Compare and contrast the intercellular junctions that allow communication between plant and animal cells
What will be an ideal response?
Gap junctions in animal cells and plasmodesmata in plant cells are both involved in coordinating the actions of adjacent cells.
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The behavior of parental care exhibited by dinosaurs is thought to be __________ to this behavior in crocodiles and birds because phylogeny shows that these three groups share a common ancestor.
Fill in the blank(s) with the appropriate word(s).
Answer the following statements true (T) or false (F)
1. There are no parasitic crustaceans. 2. Each arm of the starfish differs internally, one being specialized for reproduction, another for respiration, a third for digestion, a fourth for the water vascular system, and the fifth for the nervous and circulatory systems. 3. Autotomy is the ability of an animal to lose a body part and subsequently regenerate it. 4. Echinoderms have an exoskeleton.
DNA is found in association with proteins within the cell. What is the term for this DNA-protein complex?
A. chromatids B. centromere C. karyotype D. chromatin E. nucleus
Assume that red plants crossed with white plants
give rise to pink plants. Explain how to eliminate red plants if you start with two pinks. What will be an ideal response?