Answer:
C
Explanation:
Membranes will allow and inhibit certain ions/molecules. I don't believe it can distinguish whether the molecules are harmful or beneficial!
Answer:
These changes can be caused by environmental factors such as ultraviolet radiation from the sun, or can occur if an error is made as DNA copies itself during cell division. Acquired mutations in somatic cells (cells other than sperm and egg cells) cannot be passed to the next generation.
Areas of study that try mimic science for cultural and commercial gain are called, Pseudoscience.
I think it’s the first one - a , but I could be wrong
Answer:
a difficult to identify
Explanation:
you can identify this type of fossil by the following-
distinctive, widespread, abundant, and limited in geologic time.