All the cells in a person's body have the same DNA and the same genes. However, the difference between cells in different tissues and organs is that the "expression" of the genes differs between cells. Expression means that the message from the DNA is being copied and made into protein.
Answer:
<u>Once the myosin-binding sites are exposed, and if sufficient ATP is present, myosin binds to actin to begin cross-bridge cycling. Then the sarcomere shortens and the muscle contracts. In the absence of calcium, this binding does not occur, so the presence of free calcium is an important regulator of muscle contraction.</u>
<h3><u>
</u></h3>
Answer: The correct answer for the fill in the blank is Asexually.
Asexually reproducing organisms have rapid rate of reproduction as only a single parent is involved in this. Also, there is no formation and fusion of gametes in this mode of reproduction.
They produce larger number of offsprings through rapid rate of reproduction. By doing so they have larger chances of survival.
For instance, if a part of bacterial species population is wiped out through viral infection, bacteria can compensate this loss by the rapid rate of reproduction. This increases their chances of survival.
The attitude that is NOT important in science is <u>b. having a closed mind.</u>
<h3>What is a closed mind?</h3>
A closed mind refers to a person who is not willing to consider different ideas or opinions.
A closed mind cannot engage in scientific inquiries.
Scientific inquiry helps scientists to study the natural world in diverse ways before proposing explanations based on the evidence derived from their scientific activities.
Thus, important attitudes in science include:
- Curiosity
- Creativity
- Skepticism.
- Honesty
- Flexibility
- Persistence
- Open-mindedness
- Tolerance of uncertainty
- Acceptance of the provisional nature of scientific explanation.
But, having a closed mind cannot help in science.
Learn more about attitudes in science at brainly.com/question/1843295
