Biology

Question 5 of 102 PointsWhere are you most likely to find plant roots?!O A. ChorizonOB. O horizonOC. A horizonOD. B horizonSUBMIT
2 Answers
Someone pls help me 9th grade biology Asp
1 Answer
Scientists use a standardized taxonomic system to separate organisms into hierarchical groups based onsimilarities and differences in their structural and genetic characteristicsWhich of the following best explains why a standardized classification system is important to the scientificcommunity?It provides a detailed evolutionary history of all the known organisms on EarthIt allows different kinds of organisms to be easily identified based on their characteristicsIt allows scientists to group organisms based on their personal preferenceIt prevents people who are not scientists from studying and identifying organisms.it allows scientists to to group organisms based on their personal preference it prevents people who are not scientists from studying and identifying organisms
2 Answers
How do you do letter c
1 Answer
What is the difference between genus and species?
2 Answers
If a heterogeneous woman with traits for dark hair and freckles has a bay with a man with the same traits what is the chance their child would be born no freckles and light haired
1 Answer
Who was the first african american to be on a u.S. Postage stamp
1 Answer
What natural object inspired the structure of a submarine ballast tank?
1 Answer
1.6. Sierra is asked to demonstrate how carbon travels from the atmosphere to living organisms, thenback to the atmosphere. She draws a diagram showing carbon dioxide from the atmosphere beingtaken in by a plant. An animal then consumes the carbon dioxide in the plant, uses it as a source ofenergy, then exhales, returning the carbon dioxide to the atmosphere.What step in this diagram needs to be corrected?A. Animals do not release carbon dioxide; only plants do.B. Animals do not use carbon dioxide as an energy source; they use carbohydrates.C. Plants do not transfer carbon to animals; animals absorb it directly from the atmosphere.D. Plants do not absorb carbon dioxide from the atmosphere; they only absorb it from the ground.
2 Answers
You have spent time working with a population of beetles. Sexually mature males range in size from 2-6 cm in length. You realize that the females only mate with males that measure less than 3 cm long. If you measured allele frequencies at a single gene (locus) that contributes to overall length, would you expect this population to be in H-W equilibrium from one generation to the next?
1 Answer
Which of the following is likely to happen at a location that has huge reddish sandstone rocks?Sinkholes may form due to wind erosion. Sinkholes may form due to water erosion. Arches may form due to glacial movement. Arches may form due to weathering and erosion.P.s Please answer fast!!!And also if you answer quickly that would be much appreciated!!!
1 Answer
The blood leaving the aorta reaches the circle of Willis, a collection of arteries that supplies blood to the brain. Assume that it takes 600 ms for blood to reach the circle of Willis and that its average velocity is reduced to 61 cm/s. What is the average acceleration experienced by the blood?
2 Answers
Skeletal muscle is _____.a. "voluntary" because its contraction is deliberateb. classified as a subtype of cardiac musclec. also known as smooth muscled. "involuntary" muscle and its movement is not deliberatee. made up of cells with a single nucleus
2 Answers
When comparing liver cells and kidney cells within an organism, many differences can be observed and documented. Which of following is not a difference between liver cells and kidney cells in the same animal?Choose one:A. The different cells have different roles in the body.B. The different cells are generated during the animal's development.C. The different cells produce different proteins.D. The different cells express different genes.E. The different cells have different DNA.
1 Answer
Describe how the structure of a virus aids in its ability to infect cells.
2 Answers
The idea that the bacterial genome is ""loose"" in the cytoplasm is incorrect because Choose one: A. the DNA is attached to the cell envelope and organized into domains through supercoiling and DNA-binding proteins. BY. attached ribosomes prevent tangling of the DNA. C. bacterial cells have a nucleus. D. the DNA is usually condensed into a chromosome.
2 Answers
Question: Laboratory 1: Tools For Scientific Inquiry Questions For Review 1. A Group Of Students Hypothesizes That The Amount Of Alcohol Produced On Depends On The Amount Of Glucose Supplied To The Yeast. They Want To Use 5%, 10%, 15%, 20%, 25%, And 30% Glucose Solutions. A. What Is The Independent Variable? B. What Is The Dependent Variable? C. What Control ...
1 Answer
For a science fair project, two students decided to repeat the Hershey and Chase experiment, with modifications. They decided to label the nitrogen of the DNA, rather than the phosphate. They reasoned that each nucleotide has only one phosphate and two to five nitrogens. Thus, labeling the nitrogens would provide a stronger signal than labeling the phosphates. Why won't this experiment work?A) Radioactive nitrogen has a half-life of 100,000 years, and the material would be too dangerous for too long.B) There is no radioactive isotope of nitrogen.C) Although there are more nitrogens in a nucleotide, labeled phosphates actually have 16 extra neutrons; therefore, they are more radioactive.D) Amino acids (and thus proteins) also have nitrogen atoms; thus, the radioactivity would not distinguish between DNA and proteins.
1 Answer
5. Why are index fossils useful in dating rock layers?
1 Answer
What theory of hearing contends that areas of the basilar membrane are highly specialized, with each area responding to a different frequency?
2 Answers
You have a total body concentration of 300 mOsM and total body volume of 3 liters. If you add 0.5 L of a solution containing 150 mosmol of NaCl to the body, what would the new total body concentration be?a) 450 mOsMb) 300 mOsMc) 350 mOsMd) 700 mOsM
1 Answer
A person who is ______ perceives themself as a member of a different gender from the one assigned at birth.
1 Answer
If an atom has 16 protons, 14 neutrons, and 20 electrons, what is the atom's electrical charge?
1 Answer
The biosphere:ends at the surface of the earthextends miles below the surface of the earthincludes all the living organisms on the planetall of the above
1 Answer