The answers are:
Sense Organs
internal organs
muscles
glands
and blood vessels
Can i please have a brainliest?
Answer
Muscle Fiber
Explanation:
Skeletal muscle is one of three major muscle types, the others being cardiac muscle and smooth muscle. It is a form of striated muscle tissue, which is under the voluntary control of the somatic nervous system.[1] Most skeletal muscles are attached to bones by bundles of collagen fibers known as tendons.
A skeletal muscle refers to multiple bundles (fascicles) of cells joined together called muscle fibers. The fibers and muscles are surrounded by connective tissue layers called fasciae. Muscle fibers, or muscle cells, are formed from the fusion of developmental myoblasts in a process known as myogenesis. Muscle fibers are cylindrical and have more than one nucleus. They also have multiple mitochondria to meet energy needs.
Muscle fibers are in turn composed of myofibrils. The myofibrils are composed of actin and myosin filaments, repeated in units called sarcomeres, which are the basic functional units of the muscle fiber. The sarcomere is responsible for the striated appearance of skeletal muscle and forms the basic machinery necessary for muscle contraction.
Amino acids are the structural units (monomers) that make up proteins. They join together to form short polymer chains called peptides or longer chains called either polypeptides or proteins.
Hair Matrix
The hair matrix is wrapped almost totally around the papilla. It is a collection of cells, primarily comprising of epithelial cells and some pigment-producing cells called melanocytes. The continuous division of cells in the hair matrix forms the hair shaft (the strands of hair that we actually see) and the inner and outer root sheaths of the hair.
Answer:
The best answer to your question would be as follows: The most likely result will be 1. That the rabbits from 1955 injected with the 1955 virus will have a lower survival rate than those same rabbits injected with the 1980 virus; and 2. that the rabbits from 1955 injected with the 1980 virus will have a lower rate than rabbits from 1980 injected with the 1980 virus.
Explanation:
The explanation as to why comes from the knowledge of evolution and especially with knowing that the Myxoma virus in European rabbits is the perfect example of virus-host co-evolution. Although according to the research published on this matter in 1998, Myxoma was not lethal to its natural rabbit hosts, it became so for the European groups that were in Australia. In the case of this hypothetical situation, evolution, and immune preparation to respond to a virus, to keep it in check, and for it not to be lethal is the key. In the 1955 rabbits, the exposure was just recent, therefore they had not had the time to develop defensive mechanisms, and much less evolutionary responses that would prevent the virus from being lethal. And in the second case, the virus from 1980 will have evolved much more than the 1955 rabbits to which it was injected, and therefore, again, a lethal situation will ensue.