Answer:
Most protists are unicellular. You may be wondering why those protists are not classified in the Archaebacteria or Eubacteria kingdoms. It is because, unlike bacteria, protists are complex cells.
Also:
Among these three main types of archaea are some subtypes, which include: Methanogens — archaeans that produce methane gas as a waste product of their "digestion," or process of making energy. Halophiles — those archaeans that live in salty environments.
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Answer:
The correct answer is: assembles ribosomes.
Explanation:
The nucleolus is the largest structure in the nucleus of a cell body, granular, and round structure. The nucleolus is made up of components like RNA and proteins In the center of the nucleus of a cell.
This is associated with the synthesis of ribosomes and the formation of the rRNA or ribosomal RNA. The ribosomal RNA and proteins combine together to form subunits of the ribosomes that are move out of the nucleus to the cytoplasm in order to perform their function.
Thus, the correct answer is: assembles ribosomes.
The deuterostome group's gene arrangement in the mitochondrial genome of <em>Xenoturbella bocki </em>is remarkably close to that of the chordates and hemichordates and hence to the ancestor deuterostome gene order. Inversion and breakpoint studies particularly point to a similarity to the hemichordates.
Previous morphological investigations imply that Xenoturbella could be classified as a bivalve mollusc, a basal bilaterian, a turbellarian flatworm, a sister group to the echinoderms(nonvertebrate), or a hemichordate. Recent genetic analyses that focus mostly on nuclear genes appear to favour the Ambulacraria (echinoderms + hemichordates). In contrast, a basal deuterostome location is supported by mitochondrial sequences.
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Recessive means a weaker trait in genetics. Genes that mask other genes are called dominant and genes that can be masked are the weaker or recessive genes. Cystic fibrosis is a hereditary disease that mainly affects Caucasian children of European decent. The disease is caused by a defect in which cells make chloride pumps but fail to install them in the plasma membrane. Both parents must carry the recessive gene for a child to inherit the condition.