Author Topic: NECO BIOLOGY (Read 1738 times)

JEFFREY96 · « **on:** November 18, 2014, 04:52:24 am »

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JEFFREY96 · « **Reply #1 on:** November 18, 2014, 02:25:44 pm »

WELCOME TO BIOLOGY ANSWERS ROOM.
BIOLOGY OBJ TYPE A:
1-10: BAECBDBBDA
11-20: BCEBBDBEAC
21-30: CCACBBCADB
31-40: CCDDACBDDD
41-50: CEEEEBAAAD
51-60: CBEAEAAAEB
(1a)
(i)
-Monkeys
-Fruit Bats
(ii)
-Fever
-Severe headache
-Muscle pain
-Weakness
-Diarrhea
(iii)
-avoiding contact with blood and body fluids
-educating themselves on recognizing the disease and preventing
it
-practicing careful hand hygiene, including washing hands with
soap and water or an alcohol-based hand sanitizer
-refraining from engaging in burial rituals that involve handling
the body of a person who died from Ebola
-refraining from handling items a person with Ebola has
handled, including clothing, bedding, needles, or medical
equipment.
(1b)
(i)
Erosion is the washing or blowing away of the topsoil by either
heavy rainfall or wind and thereby washing away the plant
nutrient
(ii)
-land use eg continous cropping
-climate eg heavy rainfall or wind
-Soil ie the soil type
(iii)
-Crop rotation
-Planting of cover crops
-Contour ploughing
==============================
(2a)
(i)
Algae;
-They are microscopic green plants
-They are mostly found in aquatic habitat
(ii)
Fungi;
-They non green plants
-They are saprophytic or parasitic
(ii)
-Transport of oxygen
-Temperature regulation
-Transpotation of digested food
-Transportation of excretory product
-Transpotation of homones
-Defence against infection
(2b)
(i)
Food chain is defined as d feeding relationshp involving d
transfer of energy through food from producers to consumers
(ii)
Grass->Grasshopper->Toad->Hawk
(iii)
Toad Secondary consumer)
Snake Tetiary consumer)
Grass;(Producer)
================================

(3ai)
-calyx
-corolla
-androecium
-gynoecium
(3aii)
-movement
-nutrition
-respiration
-excretion
(3bi)
continuous variation:
-height
-weight
dis continuous variation:
-fingerprint
-ability to roll tongue
(3bii)the contraction and relaxation of biceps and triceps bring about
bending and straightening of limbs. when an impulse is received
from the central nervous system, the biceps(flexors) contract by
becoming shorter and thicker, and at the same time, the triceps
(extensors) relax. since the tendons do not stretch, the
shortening of the biceps results in a pull of the radius and as a
result, the arm is bent.
On the other hand,when the triceps muscle(extensor muscles)
contract, becoming shorter and thicker at the sazme time, the
bicep muscles relax, a force is exerted on the ulna and the arm is
straightened as a result.

Earlyface

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Author Topic: NECO BIOLOGY (Read 1738 times)

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