Term
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Definition
True or false?
Conifer pollen grains contain male gametophytes |
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Term
| Sporophyte, pollen cone, microsporangia, pollen grain |
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Definition
Arrange the folowing structures, which can be found on male pine trees, from the largest structure to the smallest structure
Sporophyte, microsporangia, pollen cone, pollen grain |
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Term
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Definition
| Which structure is common to both gymniosperms an angiosperms? |
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Term
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Definition
| What is true of stamens, sepales, petals, carpels, and pinecone scales? |
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Term
| Two sperm nuclei and one tube cell nucleus |
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Definition
| In flowering plants, a mature male gametopyte contains |
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Term
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Definition
| Which type of cells are not a type of cell found in a female gametophyte of an angiosperm? |
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Term
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Definition
| One embryo involving one sperm cell and endosperm involving a second sperm cell |
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Term
| stigma, style, ovary, micropyle |
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Definition
In typical angiosperm, what is the sequence of structures encountered by the tip of a growing pollen tube on its way to the egg?
Micropyle, style, ovary, stigma |
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Term
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Definition
| what type of plant completes its lifecycle in two years and then dies? |
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Term
| Axillary buds start growing |
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Definition
| What happens when the apical meristem is damaged? |
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Term
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Definition
| which of the following would be an example of a modified leaf? |
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Term
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Definition
| are land plants composed of mesodermal tissue? |
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Term
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Definition
| What kind of modified roots are shown in the drawing to the right? |
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Term
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Definition
| Ground tissue in the stem of a plant that is outside of the vascular tissue |
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Term
| simple squamous epithelium |
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Definition
| type of epithelium with the flattest cells is |
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Term
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Definition
| What type of epithelium is composed of several layers of box-like cells |
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Term
| few, extracellular matrix |
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Definition
| All connective tissues have relatively ____ cells and a large amount of _____________ _____ |
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Term
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Definition
| The cavities taht contain chondrocytes are called |
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Term
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Definition
| Which type of muscles have intercalated disks? |
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Term
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Definition
| food moves alon the digestive tract as the result of contractions by what type of muscles? |
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Term
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Definition
| the region of a neuron that sends a stimulus on to the next neuron is the |
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Term
| colonial choanoflagellate |
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Definition
| the last common ancestor to all animals was most likely similar to a |
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Term
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Definition
| a concentration of sensory structures at the anterior end |
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Term
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Definition
| The inside cavity of a blastula is called the |
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Term
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Definition
| it has a coelom that forms between the endoderm and mesoderm |
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Term
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Definition
| at which developmental stage should one be able to first distinguish a protostome embryo froma deuterostome embryo |
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Term
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Definition
| spiral and determinate cleavage, blastopore becomes mouth |
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Term
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Definition
which of hte following organisms would have the highest surface-to-volume ratio
human, dog, mouse, elephant |
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Term
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Definition
| what body shape is seen in sharks penguins and aquatic mammals because it reduces drag for aquatic animals that swim fast |
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Term
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Definition
| our body maintains a constant internal environment, which is termed |
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Term
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Definition
| animal that does not have true tissues is probably a |
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Term
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Definition
| amoebocytes, spicules, spongin, and choanocytescan all be observed in the __________ of various undisturbed sponges at one time or another |
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Term
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Definition
which of the following is correctly associated with sponges?
osculum, gastrovascular cavity, spicules made of chitin, true tissues |
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Term
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Definition
| the members of which class of the phylum Cnidaria occur only as polyps |
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Term
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Definition
| You examine an onion root tip, the region of active cell division (via mitosis) is called the |
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Term
| nurture and support neurons |
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Definition
| the function of glial cells is to |
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