Answer:
1. it's difficult
2.more harder
<u>Explanation</u><u>:</u>
lt have sense
<span>Species= a group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding. The species is the principal natural taxonomic unit, ranking below a genus and denoted by a Latin binomial.
</span><span>
Alpaca - Vicugna pacos
.Anole lizard - Anolis carolinensis.
Armadillo - Dasypus novemcinctus.
Bushbaby - Otolemur garnettii.
Cat - Felis catus.
Chicken - Gallus gallus.
Chimpanzee - Pan troglodytes.
Chinese hamster - Cricetulus griseus.</span>
Answer:
Cross-bridges would form in the absence of an action potential from a motor neuron.
Explanation:
The injected calcium ions would bind to troponin. Troponin would make tropomyosin move away from the myosin-binding sites on actin. The presence of free binding sites on the actin would be followed by the contraction cycle. This would include hydrolysis of ATP to energize myosin heads and binding of these heads to actin to form cross-bridges. Therefore, cross-bridge formation would occur without any action potential if calcium ions are injected directly into the muscle.
Different chemicals such as steroids, antibiotics, and aspartame just to name a few
