How to calculate the mass of carbon dioxide added by respiration each year

Why is species diversity important in an ecosystem?

Which of the following describes why most scientists today have adopted the three domain system for classifying organisms

Which of the following tissues, cells, or structures in flowering plants is a part of the sporophyte generation and therefore diploid? - generative nucleus - sperm - synergid - cell of endosperm - cell of an integument

Which statement represents a characteristic of an ecosystem that is not likely to sustain itself

In which part of the body would melanoma develop? lungs skin lymph nodes reproductive cells

Describe jean Baptiste Lamarck's idea of evolution

Explain why food needs to be digested before cells can use it for energy.

Which is an example of and internal stimulus 99 pts giveaway

What difference in traits is caused by chromosomes?

What is the difference between a gene and an allele? a. a gene is a form of a trait, and alleles make up genes. b. a gene is a sequence of bases in a dna molecule, and an allele is an alternative version of a gene that codes for the same feature. c.