The answer is B
A worker bee defends the hive while the queen be lay eggs like a good soldier would do
Answer:
Cone cells, or cones, are photoreceptor cells in the retinas of vertebrate eyes (e.g. the human eye). They respond differently to light of different or color vision and function best in relatively bright light, as opposed to rod cells, which work better in dim light. Cones are mostly in the center of your retina. They help you see color and fine detail.
Explanation:
Enzymes in your gastrointestinal tract digest your lunch. these chemical reactions are categorized as catabolism.
<h3>What is
catabolism?</h3>
The series of metabolic processes known as catabolism reduces molecules into smaller pieces that are then either oxidized to produce energy or utilised in other anabolic processes. Large compounds are divided into smaller components through catabolism.
<h3>What is a prime illustration of catabolism?</h3>
Catabolism happens as you are breaking down food. For instance, a piece of bread is broken down into simple components your body may absorb, such glucose, through this process (blood sugar).
<h3>What is difference between catabolism and anabolism?</h3>
The series of metabolic processes known as catabolism reduces molecules into smaller pieces that are then either oxidized to produce energy or utilised in other anabolic processes. The process of anabolism produces the molecules the body needs to function. Energy is released during the catabolism process. Energy is needed for anabolic processes.
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The<u> repressor </u>is a type of regulator protein that binds to a region of DNA in the promoter of a gene called the operator and prevents transcription from taking place.
In the field of science, a regulator protein can be described as a kind of protein that affects the transcription of a gene by having an influence on particular DNA sites. The rate of synthesis of various proteins is controlled by the regulator proteins.
A repressor is a kind of regulator protein that prevents the transcription of a particular gene. When the rate of a protein in the body has reached normal, the transcription of the protein needs to be stopped in order for more protein of that kind to be formed. The repressor binds itself to the operator region for the gene, hence stopping the transcription process until the protein is required again.
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Answer: The graph shows that chlorophyll a absorbs light principally around 420-450 nm and 650-680nm wavelengths
Explanation: Chlorophyll a is a pigment found in plants that traps light energy for use in photosynthesis. Chlorophyll a absorbs light mostly in the blue and orange-red wavelengths. This is shown in the graph, where the peaks are around the 400nm and 600nm wavelengths, corresponding to blue and red in visible light.
This absorption means the pigment is 'excited' by this light, sending into a higher state if energy which provides energy for the reactions of photosynthesis.
