How does xylem differ from phloem?

A. Xylem has living cells.

B. Xylem is found in the roots.

C. Xylem contains chloroplasts.

D. Xylem has a two-way flow.

Some plants trap insects and use them for nutrients. This adaptation is a response to what aspect of their ecosystem? A. Limited rainfall B. Poor soil quality C. Abundance of sunlight D. Extreme temperatures

Since all living things on Earth share the same universal code in DNA and RNA molecules, which of the following is most likely true?

What feature of the ocean basin is actually part of the continental crust?

One of the main differences between natural selection and genetic drift is that A) genetic drift happens by chance B) genetic drift populations introduce new species C) genetic drift populations are selected by nature D) genetic drift populations

Nonvascular plants are not as common or as widespread as vascular plants because a. nonvascular plants are small. b. the life functions of nonvascular plants require a close association with water. c. nonvascular plants are limited to dry habitats.

What is the junction between a nerve cell and another cell called: axon, synapse, dendrite, none of the above

1. Synthesize Information How do you explain to the horse owner why this foal was born with OLWS while two previous foals were perfectly healthy? What would you tell the new parents of the baby girl about their prospects for having more children?

What organelle is the control center for the cell and holds the DNA

The primary structure of a protein refers to the sequence of amino acids that are linked together in a long chain. Which of the following common items would best represent the primary structure of a protein? O A.

How many chromosomes do humans have? how many copies in normal cells? How many pairs? How many copies in sex cells?