A paleontologists finds a plant fossil that shows evidence of a vascular structure. what can the paleontologists conclude.

A. It was a land plant B. It was a sporophyte C. It was an ocean plant D. It was a gametophyte

Protists are the primary producers in an ocean. This would be an example of what factor? A. food production B. abiotic C. biotic D. temperature

Which organs perform both mechanical digestion and chemical digestion of food? mouth pancreas small intestine stomach

What is the most likely outcome for a cell that is not allowed to divide?

What is the energetic relationship between an organism and its surroundings?

Unlike mosses and ferns, seed plants are able to live on mountains and in deserts. Why did this ability allow seed plants to replace mosses and ferns as the dominant form of plant life?

Mr. wayne is scheduled to have a visual examination of the distal end of his descending colon that leads into the rectum. this procedure is called

The nurse is taking the health history of a client who has been admitted for repair of a cystocele and rectocele. which signs or symptoms would the nurse expect the client to report

In snapdragon plants, the gene for red petals (R) is incompletely dominant to the gene for white petals (r). Individuals that are heterozygous (Rr) have pink petals. A plant with pink petals is crossed with a plant with white petals.

Complete these questions to test your understanding of the structure and function of olfactory cells. 1. Structurally, olfactory neurons are unipolar neurons

During heart surgery, red blood cells are damaged. When the blood passes through the lymphatic system, these damaged red blood cells are trapped and broken down by macrophages.