Answer: The answer is b.
Explanation: The flowers are one of the most differentiating features of angiosperms. They are the reproductive structures of angiosperms. The flower has a thalamus that is a short axis and four whorls of sporophylls arranged on the thalamus. The four whorls of floral leaves include calyx, corolla, androecium and gymnocium.
Answer:
What sends oxygenated blood back to the heart from the lungs?
Oxygen-rich blood flows from the lungs back into the left atrium (LA), or the left upper chamber of the heart, through four pulmonary veins. Oxygen-rich blood then flows through the mitral valve (MV) into the left ventricle (LV), or the left lower chamber.
Explanation:
Glucose is used by plants for energy and to make other substances like cellulose and starch.
Answer: It may be unethical to some people due to their beliefs. But as science evolves,genetic engineering has made it possible for us to modify many things,including human DNA. To me,changing human DNA is ethical. Changes in DNA bring many positive consequences,for example lower the risk of many deadly diseases(cancer/cystic fibrosis,etc). We can modify our features and create "a perfect human". But,there are some dangers that come with this power. For example,DNA modification could go wrong and create dangerous species
Explanation:
Answer:
Ribose and Deoxyribose. The 5-carbon sugars ribose and deoxyribose are important components of nucleotides, and are found in RNA and DNA, respectively. The sugars found in nucleic acids are pentose sugars; a pentose sugar has five carbon atoms. A combination of a base and a sugar is called a nucleoside.
