Biology Questions and Answers

What is the product of meiosis II?

What three things are used to make glucose in photosynthesis?

Are lysosomes found in: A. Eukaryotic cells B. Prokaryotic cells C. Both eukaryotic and prokaryotic cells D. Neither eukaryotic nor prokaryotic cells

Which nitrogenous base is found in RNA but not in DNA, and what is its role in RNA? A) Adenine, which pairs with uracil in RNA. B) Cytosine, which pairs with thymine in RNA. C) Guanine, which pairs with adenine in RNA. D) Uracil, which is one of the four nitrogenous bases in RNA but not found in DNA.

Select the correct answer from each drop-down menu. What is the 10 percent rule? The 10 percent rule states that when an organism/species is consumed by another organism/species of a higher trophic level, the latter only retains 10% of the energy. The rest of the energy is lost during energy transfer, or transformed as heat, or lost to incomplete digestion by species of a higher trophic level.

Viruses are not considered living organisms because they do not independently grow, metabolize, or reproduce. A. True B. False

Differentiate between the male and female version of a ladybug. What are the progeny of the ladybug called? Elaborate using a diagram.

What is the main goal of the process of photosynthesis?

# Lab Report: 14 Bacteriophage Specificity 1. What was the purpose of this exercise? 2. Complete the following table with your observations: | Name of the bacterium | Lysis (yes / no) | | --- | --- | | S. Aureus (1) | Yes | | E. Coli ( - ) | Yes | | Ent. Aerogenes ( - ) | No | 1. How do you know if bacteriophage infected the bacteria? You can see a plaque. 4. Why didn't the bacteriophage infect all three bacteria? Hest Cell Specificity What is the explanation for bacteriophage specificity when it comes to infecting specific bacterium? "ceptors

What do you call a tree without any leaves?

What does mitosis accomplish that would go wrong if the cell simply split down the middle during cell division?

Which phrase correctly defines a gene? A. a complete protein B. a segment of DNA C. a segment of a protein D. a part of the cell membrane

What is the scientific name of the Australian animal that drastically changes its appearance when removed from its natural habitat?

Explain how the alleles were passed from parents to offspring.

About $\frac{2}{3}$ of the mass of this cell is: A. air B. ribosomes C. proteins D. water

Why does a frog have 4 fingers but 5 toes?

A 9:3:3:1 ratio is obtained in the F2 generation of a dihybrid cross when alleles assort independently from one another.

Which answer best describes another function of the cell membrane? A) The cell membrane helps to protect only plant cells from larger molecules. B) The selective barrier allows small molecules to enter and exit in animal and plant cells. C) Animal cells have a thick cell membrane to keep the cells rigid. D) The cell membrane keeps material from entering and exiting the cell.

What is the function of chloroplasts? Pick the statement that best describes this. A. To synthesize ATP for cellular reactions B. To use light to produce glucose for the cell during photosynthesis C. To generate energy for the cell to function D. To act as the powerhouse of the cell

What is the relationship between a silverfish and army ants?

Give an example of a 5-organism food chain. Indicate the level of consumer and the type for each organism.

Which statement describes a sarcomere? A segment of the sarcoplasmic reticulum A group of fascicles A group of muscle fibers A segment of a muscle fiber

Create a diagram or model of photosynthesis and cellular respiration. Draw a producer (e.g., a plant). Add the inputs and outputs for photosynthesis. Illustrate cellular respiration within the mitochondria of a plant cell. Add the inputs and outputs for cellular respiration.

What are the inputs and outputs of cellular respiration and photosynthesis?

What is the average height for 13-year-old boys and girls?

What kind of ocean animal eats penguins?

What is the end result of mitosis and cytokinesis, and why is it important?

What is the function of the promoter region in gene expression?

What is the end product of meiosis?

Do you think that speciation could someday happen to Enhydra lutris? Explain why or why not.

Use the food web below to answer questions a-f. Kookaburra Mouse Rabbit Wedged-tailed eagle Grass Snake Grasshopper a. What is the producer? b. What are the primary consumers? c. What are the secondary consumers? d. What are the tertiary consumers? e. What is the top predator? f. Construct one food chain that you see in the food web.

Why is RNA necessary to act as a messenger? Why can't the code be taken directly from the DNA?

Which base is found in RNA but not in DNA? A. adenine B. guanine C. uracil D. cytosine

Passage: Chimney Swifts Chimney swifts are small, slender birds that have become a symbol of summer for many. They usually appear in North America during warm, summer months as they make their way to more tropical sites for the winter. They are recognized most often as spectacular, chirping flocks moving through the sky in synchrony. Chimney swifts can be seen most vividly at dusk when large colonies of hundreds, or even thousands of individuals form tornado-like funnels as they descend into the chimneys. Unfortunately, the size of the colonies we see is misleading. Though the numbers may seem remarkable, chimney swift populations have been declining sharply since the 1970's due primarily to habitat loss. Unlike most birds, chimney swifts cannot perch or stand upright, so they require long, hollow spaces that are enclosed to provide safe roosting and nesting sites. Historically, chimney swifts preferred hollow trees. However, as pioneers colonized territory and replaced forests with towns, the species was forced to adapt by using other structures, such as chimneys. In the US, a large-scale shift to alternate heat sources, chimney-capping and the use of fabricated chimneys has drastically impacted their ability to nest during migration. Traditionally, chimneys were lined with clay, which the swifts were able to cling to and make their nests. Newer, prefabricated chimneys are often lined with metal flues that make it impossible for them to use. In addition, logging and deforestation may make finding suitable overwintering habitat more challenging than ever. In an effort to sustain the remaining population, conservation groups have designed supplemental housing structures, called ""Chimney towers."" These towers are designed specifically to provide roosting sites for chimney swifts, Chimney swifts now rely almost entirely on man-made structures like these to survive. However, because this species is remarkably adaptable, even minimal conservation efforts like keeping traditional masonry chimneys uncapped during the summer months can drastically improve their chance of survival. Question: Which of the following can be inferred from the information in the passage? A. Logging industry production dramatically increased around 1970. B. Changes in home design and home heating occurred in the late 1970s. C. The way we tracked chimney swift populations changed in the 1970s. D. The chimney swift's adaptability was severely hindered around 1970s. Question: Which of the following conclusions can the reader make from the passage? A. Metal flumes are inserted in masonry chimneys to prevent birds, such as chimney swifts, from nesting in them. B. Chimney swifts can easily adapt roosting behaviors to any structure made of the proper material. C. Chimney swifts are nocturnal birds whose large numbers are evident in the size of their colonies. D. Moving in large chipping flocks is a natural protection against predators. >>> PLEASE explain your answer choice and why the others are NOT the right answer."

What kingdoms of living organisms contain prokaryotic cells? What kingdoms of living organisms contain eukaryotic cells?

Triglycerides are the monomers for what type of macromolecule? A. Proteins B. Carbohydrates C. Lipids D. Nucleic Acids

What is humus made of? (Select all that apply.) A. earthworms B. nutrients C. bacteria D. rocks

What happens during the G0 phase of the cell cycle?

What happens in the G2 phase of the cell cycle?

White-tailed deer eat leaves and grasses in their ecosystem. Which of the following terms best describes a white-tailed deer? A. Predator B. Secondary consumer C. Producer D. Primary consumer