B. Homeostasis . homeostasis is the process via which organisms maintain their internal milleu.
The answer to the question is 7.4%.
<h3>How to calculate production efficiency?</h3>
Energy from food is 5000 J
Energy lost in feces is 2300 J
Energy used in cellular respiration (metabolism) is 2500 J
The production efficiency of consumer in an ecosystem is given by
(Energy from food- Energy lost in feces-Energy used in cellular respiration (metabolism)) divided by (Energy from food- Energy lost in feces)
= (5000 - 2300 - 2500)/ (5000 - 2300)
= 7.4
<h3>What is
production efficiency?</h3>
Energy transfer efficiency from one trophic level to the next is referred to as ecological or production efficiency. It is determined by a variety of assimilation and resource acquisition efficiency for organisms within an ecosystem.
The average efficiency of energy transfer between trophic levels is such that net production at one trophic level is often only 10% of net production at the trophic level before it (the Ten percent law). In contrast to being absorbed for production by consumers, a sizeable quantity of energy is lost to the environment as a result of non-predatory mortality, egestion, and cellular respiration. Although these fractions differ significantly from ecosystem to ecosystem and from trophic level to trophic level, the picture roughly represents the fraction of energy available after each stage of energy loss in a typical ecosystem.
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My best guess is that when an ecologist studies a living thing/organism they must consider the numbers that are left of the specific creature they are studying. This means that when an animal goes extinct, the diversity of life on Earth shortens! Now I may not be right because there are no answer choices so do forgive me!
Answer:
The correct answer will be option A.
Explanation:
The electrical impulses are generated in the sino-atrial node or SA node, a mass of cells which generates impulse in the upper atrium.
This electrical impulse transmits from the sino-atrial node to the atrio-ventricular node in the lower portion of the upper atrium through the internodal pathway- the pathway composed of atrial cells.
Once the impulse reaches the AV node, it is transferred to the ventricular portion of the heart through Bundle of His presence in the ventricular septum. This bundle of his divides into left and right ventricles through bundle branches and stimulates both the ventricles.
Thus, option-A is the correct answer.
One primary factor in shaping the polarity of the body axes in chick embryos is C. gravity.
The early developmental stages for organisms are a complex procedure and each kind of organism has its own kind of developmental phase. In mammals, the size of an egg is particularly small, hence the study becomes more difficult.
Gravity acts as a critical factor for determining the body axis at the time of embryogenesis. The dorsal-ventral axis for chick embryos is fixated due to gravity.
The bilateral symmetry of a chick depends on gravity. Research has shown that intrauterine rotation is only a tiny factor in shaping the bilateral symmetry of a chick embryo. It is the gravity that mostly affects the bilateral symmetry.
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