Explanation:
it is (A sexual ) as the sexual reproduction involve the fusion of gametes there is no fusion of gametes which requires two plant , there is only one which produces the other one ( I hope this might help you )
Answer:
The change in frequency of an existing gene variant or allele in a population due to random organism sampling.
Explanation:
<span>ecosystems , is your answer if I'm not wrong
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Answer:
Annelida.
Explanation:
The non chordate organisms are classified into 10 different phylum. These organisms are classified into different phylum by looking at the similarities and differences shown by the organism.
The organisms that are involved in the phylum annelids shows the distinguish characteristics of the organisms of other phylum. The organism shows closed circulatory system, body is segmented and no mantle cavity is present. They are true coelomic animal, shows protostomic development in which mouth develops first and anus later. They have appendages that are not jointed with each other.
Thus, the correct answer is option (d).
Answer:
A myosin head bound to actin
Explanation:
Cross bridge cycling explains the sliding filament theory according to which thin and thick filament slide against each other for muscle contraction. The two myosin heads extend form the thick filament. One myosin head has binding site for ATP and other head has binding site for actin from thin filament.
When myosin head binds to actin a cross bridge is formed. When ATP binds to the other head the bridge dissociates. Actin binding site is free and myosin tries to bind with other actin during which ATP is hydrolysed into ADP and Pi. Myosin along with the ADP and free Pi successfully binds to another actin molecule. The cross bridge formed generates a powerful force and ADP and Pi are displaced from it. The cross bridge is now free again for binding of next ATP molecule and the cycle continues.
