Answer:
The beak, bill, and/or rostrum is an external anatomical structure of birds that is used for eating and for preening, manipulating objects, killing prey, fighting, probing for food, courtship and feeding young. The terms beak and rostrum are also used to refer to a similar mouth part in some ornithischians, pterosaurs, turtles, cetaceans, dicynodonts, anuran tadpoles, monotremes (i.e. echidnas and platypuses, which have a beak-like structure), sirens, pufferfish, billfishes and cephalopods.
Explanation:
Electrons move through the electron transport chain from a higher to lower energy state. Energy release moves protons through channels in the membrane proteins, moving them into the inner membrane space. This leads to a buildup of positively charged protons, which creates an electrical potential across the membrane.
- https://www.google.com/amp/s/www.news-medical.net/amp/life-sciences/What-is-the-Electron-Transport-Chain.aspx
Answer:
Well selectively permeable means that the membrane selects what goes in and out of the cell
Explanation:
From the rules of base pairing, we know that Adenine always pairs with Thymine, and Cytosine always pairs with Guanine.
Adenine is denoted as A
Thymine is denoted as T
Cytosine is denoted as C
Guanine is denoted as G
Therefore if the base sequence is TCAAGT, then following the rule of base pairing, the complementary sequence to this will be AGTTCA
This strict arrangement is because only with this arrangement can hydrogen bonds form between these base pairs. Any other arrangement cannot sustain the integrity of the molecule.
Chloroplast, the food producer organelle of plants and some other organisms (but not animals), can be found in virtually all plants. They house Chlorophyll, a pigment which plays a key role in photosynthesis, which turns sunlight into energy for plants. Chloroplasts can be found in the leaves of trees, the leaves of vegetables, and in algae.
