A) it must be human or e) its gametes must have 23 chromosomes
D.
variable-ratio schedule of reinforcement.
Answer:
The structure labeled A is the substrate. The enzyme is the black colored thingy on the bottom.
Answer:
The stages of human life can be written as:
- Infancy: It is the time period between birth and the age of one year.
- Toddlers: It represents the child between 1 to 3 years of age.
- Childhood: Children between the age group of 4 to 8 years old are referred to being in childhood.
- Puberty: It is the time period in which children mature sexually. It represents the children which are 9 to 13 years old.
- Adolescents: These are also termed as teens as the age bracket is thirteen to eighteen years old.
- Adulthood: The age range from 19 to 50 years.
- Old age: It represents the people which are 51 plus in age.
Molecular Biology
This field of study deals with everything related to macromolecules, thus, what you will need for molecular biology would be something you could get proteins and nucleic acids from. Among the choices, the DNA of a pig and a calf would be the most helpful.
Comparative Anatomy
Comparative anatomy is a field of study that focuses on any similarities or differences between the anatomy or structure of different animals or species in general. Among the options, having the limb structure of a pig and a calf would allow you to practice the field since you have a structure to compare.
Developmental Biology
In this field, your concern would be how species grow and develop. For you to properly observe the growth and development, you must have the embryo of a pig and a calf. Therefore, among the options, this is the correct piece of evidence for this field.
IN SUMMARY:
Molecular Biology - Both DNA of a pig and a calf
Comparative Anatomy - Both limb structure of a pig and a calf
Developmental Biology - Embryo of a pig and a calf
