Lordsagna:
Which of the following is not self-luminous?

A. Incandescent electric bulb

B. Incandescent fluorescent tube

C. Lighted candle

D. The moon

E. The sun

Wetin i do?

Moon is not self luminous

awesomedammy:
Moon is not self luminous

how?...I thought moon is non luminous itself...lighted candle should be the ans na

Incandescent:

Wetin i do?

no vex bro

please does anyone know where I can get lamlad textbooks for chemistry, physics and biology or explicit biology, i have searched all book stores in Owerri but is not available there... thanks

Vitamin17:
please does anyone know where I can get lamlad textbooks for chemistry, physics and biology or explicit biology, i have searched all book stores in Owerri but is not available there... thanks

Do you mind PDF?..if not check this thread from the beginning and message Harrison.

Lordsagna:



Do you mind PDF?..if not check this thread from the beginning and message Harrison.

Yes but he said he does not have them anymore...

Vitamin17:

Yes but he said he does not have them anymore...

bro... you'll have to search for a bigger bookshop lamlad is not that scares na

Gemineye:
D

In the evolutionary trend, in which phylum do we begin to see a complete digest tract?
Options
A) ctenophora
B) Platyhelminthes
C) nematoda
D) mollusca

C maybe am not sure

Lordsagna:


In the evolutionary trend, in which phylum do we begin to see a complete digest tract?
Options
A) ctenophora
B) Platyhelminthes
C) nematoda
D) mollusca

D

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Gemineye:
D

Why's it D?

The most common characteristic of the fungal hyphae is the possession of
A. cell-like compartment with one nucleus each B. cell walls that are both rigid and chitinous C. a multicellular mycelium in the substrate D. cell-like partitions formed by cross-walls

someone should help here

Lordsagna:
The most common characteristic of the fungal hyphae is the possession of

A. cell-like compartment with one nucleus each
B. cell walls that are both rigid and chitinous
C. a multicellular mycelium in the substrate
D. cell-like partitions formed by cross-walls


someone should help here

A

Vitamin17:


A

Sex - linked genes are located on
A. Y - chromosomes
B. X - and Y - chromosomes
C. homologous chromosome
D. X - chromosome

Lordsagna:


Sex - linked genes are located on
A. Y - chromosomes
B. X - and Y - chromosomes
C. homologous chromosome
D. X - chromosome

B is correct...though most sex linked genes are located on the X, that's why males are susceptible to X linked diseases

Vitamin17:


B is correct...though most sex linked genes are located on the X, that's why males are susceptible to X linked diseases

Hermophroditic reproduction can be found among the
A. Arthropods and nematodes
B. Pisces and amphibians
C. Annelids and molluscs
D. coelenterates and platyhelminthes

The magnification of an object 2cm tall when placed 10cm in front of a plane mirror is
Options
A) 6.0

B) 1.0

C) 0.7

D) 0.6

Lordsagna:



Hermophroditic reproduction can be found among the
A. Arthropods and nematodes
B. Pisces and amphibians
C. Annelids and molluscs
D. coelenterates and platyhelminthes

D...

Lordsagna:
The magnification of an object 2cm tall when placed 10cm in front of a plane mirror is
Options
A) 6.0

B) 1.0

C) 0.7

D) 0.6

M =v =2/2=1

Vitamin17:


M =v =2/2=1

Nice one bro

Vitamin17:


M =v =2/2=1

In the microscope, the eyepiece lens merely acts as?
A. an inverter
B. a refiner
C. a diminisher
D. a magnifier

A magnified and virtual image of a near object is produced by
A. prism binoculas
B. astronomical telescope
C. periscope
D. simple microscope

Calculate the acceleration of the system (in terms of the acceleration due to gravity, g, when it is released.
Options
A) 0.38g

B) 0.13g
C) 0.15g

D) 0.39g

Lordsagna:


In the microscope, the eyepiece lens merely acts as?
A. an inverter
B. a refiner
C. a diminisher
D. a magnifier

The basic function of the microscope is magnification so the answer is D...

Lordsagna:
A magnified and virtual image of a near object is produced by
A. prism binoculas
B. astronomical telescope
C. periscope
D. simple microscope

D

Vitamin17:


The basic function of the microscope is magnification so the answer is D...

nice attempt bro... what's the difference between oviviparity, oviparity and viviparity?

An organism that has been extensively used to test the chromosomes theory of heredity is

A. Drosophila melanogaster

B. Muscar domestica

C. Zea mays

D. Homo sapiens

Lordsagna:



nice attempt bro... what's the difference between oviviparity, oviparity and viviparity?

Viviparity - young ie baby develops inside the females body obtaining nourishment directly from the mummy all mammals are viviparous few fishes and reptiles also...

Oviparity the eggs are shed into external environment ie outside, there the embryos will complete their development etc

Oviviparity

Lordsagna:
An organism that has been extensively used to test the chromosomes theory of heredity is

A. Drosophila melanogaster

B. Muscar domestica

C. Zea mays

D. Homo sapiens

A should be the answer am not sure o because Morgan used it to study chromosomes in the laboratory that drosophila is a fruitfly I have forgotten sha

Vitamin17:


A should be the answer am not sure o because Morgan used it to study chromosomes in the laboratory that drosophila is a fruitfly I have forgotten sha

u're right bro


Which of the following with respect to a body performing simple harmonic motion are in phase?

A. displacement and velocity of the body

B. displacement and force on the body

C. velocity and acceleration of the body

D. force acting on the body and the acceleration