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Feliz [49]
3 years ago
14

_____ is the component in a cats eye that reflects light and helps with night vision.

Biology
1 answer:
kykrilka [37]3 years ago
7 0
The part of their eye , located behind the retina ,called the Tapetum lucidum. It is reflective and helps the cat with night vision based on how light passes through it
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Analyzing the following tree, prove the relationship between ray-finned fish and crocodiles using the characteristics given belo
7nadin3 [17]

Answer:

The Ray- Finned Fish has a bony skeleton just like crocodiles. Crocodiles evolved more and adapted to their environment. Along the way Crocodiles grew to have four limbs, were born from an amniotic egg, and then their eggs also have shells, unlike the Ray-finned fish. Therefore the three characteristics they do NOT have in common are: Four Limbs, Amniotic Egg, and Eggs with Shells. The one trait they do have in common is Bony Skeletons. They also both have vertebrae.

7 0
2 years ago
For both actin and microtubule polymerization, nucleotide hydrolysis is important for ______. Group of answer choices promoting
jarptica [38.1K]

Answer:

For both actin and microtubule polymerization, nucleotide hydrolysis is important for decreasing the binding strength between subunits on filaments.

Explanation:

Cytoskeletal filaments are common to eucaryotic cells and are impotartant to the spatial organization of cells. Intermediate filaments provide mechanical strength and resistance to shear stress. Microtubules determine the positions of membrane-enclosed organelles and direct intracellular transport. Actin filaments determine the shape of the cell's surface and are necessary for whole-cell locomotion. A large number of accessory proteins are present that link the filaments to other cell components, as well as to each other. Accessory proteins are essential for the assembly of the cytoskeletal filaments in particular locations, and it includes the motor proteins that either move organelles along the filaments or move the filaments themselves.

Actin filaments and microtubules are assembled with expenditure of energy i.e the ATP/GTP tightly bound to actin/tubulin is irreversibly hydrolyzed to ADP/GTP during the assembly process, and liberation of Pi in the medium occurs subsequent to the incorporation of subunits in the polymer. Pi release acts as a switch, causing the destabilization of protein-protein interactions in the polymer, therefore regulating the dynamics of these fibres. The progress is made in four areas: the chemistry of the NTPase reaction; the structure of the intermediates in nucleotide hydrolysis and the nature of the conformational switch; the regulation of parameters involved in dynamic instability of microtubules; and the possible involvement of nucleotide hydrolysis in the macroscopic organization of these polymers in highly concentrated solutions, compared with the simple case of a equilibrium polymers.  

4 0
3 years ago
What is a sound wave?
Svetllana [295]
A sound wave is A wave of compression and rarefraction . 
5 0
2 years ago
Read 2 more answers
Are the 1st three correct and help.with the rest?
klasskru [66]
Hello there,
#5- Proteins
#6- is incorrect the answer is-->> ATP synthesis 
#8- Photosynthesis
#9- Cell recognition components

Hope this help,
Have a nice day!
8 0
3 years ago
What determines which individuals will survive and pass their traits on to the next generation?
Karolina [17]

Answer:

Natural selection

Explanation:

this is where the term "survival of the fittest" comes from. The toughest survive and make offspring and the weak don't.

8 0
2 years ago
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