NSC Life Sciences Reproduction in Vertebrates: 1.1 Which ONE of the following i

Question

1.1 Which ONE of the following is a reproductive strategy in birds where the young are born fully dependent on the parents?  
A. Precocial development  
B. Altricial development  
C. Ovoviviparity  
D. External fertilization

1.1.2 The diagram below represents events during human reproduction.  
In which part of the female reproductive system will the events shown in the diagram above occur?  
A. Fallopian tube  
B. Cervix  
C. Vagina  
D. Ovary

1.1.3 The following is a list of components associated with the nervous system:  
- Sympathetic nervous system  
- Spinal nerves  
- Sympathetic nervous system  
- Cranial nerves

Which ONE of the following combination of components forms part of the peripheral nervous system?  
(i) only  
(ii) only  
(iii) only  
(iv) only  
(i) and (ii)  
(iii) and (iv)

1.2.1 The blood vessel in the neck that contains receptors which are sensitive to carbon dioxide levels in the blood.  
1.2.2 A reproductive strategy where the development of the fetus occurs inside the uterus of the mother.  
1.2.3 Photoreceptors that react to low light intensity and are responsible for black and white vision.  
1.2.4 The structure that develops from the remains of the Graafian follicle in the ovary.  
1.2.5 The part in the male that stores sperm cells until maturation.  
1.2.6 The part of the ear that receives sound waves from the auditory canal.  
1.2.7 The structure in males that secretes testosterone.  
1.2.8 A hormone that stimulates the production of milk in humans.

1.3 Indicate whether each of the descriptions in COLUMN I apply to A ONLY, B ONLY, BOTH A AND B or NONE of the items in COLUMN II. Write A, B, both A and B or NONE next to the question numbers (1.3.1 to 1.3.3) in the ANSWER BOOK.  
1.3.1 A plant hormone that stimulates:  
1.3.2 A hormone that impacts the mammary glands in the reproductive process:  
1.3.3 A hormone that is responsible for the drainage of fluid from the middle ear.

1.4 The diagram below represents parts of the central nervous system.  
1.4.1 Name the TWO components of the central nervous system shown in the diagram.  
1.4.2 Identify part:  
(a) B  
(b) D  
1.4.3 Give the LETTER and NAME that controls:  
(a) The heartbeat  
(b) Voluntary actions

1.5 The diagram below represents a homeostatic mechanism in the human body when water levels are low.  
Identify:  
(a) The part of the brain where the osmoreceptors are located  
(b) Gland Z  
(c) Hormone Y  
(d) Structure X  
1.5.2 State whether the volume of urine produced will increase or decrease for this individual.

1.6 The diagram below represents a stage in human fetal development.  
Identify:  
(a) Fluid A  
(b) Structure C  
1.6.2 Name:  
(a) The blood vessel in part B that transports oxygen to the developing fetus.  
(b) TWO structures that play a role in the formation of structure C.

1.1 Which ONE of the following is a reproductive strategy in birds where the young are born fully dependent on the parents? A - NSC Life Sciences - Question 1 - 2024 - Paper 1

Worked Solution & Example Answer:1.1 Which ONE of the following is a reproductive strategy in birds where the young are born fully dependent on the parents? A - NSC Life Sciences - Question 1 - 2024 - Paper 1

Which ONE of the following is a reproductive strategy in birds where the young are born fully dependent on the parents?

In which part of the female reproductive system will the events shown in the diagram above occur?

Which ONE of the following combination of components forms part of the peripheral nervous system?

The blood vessel in the neck that contains receptors which are sensitive to carbon dioxide levels in the blood.

A reproductive strategy where the development of the fetus occurs inside the uterus of the mother.

Photoreceptors that react to low light intensity and are responsible for black and white vision.

The structure that develops from the remains of the Graafian follicle in the ovary.

The part in the male that stores sperm cells until maturation.

The part of the ear that receives sound waves from the auditory canal.

The structure in males that secretes testosterone.

A hormone that stimulates the production of milk in humans.

A plant hormone that stimulates:

A hormone that impacts the mammary glands in the reproductive process:

A hormone that is responsible for the drainage of fluid from the middle ear.

Name the TWO components of the central nervous system shown in the diagram.

Identify part: (a) B

Identify part: (b) D

Give the LETTER and NAME that controls: (a) The heartbeat

Give the LETTER and NAME that controls: (b) Voluntary actions

The part of the brain where the osmoreceptors are located

Gland Z

Hormone Y

Structure X

State whether the volume of urine produced will increase or decrease for this individual.

Identify: (a) Fluid A

Identify: (b) Structure C

Name: (a) The blood vessel in part B that transports oxygen to the developing fetus.

Name: (b) TWO structures that play a role in the formation of structure C.

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