In this group of plants microspores develop into _________ which contain the male gametophyte.
What are "pollen grains?"
Ovary contains...
What is "ovules?"
The lophophore is used for..
What is "feeding?"
Feeding mode
What is "suspension/filter feeding?"
Not ecysozoans but I had to ask the question, leeches belong to this animal phylum.
What is "Annelida?"
A plant seed contains ______________ and _____________.
What are embryo and food supply?
_________ ____________ occurs when the pollen tube discharges two sperm into the female gametophyte within an ovule
What is "double fertilization?"
The parasitic flatworm that has a "scolex" used for attachment is called..
What is a "tapeworm?"
Fresh or marine waters?
What is "both?"
This main group of ecdysozoans make up over 2/3 of all know animals species.
What are "arthropods?"
The phylum of gymnosperms that contains the most representatives.
What is "Coniferophyta?"
Embryonic leaves
What are "cotyledons?"
Virgin birth
What is "parthenogenesis?"
Phylum of glass sponge
What is "Silicea?"
Claw-like feeding appendages
What are "chelicerae?"
An increase of this process (_______________) during the Carboniferous period contributed to global cooling because of the reduction of ____________ in the atmosphere.
What is "photosynthesis and CO2"
one embryonic leaf, no taproot, parallel veins, and scattered vascular tissue
What is a "monocot?"
Flatworm phylum
What is "Platyhelminthes?"
Sponges are not Eumetazoans because they lack...
What is "true tissues?"
Millipede and centipede subphylum
What is "Myriapoda?"
Producing two different types of spores.
What is "heterosporous?"
Phylum of angiosperms
What is "Anthophyta?"
In flatworms, regulation of osmotic balance occurs in these organs.
What is "protonephridia?"
Structures that give sponges body support and continue to exist even after they die.
What are "spicules?"
Phylum of horseshoe crab, spiders, insects, centipedes, lobsters, and barnacles.
What is "Arthropoda?"