If the element has not become an ion yet, then there is 73 electrons.
Number of protons = number of electrons**
**only when the element has not form an anion or cation.
The statement 'fish are able to swim faster in a group to avoid being caught by the predator' BEST describes the most likely reason that swimming in a group can help fish avoid a larger predator.
<h3>What is an adaptation?</h3>
An adaptation is an evolutionary strategy to increase the chances of surviving and reproducing in a given environment.
In this case, swimming in a group can minimize friction in the aquatic environment and thus swim faster.
Evolutionary strategies and adaptations may also be individual, but they always have the same objective.
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Answer:
The first one
Explanation:
because it has the most words on their.
During cell differentiation, new proteins are expressed
During cell differentiation, some genes are silenced while some or expressed. Different cells differentiate differently depending on the type of cell is going to become. This is why even though all the cells in a multcellular organism have the same DNA, they become different organ systems that look different.
Explanation:
Different differentiated cells produce different proteins because they express different genes. For example Cells of the epidermis of the skin express the genes for producing keratin (the pigment molecule) while those in the dermis do not express this protein because this gene is silenced in dermis cells. In addition, in dark-skinned people, these genes are more expressed that in people with light skin.
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The substance is your saliva
