Master Biology with Fun Quizzes & Brain Teasers!

In what way does crossing over influence the genetic variation of offspring? A. Genes from both parents are interchanged, which increases the number of possible combinations that the offspring can receive.B. Chromosomes from both parents are interchanged, which increases the number of possible combinations that the offspring can receive.C. Genes from both parents are kept separate, which reduces the number of possible combinations that the offspring can receive.D. Chromosomes from both parents are kept separate, which reduces the number of possible combinations that the offspring can receive.
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Do leopard geckos die from eating salamanders?A no b yes C they only get sickPLS ANSWER IF YOU ARE PRO By the way I dont have a gecko this is just for school But it would help if a reptile pro could answer this.
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Why can whales not breathe underwater?
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Why can whales not breathe underwater?
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What system does solid waste, nutrient absorption, food,eating fall into?
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A population of 288 cichlids lives in a lake with ample food, oxygen, and shelter. Over the course of one year, 375 new cichlids are born and 105 older cichlids die.Population GrowthStartFraction d Upper N Over d t EndFraction = Upper B minus Upper DWhat is the new population size of cichlids?()
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.a i What does a food chain mean to you? a. ii what is the difference between a prey and a predator?b. i. Draw a food chain with 5 preys and 5 predatorsii. State what the producer, primary consumer, secondary consumer and the tertiary consumers are in any food chain.2. State three reasons why people cut down trees and suggest three ways cutting down trees can be reduced.3. What are the causes of air pollution.4. What is acid rain?b. What causes acid rain?c. what forms does acid rain come?c. State three effects of acid raind. State three ways we can solve acid rain problems.5. What different ways can we reuse plastic containersb. What is recycling?c.How do we encourage people to recycle
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What macromolecules can be found in animal cellsand What macromolecules can be found in plant cells
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i need help pls question is below
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which would a scientist most likely examine to locate gene mutations?
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which of the following types of transport moves molecules from a higher concentration to an area of a lower concentration by use of protein? a.diffusion b.osmosis. c.facilitated diffusion d.active transport
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Give reason:(1) Cell differ in shape and size
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Suppose a graduate student is studying a loss-of-function mutation in the mouse gene zigzag. whereas wild type mice have straight tails, zigzag mutant mice have tails with two sharp kinks, so that the tail looks like the letter z. to determine how the zigzag phenotype is inherited, he performs the crosses listed in the first colu
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Which component of the blood is part of the bodys immune system?
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Without external forces, the third generation of a bacterium and the original parent cell will have approximately ________ matching DNA sequences.(1 point)33%12.5% 100%25%
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When the cell divides from from 1 to 2 and 2to 4 and 4 to 8 and so on, what process isthis?
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Atoms of two different elements must have o ferentelectrical charges.numbers of neutrons.o atomic numbers.O energy levels.
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food contains several components called as?
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Please answer the ones u know and Answer them correctly because this is part of my grade :)
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A single-celled zygote develops into a multicellular organism with specialized cells through the processes of
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Coffee is an example of a
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Fossils are usuallyusually found in
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Prevailing winds blow from the Pacific Ocean toward two cities separated by mountains. City A is on the leeward side ofthe mountains and city B is on the windward side. Which city is likely to have a wetter climate? Explain your answer.
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which statement correctly describes the relation skip between genes, proteins, and traits?
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