1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Y_Kistochka [10]
3 years ago
7

5._____________________is factual information that results from a scientific investigation. A.bias B.data C.assumption D.none of

the above
Biology
1 answer:
Mnenie [13.5K]3 years ago
7 0
D would be the correct answer
You might be interested in
Please also describe how actin-binding sites are made available for cross-bridging with myosin heads during contraction.
yaroslaw [1]

Answer: The calcium ion binds to troponin, and this slides the tropomyosin rods away from the binding sites.

Explanation:

Contraction and relaxation of muscle cells brings about movements of the body. The contractile myofilament called sarcomeres are bounded at each end by a dense stripe called the Z - line, to which the myosin fibres are attached, and lying in the middle of the sarcomere are the actin filaments, overlapping with the myosin.

When action potential spreads from the nerve along the sarcolemma (muscle cell membrane), it penetrates deep into the muscle cell through the sarcoplasm (cytoplasm of muscle cell), and releases CALCIUM from the intracellular stores.CALCIUM triggers the binding of myosin to the actin filament next to it forming CROSS BRIDGES.

For this to occur, ACTIN BINDING SITE has to be made available. TROPOMYOSIN is a protein that winds around the chains of the actin filament and covers the myosin-binding sites to prevent actin from binding to myosin. The first step in the process of contraction is for calcium ions to bind to troponin so that tropomyosin can slide away from the binding sites on the actin strands.

3 0
2 years ago
Which of the following is a form of stored energy?
Crazy boy [7]

Answer:

heat energy

Explanation:

6 0
2 years ago
Read 2 more answers
Class Agatha have a common name that stems from their key characteristics. what is the common name?
astra-53 [7]
Jawless fish. The class Agnatha is a class made up of jawless fish. It excludes all vertebrates with jaws.
5 0
3 years ago
Wykonaj notatę w formie mapy myśli na temat: Znaczenie oceanów .Skorzystaj z informacji w podręczniku str.47 do 48 to jest z prz
madreJ [45]
I only read english



tysm though..
8 0
2 years ago
Who made the nimbus aircraft
Softa [21]

Answer:

short brothers

5 0
3 years ago
Other questions:
  • A ____is a piece of DNA that is transcribed.
    6·2 answers
  • Which is not a function of calcium in the body? blood clotting cofactor for many enzymes nerve function epithelium function musc
    9·1 answer
  • EXTRA CREDIT (3 points): Explain what is happening in this cartoon.
    13·2 answers
  • Make an inference about what happens to the matter and energy during the formation and breakdown of a complex carbohydrate molec
    6·1 answer
  • Which is the correct isotopic notation for a potassium ion that has 19 protons, 20
    11·1 answer
  • Which of the following correlation coefficients is less likely to occur?
    5·1 answer
  • One way that mining for mineral resources damages land is by
    15·2 answers
  • The process of grouping things based on their similarities
    13·1 answer
  • What is the answer to this question
    9·2 answers
  • Please i actually need help.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!