Human reproduction usually involves

(1) internal fertilization and internal development

(2) external fertilization and external development

(3) internal fertilization and external development

(4) external fertilization and internal development

Pretend that you are a carbon atom. Write a short story (around two paragraphs) that describes your journey through the carbon cycle. Be creative!

Describe how the protection of an umbrella species can be beneficial to an ecosystem

Which key difference do experiments have that correlation studies do not have?

Do all organisms in the food web need the suns energy to survive

Unlike bryophytes, ferns

Which of the following would be considered a benefit of overpopulation A the increase in genetic variation of a population B the exponential growth of a population C the exchange of genetic material between populations D the change in an ecosystem

Which degree of contusion is characterized by superficial and some deep tissue damage, mild to moderate weakness with no muscle spasm, moderate loss of function, ecchymosis and swelling, and decreased ROM?

How many chromosomes do humans have?

Pairing of homologous chromosomes in prophase of meiosis I appears to be critical for proper alignment, crossing over, and subsequent separation. This pairing is facilitated by the sharing of sequence homology between homologous chromosomes.

What does "leeward" mean?