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kkurt [141]
4 years ago
8

What is the microscopic anatomical make-up of skeletal muscles?

Biology
1 answer:
larisa [96]4 years ago
8 0

Answer:

Muscles at the microscopic level are made of actin (thin filament) and myosin (thick filament) fibers in alternation and parallel to each other.  During contraction, the fibres seem to slip against each other in opposite directions. Technically, the myosin head ‘walks’ on the actin – in an engage and release motion – with the help of ATP. Several actin and myosin fibers make up a myofibril. Each contractile unit in the myofibril is called a sarcomere – viewed as Z-discs at the microscopic level.

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A heron, a large wading bird, is hunting in a pond that contains three types of prey: fish, frogs, and snakes. All three types o
r-ruslan [8.4K]

The preferred prey item would be frogs.

What is optimal foraging theory?

It is a theory in ecology that proposes that predating animals that get the most energy from minimal efforts are favored by natural selection.

In order words, selection forces prefer investing minimum energy in order to extract maximally available energy.

In this case, the heron needs to use the lowest time to harvest the maximum energy possible. Since all the preys offer the same amount of energy, the one that requires the lowest time would be preferable for the heron.

In other words, frogs would be the most preferable prey.

More on foraging theory can be found here: brainly.com/question/16970714

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4 0
2 years ago
What percentage of babies have Brown and Blue eyes?
-Dominant- [34]

20 babies were born in the ward, 10 of them had blue eyes and the other 10 had brown eyes.

% of blue eyes babies is 50% and % of brown eyes babies is also 50% (10/20*100).

<h3>What is a Dominant trait?  </h3>

               

Brown eye color gene is a dominant trait, and it can express itself in  pure breed  condition as well as impure breed condition.

Blue eye color gene is recessive and can only express itself in pure breed recessive condition, the dominant gene repress the expression of the recessive gene phenotypically, but the genetic makeup remains the same.    

Hence, the blue-eyed babies have pure breed recessive genotype and brown eyed babies have pure breed   dominant genotype or    genotype.                                                                      

Learn more about Dominant and recessive traits

brainly.com/question/13735349

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8 0
3 years ago
Examples of temporary change
Nataly [62]
Temporary changes would be weather, since it can change at any givin time another example would be tides coming in because they vary by day, or wet sand becoming dry sand!
3 0
4 years ago
Are bunnies vegetarians?<br> A) yes<br> B) no
Kazeer [188]

Answer:

A. yes they eat plants and grass

Explanation:

7 0
4 years ago
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Complete each statement to make it true.
Fantom [35]

Answer:

Transport and throughout the plant.

B and A

Explanation:

8 0
3 years ago
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