Arthropods grow by partial shedding of their exoskeleton.
Explanation:
Arthropods grow by a process called molting or ecdysis which is shedding of their exoskeleton periodically and replacement of new bigger skeleton. Molting process usually happens along the posterior end at the tail region leading to elongation of the body.
The exoskeleton is made up of proteinaceous thin layer, epicuticle, and procuticile or inner chitin layer. This exoskeleton contains protein and minerals which makes it hard.
Although, the exoskeleton provides good protection, it becomes tough for an arthropod to grow along with the tough exoskeletion.
So, an arthropod’s body actually grows inside the exoskeleton, and as the body grows, the exoskeleton sheds off and replaced with newer ones. Molting is controlled by growth hormones like ecdysone present in their blood.
Answer:
The cell organelle, Mitochondria will be very abundant in the wing muscles of a hummingbird.
Explanation:
Mitochondria are known as the powerhouses of the cell. They are are membrane-bound organelles which are found within the cytoplasm of the cells. They are the site for cellular respiration in the cell. The take in nutrients and breaks them down to produce energy in the form of ATP.
Actively respiring tissues and organs possess an abundance of mitochondria which produces the energy required by these tissues and organs.
Since hummingbirds require a tremendous amount of energy to flap their wings so fast, therefore, mitochondria would be very abundant in the wing muscles of a hummingbird.
The answer is b.................
This is an example of CONDOMINANCY.
Condominancy is said to occur when two different alleles are combined together to form a different allele, in which the alleles are expressed equally and none of them is dominant. In the example given above, the black rat population mated with the white rat population to produce offspring that are grey in colour. Thus, the white and the black colour of the parents are not dominant, but are equally expressed to give gray colour.
Carrots because they is no space to planting chops