Answer:
a.The amount of noise
Explanation:
The dependant variable is the variable that changes when the science teacher leaves.
Independant variable would most likely be whether or not the science teacher is in the room.
Hope this helps!
Environmental science is a branch of biology focused on the study of the relationships of the natural world and the relationships between organisms and their environments. An example of environmental science is the study of the natural world and how it relates to recycling and mulching.
Answer:
The <u>vas deferens</u> transports mature sperm to the urethra in preparation for ejaculation.
There are four principles at work in evolution—variation, inheritance, selection and time. The theory of evolution by natural selection, first formulated in Darwin's book "On the Origin of Species" in 1859, is the process by which organisms change over time as a result of changes in heritable physical or behavioral traits.
