ZOO503 Midterm Current Solved Papers 2018

Solved MCCQs

Q1. Paleontology Originate from Greek word “Ontos” which means

(Creature)

Q2. Archaeopetyx is true missing link between

Q3. Trilobites dominated assemblages in England and Wales area were described by

Q4. Fossils in Fold belts are, except

Q5. Where an organism live matters in which of the filters is preservation of the complete fossil record

Q6. In Climate change in life history of earth has oscillated at least ----------- between icehouse and greenhouse conditions

(5 times)

Q7. Scala Naturae is ------------

Q8. When local ecological conditions affect the form of an organism during its life time and consequently fossil is called

Q9. Rohde and Muller (2005) argued that there is ---------- periodicity in mass extinctions (62 myr)

Q10. Modification of the Oparin ------------- Haldane biochemical model is

Other MCQs.. Protozoan body plan...sponges.. Chromistan are except...protozoa.. Chelicerates are diverse and heterogeneous includes...a)mites .b)scorpian..c)spiderd)..all Water vascular system in ...echinoderms The group of gastropods...cenozoic Fossil largest assemblagesof inadequate preserved fossils..

a) Fossil largersttaten are assemblage of?

1. vascular system is present in? echinoderms
2. chelicerate include? spiders,scorpions, all
3. acme group of gastropoda with neogastropods was in? paleozoic, mesozoic, phanerozoic

e) belly-footed mollusks are?

f) parazoans body plan present in?

g) most advanced mollusks are?

1. Q1: Paleontology Originate from Greek word “Ontos” which means

(Creature)

Q2. Archaeopetyx is true missing link between

Q3. Trilobites dominated assemblages in England and Wales area were described by

Q4. Fossils in Fold belts are, except

Q5. Where an organism live matters in which of the filters is preservation of the complete fossil record

Q6. In Climate change in life history of earth has oscillated at least ----------- between icehouse and greenhouse conditions

(5 times)

Q7. Scala Naturae is ------------

Q8. When local ecological conditions affect the form of an organism during its life time and consequently fossil is called

Q9. Rohde and Muller (2005) argued that there is ---------- periodicity in mass extinctions (62 myr)

Q10. Modification of the Oparin ------------- Haldane biochemical model is

Questions:

Q1. island biogeography...2

Island biogeography is the study of the species composition and species richness on islands

Q2. Defined as plankton less than 63 μm across, the smallest standard mesh size for sieves • Includes organicwalled and siliceous forms

Q3. sexual dimorphism...3

dimorphism, in which males and females may show different sizes, and different specialized features variations within species.

Growth stages, where there may be quite different larval and adult stages, or where body form alters during Variations Within the Species. Ecophenotypic effects • Where local ecological conditions affect the form of an organism during its lifetime

Q5. oldest fossil n their ages..5

The oldest eukaryote fossil may be Grypania, • A coiled, spaghetti-like organism that has been reported from rocks as old as 1.85 Ga The oldest locomotory trace fossils are from about 550 Ma northwest Russia • Fecal strings from rocks some 600 Ma suggesting

Bacteria in rocks up to 3.2 Ga, indicated by stromatolites

Q6. features of mollusca..5

The Phylum Mollusca can be traced back to at least the Late Precambrian, when Ki m b e r ell a

probably fed on algae in Ediacaran communities

Early Mollusks Characterized by some short-lived, unusual forms • Molluskan features: mantle, mineralized shell and radula • Members of the small shelly fauna

Triploblastic body plan 3 marks

Seen in most other animal • Has three layers of tissues from the outside in: the ectoderm, mesoderm and endoderm.

5- Where on earth the oldest rock are formed? What are their ages. 5 marks

The oldest rocks are from Canada and are dated at 3.8–4 Ga, and some mineral grains from Australia have even been dated to 4.4 Ga The archaeaneon: Lasted from about 4 to 2.5 Ga. • The oldest sedimentary rocks from the Isua Group in Greenland, dated at 3.8–3.7 Ga.

6- Deuterostomes 5 marks

“Second mouth” however, have a mouth arising from a secondary opening • True blastopore develops as anus • Echinoderm– Hemichordate Chordate (ppts)

Deuterostomia, (Greek: “second mouth”), group of animals—including those of thephyla Echinodermata (e.g., starfish, sea urchins), Chordata (e.g., sea squirts,lancelets, and vertebrates), Chaetognatha (e.g., arrowworms), and Brachiopoda(e.g., lamp shells)—classified together on the basis of embryological development (google)

What is paleontology(2)

The branch of science concerned with fossil animals and plants. • the study of fossils to determine organisms' evolution & ecology