UPCAT: Biology Questions

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Question 1WRONG|
Rice, the staple food of many Filipinos, could be categorized to belong in: Kingdom – Plantae Phylum – Anthophyta Class – Monocotyledonae Order – Glumiflorae Family – Poaceae Genus – Oryza Species – Sativa   Both rice and corn belongs to the class Monocotyledonae, then they must also belong to the same _________. | Genus|

| Family|
| phylum|
| species|
Question 1 Explanation: 
if rice and corn belong to the same class, then they must also belong to the same phylum and kingdom. Question 2CORRECT|
Which of the following process maintains the carbon dioxide-oxygen cycle? | respiration|
| photosynthesis|
| fossil fuels|
| decomposition|
Question 2 Explanation: 
the carbon dioxide- oxygen cycle is maintained in the respiration of plants and animals. Question 3WRONG|
Based on the table below, which would best describe Class Aves? | Emperor Penguin| Common Raven|
Kingdom| Animalia| Animalia|
Phylum| Chordata| Chordata|
Class| Aves| Aves|
Order| Sphenisciformes| Passeriformes|
Family| Spheniscidae| Corvidae|
Genus| Aptenodytes| Corvus|
Species| forsteri| corax|
| It is a class for animals who can fly.|
| It is a class for feathery vertebrates.|
| It is a class for birds.|
| It is a class for animals with beaks.|
Question 3 Explanation: 
Birds are generally classified under class Aves. They are described as bipedal, endothermic, feathered and winged animals. Question 4CORRECT|
What can be said about a perfect flower?
| It has both petals and sepals|
| It has both male and female parts on the same flower|
| It is long-stemmed|
| It has radiant colors|
Question 4 Explanation: 
Perfect flower has both male and female parts. Some examples are dandelions and roses. Question 5WRONG|
One phylum of animals, the chordates, has been more intensively studied than has any other, because it comprises nearly all the world's largest and most familiar animals as well as humans. The feature uniting these animals is that at some stage in their lives, all have a flexible supporting rod, called a ___________. | notochord|

| redochord|
| phyochord|
| spina|

Question 6CORRECT|
This kingdom comprises of organisms with cell walls that has the same substance as that of the outer bodies of insects. | Kingdom Prokarya|
| Kingdom Fungi|
| Kingdom Protista|
| Kingdom Plantae|
Question 6 Explanation: 
The cell walls of fungi are made of the polymer chitin, not cellulose like plant cells, which is the same substance found in the exoskeletons of crustaceans and insects. Question 7CORRECT|
What do we mean when we say that “organisms with favorable variations reproduce more successfully than organisms with less favorable variations? | Use and disuse|
| Cross- breeding|
| Production|
| Survival of the fittest|
Question 7 Explanation: 
survival of the fittest: according to Darwin's theory of evolution, organisms that have adapted better to their environment reproduce more effectively than those that dont. Question 8WRONG|
Which of the following is the chemical name of Vit. B2?
| Riboflavin|
| Biotin|
| Folic Acid|
| Niacin|
Question 8 Explanation: 
Biotin – Vit. B7 Folic Acid – Vit B9 Niacin – Vit. B3
Question 9WRONG|
Which of the following is not a function of the skeletal system? | Endocrine regulation|
| Provides framework and support for the body|
| Protection of vital organs|
| Blood circulation|
Question 9 Explanation: 
Blood circulation is done by the circulatory system.
Question 10WRONG|
What are the waste products during cellular respiration?
| Water and solid waste|
| CO2 and salt|
| Salt and water|
| CO2 and water|
Question 10 Explanation: 
During cellular respiration, oxygen burns glucose to convert it to energy and the waster products are water and carbon dioxide. Question 11WRONG|
Which of the...
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