of a round worm.


(photos comparing everything)

2. distinguish between a free-living flatworm and a parasitic flatworm


parasitic flatworms live inside a host and take all of their nutrients, a free living flatworm does not need a host to survive.

3. explain how tapeworms get energy.


Tapeworms basically get their energy from their host, gaining the nutrients people/animals get from food. They tend to make people lose weight due to the fact that they are leeching off all the nutrients you can get from food, which is why people/animals with tapeworms become thin, and lose weight.






Article:



CALIFORNIA | LOCAL
May 1, 2001 | MAI TRAN
Health officials warned residents not to eat mussels and other mollusks harvested from local waters because the bivalves contain high levels of toxins. The annual quarantine begins today and ends Oct. 31. Mollusks such as mussels, clams, oysters and scallops contain elevated levels of toxin and could poison those who eat them without first removing the digestive organs, said Mike Spurgeon, deputy agency director of the county Health Care Agency.

Response:

--That the officials should´t warn shouldve just poivided the residents 
to eat plus removing the digestive system would be like removing everything
from the bivalve body.



miércoles, 11 de julio de 2012

types of animals



1. Animal without backbones (vertebrate)

2. body parts arranged around a central point (radial symmetry)

3. animal that eat only other animals (carnivores)

4. animal that eat just plant (herbivores) 

5. animal that produces  produce sperm and egg in 1 body (hermaphrodite)

6. animal with backbone (invertebrate)

7. body parts arranged similarly on both sides of the body (bilateral symmetry)

8. cnidarian body that is vase shaped (polyp)

9. attached to 1 place (sessile)

10. cnidarian body that is bell shaped (medusa)


11. which of the following animals is sessile
A) jellyfish  B) roundworm
C) planarian  D)sponge

12. what characteristics do all animmals have?
A) digest their food  B) radial symmetry
C) free-living  D) polyp and medusa forms 

13. which term best describes a hydra
A) carnivore  B) herbivore
C) filter feeder  D) parasite

14. which animal has a mouth and an anus
A) roundworms  B) planarian
C) jellyfish  D) tapeworm

15. what characteristics do scientist use to classify sponges?
A) material that makes up their skeleton  B) nethod of obtaining food
C) reproduction  D) symmetry


16. which animal is cnidarian? 
A) fluke  B) jellyfish 
C) heartworm  D) sponge

17. the photo above shows which hermaphroditic invertebrate organism?
A) fluke  B) tapeworm
C) coral  D) roundworm

18. how do sponges reproduce asexually? 
A) budding  B) medusae
C) polyps  D) eggs and sperm

19. what is the young organism  that the fertilized egg of a sponge develops into? 
A) bud  B) medusa
C) larva  D) polyp

20. which group do roundworms belong to?
A) cnidarians  B) planarians
C) nematodes  D) sponges


21. compare and contrast the body organization of a ponge to that of a flatworm.


A hollow tube that is closed at the bottom and open at the top, have bilateral symmetry and have senses in the head region.

22. infer the advantages of being able to reproduce sexually and asexually for animals like sponges,cnidarians, and flatworms.

23. list the types of food that sponges,hydras, and planarians eat. explain why each organism eats a different size of particle.

24. compare and cosntrast the medusa and polyp body forms of cnidarians.

25. infer why scientists  think the medusa stage was the 1st stage of the cnidarian.


26. form a hypothesis about why cooking pork at high temperatures prevents harmful round worms from developing, in the uncooked meat.


27. predict what you can about the life of an organism that has no mouth or digestive system but has suckers and hooks on its head.


28.look at the photograph below.this animal escapes from predators by mimicry. where in nature would you find the animal in this photo? 



lunes, 9 de julio de 2012

plant and animal examples


Name: jose manuel moreno   Teacher: Mrs. Pamela Ortiz    Grade: 7th        Date: 9/7/12


(Non)vascular plants Amphibians Reptiles birds arthropods mammals
moss Caecilian newt lizard

