Answer:
Synovial membrane
Explanation:
The joint cavity is filled with synovial fluid, secreted by the synovial membrane (synovium) which lines the inside of the articular capsule. The synovial fluid is the fluid that lubricate the lining of joints and the sheaths of the tendons.
Answer:
Catabolite repression
Explanation:
Catabolite repression is characteristic for prokaryotic organisms such as bacteria and this is the way to control metabolism.
It is called repression, because enzymes that are involved in other sugar's metabolism are inhibited (repressed). The system of catabolite repression have components such as:
- sensory systems-detects ratios of glycolytic intermediates,
- global regulators-control the expression of genes that encode for enzymes.
The fraction is generated by the reactions of the citric acid cycle
The correct options are as follows:
2. THE VEGETATION IT EATS INCREASES AND THEN DECREASES REPEATEDLY WITH CHANGING SEASONS.
Some population of living organism usually undergo cyclic population changes in size. Cyclic oscillation results in repeated rise and fall in the population size of the concerned living organism over time. cyclic population changes are often brought about by interactions between populations of different species. For example, fluctuations in food availability can bring about cyclic population changes.
3. THE DEER POPULATION WILL INCREASE AND STRIP THE REGION OF VEGETATION.
The pumas and the panthers are the predators that feed on the deer. If these predators are eliminated, the number of deer in the region will increase drastically and this will be very detrimental to the health of the vegetation in the region. This is because, the deer, in their large number will feed unrestrainly on the vegetation until there is nothing left and this will affect the concerned ecosystem negatively.
4. THE ECOSYSTEM COLLAPSES.
A keystone specie refers to a specie of organism, which has a disproportionately large effects on its environment compare to its abundance or population. Such specie play crucial roles in the maintenance of the structure of the ecological community, that is, they largely determine the type and number of other specie in the community. Elimination of keystone species will leads to the collapse of the concerned ecosystem.
Answer:
heart muscle
, skeletal muscle
, glandula and smooth muscle
Explanation:
The peripheral system distinguishes two major divisions: the afferent and the efferent. Afferent division is formed by the nerves that carry information to the central nervous system. In the efferent division the information travels from the central system to the effector organs, both muscular and other (including skeletal muscle, heart, glands, smooth muscle). Within the efferent division, in turn, two systems are distinguished, the somatic and the visceral or autonomous.
The somatic system conducts the signals that give rise to body movements and actions outside the body. It is formed by the fibers of the motor neurons that innervate the skeletal muscles; Their cell bodies are found in the spinal cord and a single axon reaches the muscle fibers it innervates. The action of these motor neurons always consists in the excitation and contraction of the muscles, although muscular activity can be inhibited by inhibitory synapses in charge of central system neurons.
The visceral system is formed by the fibers that innervate the smooth muscles, the heart, the glands and other non-motor organs or tissues, such as brown fat. It controls functions that are mainly related to the maintenance of internal environment conditions and also certain automatic responses to external stimuli. Regulates visceral activities such as circulation, digestion, thermoregulation.
