Ch. 4.1 and 4.2

4.1 Living things inherit traits in patterns.

Vocabulary: sexual reproduction, gene, heredity, allele, phenotype, genotype, dominant, recessive

Review:

1. Acquired traits are not determined by genes; inherited traits are.

2. Inherited traits are controlled by two factors, and one factor can mask another.

3. recessive

4. Genotype desribes the genes that code for traits; phenotype desribes the traits that are expressed.

5. If a person has one recessive and one dominant allele, the dominant allele will be expressed. So a person can have a recessive allele and it will not show in the phenotype.

6. Brown; the parents must both carry two recessive genes for brown fur, otherwise a single dominant black allele makes them black.

4.2 Patterns of heredity can be predicted.

Vocabulary: Punnette square, ratio, probability, percentage

Review:

1. They show how the parent´s alleles may be passed on to offspring.

2. Ratios compare one number to another number. A percentage is a ratio that compares a number to 100.

3. Determine each possible outcome. Represent it as a ratio in fraction form. Multiply by 100 to find the percentage.

4. Two blocks have one recessive and one dominant allele. One block has two dominant alleles, and one block has two recessive alleles. The chance for each possible outome is 75 perent purple and 25 percent for white.

5. The probability is 25 percent. Two blocks will show one recessive and one dominant allele. One block will show two dominant alleles. One block will show two recessive alleles.

Colegio San Patricio
4th Period Biology Quiz #2
School Year 2010-2011
Name_____________________________________________________List#__________
Date_____________________________________________________________7th_____
I. Write the vocabulary word that goes next to the following definitions.

1. _______________A cold-blooded vertebrate animal that lives in water and breathes with gills when its young; as an adult, it moves onto land and breathes air with lungs.
2. _______________The process of keeping eggs warm by bodily heat until they hatch.
3. _______________A cold-blooded vertebrate that has skin covered with scales or horny plates and has lungs.

II. Write true or false.
4. Ectotherms have a constant body temperature. __________
5. Amphibians take in oxygen through their smooth, moist skin. __________
6. Down feathers allow birds to fly. __________
7. Endotherms need to eat more often than ectotherms to produce body heat. _________

III. Answer the following questions.
8. Write 3 adaptations that make flight possible for birds.
_________________________________________________________________________
9. A crocodile was lying in the sun for an hour. When it slides into the cool river, how will its body temperature change? Why?
__________________________________________________________________________________________________________________________________________________
IV. Compare and Contrast amphibians and reptiles. Draw a venn diagram and write 2 things on how they are the same and two things on how they are different.

Quiz #1

Colegio San Patricio 4th Period Biology Quiz #1 I. Match the words with their definitions. 8 pts. respiratory system cellular respiration vertebrate endoskeleton scale 1. ____________ An internal support system, such as a skeleton made of bone tissue. 2. ____________ An animal with an internal back bone. 3. ____________ A system that interacts with other body systems to bring oxygen to the body and remove carbon dioxide. 4. ____________ A process in which cells use oxygen to release energy stored in sugars. II. Write true or false. 7 pts. each. 5. The diaphragm prevents food and liquids from entering the lungs. ____________ 6. The alveoli is where gas exchange occurs. _______ 7. An endoskeleton makes it easier for animals to move. _______ 8. Most young fish develop inside an egg. _______ III. Answer the following questions. 10 pts. each. 9. Name a feature from each of these groups: Cartilaginous fish:__________________________________________________ Jawless fish:_______________________________________________________ Bony fish__________________________________________________________ 10. Write 3 examples of vertebrates: ___________________________________________________________________ 11. In addition to breathing, what functions does the respiratory system perform? Name at least 2. ___________________________________________________________________ 12. How is the air that you inhale different than the air that you exhale? ___________________________________________________________________

Ch. 3.3 Both secual and asexual reproduction involve cell division.

Vocabulary: asexual reproduction, binary fission, regeneration
Review:
1. They are the same in prokaryotes.
2. A bud is a bump on the body of a parent that grows until it forms a new organism genetically identical to the parent. In some organisms buds can form anywhere, but in other organisms, buds form at specific places with specialized cells.
3. Asexual reproduction involves only one parent, has a rapid rate, and produces identical offspring. Sexual reproduction involves two parents and produces offspring that have genetic material from both parents.
4. No, because regeneration only happens in multicellular organisms, and prokaryotes are unicellular.
5. Eukaryotic organisms do not undergo binary fission.
6. The offspring would hve more genetic variation.

CH. 3.2 Celll division is part of the cell cycle.

Mitosis Silviasalas

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Vocabulary: cell cycle, interphase, mitosis, cytokinesis

Review:

1. interphase and cell division

2. two complete sets of DNA, twice the size of when it was first formed

3. They are identical.

4. Chromosomes form (prophase), chromosomes line up (metaphase), chromosomes separate (anaphase), nuclei form (telophase).

5. In both plant and animal cells, cytokinesis is the division of the cytoplasm. In plant cells a cell plate forms and becomes a new cell wall and cell membrane. In animal cells, the cell membrane pulls inward and pinches into two new cells.

6. Yes, because cytokinesis is the division of the cytoplasm, and prokaryotes have cytoplasm to divide.

CH. 3.1 Cell diviion occurs in all organisms.

Vocabulary: DNA, chromosome

Review:

1. It leads to growth, development, and repair.

2. It condenses and forms chromosomes.

3. Cells divide to make more cells, which allow multicellular organisms to grow. As cells divide, they can specialize.

4. It wraps in coils around proteins, and then compacts further as it arranges into chromosomes.

5. Skin cells wear out quickly, so they duplicate frequently. Brain cells usually last a long time and do not replace themselves often. Skin heals faster because its cells are better equipped to replace themselves.

13.3 Birds meet their needs on land, in water, and in the air.

Vocabulary: endotherm, incubation

13.3 Review
1. Endotherms need to consume food to produce body heat.
2. Down feathers provide insulation. Contour feathers protect the body.
3. feathers; fused and hollow bones, air sacs, crop and gizzard, keen sight and hearing
4. Both birds and reptiles lay eggs with shells. Bird eggs have hard shells while the shells of reptiles´ eggs are flexible. Most reptiles do not incubate their eggs.
5. Flight requires a great deal of energy. If food was plentiful and there was little threat of predation, the birds may no need to fly.

Birdsnotes1

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