Answer: The stage of metamorphosis this occurs is called the PUPA stage. The correct option is D.
Explanation:
Metamorphosis can be defined as the change in form, mode of life and behaviour that occurs during embryonic development of an organism. In the metamorphosis of insects, which mostly reproduce sexually, insects can be grouped according to the way the eggs develop into adults. Some show:
--> Complete metamorphosis or
--> Incomplete metamorphosis.
In the life cycle of a butterfly, a COMPLETE metamorphosis occurs. This is because after fertilization, the EGG hatches into LARVA which passes through a PUPAL stage before becoming transformed into an ADULT insect. That is:
Egg --> Larva --> Pupa --> Imago.
When the caterpillar, which is the Larva stage, has reached its full size, it spins a pad of silk on a twig. It moves upward and attached it's clasper to this pad. It spin another silk thread at the thorax. These aids it to assume a slanting position with the head end pointing upwards. The pupa stage called the CHRYSALIS is reached when it tucks it's head under its thorax, arches it's body, shortens and broadens, and moults for the last time. Therefore the correct option is D (pupa).
Answer:
The α‑helix is held together by hydrogen bonds between the amide N−H and C=O groups.
Disulfide bonds stabilize secondary structure.
Explanation:
Proteins have primary, secondary, tertiary and quartinary structures.
The secondary structure of a protein is the regular, recurring sequence of amino acid in a polypeptide chain. Secondary structure of proteins give rise to the folding observed in the structure of a protein.
The major secondary structures of a protein are α-helices and β-structures.
Answer:
how strong it is
Explanation:
Seismographs are not able to say when earthquake will happen, but they help humans to know how strong it is or if it is happening or not
answer: combustion
C3H6O + 4 O2 → 3 CO2 + 3 H2O = COMBUSTION
53 grams of sodium carbonate, 22 grams of carbon dioxide and 9 grams of water.
<h3><u>Explanation:</u></h3>
The amount of production of the products from sodium bicarbonate will depend on the molar weight of sodium bicarbonate. The molar weight of a compound is defined as the weight of 1 mole number of molecules of that compound. To determine the molar weight of a compound the easiest process is to add the the atomic weights of individual atoms present in the compound and thus we can obtain the molar weight of the compound.
Molar weight of sodium is 23. The molar weight of hydrogen is 1. The molar weight of carbon is 12. The molar weight of oxygen is 16. So in a molecule of sodium bicarbonate there are one atom of sodium, one atom of carbon, one atom of hydrogen and three atoms of oxygen. So molar weight of sodium bicarbonate becomes 
.
So 42 grams of sodium bicarbonate contains half mole of sodium bicarbonate.
Molar weight of one mole of sodium carbonate is 
= 106.
Molar weight of carbon dioxide is 
= 44.
Molar weight of water is 
=18.
Show total amount of products produced will be 53 grams of sodium carbonate, 22 grams of carbon dioxide and 9 grams of water.
