This natural arch was produced by:
a. heavy exposure to running water at the base of the rock.
b. erosion of softer minerals from the center of the rock.
c. excessive weathering caused by heat and pressure on top of the rock.
d. repeated exposure to wind on the lower parts of the rock.

3points hurry! what is the relationship between biotechnology, sharkskin, and disease resistance? bioengineers have developed an artificial sharkskin that does not allow resistant bacteria to grow on it. disease-causing microbes have been genetically modified to keep them from infecting the skins of sharks. scientists have created a device that can be attached to the skins of sharks that dramatically increases their abilities to resist disease. sharkskin produces many chemicals that can be collected and used to create antibiotics.

Which of the following is not a possible effectof increasimg carbon dioxide levels in the atmosphere ?

The illustration shown is an ovum, a female sex cell. a mutation in this cell may be passed to the woman’s offspring during a) birth. b) mitosis. c) dna replication. d) sexual reproduction