Answer:
Pigments absorb the light (capture as much light energy as possible) used in the process of photosynthesis.
Explanation:
Photosynthetic pigments are chemical compounds that absorb and reflect certain wavelengths of visible light, that is, they absorb light and have a color.
They are vital components for the process of photosynthesis, the most important pigment is chlorophyll. Chlorophyll is a large molecule, which captures the energy of sunlight and converts it into high-energy electrons. This occurs during the light reactions of photosynthesis, while high-energy electrons are subsequently used during dark reactions in the synthesis of glucose.
b. hypothalamus
c. cerebrum
d. forebrain
Thalamus of central brain regulates emotions and thinking process of the body. It is involve emotional processing and arousal functions are functions of the thalamus. Thus, option A is correct
The are several components of human brain like cerebrum, cerebellum and brainstem.
A structure called diencephalon present between two hemispheres of cerebrum which has a structure like thalamus,hypothalamus, subthalamus, epithalamus.
Thalamus is a gray matter responsible for sensory and motor activities, alertness, consciousness or wakefulness in humans.
Hypothalamus is a small part of the brain regulates internal balance, send signals to the pituitary gland to produce hormones, regulates heart rate, blood pressure, body weight, appetite, body temperature and sleep cycle.
Certain hormones secreted by hypothalamus are oxytocin, Anti -diuretic hormone, Gonadotropin, Prolactin hormone etc.
Hence, option A is correct
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Answer:
a. the thamlalus
Explanation:
Answer: cell wall structure
Explanation:
b. in the nucleus
c. in a vacuole
d. In the cytoskeleton
Many of the cell's metabolic processes take place in the cytoplasm. The cytoplasm is the area of the cell where general metabolic reactions like protein synthesis, cellular respiration, and waste removal happen.
Many of the cell's metabolic processes occur in the cytoplasm. The cytoplasm is the part of the cell outside the nucleus where a variety of reactions, such as cellular respiration, protein synthesis, and waste removal, occur. The other listed components of the cell – the nucleus, vacuoles, and cytoskeleton, have more specific roles that do not primarily involve general metabolic processes.
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Answer:
D) all above
Explanation:
short answer
The structure that is most likely used for motion is the tail fin of the fish. The correct option is B.
Motion is changing or modifying an object when applying a force. The living body move or locomote with the locomotion organ. These are different types of locomotion organs in different organs.
There are different organs in different animals for locomotion and motion. In humans there are legs, in animals there are paws and in fishes, there are fins, in insects, there are wings and legs.
There is no movement made by the leaf. The dolphin swims with the assistance of its tail, which is moved up and down and in other directions. It is not used to move the apple. The wolf's eye is for sight alone, not for movement.
Thus, the correct option is B. the tail fin of the fish.
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Answer:
It's the picture of the dolphins tale or fin, whatever it's called.
In this case answer B.
Explanation:
The leaf isn't used for motion.
The tail is moved up and down etc.. and creates motion that helps the dolphin swim.
The apple isn't used for motion.
The wolf's eye is used for sight, not motion.
Thus the answer is picture B.
Answer:
small
Explanation:
The overall error rate of DNA polymerase during replication is 10-8 errors per base pair. Repair enzymes fix 99% of these lesions for an overall error rate of 10-10 per bp. That means one change occurs in every 10 billion base pairs that are replicated.
DNA replication is a highly accurate process, occurring rapidly and with a small number of mistakes, due to the efficiency of the DNA polymerase enzyme and the cell's repair mechanisms. However, any uncorrected mistakes can cause significant consequences, like mutations or even diseases like cancer. This process has been closely studied in prokaryotes such as E. coli.
DNA replication, a critical biological process, typically occurs with a remarkably small number of mistakes, thanks to the accuracy of the DNA polymerase enzyme and other repair mechanisms. This process has been particularly well-studied in prokayotes, like E.
coli, which can replicate its 4.6 million base pairs in about 42 minutes, adding around 1000 nucleotides per second.
However, when mistakes do occur and are not corrected, they can lead to mutations which might have serious consequences, such as cancer, particularly if the repair enzymes themselves are mutated or defective.
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