Answer:
C. an allergic reaction
Explanation:
Pollen can generate an immune response which is known as hypersensitivity. Hypersensitivity is an uncontrolled and unregulated immune response. Pollen generates IgE mediated type I hypersensitivity which causes acute inflammation in the body which ultimately result in wheals and flares on the skin. It causes hyper activation of mast cells and basophils which cause vasodilation by releasing molecules like leukotrienes, serotonin and prostaglandins. Asthama and atropic dermatitis are the two diseases which occur due to pollen allergies.
B. carry water and nutrients between roots and leaves.
C. store carbohydrates.
D. store water.
One of the three main functions of stems is to carry water and nutrients between roots and leaves. So, the correct option is B.
The stem is defined as the axis of the plant that bears buds and shoots with leaves and, at its basal end, roots that conduct water, minerals, and food to other parts of the plant, which store food and the green stem itself produces food.
Stem is explained as the aerial part of the plant which contains leaves, fruits, branches and flowers. The stem is positively phototropic and negatively geotropic where as the leaves contain chlorophyll so that the plant can make food. The main functions of stems is to carry water and nutrients between roots and leaves.
Therefore, the correct option is B.
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one of the three main functions of stems is to carry water and nutrients between roots and leaves
O B. The polar jet stream moves north.
O C. The horse latitudes moves north.
O D. The doldrums moves south.
The polar jet stream moves south is accompanies a cold spell in Minnesota. Therefore, option (A) is correct.
Polar jet stream is a belt of strong upper-level breezes that sits on the polar front. The winds generally move in a westerly direction in midlatitudes and are strongest at the tropopause, the upper boundary of the troposphere.
The convergence of cold air masses coming down from the Arctic and warm air coming up from the tropics creates the jet. Profound box and soak edges arise as the denser virus air sinks and redirects warm air locales north, giving the fly stream its wavy appearance.
The northern polar jet stream is the most important jet stream for aviation and weather forecasting on Earth because it is much stronger and lower in altitude than the subtropical jet streams.
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Answer: The correct answer is -
interphase and M phase.
Explanation:
Cell cycle can be described as a series of events that take place for the division of cell into two daughter cells.
It is primarily divided into two stages, which are-
1) Interphase (that is further divided into G1, S, and G2 phase) that involves the duplication of DNA and other proteins required in cell division.
2) M (mitotic phase) phase during which the nuclear division takes place through four successive stages that are prophase, followed by metaphase, anaphase and telophase.
After this cytokinesis (cytoplasmic division) occurs resulting in formation of two daughter cells.
Thus, first option is the right answer.
I need a short answer
Answer:
Changes to Earth's radiative equilibrium that cause temperatures to rise or fall over decadal periods are called climate forcings.
Explanation:
Is this short enough?
Climate forcing is the process of affecting/changing the climate on the Earth through forcing factors.
These forcing factors are out of the climate system, and include things like volcanic eruptions, changing solar radiation levels, and changing levels of greenhouse gases in the atmosphere.