Insects that go through three stages of change in their life cycle have an incomplete metamorphosis while complete metamorphosis has four stages. The first stage of incomplete metamorphosis is the egg. During this time, the insect will hatch into a form called a nymph.
Answer:
This study examines genetic diversity among 102 registered English Bulldogs used for breeding based on maternal and paternal haplotypes, allele frequencies in 33 highly polymorphic short tandem repeat (STR) loci on 25 chromosomes, STR-linked dog leukocyte antigen (DLA) class
Explanation:
Answer:
The answer is A, to serve as an outgroup.
Explanation:
The study of any phylogenetic group requires that there must be an outgroup that can serve to understand which characters are plesiomorphic (or ancestral) and how they changed over the years to a new evolved character. In this case, Lily, since it is not a member of the group which is under study (orchid), serves as an outgroup.
The answer is: B - archaea
Explanation:
The organisms found in the subtropical forests of southern China which were acid tolerant and lacked internal organelles are the Archaea. Archaea refers to the domain of life with organisms living in extreme conditions. Because of this, the Archaea are referred to as the extremophiles.
The cells are very small, prokaryotic and are similar to bacteria in lacking a nucleus and membrane bound organelles. The cell membrane is bounded by a cell wall. They reproduce by binary fission, fragmentation or budding.
They can tolerate high temperatures and survive in hot springs, anaerobic conditions and are acid-tolerant. These acid tolearting Archaea are called the acidophiles surviving in a pH of 2 or less than 2.
They pump out protons out of the intracellular space and thus keep their cytoplasm in a neutral pH or have an acidified cytoplasm. The example are Thiobacillus acidophilus, Crenarchaeota and others.
