Which evolutionary plant innovation eliminated the need for sperm to swim through water to fertilize an egg, resulting in plants being truly adapted for reproduction on land?

How do living systems obey the Law of Conservation of Mass? Explain in at least 3 sentences.

Which of the following structures is found in eukaryotic but NOT prokaryotic cells? (eText Concept 6.2) -plasma membrane -mitochondria -DNA -cytosol -ribosomes

Fly species w, found in a certain part of the island, produces fertile offspring with species y. species w does not produce fertile offspring with species x or z. if no other species can hybridize, then species w and y

Secrete a hormone that controls the blood calcium level

Melanoma is the type of cancer and was abnormal skin cells divide uncontrollably some chemotherapy drugs would stop dancing directly interfere with the process of

Which statement best describes the relationship between activation energy and rate of reaction? O Increasing the activation energy can increase the rate of a reaction. O Reducing the activation energy can increase the rate of a reaction.

Definition: this is a haploid cell with half the reproductive information from the parent.

Does a cell use energy when molecules diffuse in or out of the cell? Why?

Below is a list of possible challenges. Check all errors that you mentioned in your answer. Traits other than beak type might affect natural selection. It could take many generations to observe adaptions to a population.

A farmer dug a well but did not find any water Which reasons most likely explain why the farmer did not find water? Check all that apply.