The hypothesis is
<span>If more dry cells are connected end to end, a light bulb will work longer because there is more energy available.
The variables are
the number of dry cells connected end to end
the duration of the light bulb working</span><span />
She discovered that folate was crucial to sperm development. <span>It has been found that folate may have been the driving force behind the evolution of darker skin, factors such as clothing and climate affect the evolution of skin pigment. </span>
Answer:
2)Homologous Structures Humans Share With Animals
A dolphin's flipper, a bird's wing, a cat's leg, and a human arm are considered homologous structures. ... This structure serves as evidence of having a common ancestor, one that would have had a tail. All mammals share the homologous structure of the vertebrae in common.
3)WHERE IS THE DIAGRAM
Explanation:
Climate change threatens the air you breathe
Answer:
The prokaryotic chromosome is a single DNA molecule that first replicates, then attaches each copy to a different part of the cell membrane. When the cell begins to pull apart, the replicate and original chromosomes are separated.
