The answer is D! birds have to migrate for winter to find an abundance of food! they learned this over time making it a learned adaptation
The system is called Taxonomy and was made by Swedish botanist Carlous Linnaeus
Answer:
False.
Explanation:
Protons are positively charged, so having more protons would make an atom positively charged. Electrons are negatively charged.
<span>The gene sequence containing an operator, promoter and repressor is known as an operon. These genes are called as structural genes. the operon is regulated by the presence/absence of the inducer such as glucose/lactose. It may also be a constitutive operon, which works all the time.</span>
