Answer:
B & D
Explanation:
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Noctiluca is a dinoflagellate in the Domain Eukaryota, Superphylum Alveolata, Phylum Dinoflagellata, in the class Noctiluciphyceae, and in the order Noctilucales.
According to Linderman's ten per cent law, Grass obtains 10%of the energy from sun. when the mouse eats the grass it only get 10 <span>percent of the sun's energy while 90 is lost to heat</span>
The blood vessels farthest from the heart must have valves.
The valves which are present in the blood vessels prevent the backflow of the blood back into the specific organ.
There are different valves present in the heart are:
- The tricuspid valve is situated between the right atrium and right ventricle.
- The pulmonary valve is between the right ventricle and the pulmonary artery.
- The mitral valve is between the left atrium and left ventricle.
- The aortic valve is between the left ventricle and the aorta.
Other vales which are present in the blood vessels are in leg. Leg veins do require the valves. If not present the blood will go back down into the feet because of the gravity. Thus there are various valves present in the leg veins.
Valves in veins are bicuspid, meaning they have two flap-like structures that regulate blood flow in the vein.
To know more about the Valves, refer to this link:
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Answer:
Through the transcription process, an mRNA molecule is produced from a complementary strand of DNA. mRNA contains codons, which are triplets of bases encoding amino acids. These amino acids will be transported by the tRNA and joined in the ribosome to form a protein. A point mutation in the hemoglobin gene causes one amino acid to swap for another, making the final protein unstable.