Which of these statements best describes the role of oxytocin in the body? Oxytocin is an anterior pituitary secretion Oxytocin release is an example of a positive feedback control mechanism Oxytocin exerts its most important effects during menstruation Oxytocin controls milk production
Fill in the Blank 2 points The square v of bone tissue consists of calcium hydroxyapatite crystals and collagen fibers.
If one parent has MH, what is the probability that his or her child will inherit the parent's mutant gene and MH susceptibility? A. 10% B. 25% C. 50% D. 100%
The labrum provides stability to which of the following? the name of a dog knee stability two of the above none of the above
What is the job of a blast? to form collagen to remove collagen to connect the bones none of these answers
The dermis, also known as the corium, is the thick layer of living tissue directly below the epidermis and contains connective tissue, blood and lymph vessels, and nerve fibers. True False
The epidermis is the outermost layer of the skin and contains blood vessels and connective tissue. True False
Match the animal with its correct taxon Answers may be used more than once. square coral square fluke square tapeworm square comb jelly square spiny-headed worm square clam square Planaria square oyster 1. Cnidaria 2. Porifera 3. Mollusca 4. Platyhelminthes 5. Ctenophora 6. none of the taxa listed
Correctly match the animal with is appropriate characteristic. Answers may be used more than once. square octopus square sponge square flatworm square oyster 1. not applicable 2. acoelomate 3. pseudocoelomate 4. coelomate
The carapace of crustaceans is derived from: Fusion of head and thorax Abdominal segments Thoracic segments Dorsal folds of the head
Different forms of a gene controlling a particular trait are called - alleles hybrids punnetts zygotes
How can scientists use comparative anatomy? A. to understand the size between organisms B. to understand the climate in which organisms live C. to understand evolutionary relationships between organisms D. to understand the food chain order of organisms
7. Explain what the results show about the flow of energy in an ecosystem.
Where do you put the parents' genotypes when you're doing a Punnett Square? Inside the box Outside the box on the top and left
Which of the following structures detects changes in the environment and sends this information to the brain? Neurons Glial cells Hormones Sensory receptors
What is the primary role of the spinal cord in the nervous system? Storing sensory information Carrying messages between the brain and the body Producing hormones None of these
What is the primary purpose of packaging DNA into chromosomes during mitosis? A To prevent genetic mutations B To make DNA more compact C To allow DNA to move to opposite ends of the cell D To increase genetic complexity
In a species with a body cell having 6 chromosomes, how many chromosomes would be in the gametes after meiosis? A 3 chromosomes B 2 chromosomes C 6 chromosomes D 12 chromosomes
Which of the following best describes the process of transpiration? Water transforms from a liquid to a gas Plants release water vapor during photosynthesis and respiration Energy flow from one organism to another Bacteria perform nitrogen fixation
In the genetic code a sequence of three mRNA nucleotide bases that specifies a particular amino acid (or a stop signal)is known as a: Codon. Anticodon Gene.
