In Pteridophytes (such as ferns and horsetails), the main plant body is the dominant, diploid stage of the life cycle. What is this stage called?
Sporophyte
Pteridophytes, such as ferns and horsetails, show a life cycle with two distinct generations that alternate with each other.
The gametophyte is the smaller, haploid stage, while the main, visible plant body represents the dominant, diploid stage of the life cycle.
This dominant diploid stage, which bears the sporangia producing spores, is called the sporophyte.
Archaea are classified into a separate domain from Eubacteria primarily based on differences in:
The Hardy-Weinberg principle states that allele frequencies in a population remain constant only when which of the following conditions are simultaneously satisfied ?
Lamarck's theory of evolution (Lamarckism) proposed that new species arise primarily through :
The term Gymnosperm is derived from Greek words meaning "naked seed". What characteristic of their seeds justifies this name ?
Which group of plants is characterized by flowering blossoms and produces seeds that are enclosed inside an ovary?
In the taxonomic hierarchy, the broadest and highest category among the following is:
Which of the following is a warm blooded animal?
In which group the unicellular, Eukaryotic organisms are included?
Phenetic classification is based on:
Choose the correct descending sequence of the following taxonomic categories using the codes given below:
A) Genus
B) Order
C) Class
D) Species
E) Family
All fungi are: