mitochondria
cytoplasm
nucleus
ribosomes
Correct answer is A
No explanation has been provided for this answer.
12
24
35
48
Correct answer is C
No explanation has been provided for this answer.
Which of the following methods is appropriate for the cultivation of cassava?
Budding
Fragmentation
Root cutting
Stem cutting
Correct answer is D
No explanation has been provided for this answer.
Some animals return to water bodies to reproduce because
natural enemies destroy their eggs on land
water nourishes their embryos and their young ones
they are close to their ancestors and imitate them
the temperature on land is not suitable for the development of their embryos
Correct answer is D
No explanation has been provided for this answer.
The testes in male mammals descend into the scrotal sac because
there is congestion in the lower abdomen
they run the risk of being destroyed
they need special support
they require a relatively low temperature
Correct answer is D
No explanation has been provided for this answer.