Answer the following statements true (T) or false (F)
1.Mollusks that have two-part hinged shells are called bivalves.
2.Arthropods have jointed legs.
3.Presence of vertebrae is a shared characteristic among all chordates.
4.An internal membrane in chordates that protects the developing fetus is the notochord.
5.Birds are endothermic, feathered reptiles.
1.TRUE
2.TRUE
3.FALSE
4.FALSE
5.TRUE
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Answer the following statements true (T) or false (F)
1. Researchers can readily extract DNA from one organism and merge that DNA into another organism, applying genetic engineering as a possible cure to cancer or muscular dystrophy and other diseases. The scientific method can test a hypothesis to determine if this approach is morally right or wrong.
2. In this experiment, if the scientists giving the placebo (low, medium, or high vaccine doses) did not know which dose they were administering, then this would be an example of a double-blind experiment.
3. A theory is an advanced hypothesis that has been proven to be true.
4.
These glucose and fructose molecules will bond to form a monosaccharide with the removal of water.
5. The property of water demonstrated by a water strider, as it remains on top of the water, is that water molecules are held together by ionic bonds.
Acts to protect Canadian geese were put into effect in the ____
a. 1700s b. 1800s c. early 1900s d. late 1900s e. 2000s
A growth ring is composed of xylem. Indicate whether the statement is true or false
________ phenotypes are passed equally to offspring by both males and females
A) X-linked dominant B) Mitochondrial C) Autosomal dominant D) Autosomal recessive E) X-linked recessive