A gymnosperm is <span>a plant that has seeds unprotected by an ovary or fruit. Gymnosperms include the conifers, cycads, and ginkgo.</span>
Answer:
Both fish and bird embryos exhibit gill slits and a tail.
Explanation:
According to embryology, all vertebrates exhibit similar traits and structures at their embryonic stage. It becomes very difficult to differentiate between the embryos of a fish, and that of a bird, or embryo of a fish, and a human. These traits, however, disappear, as the case may be, as the embryo develops into an adult. For example, in the case of the embryo of a fish, and a bird, both shows gills slits at their respective embryonic stage. However, the gill slits in fish develop into gills, whereas in the case of birds, it disappears as the embryo develops into an adult.
He or she is said to be in a positive
nitrogen balance state.
Nitrogen balance is the
traditional method of determining dietary protein requirements. Determining
dietary protein requirements using nitrogen balance requires that all nitrogen
inputs and losses are carefully collected, to ensure that all nitrogen exchange
is accounted for. Positive nitrogen balance is associated with periods of
growth, hypothyroidism, tissue repair, and pregnancy. This means that the
intake of nitrogen into the body is greater than the loss of nitrogen from the
body, so there is an increase in the total body pool of protein.
The spinal cord is made up of bundles of nerve fibers.
Answer:
The correct answer is option B. pulmonary stenosis.
Explanation:
Hypertrophy of the right ventricle is also called right ventricular hypertrophy is a condition in which the heart muscles of the right ventricles are enlarged or thickened.
The hypertrophy of the right ventricle is a response to pulmonary stenosis. Pulmonary stenosis is the condition in which blood flow from the right ventricle to the pulmonary artery is obstructed due to the stenosis or narrowing at one or several points.
Thus, the correct answer is option B. pulmonary stenosis.
