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.
No cross-bridge disruption is caused, nor litlle differences or minimal overlap so B, C and D options are not correct.
Natural selection is when the more and better adapted organisms survive to reproduce and the weaker and less adapt die.
Answer;
Yes. The benefit of a mutation can help it survive in a particular environment.
Explanation;
-Mutations are changes in the genetic code of an organism. There are different types if mutations, and they typically occur when DNA is being replicated and something goes wrong during the replication process, causing a base pair or set of base pairs to be changed somewhere in the DNA strand.
-Though mutations can be harmful, mutations can also be beneficial. In fact, beneficial mutations are the basis for evolution. When a mutation occurs that makes an organism better suited for its environment, then the organism is better able to survive and reproduce and the mutation can be passed along to the organism's offspring. This type of actively beneficial mutation is rare, but it does occur.
This statment is false the pen on a seismograph does not swing freely.
I think C because if the shell was the same for every tortise it wouldnfit there environment
