Investigating cricket will reveals that some specie of the insect produce a song by rubbing their legs or wings against each other. In those specie that sing only the male insect produce songs.
This observation can be taken to mean that the male song is a potential form of communication to potential mates.
Answer:
D. the larva sheds its skin several times
Explanation:
At the end of the larval stage the insect will make a hard shell and inside it will become a pupa. At this stage the larva will stop eating and moving. The pupa appears lifeless, but one of Nature's most amazing transformations is happening.
Answer:
Father - AO
Mother - AO
Baby - OO
Explanation:
This question involves blood type in humans where blood types A and B are dominant over blood type O, but A and B codominant. In this blood group system:
- Genotypes AA and AO are phenotypically type A
- Genotypes BB and BO are type B
- Genotype AB is type AB
- Genotype OO is type O
According to this question, a man with type A blood marries a woman with type A blood. They have their first child as type O blood. This means that both parents of this child are heterozygous type A i.e. AO and AO. This is the only way the parents can have a child with type O (genotype OO). Hence,
Father - AO
Mother - AO
Baby - OO
All the cells don't have all of the intracellular structures because each and every cell do not need each and every intracellular structure. The plant cells have chloroplasts because they need to convert the light energy into chemical energy via the process of photosynthesis, the animal cells, however, have no such need, therefore, the animal cells do not have chloroplasts. Also, the erythrocytes do not have the cellular organelles in them which are present in the other body cells, because there is no need for the cellular organelles in them. The large vacuoles in plant cells is also a great example. The plants need the vacuoles for the metabolic processes, while most animal cells have no need for them.
Answer:
D. rough endoplasmic reticulum
Explanation:
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