American Bittern

Japanese spider crab humans
liverwort Marine toad turtle

Black-throated Sparrow

crab lions
algae bullfrog snake

Boreal Chickadee

Pill bugs tigers
hornwort American toad crocodiles

Common Grackle

millipede wolves
cycad hellbender Worm lizards

Common Tern

centipede cats
ginkgo Japanese giant tuataras

Eastern Meadowlark

trilobites dogs
fern Salamander caimans

Evening Grosbeak

thorax goats
horsetail Spadefoot toad alligators

Field Sparrow

abdomen racoons
Joint fir Leopard frog carapace

Grasshopper Sparrow

orthoptera whales
Club moss Pickerel frog gavials

Greater Scaup

odonata dolphins
sunflower Green frog
terrestrialism
woodpigeon
hemiptera porcupines
peat African goliath frog elasmosaur Collared dove lepidoptera otter
potatoes Suriname toad plesiosaur wren diptera sheep
cactus Mudpuppy mosasaur dunnuck coleoptera fisher
grape Red eyed tree frog champosaur robin hymenoptera bears
pine Poison arrow frog chorion blackbird arachnids deer
peach Cave salamader amnion Song thrush spiders moles
Vanilla orchid eft allontois blackcap tarantulas skunks
Pecan tree siren albumin Coal tit scorpions coyote

viernes, 6 de julio de 2012

plant review



WORD BANK


auxin---photoperiodism---cellular respiration---photosynthesis---chlorophyll
short-day plant---day-neutral plant---stomata---long-day plant---tropism


I. Comlete:


1. Auxin is a hormone that causes plant stems and leaves to exhibit positive phototropism
.
2. Photosynthesis is a light-dependent process conducted by green plants but not by animals.


3. Chlorophyll is required for photosynthesis.


4. A poinsettia, often seen flowering during december holidays, is a(n) short-day plant.


5. In most living things, energy is released from food by cellular respiration.


6. Spinach requires only 10 hours of darkness to flower, whick makes it a(n) long-day plant.


7. A(n) tropism can cause a plant to bend toward light.


8. Plants usually take in carbon dioxide through the stomata.


9. Photoperiodis controls a plant´s response to the numbers of hours in darkness.


10. Plants that flower whithout a specific photo period are day-neutral plants.


II. Multiple choice:


11. What raw material needed by plants enters through open stomata?
A) sugar    C) carbon dioxide 
B) chloropyll   D) cellulose


12. What is a function of stomata?
A) photosynthesis  B) to guard the interior cells
C) to allow sugar to escape  D) to permit the release of oxygen


13. What plant process produces water, carbon dioxide, and energy?
A) cell division  C)  growth
B) photosynthesis  D) cellular respiration


14. what are the product of photosynthesis?
A) glucose and oxygen  B) carbon dioxide and water
C) chlorophyll and glucose  D) carbon dioxide and oxygen


15. What are plant substances that affect plant growth called?
A) tropisms  C) germination
B) glucose  D) hormones


16. Leaves change colors because what substance breaks down?
A) hormone  C) chlorophyll
B) carotenoid   D) cytoplasm


17. Which is a product of cellular respiration?
A) CO2      C) C2H4
B) O2          D) H2
--18. What is stimulus is the plant on the picture responding to?
A) light  C) touch 
B) gravity  D) water




19. You buy pears at the store thta are not completely ripe. What do you do to help them ripen rapidly?


I leave them in the refrigerator or outside so they can ripe and use them when they are ripen.


20. Name  each tropism and state whether it is positive or negative.
A) stem grows up  positive
 B) roots grow down     positive
C) plant grows toward light   positive
 D) a vine grows around a pole    positive


21. scientists who study sedimentary rocks and fossils sugguest that oxygen was not in earth´s atmosphere until plantlike, 1-celled organism appeared. why?


Because they never found any plant fossils and the 1 they found was 420 million years old (2.5 CM tall)


22. Why do apple trees bloom in the spring but not in the summer.


Because they are long-day plants


23. Why do day-neutral and long-day plants grow best in countries near the equator.


Day-neutral plants because they are like a combination of long-day and short-day plants
and long-day plants because the equator has long day but short nights.


24. Form a hypothesis about when guard cells open and close in dessert plants.


Because in the heat of the day they capture the carbon dioxide in a form of acid and open at night for the next day do the photosynthesis.(Other ways for the plant is to curl there leaves so they dont lose the moisture in there body.)


25. Copy and complete the following information: flower year-round--corn, dandelion,tomato; flower in spring,fall or winter--chrysanthemum,rice,poinsetteia; flower in summer--spinach,lettuce,petunia.


CONCEPT MAP