Anaphylaxis, also called allergic or anaphylactic shock, is a sudden, severe and life-threatening allergic reaction that involves the whole body. The reaction is marked by constriction of the airways, leading to difficulty breathing.
Anaphylaxis is a severe, whole-body allergic reaction to a chemical that has become an allergen. An allergen is a substance that can cause an allergic reaction.
Anaphylactic shock is a rare but severe allergic reaction that can be deadly if you don't treat it right away. It's most often caused by an allergy to food, insect bites, or certain medications. A shot of a drug called epinephrine is needed immediately.
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Answer:
22:- in mitosis stem cells and somatic cells cell division occurs and in meoisis germ cells cell division occurs
23:- at end of mitosis 2 daughter cells formed and meiosis 4 daughter cells formed
24:- in mitosis cells are same and in meiosis cells are different
l know only those questions answers
The fossil record
This supports Darwin's theory of evolution, which states that simple life forms gradually evolved into more complex ones. Evidence for early forms of life comes from fossils. By studying fossils, scientists can learn how much (or how little) organisms have changed as life developed on Earth.There are gaps in the fossil record because many early forms of life were soft-bodied, which means that they have left few traces behind. What traces there were may have been destroyed by geological activity. This is why scientists cannot be certain about how life began.
Fossils provide a snap shot of the past and allow us to study how much or how little organisms have changed as life developed on Earth.
Answer:
C.The percentage of essential body fat is the same for both males and females.
Explanation:
Among the given statements, only C is incorrect. Typically, on average, women have 5-12% more body fat than men. This has been mainly linked with the female hormones (e.g. oestrogen). Firstly, women can store more fat in their bodies due to the presence of excessive adipose tissues. Secondly, they are suppose to carry a child at some stage of their life, so a better food supply and protection is necessary.
On the other hand, rest of the options are true. Essential body fat is always required by body. It accounts for 3% of total body wight. And, it can be found in organs, bones and muscles at different percentages.
