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BartSMP [9]
3 years ago
7

Do you guys Know what the red thingy is called that is in the neck of frigate birds?

Biology
2 answers:
Advocard [28]3 years ago
8 0

Males have gular pouches, which they inflate during mating season.

dlinn [17]3 years ago
3 0

The great frigate is more coastal (they catch most of their food up in the air by robbing other seabirds). Both Great and Magnificent birds are large black birds. The males are identifiable by their iconic, red leathery throat pouch (also called “red gular sac”). ... Magnificent males frigate have a purple sheen.

So it is the red gular sac

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The researchers' experimental hypothesis was that changes in actin and myosin overlap would alter the number of myosin cross- br
muminat

Answer:

The researchers' experimental hypothesis was that changes in actin and myosin overlap would alter the number of myosin cross- bridges that could form within a sarcomere, and specifically that (Primer Section Key Terms O)

A. Increases in overlap favor more cross-bridges to form, increasing muscle force. muscle force. effect on muscle force. fiber) lengths.

Explanation:

Physiologists Alfred Gordon and Fred Julian and Andew Huxley investigated on the strianed muscle´s contraction properties, to demonstrate the way the muscle lenght is affected by changes in overlap between myocin and actin causing the number of cross-bridges increase , increasing muscle´s force as well.

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I hope that helps! :)

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