Wednesday, 16 November 2016

QUIZ SLT ND1 AOCAY 2016/2017 SESSION



QUIZ QUESTION – SLT ND 1 AOCAY

1.        EUGLENA IS AN INTERMEDIATE BETWEEN PLANT AND ANIMAL EXPLAIN?
Euglena has a locomotory structure in the form of a flagellum, which is a property or characteristic of an animal. It can act both, as an autotroph as it contains chlorophyll and heterotroph as it feed on other substances. Also, in the presence of excess organic matter or darkness, it can act as a saprophytic organism.
2.        WITH THE AID OF A DIAGRAM STATE FIVE (5) BIOLOGICAL IMPORTANCE AND D TWO ECONOMIC IMPORTANCE OF Tilapia ziili?
DIAGRAM OF Tilapia zilli


ECONOMIC IMPORTANCE OF Tilapia zilli
Nutrition
  • Tilapia is a high protein fish that is low in carbohydrates. It has a low sodium content and contains healthy levels of phosphorus and niacin. It is also rich in selenium and vitamin B12, an essential vitamin for healthy cell function.
Low Mercury and Toxicity Levels
  • Unlike other oily fish that function on carnivorous or high animal protein omnivorous diets, tilapia survive on vegetables, seaweed and cereal grains. This, along with their rapid growth rate, short lifespan and quick turnaround, contributes to the very low levels of mercury they contain. Mercury is introduced in very small levels and does not have time to accumulate in their systems like other large, oily fish.
Cooking
  • Tilapia's mild flavor and light bodied texture make it the perfect fish for seasoning. Grilling and baking tilapia are the two most common methods of preparation. The versatility of flavor that can be applied to tilapia comes from marinades, oils and spices that all take well to the flaky, white meat. Tilapia is also available year-round, so you can always count on it being at the store when you want it for dinner.
Muscle Building
  • Tilapia is a key part of a muscle-building diet. For patients in recovery and therapy that are rebuilding muscle, people looking to build muscle to naturally burn body fat and people seeking strength-building foods, tilapia is used due to its rich levels of protein and low levels of fat. The USDA reports that tilapia contain 2g of fat per 3.5 ounces of fish. That's an amazingly low fat volume ratio.
Low Fat & Calories
  • Comparatively, tilapia contains about half of the calories of a similar quantity of salmon. For every gram of fat in tilapia, an equal quantity of salmon contains 7.9g of fat, and twice the calories. Tilapia is a lower-fat, non-oily fish that has fewer omega-3 acids than oily fish, but still provides many beneficial heart-healthy nutrients compared to other meat choices, such as chicken, pork or beef.
Economic Benefits
  • Because tilapia is a fast-growing fish that eats a diet of vegetables and cereal grains, it can be raised for much lower production costs, and turned over quicker for a profit. Its popularity stems largely from its affordable price, which is driven by tilapia's ability to grow quickly into marketable fish.
Aqucaulture
  • These economic benefits contribute largely to tilapia's influence on worldwide aquaculture. Their large size, quick growing habits and popular flavor have made tilapia the third most important aquaculture fish. They are easy to farm because of their vegetarian diet, high stocking density and fast growth.
BIOLOGICAL IMPORTANCE
Tail: use for change in direction
Fins: for movement in water
Eyes: for sight
Scale: for defense
4.        STATE THE GENERAL CHARACTERISTICS OF THE FOLLOWING
i.          Platehelminthes
Some defining characteristics of the phylum are that flatworms are:
 i.         acoelomate (they have no body cavity),
ii.         Triploblastic (the body has three tissue layers),
iii.       Bilaterally symmetric (they have symmetric right and left sides and usually a definite head),
iv.       They have organ systems, including an excretory, digestive
ii.         Molusca
  • Unsegmented soft body with bilateral symmetry.
  • Presence of an internal or external shell.
  • A toothed tongue (made mostly of chitin) called the radula.
  • A mantle which is a fold in the body wall that lines the shell.
  • Muscular foot (and/or tentacles in some).

iii.       Pisces
  • Fish live in water.
  • Fish have a backbone. They are vertebrates.
  • Fish breathe using gills. They absorb oxygen through the gills.
  • Almost all fish are cold - blooded.
  • Some fish have scales.
5.  OUTLINE THE PHYLUM HIERARCHY STARTING FROM THE MOST SIMPLEST TO COMPLEX ACCORDING TO EVOLUTIONARY TREND?
In biological classification, rank is the relative level of a group of organisms (a taxon) in a taxonomic hierarchy. Examples of taxonomic ranks are
Species,
Genus,
Family,
Order,
Class,
Phylum,
 Kingdom,
Domain, etc.
6.        DEFINE THE FOLLOWING?
Morphology: The study of forms and Structure of living things
Physiology: The branch of biology that deals with the normal functions of living organisms and their parts.
Ecology: the branch of biology that deals with the relations of organisms to one another and to their physical surroundings.
Anatomy: the branch of science concerned with the bodily structure of humans, animals, and other living organisms, especially as revealed by dissection and the separation of parts.
Genetics: the study of heredity and the variation of inherited characteristics.
Cytology: the branches of biology and medicine concerned with the structure and function of plant and animal cells.
Geology: the science which deals with the physical structure and substance of the earth, their history, and the processes which act on them.
Geography: the study of the physical features of the earth and its atmosphere,
and of human activity as it affects and is affected by these, including the distribution of populations and resources and political and economic activities.
Paleobotany: the study of fossil plants
Embrology; the branch of biology and medicine concerned with the study of
            Embryos and their development.

Dendrology: the branch of botany that is concerned with the natural history
 of trees and shrubs

Phytology: is the study of plant

Pomology: is the science that deals with fruit and its growth

Floristics: the study of the distribution, number, types, and relationships of
            plant species in an area or areas.