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bonufazy [111]
3 years ago
14

Which of the following chemicals opens us binding sites allowing muscle filaments to connect to each other? Select one:

Biology
1 answer:
HACTEHA [7]3 years ago
3 0

Answer:

The correct answer will be option-D.

Explanation:

Calcium plays an important role in muscle contraction as they are released from the sarcoplasmic reticulum after they receive electric impulse.

Calcium triggers the muscle contraction cycle as these calcium ions bind to the troponin-tropomyosin complex. This binding exposes the myosin-binding site on the actin on which high energy myosin binds and cross-bridge is formed.

This cross-bridge formation causes the contraction of the sarcomere and therefore muscle contracts.

Thus, option-D is the correct answer.

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Which of these body cavities is a long, continuous cavity located on the back of the body?
densk [106]

Dorsal Cavity

Explanation:

The body cavity that is long, continuous and located in the back of the body is the Dorsal cavity

8 0
3 years ago
The class of disorders marked by extreme and inflexible characteristics that often cause impaired social and occupational functi
Inessa05 [86]

Answer:

Personality.

Explanation:

The mental disorders affects the thinking ability of the individual. The mental disorder individual shows abnormal behavior in the society and might feel anxiety or feel awkward among the people.

The personality disorder is a type of the mental disorder in which the individual have unhealthy thinking level. This disorder affects the social status and his personality in the society. The occupational functioning become improper and requires the proper medical treatment.

Thus, the answer is personality.  

4 0
3 years ago
What type of mutation is shown in the diagram
Lera25 [3.4K]
The answer should be C. insertation
5 0
3 years ago
Why does the western coast of the United States have<br> moderate temperatures all year-round?
zvonat [6]

Placement on the equator

3 0
3 years ago
Orchid seeds are tiny, with virtually no endosperm and with miniscule cotyledons. If such seeds are deposited in a dark, moist e
Xelga [282]
<h2>c.is the correct option</h2>

Explanation:

Fungi might assist in seed germination by providing the embryos with some of the organic nutrients the fungi have absorbed

  • Fungi is an eukaryote which digests food externally and absorbs nutrients directly through its cell walls
  • Fungi absorb nutrients through following three ways:
  • By decomposing dead organic matter: obtains its nutrients from non-living organic matter, usually dead and decaying plant or animal matter, by absorbing soluble organic compounds
  • By feeding on living hosts:fungi live in or on other organisms and get their nutrients from their host
  • Living mutualistically with other organisms: mutualistic fungi live harmlessly with other living organisms;fungal component absorb water and minerals and provide them to algal component which uses them to make food

In dark,moist environment nutrient availability is less hence fungi helps in providing orchid seeds the nutrients which it has absorbed

8 0
3 years ago
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