it is question papers which is catergoriosed by each section. It is really helful as you do not need to sift through countless of papers as it is already doen for you. It is quick and easy to use and you will hopefully get a good grade as they repeat questions.
LIFE SCIENCES – GRADE 12
WINTER WORKSHOP
BY: TEACHER SHIREEN
JUNE 2021
QUESTION BOOKLET
PAPER 1
TOPIC PAGE
Reproduction in Vertebrates 2
Human Reproduction 5
Responding to the environment (Humans) 14
1|Page
, REPRODUCTION IN VERTEBRATES (8 MARKS)
QUESTION 1 (Questions taken from various sources)
Various options are provided as possible answers to the following questions.
Choose the correct answer and write only the letter (A to D) next to the question
number (1.1 to 1.5) in your ANSWER BOOK, for example 1.6 D.
1.1 An advantage of internal fertilisation is that …
A sperm and ova are protected within the female's body.
B there is better parental care.
C more gametes will be produced.
D the foetus receives food directly from the mother.
1.2 Which ONE of the following involves the development of the young inside
the uterus of the mother and where it receives nutrients through the
placenta?
A Ovipary
B Vivipary
C Ovovivipary
D Amniotic egg
1.3 Below is a list of terms relating to reproduction:
(i) Precocial development
(ii) Altricial development
(iii) Amniotic egg
(iv) Parental care
Which of the terms above refer to strategies used by birds that incubate
their eggs in a nest and feed their young until they are able to fly?
A (i), (ii), (iii) and (iv)
B (i), (iii) and (iv) only
C (ii), (iii) and (iv) only
D (i), (ii) and (iii) only
1.4 Which ONE of the following involves the hatching of fertilised eggs in the
body of a female, such that the young are born alive?
A External fertilisation
B Ovipary
C Vivipary
D Ovovivipary
2|Page
,1.5 The structure in the amniotic egg that removes waste products:
A yolk sac
B Chorion
C Amnion
D Allantois
QUESTION 2 (Questions taken from various sources)
Give the correct biological term for each of the following descriptions. Write only
the term next to the question number (2.1 to 2.6) in your ANSWER BOOK.
2.1 The structure that provides nutrients to the developing embryo in
oviparous organisms
2.2 The type of fertilisation where the ovum is fertilised inside the female
reproductive organs
2.3 A behavioural pattern of animals feeding their young and protecting them
from predators
2.4 Happens mostly in aquatic habitats when eggs are released from the
female's body and are sprayed with sperm
2.5 The type of development in birds where the young are incapable of
moving around on their own
2.6 The type of fertilisation associated with vivipary (6)
QUESTION 3 (Questions taken from various sources)
Indicate whether each of the statements in COLUMN I applies to A ONLY, B ONLY,
BOTH A AND B or NONE of the items in COLUMN II. Write A only, B only, both A
and B, or none next to the question number (3.1 to 3.5) in the ANSWER BOOK.
COLUMN I COLUMN II
3.1 A structure involved in gaseous exchange in the amniotic A Allantois
egg B Amnion
3.2 Advantage(s) of the amniotic egg A Provides nutrition
B Allows gaseous exchange
3.3 Embryo nourished from yolk found in the egg A Ovipary
B Ovovivipary
3.4 The young develops and is nourished in an amniotic egg A Ovipary
that is retained in the mother’s body B Vivipary
3.5 A reproductive strategy in vertebrates where internal A Altricial development
fertilisation occurs B Precocial development
(5 x 2) (10)
3|Page
, QUESTION 4 (KZN, Prelim 2018, Paper 1)
The diagram below shows a certain species of fish mating.
4.1 Identify the type of fertilization displayed by the fish species. (1)
4.2 State TWO visible ways in which the chances of fertilisation in these fish
are increased. (2)
4.3 Name the reproductive strategy used by these fish that involves the
production of eggs. (1)
4.4 Give TWO reasons why there is no need for the eggs of these fish to be
covered by a hard or leathery shell. (2)
(6)
QUESTION 5 (DBE, Feb/March. 2018, Paper 1)
The diagrams below represent organisms with different reproductive strategies.
5.1 Which diagram(s) (1, 2 or 3) represent(s) organism(s):
(a) Where external fertilisation takes place (1)
(b) Where extra-embryonic membranes develop to assist with the
protection
and nutrition of the embryo (2)
(c) Which is/are oviparous (2)
5.2 Name the type of egg produced by the organism represented in Diagram (1)
2 (6)
QUESTION 6 (LIMPOPO, Prelim 2018, Paper 1)
4|Page
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller aaminaefakir. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.09. You're not tied to anything after your purchase.
