2021 WAEC Biology Questions & Answers Obj & Essay Runz

2021 Waec biology questions and answers

2021 WAEC Biology Objective & Essay Questions and Answers Expo Runz, WAEC 2021 Biology Paper 2 & 1 Expo, Free WAEC 2021 Biology Objective & Essay Runz, WAEC 2021 Biology Objective & Essay Solutions Answers – August/September. 2021 WAEC Objective & Essay Expo, WASSCE Biology Objective & Essay Answers Verified 2021.

Are you among those looking for where to get WAEC Biology Objective & Essay questions and answers online? Search no more because this article is for you. Check how to get WAEC 2021 Biology Objective & Essay before the exam below.

Correct 2021 WAEC Biology Questions and Answers Objective & Essay now available.

Text or WhatsApp us @ 09038588742 to subscribe and get it immediately.

Today’s WAEC Biology questions and answers 2021 solution.

EXAMSPOT.NET TEAM, ASSURE YOU NOTHING LESS THAN B2 IN THIS Biology. So, it’s left for you to subscribe to it.

Please read below carefully to know how to subscribe to it.

HOW TO SUBSCRIBE FOR 2021 WAEC Biology Objective & Essay

i. DIRECT TO MOBILE AS SMS:- On this Direct mobile package, we will send the Objective & Essay answers directly to you through text message to the number you used for subscription before your exam time. 

>> Send N800 MTN CARD to 09038588742 with the Subject’s name, phone number, and phone number; I paid for the text message package.

ii. WhatsApp Package:- For the WhatsApp package, you will get both the questions and answers directly to your WhatsApp before Exam.

>>> Send N500 MTN CARD to 09038588742 Subject’s name, phone number, and I paid for the WhatsApp package.

iii. Link / Password Payment:- On this subscription package, a password or pin will send to you through text message to the number you used for the subscription. It’s the password that you will use to unlock the answer page and see the answers online.

>Send N500 MTN CARD to 09038588742 Subject name, phone number, and a message I paid for the online password.

Our Online/Link Subscribers Will Get Their answers on EXAMSPOTANSWERS.NET

================================

CLICK HERE TO VIEW THE ANSWERS

================================

The subscription price is affordable, so don’t let this token amount make you fail this exam.

WARNING:- They will be no room for free answers because we will not share them here.

Serious ones have started subscribing. Other Subjects are available, and we are ready to give you the best answers.

Text or WhatsApp us @ 09038588742

Make Sure you Subscribe if you need our assistance.

You can be getting questions and answers for other Subjects at midnight before the exam; text or WhatsApp us @ 09038588742 for more info.

Get 2021 WAEC English Language Answers with Questions before the exam.

Biology Objective & Essay, WAEC for 2021 Biology Objective & Essay questions and answers that we are writing today, WAEC Biology Objective & Essays today, is Biology Objective & Essay of WAEC 2021 out?, Biology Objective & Essay for WAEC 2021 2 & 3 paper, 2021 WAEC Solved Objective & Essay WAEC for Biology, Correct Biology Objective & Essay questions and answers pdf 2021, WAEC Objective & Essay Biology 2021, Free WAEC 2021 Biology Objective & Essay answer.

Sample of Biology Waec answers 2021

(1a)
-Single/independent free living organism eg amoeba
-As a colony e.g volvox
-As a filament
e.g spirogyra

(1b)
-Amoeba
-Volvox
-Spirogyra

(1ci)
-Plant cell are rectangular in shape while Animal cell are spherical in shape
-Plant cell contain chloroplast while animal cell do not contain chloroplast
-Plant cell contain cell wall while animal cell do not contain cell wall
-Plant cell nucleus is at the side while the animal cell is at the middle

(1cii)
-They both have nucleus
-They both have mitochondrion
-They both have endoplasmic reticulum

(2a)
Mouth,Oesophagus,Stomach,Duodenum,Small intestine,Caecum,Appendix,Large intestine,Rectum,Anus

(2bi)
TABULATE
Alimentary canal of birds|Alimentary canal of man

-There is presence of crop |Crop absent
-There is presence of proventiculus |Proventiculus absent
-There is presence of gizzard |Gizzard is absent

(2bii)
-Both have caecum
-Both have Oesophagus
-Both have duodenum

(2c)
Herbivore posses heterodant type of dentition in which they posses teeth of different shapes and sizes.Herbivores feed mainly on vegetable hence its teeth is 28 in numbers.Its incisors are flat with sharp cutting edges for cutting vegetables or grasses .canine is absent.the space creates due to absense of the canine is called diastema.
Diastema allows manipulation of grasses in the mouth.It has a very large molar and premolar closely packed and have very large ridged surface area for cutting and grinding

2d)
-They help in regulation of blood sugar by producing insuling and glucagon
-They help in digestion

(3ai)
A habitat comprises of an organism immediate environment or where it lives or resides

(3aii)
-They help in the decay of the organisms

-They also help to return certain substances like gases eg Nitrogen to the atmosphere thereby regulating certain biological processes such as the Nitrogen cycle,carbon cycle

-Some of the substances released are important in processes such as respiration,photosynthesis

(3b)
Energy flows basically from the producers in a fresh water habitat to the consumers.The producers usually are phytoplanktons which are taken up by the primary consumers usually small fishes.

The primary consumer are taken up by the secondary consumers which are larger fishes such as sharks.This sharks may inturn be taken up by man which is the tertiary consumer

SCHEMATIC DIAGRAM
Phytoplanktons->Small fishes->Sharks->Man

(3c)
-They causes diseases such as rice smut,black pod of cocoa which may lead to waste
-They also reduce the economic value of plants leading to financial loss

(3cii)
-They help in fermentation of certain substances like yughourt eg lactobacillus species

-They help in decomposition and decay of substances eg sprophytic micro organism

-They causes diseases eg smallpox and chicken pox hence have been useful tools in the development of antibiotics and vaccines

-They are useful in certain biological processes eg photosynthesis

-They are used in sewage treatment
-Sources of enzymes

6a)
-Tactic movement movement is found in some plant and animals while nastic movement is found in plants alone
-Tactic movement rsponse to directional stimuli while nastic movement respond to non directional stimuli

6bi)
-Euglena
-Chlamydomonas

6bii)
-Mimosa plant
-Sunflower

6ci)
-Regular cleaning
-Exposure to fresh air
-Eating balanced diet
-Regular exercise

6cii)
-Temperature
-pressure
-Pain
-Cold

6d)
-High temperature affect evaporation and reduces performance
-High temperature may lead to seed dormancy
-It leads to loss of soil nutrients through evaporation
-It affects the ripening and maturity of plant
-it is necessary for germination of seeds

6ei)
Courtship behaviour refers to the instructive behaviour on response to certain external stimuli in animals.It is the pattern of behaviour that preceeds mating and reproduction in animals.It is performed by male and female organism

6eii)
-pairing
-Teritoriality
-Display

6f)
-Holozoic nutrition
-Amoeba
-Entamoeba histolytica
-Humans

6g)
Crime detection using finger print method: this applies to forensic.In this method,individuals having different finger print pattern can be identified using database of stored information of such individuals.These method correctly identifies such individuals aptly and is useful in crime detection

2021 WAEC EXPO Biology Objective & Essay QUESTIONS AND ANSWERS

2021 WAEC Biology PAPER 2 & 1 QUESTIONS AND ANSWERS

WASSCE Biology Objective & Essay Answers – 2021 August/September Expo

 

Be the first to comment

Leave a Reply

Your email address will not be published.


*