Answer:
B
Explanation:
the constant in biology does not change during an experiment. it is also called the controlled. think of it the same as algebra.
The study of living things or the study of life. "Bio" meaning life. "-ology" meaning the study of.
The karyotype of a child born with Down syndrome includes a trisomy in chromosome number 21. The rest of the karyotype remains normal.
<h3>What is a karyotype?</h3>
A karyotype is a representation to indicate the chromosomes of a somatic cell in an individual.
In humans, somatic cells are diploids, thereby karyotypes will be formed by two sets of homo-logous chromosomes.
Down syndrome is caused by the presence of an additional chromosome number 21, and therefore the karyotype will exhibit three (trisomy) 21 chromosomes.
Learn more about karyotypes here:
brainly.com/question/1327739
Answer:
lichen
Explanation:
Lichens are symbiotic associations of mutualism between fungi and algae. Most lichen-forming fungi are ascomycetes (98%), the remainder being basidiomycetes. The algae involved in this association are chlorophytes and cyanobacteria. The fungi of this association are called mycobionte and the algae, photobionte, since it is the photosynthetic organism of the association.
The dual nature of lichen is easily demonstrated by the separate cultivation of its components. In the association, the fungi take different forms from those they had when isolated, most of the body of the lichen is formed by the fungus.
The answer is c. echinodermata
