Emphysema is a condition that involves damage to the walls of the air sacs (alveoli) of the lung i.e, primarily causes shortness of breath due to over-inflation of the alveoli.
First, emphysema causes holes to gradually form inside the lungs' air sacs, thereby weakening their internal structure and inhibiting the exchange of oxygen and carbon dioxide.
Spongy, porous bone tissue is also called cancellous bone.
Cancellous bone is found in bones that aren't generally under significant stress like in the shoulder blades, ribs, parts of the skull, and at the ends of long bones.
A tertiary consumer is an animal that obtains its nutrition by eating primary consumers and secondary consumers.
Usually tertiary consumers are carnivorous predators, although they may also be omnivores, which are animals that feed on both meat and plant material.
Tertiary consumers often occupy the top trophic level, and so are predated by no other animals; in this case they are called "apex predators". However, when they die their bodies will be consumed by scavengers and decomposers.
Translation is the process by which a protein is synthesized from the information contained in a molecule of messenger RNA (mRNA). During translation, an mRNA sequence is read using the genetic code, which is a set of rules that defines how an mRNA sequence is to be translated into the 20-letter code of amino acids, which are the building blocks of proteins.
In short, during the process of translation source language text is conveyed to destination language.
The correct order of events during meiosis is:
prophase I,
metaphase I,
anaphase I,
telophase I,
cytokinesis, and
meiosis II.
The given statement that all cells divide at the same rate is FALSE.
No, all cells do not divide at the same rate. Cells that require frequent replenishing, such as skin or intestinal cells, may only take roughly twelve hours to complete a cell cycle. Other cells, such as liver cells, remain in a resting state (interphase) for up to a year before undergoing division.
A chromatid is one copy of a newly copied chromosome which is still joined to the original chromosome by a single centromere.
The two identical copies?each forming one half of the replicated chromosome are called chromatids.
Chromonema is the fibre-like structure in prophase in the primary stage of DNA condensation. In metaphase, they are called chromatids.
The three statements make up the cell theory are::
1. All living things are made up of cells.
2. Cells are the basic unit of structure/function in living things.
3. New cells come frome exisiting cells.
These cells can vary widely, but all living things are composed of cells.
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