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Home Question Bank Biology Archive 2025 January 06

Biology Questions from Jan 06,2025

Browse the Biology Q&A Archive for Jan 06,2025, featuring a collection of homework questions and answers from this day. Find detailed solutions to enhance your understanding.

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2. Which of the following statements about plastic particles is TRUE? Choose all that apply. They are found only in water. They are not found in soil or air. Some plastic particles are too small to see. Microplastics, which are less than 5 millimeters in length, have been found nearly everywhere on Earth. Plants do not absorb plastic from the environment. Nanoplastics are extremely small plastic particles, smaller than a bacterium. 1. From Earth's atmosphere, where can the carbon atom go next? A scientist uses the expression \( (2.5) \cdot\left(\frac{1}{2}\right)^{\frac{t}{5730}} \) to model the number of picograms of carbon- 14 remaining in a different fossil \( t \) years after \( 20,000 \mathrm{BC} \). a) What do the \( 2.5, \frac{1}{2} \), and 5730 mean in this situation? b) Would more or less than 0.1 picogram of carbon- 14 remain in this fossil today Explain how you know. 4. Where de polar bears live? 2. What de they eat? The pelar bear is a larue mammal if lives in oold places like the Aretie, Pelar Bears ilve on to en and snow they are eamiveres and hunt seate for feed. A palar hear can be 2. 5 melers tall and welgh 490 hilourams. Ite fur is while and thiek to keep it warm. Polar bears have black neses and small ears, They are strong Ewimmors and hutiers Polar heare can live for 20 to 30 years. People alse humt potar bears for food and elothes. 11. The stage in interphase where the DNA is 12. The stage of interphase where the cell grows and prepares for mitosis is is the S-phase. 13. After mitosis the cytoplasm divides this process is called 14. The long. stringy, uncoiled form of DNA is called 15. DNA coils up before the cell divides into structures called 16. If the parent cell has 18 chromosomes, after mitosis how many chromosomes will be present in the daughter cells? 10. The stage of interphase when the cell grows is called __ The stage in interphase where the DNA is 11. The stage of interphase where the cell grows and prepares for mitosis is 13. After mitosis the cytoplasm divides this process is called 14. The long, stringy, uncoiled form of DNA is called 15. DNA coils up before the cell divides into structures called 16. If the parent cell has 18 chromosomes, after mitosis how many chromosomes will be present in the daughter cells? 6. Animal cells form a during cell division. 7. Plant cells form a during cell division. 8. Animal cells have organelles found in pairs near the nucleus that help pull the chromatids apart during cell division. These organelles that aid in division called 9. The longest phase of the cell cycle is 4. Your body cells have two full sets of chromosomes so we call them __ loid. 5. The chromosomes that are not used to determine you gender are called ___ during cell division. 6. Animal cells form a 2. Dissimilatsiya jarayonining ikkinchi bosqichida necha kJ energiya ajralib chigadi? \( \begin{array}{llll}\text { A. } 100 & \text { B. } 200 & \text { C. } 300 & \text { D. } 400\end{array} \) Proteins are made only of carbon, hydrogen, oxygen and nitrogen (CHON). Nucleic acids such as DNA and RNA contain carbon, hydrogen, oxygen, nitr phosphorus (CHNOP). Directions: Use the drawing below to determine the number of bonds for \[ \text { Oxygen Hydrogen } \] Remember, the number of lines is the number of bonds.
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