Master Biology with Fun Quizzes & Brain Teasers!

how are unicellular and multicellular organisms different
1 Answer
Stabilizing selective pressures result in _______. a. rapid, broad evolutionary changes b. limited evolutionary changes c. an increase in genetic diversity d. extreme gene distributions
2 Answers
How do you determine the amount of electrons and protons?
2 Answers
A large bar of solid gold is melted into liquid. The liquid is then poured intomolds to make a number of gold coins. Was this a chemical or physicalchange? Explain.Chemical, because the gold turned into something new and is no longer gold.Physical, because the gold changed size and shape, but is still gold.
1 Answer
Why have plants in the alpine biome adapted to survive on limited nutrients?
2 Answers
Which of the following is an example of passive transport across a membrane?athe movement of H+ into a thylakoid disc during photosynthesisbthe uptake of glucose in the intestinethe uptake of mineral ions into root hair cells of plantsdthe movement of water from the descending loop of a nephron into the interstitium
1 Answer
Sea Lampreys, a jawless fish that feeds on other aquaticanimals, is considered a pest in the Great Lakes ofMichigan, An ecologist wanted to determine thepercentage of the Lake Trout population was affected bythe lamprey He captured and released hundreds of LakeTrout making note which ones were being fed upon by theLamprey. The ecologist conducted this study over a 6month period and determined that over half of the LakeTrout population were affected by the Sea Lampreys.What is the best Problem for this experiment?wWhy are Sea Lampreys a problem in the Great Lakes?What types of fish de the Sea Lampreys feed upon?How are the Sea Lampreys getting into the Great Lakes?What percentage of the Lake Trout are affected by the Sea Lamprey?here it is for the person who commented on mine
1 Answer
PLS HELP!!!!!!A ____ reaction is the change that takes place when two or more substances interact to form new substances.
2 Answers
Fragments of metal or rock which enter the Earth's atmosphere from space are called:Meteorites Meteoroids Meteors
2 Answers
Please help its times Ill mark you brainliest
2 Answers
What are the 17 crops that California is the sole producer
1 Answer
Why does the amount of protons and electrons stay the same in stable atoms?
1 Answer
Which of the following describes a chemical change? *Clear liquids mix, producing a cloudy liquid and a yellow powder.Silver coins are melted down and shaped into a solid brick.Salt is added to a pot of hot water, and the water's boiling point changes.OAn apple is chopped into eight slices.
1 Answer
I DONT UNDERSTAND GENOTYPES AND PHENOTYPES HELP
2 Answers
I DONT UNDERSTAND GENOTYPES AND PHENOTYPES HELP
2 Answers
To see a general vlew of a mlcroscope sllde, use_____ power. If you need to see a more speclfic and detalled vlew, Use___________ power.
1 Answer
What is a way that humans enjoy acute stress ?
1 Answer
Help please this is biology unit 1 test and im going to be posting the questions i need help with soo
1 Answer
. An astronaut weighs 120 Newtons on the moon, where the strength of gravity is 1.6 N/Kg. What is hermass in Kg?
1 Answer
what is a biotic factor that affects population size A. weather B. human impact C. avaliable sunlight D. Trash consumption
1 Answer
Differentiate between breathing and respirationYour answers
1 Answer
any bodily movement produce by skeletal muscles that requires energy expenditure
1 Answer
Order the following from largest to smallest:chromosome nucleus nucleotide DNA-histone complex genecell double-helix
1 Answer
1. How many food chains make up the food web?2. Which organism is an herbivore?3. Which organism is an autotroph?4. Which organism is a third-order heterotroph? To what trophic level does that organism belong?5. Which organism is an omnivore?6. Which organisms belong to more than one food chain? 7. Which organism belongs to more than one trophic level?8. What are decomposers? From which trophic levels are the organisms that decomposers feed on? 9. What does a pyramid of energy show about the amount of energy available at different trophic levels of a food chain?10. Why do different trophic levels have different amounts of energy?
1 Answer