Obedience, because the dog should know when to attack and when to call down
Correct answer:
"<span>B- homologous chromosomes join together to form tetrads during prophase I"
</span>It is during prophase I that homologous chromosomes join together (<span>synapsis)</span> and form tetrads - four chromatids are together in the new structure of two chromosomes - and this is the reason why crossing-over occurs in this phase. It is in this tetrad that both arms of both chromosomes may crossover and matching regions exchange places. This process results in homologous chromosomes recombination leading to genetic variability.
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Answer:
Syrup
Explanation:
The arrangement according to density; Syrup, water,cooking oil and alcohol.
The higher the density the heavier the substance, therefore the substance with the highest density, sinks first and the substance with the lowest density is left to float.
A. Sharks store enough urea to match the total solute concentration of the surrounding seawater