Answer:
They are classified into three orders: frogs and toads, salamanders and newts, and caecilians.
The answer would be the second option. The best reason for doing more background research after making an observation and before forming a hypothesis is to prevent making the same mistakes made in a prior experiment. It is to make sure that you are able to see the problems of a research and make an experimental design that will minimize the errors.
Answer:
Explanation:
(A) Heterotrimeric G-proteins are composed of three distinct subunits (α, β, and γ). Receptor activation causes the binding of the G-protein and the α subunit to exchange GDP for GTP, leading (more...) The second class of GTP-binding proteins are monomeric G-proteins (also called small G-proteins).
<span>The ways for lessening the effect of increased carbon include reducing the components of the carbon footprint (the amount of carbon dioxide and other carbon compounds emitted due to the consumption of fossil fuels).</span> Air travel is one of the main components of the carbon footprint. <span>The solution for reducing the amount of carbon dioxide in the air is to burn fewer fossil fuels, but it is very difficult because the burning of fossil fuels is necessary for heating, electricity generation and transport.</span>
Power stations that burn fossil fuels to produce electricity are one of the main contributors of carbon dioxide in the atmosphere and the way to reduce it is to use less electricity which can be done by turning down the heating at home, insulating home, <span>using low-energy lamps etc.</span>
Answer:
Option-B
Explanation:
Phototropism refers to the movement of plants in response to light. The mechanism of phototropism involves the photoreceptors which respond to a different wavelength of light: the phytochromes to red light, cryptochromes to blue light and the phototropin to the UV light.
Plants integrate the signals obtained from these receptors and then activates the gene which will be involved in the phototropism.
The gene could be the production of the auxin hormone and the PIN proteins which helps in the distribution of the auxin in the plants. Due to the production of this hormone and its distribution in the shoot, the grass tips bend towards the light.
Thus, Option-A is correct.
