Answer:
Animals capable of feeding at many trophic levels will be able to survive if portions of their food supply are decreased or eliminate is not true of about trophic levels
Explanation:
This is because each trophic levels represent energy flow and supply of food to the organisms in the trophic levels. Energy are pass from one tropic levels to another as a result of source of food there. Plants majorly are the primary producers and the primary consumers depend on it. Therefore, if the source of food supply is eliminated in a trophic level, the organisms I'm the trophic level will not be able to survive.
Answer:
Simple cell
Explanation:
Simple cells are found in primary visual cortex and are made up of large number of receptive fields from neurons and the respond to light at specific Orientation and oriented edges. The cells were discovered by Torsten Wiesel and David Hubel in the late 1950s. The simple cells respond to stimuli with some particular orientations to objects within their receptive fields. Receptive fields comprises of sensory receptors in the sensory neurons that draw out neurosonal responses when there are stimulated
Answer:
Correct answer is (a). Local extinction
Explanation:
Local extinction is a type of relationship which result to competition between organism. A condition that makes organisms to battles for survival which may results to termination of kind of organism or group of kind of organism.
In an ecological niche, some organisms takes advantage of others, they tend to thrive and exploit others to survive while the one that can not compete go into extinction when the environment is no longer conducive due climatical change or pressure from the other organisms.
Answer:
Medulla oblongata. (Ans. A)
Explanation:
Medulla oblongata is present in the brain, in front of the cerebellum. It controls the number of functions in the body. It helps to transfer messages to the thalamus & spinal cord, from the body.
Medulla oblongata helps to regulate breathing, blood pressure, heart rate, sneezing, and digestive activities. Medulla oblongata part of the brain is a center for respiration & circulation. Sensory & nerve cells from the midbrain & forebrain travel through the medulla. It receives its blood supply from many arteries (including anterior spinal, posterior inferior cerebellar and the vertebral artery's)
Answer:
A. Antibodies to A and B are present in the red cells.
Explanation:
AB positive is a blood type with the presence of A and B antibodies in the red blood cells, with the absence of A and B antigens. This blood type is referred to as the “universal recipient” because individuals who are AB positive can receive from all blood types including O, A and B. AB positive is only able to donate blood to patients who are AB positive AB is referred to the rarest blood type.
Therefore Fred's red blood cells have A and B antibodies.
