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Questions in biology

[Free] Use the Punnett Square below to answer the question. YY or Yy = yellow flowers yy = white flowers GG or Gg = green seeds gg = black seeds What percent of offspring are homozygous recessive for both traits? A. $25 \%$ B. $6.3 \%$ C. $18.7 \%

[Free] Identify whether each of the following organisms are biotic or abiotic factors: - Grass - Deer - Mushroom - Hawk - Sun Explain how each of the following human activities can impact an ecosystem: - Clearing forests for agriculture and development - Using pesticides and herbicides on crops

[Free] 1. Write the parts of the digestive system. Bladder Urethra Ureters Kidney 2. Say if the following sentences are true or false. a) The function of the excretory system is to expel waste from the body. TRUE FALSE b) The ureters filter the blood and separate the waste and the water. TRUE FALSE c) The combination of waste and water forms the ureter. TRUE FALSE d) The urine goes down two tubes called ureters. TRUE FALSE e) When the kidney is full, your body tells you to go to the bathroom. TRUE FALSE

[Free] 4. The body covering of fish and snake. 5. The seasonal movement of animals from one region to another.

[Free] A trait in a population of dogs has two alleles, which are represented by $p$ and $q$. The frequency of each allele is represented by a percentage. If $p+q=1$ and $p=0.07$, what is $q$? A. 0.93 B. 0.07 C. 0.26 D. 0.74

[Free] Which immune system component initially results in the inflammation and responds quickly when Staphylococcus aureus enters the bloodstream? A. complement system B. phagocytes C. Langerhans cells D. B lymphocytes

[Free] Very short answer questions 1. List the types of heterotrophic nutrition. 2. Define the term 'egestion'. 3. Name the different types of teeth in our mouth. 4. What is the function of throat? 5. Which part of the digestive system receives the waste, undigested food? 6. Define 'food vacuole'.

[Free] Write on the space provided. 1. Mr. Perez wanted to see if the color of light shined on a plant had an effect on the number of leaves it had. He gathered 2 groups of the same species of plants, gave them the same amount of water, and did the test for the same amount of time. On one group of plants he used white light. On the second group he changed the light color to red. a. Experimental Group b. Control Group 2. You are managing a large feed lot of cattle. A pharmaceutical company wants you to try a new antibiotic to treat shipping fever in newly arrived cattle. You are currently not using any antibiotic to treat shipping fever in your cattle. The company claims that it is more effective and will save you money using this antibiotic. You will use the same feed, water and conditions of the cattle. You will measure the temperature of the cattle's fevers to see whether or not the new antibiotic works on treating shipping fever. a. Experimental Group b. Control Group 3. Carlo notices that his shower is covered in a strange green slime. His friend Marco tells him that coconut juice will get rid of the green slime. Carlo decides to check this out by spraying half of the shower with coconut juice. He sprays the other half of the shower with water. After 3 days of "treatment" there is no change in the appearance of the green slime on either side of the shower. a. Experimental Group b. Control Group EXERCISE 3. REDI'S EXPERIMENT

[Free] 3. How can we ensure that our bird feeder is safe for birds? 4. What shapes or designs do you think might attract different types of birds?

[Free] How does a cactus survive a dry desert? Cactus survive in a dry desert through adaptations such as water storage in its stem, reduced leaves to minimize water loss, and deep or widespread roots to absorb water. Why do camels have thick eyelashes and long legs?