ANSWER IS C
C. The joining of an egg and a sperm
Explanation:
Fertilisation
is the fusion of haploid gametes, egg and sperm, to form the diploid zygote. Note though there can be subtle differences in the fertilization process which occurs naturally within the body or through reproductive technologies outside the body, the overall product in both cases is a diplod zygote
I think its 60 years old idk though
<span>Constricted air passages and higher air pressure in the lungs at maximum inhalation</span>
Answer: The automatic response to tensing your muscles after you hear the sound of the clanking the rollercoaster makes is an example of the phrase pavlov's dogs, which can refer to classical conditioning because it refers to the habit of automatic response to a stimulus.