The half life of an element is 14 years how many years old The rock will be after two half-lives

Quiz: Human Impact on Ecosystems 8:Human Impact and Technology Introduced species often take over an ecosystem because they usually have more offspring have no competitors O make better predators O need fewer resources

Describe three human activities that may make slopes unstable

You observe a plant on your windowsill that is growing at an angle toward the outside. This is an example of a living thing: A) responding to stimuli. B) evolving. C) reproducing. D) maintaining homeostasis.

What is the primary difference between a peptide hormone and a steroid hormone?

What process reshuffles allele combinations between homologous chromosomes? a. genetic recombination b. asexual reproduction c. independent assortment d. mitosis

What term describes the class of molecules that includes starch and glycogen? lipids nucleic acids carbohydrates proteins

Which organisms are most likely to survive?

What bond is formed during dehydration synthesis between two amino acids?

What is one of the advantages, of reproducing sexually versus asexually?

Which conclusion about the meaning of Y is correct if the allele combination Yy is for yellow seeds? a. yellow and dominant b. green and recessive c. yellow and recessive d. green and dominant