VincenTragosta - Tanya, Jawab, dan Belajar Tanpa Batas Logo

Questions in biology

[Terjawab] Cyanobacteria have been engineered to produce isobutanol directly. What advantage does this have over a inherently renewable fuel source? A. Multiple processing steps can be avoided. B. They produce chemical energy through photosynthesis. C. They make a biofuel alternative to gasoline.

[Terjawab] Determine if the following statement is true or false, and why. "All mutations are harmful and increase the risk of diseases such as cancer." A. True B. False, it should read "Some mutations may be beneficial, but many are harmful and increase the risk of diseases such as cancer." C. False, it should read "All mutations are beneficial" D. False, it should read "Some mutations may be harmful and increase the risk of diseases such as cancer, but many are beneficial"

[Terjawab] Which of the following accurately describes the difference between cell types in the body (e.g., heart cells and liver cells)? A) They have different DNA and thus express different genes. B) They have the same DNA, but express different genes. C) They have the same DNA and they express the same genes.

[Terjawab] Is the return to negative potential as K+ exits through voltage-gated K+ channels hyperpolarization, repolarization, threshold, depolarization, or all-or-none?

[Terjawab] Directions: Construct a Punnett square using the given genotype and identify its phenotype. Write your answer on your one whole sheet of paper. I. Under Mendelian Genetics, Law of Dominance Parents' Allele - E - Attached earlobes, e - unattached earlobes 1. Ee x ee 2. Ee x Ee 3. Ee x ee 4. Ee x Ee Parents' Allele - W - white skin, w - dark skin 1. Ww x Ww 2. Ww x Ww 3. Ww x ww 4. ww x Ww II. Under Incomplete Dominance Allele - C - straight hair, e - wavy hair 1. CC x ee 2. Ce x Ce 3. Ee c Ce Allele - B brown chicken, a - white chicken 1. BB x aa 2. BB x Ba 3. Aa x Ba Allele - W - white flower, f - red flower, Wf - pink flower 1. Ww x ff 2. Ww x Wf 3. Wf x Wf Allele - H - white wolf, h - black wolf. 1. HH x Hh 2. hh x hh 3. Hh x Hh

[Terjawab] The fluid that lubricates the articular cartilage of articulating bones in a synovial joint is called _______ fluid.

[Terjawab] Which of the following statements is true? A. When estrogens and testosterone decline in women, their mating preferences change. B. Researchers are exploring and debating whether women's mating preferences change across the menstrual cycle. C. Women's mating preferences do not change based on the timing of ovulation. D. Changes across the menstrual cycle do not affect women's mating preferences.

[Terjawab] What's the similarity between the cells of the groups Thallophyta, Bryophyta, and Pteridophyta, respecting the differences in their body structure?

[Terjawab] What information can a scientist learn directly from a single fossil? A. How the organism is related to organisms on Earth today B. What the organism looked like C. How many offspring the organism produced D. How long the organism lived

[Terjawab] A. Answer the following questions. 1. If solid and liquid wastes are removed by the body through defecation and urination, what is released by the body during respiration? 2. What will happen if the blood vessel in the body is blocked? 3. How can you take care of your respiratory and circulatory systems? B. Trace the pathway of blood as it circulates our body starting from our lungs. * Left Atrium * Veins * Capillaries * Right Ventricle * Arteries * Left Ventricle * Right Atrium From the Lungs -> -> -> -> -> ->