Answer: Head attached with the foot.
Explanation: Class Cephalopoda are highly advanced and organized group of marine animals that have a distinctive characteristics of their head been attached to their body and they possess tentacles that is to say their head is completely merged with their foot with their arms or tentacles surrounding the head.
Their body plan includes the head, two eyes, a mantle, a siphon and a minimum of eight arms. Some examples are octopus, squid and the cuttlefish
Sodium(Na) has 11 electrons.
But Na⁺ has 1 electron less than a neutral atom of Na.
Answer: Na⁺ has 10 electrons.
Answer:
Likewise, scientists use radiometric dating to determine the ages of moon rocks, obtained by astronauts. Taken together, these methods give results that suggest an age for our Earth, meteorites, the moon – and by inference our entire solar system – of 4.5 to 4.6 billion years old.
Fur is an inherited trait of deers, but growing thick fur coats in winter may be an adaptive trait.
<h3>Inherited and acquired traits</h3>
Inherited traits are dictated by genes while acquired traits are not backed by any gene.
Traits may be acquired as a result of a continued adaptation of organisms in order to survive in an environment.
However, some traits evolve by natural selection as organisms continue to struggle in their environments. Such traits are selected for by forces of natural selection and have genes that condition them.
More on inherited and acquired traits can be found here: brainly.com/question/11936669