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Which of the following distinguishes angiosperms from gymnosperms? A) the presence of flowers B) the presence of seeds C) the ability to survive on land D) the ability to produce spores. Pollen is most similar to which human cell? A) fetus C) zygote B) sperm D) egg.
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Which of the following distinguishes angiosperms from gymnosperms?A) the presence of flowersB) the presence of seedsC) the ability to survive on landD) the ability to produce spores
Which components of a geranium plant have functions similar to those of the arteries and veins of humans?A) chloroplasts and guard cellsB) palisade and spongy layersC) xylem and phloemD) cambium and epidermis
Flowers whose reproductive structures consist only of stamens would be able to produceA) ovules C) fruits with seedsB) pollen D) fruits without seeds
Plant growth and development is regulated by hormones. Due to the actions of these hormones, the roots of plants almost always grow down into the soil. By doing so, they exhibitA) gravitropism C) hydrotropismB) thigmotropism D) phototropism
A splinter flew toward the eye of a man chopping wood. The man immediately blinked, which prevented the splinter from damaging his eye. This response is an example of which type of behavior?A) learned C) instinctB) imprint D) reflex
Which of the following organisms have feathers, internal fertilization of eggs, lay their eggs and have a 4-chambered heart?A) bird C) mammalB) reptile D) amphibian
While swimming in the ocean, you accidently step on an organism with spines, an endoskeleton and radial symmetry. This organism would most likely be classified asA) Arthropoda C) MolluscaB) Echinodermata D) Cnidaria
Which group of vertebrates have mostly external fertilization, gills in larvae form, lungs in adult form and require water for reproduction?A) Amphibians C) ReptilesC) Fish D) Mammals
The jellyfish is classified as a Cnidarian because it hasA) bilateral symmetryB) stinging tentaclesC) an exoskeletonD) a dorsal nerve cord
Which of the following organisms have hair, mammary glands, internal fertilization of eggs, birth live young, and a 4-chambered heart?A) reptile C) amphibianB) bird D) mammal
Clams, squids, and snails, which are soft-bodied and have an internal or external shell, are classified asA) annelida C) molluscaB) chordata D) porifera
Which phylum below includes organisms which have a hard exoskeleton, jointed appendages, bilateral symmetry and a coelom?A) mollusca C) arthropodaB) nematoda D) annelida
Most chordates are vertebrates, meaning they have a strong supporting structure known as theA) scapula C) exoskeletonB) backbone D) visceral mass
Which of the following adaptations allowed for the transition of animals from water to land?A) development of lungsB) body covering of fur or hairC) live birth of youngD) production of an amniotic egg
Which type of fertilization and development occur in the life cycle of fishes?A) external fertilization and external developmentB) external fertilization and internal developmentC) internal fertilization and external developmentD) internal fertilization and internal development
The process by which excess water leaves a plant through the stomates is known asA) transpiration C) hydrolysisB) photosynthesis D) locomotion
What behavior most distinguishes mammals and birds from other vertebrates?A) construction of sheltersB) aggressive defensive behaviorC) care of young after birthD) methods of obtaining food
Under certain conditions, the openings of stomata in leaves become smaller. This process enables the plant to avoid excessive loss ofA) water C) saltB) methane D) nitrates
In flowers, pollination will most likely occur whenA) many specialized cells are released from the ovaryB) the wind transfers pollen from the pistil to the stamenC) insects transfer pollen from an anther to a stigmaD) gravity causes pollen to fall from the stigma to the anthers
Segmented worms, like the earthworms one would use as fishing bait, are considered part of the phylumA) mollusca C) platyhelminthesB) annelida D) cnidaria
Water is an essential requirement for plants. However, certain plants lack the vascular system required for the internal transport of water. Which of the following is an example of a non-vascular plant?A) ferns C) angiospermsB) mosses D) gymnosperms
When a plant growth response is toward a source of light, this response results from theA) action of contractile fibersB) action of plant hormones called auxinsC) conversion of light energy into heatD) conversion of mechanical energy into radiant energy
The leaf of a plant conducts gas exchange with the outside air using an opening called the A) cuticle C) vascular tissueB) epidermis D) stoma