Hot Student Stories

Biology

More friction between water and streambed will reduce the speed of flowing water. true or false.

Samantha Barber

follow
followin
1 answer
3 views

What did Chargaff discover while studying bases in the DNA of organisms A.The bases in the DNA of each organism were unique. B.The ratios of thymine and adenine were similar, as were the ratios of guanine and cytosine. C.The overall percentages of bases were different from one organism to the next. D.There were equal amounts of all four bases in every organism, or 25 percent of each base.

Curtis Rhodes

follow
followin
1 answer
4 views

What are the flattened membranes in chloroplasts called

Nicholas Rivera

follow
followin
1 answer
3 views

A _____ is a horizontal stem that can divide and grow in several directions at once. corm rhizome stolon bulb

Amanda Johnson

follow
followin
1 answer
10 views

Which statement best describes the energy changes associated with evaporation and boiling?

Jeffrey Rodriguez

follow
followin
1 answer
3 views

Chemical energy is transduced to the electrochemical energy of neural impulses at the retina cochlea (I know this one isn't right) ganglion cells olfactory mucosa semi-circular canals

Whitney Matthews

follow
followin
1 answer
2 views

A(n) _______________ is made up of a glycerol backbone attached to three fatty acids.

Samantha Barber

follow
followin
1 answer
3 views

Select all that apply. Select the items that have a pH level between 5 and 8. pure water Great Salt Lake saliva ammonia

Heather Maxwell

follow
followin
1 answer
3 views

M. J. Schleiden shifted the scientific community's attention to cellular processes with his A. attention to disproving spontaneous generation B. publication of ideas on cell generation C. theories on the division of cells D. claim that cells were the basic unit of all plant matter

Curtis Rhodes

follow
followin
1 answer
4 views

A weakened immune system may be caused by an overproduction of lysozymes. muscle disorders. immunodeficiency disorders. complement systems in the blood.

Bethany Evans

follow
followin
1 answer
3 views

What happened to all the continents by the close of the Paleozoic era

Zach Chandler

follow
followin
1 answer
2 views

Which is a component of a phospholipid? carbon ring hydrophilic head long-chain alcohol amino acid

Ross Pratt

follow
followin
1 answer
3 views

If the victim of a toxicologic emergency vomits, an emt should _________.

Brandon Scott

follow
followin
1 answer
3 views

Characters traits can be discovered by analyzing __________. hyperbole imagery characterization syntax

Ronald Miller

follow
followin
1 answer
2 views

Which statements are correct concerning human DNA? a. It contains 23 chromosomes b. It contains 46 chromosomes c. Each strand contains chromosomes from one parent. d. Each chromosome contains 23 genes.

Tara Andrews

follow
followin
1 answer
3 views

What is one reason why the classification of protists in one kingdom is difficult

Kathy Robinson

follow
followin
1 answer
3 views

Errorat what blood alcohol level do most social drinkers quit drinking?

Kevin Sutter

follow
followin
1 answer
3 views

Describe how you can avoid spreading invasive plant species.

Karen Wright

follow
followin
1 answer
3 views

How many energy conversions occur when both acetyl-CoA molecules go through the Krebs cycle

Ross Pratt

follow
followin
1 answer
3 views

Unlike incomplete metamorphosis, complete metamorphosis A. includes a nymph stage, where the insect looks like a small adult. B. includes an immature stage. C. contains an adult stage. D. produces an adult that's completely different from the larva

Ashley Howard

follow
followin
1 answer
13 views

Halitosis is the medical terminology for .

Nicholas Rivera

follow
followin
1 answer
4 views

What enzyme speeds up the breakdown of proteins in food?

Annie Barnes

follow
followin
1 answer
4 views

Polymers are large organic molecules that are made of a. cations. c. carbon and oxygen only. b. anions. d. repeating units.

Karen Wright

follow
followin
1 answer
3 views

Which of the following best describes the result of meiosis II? Four genetically different, diploid daughter cells Four genetically different, haploid daughter cells Four genetically identical, diploid daughter cells Four genetically identical, haploid daughter cells I think it's C or B but I'm not sure.. please help.

Blair Lewis

follow
followin
1 answer
4 views

Which best describes how an ionic bond forms? A. One atom pulls an electron from another atom. B. Two atoms both lose an electron. C. Two molecules share an electron. D. Two atoms share valence electrons

Mindee Nelson

follow
followin
1 answer
3 views

How was the Cretaceous period different from the Jurassic period??

Theresa Perry

follow
followin
1 answer
3 views

Hot springs are heated geothermally by underlying __________.

Brandon Scott

follow
followin
1 answer
3 views

Migratory birds in the tundra feed mostly on?

Cynthia Baker

follow
followin
1 answer
3 views

A fern grows sporangia under its fronds. What is the next step in its life cycle? Mitosis Gametophyte Gametes Spores

Justin Parker

follow
followin
1 answer
3 views

When you buy bulk, the price per individual items A. Increases B. Decreases C. Stays the same

Justin Parker

follow
followin
1 answer
4 views

About how long after fertilization do human cells lose totipotency

Annie Barnes

follow
followin
1 answer
3 views

Why is UVA light considered a mutagen? It penetrates the skin and can cause mutations. It can be prevented by wearing a protective vest. It produces chemicals that can be inhaled. It is found in synthetic dyes and cosmetics.

Caroline Campbell

follow
followin
1 answer
3 views

Which of the following statements about tolerance range is true? a. Tolerance range is different for different organisms. b. The tolerance range is the total number of organisms that can be supported by an ecosystem. c. Tolerance range is affected by biotic factors in an ecosystem. d. The available water supply does not impact an organism’s tolerance range.

Justin Parker

follow
followin
1 answer
8 views

How is the phosphorus cycle different from the oxygen, nitrogen, and carbon cycles

Eric Morgan

follow
followin
1 answer
3 views

A seasonal color change helps animals in the taiga to _______. a. evade predators b. find shelter c. find food d. stay warm in winte

Chelsea Hayes

follow
followin
1 answer
4 views

Which of the following statements accurately describes the phases of the menstrual cycle in humans?

Whitney Matthews

follow
followin
1 answer
2 views

Which statement concerning osmosis and active transport is correct? Question 4 options: Neither facilitated diffusion nor osmosis requires cell energy. Diffusion of gases and other small molecules requires no energy on the part of the cell. Active transport requires cell energy and osmosis doesn't. Both endocytosis and active transport require cell energy.

William Cain

follow
followin
1 answer
2 views

At which point in the eukaryotic cell cycle does mitosis occur?

Cynthia Baker

follow
followin
1 answer
4 views

How are organisms in the bacteria and archaea domains similar apex?

Alexa Spicer

follow
followin
1 answer
2 views

The inside of a membrane bilayer is _____. A-nonpermeable B-polar C-hydrophobic D-hydrophilic

Karen Wright

follow
followin
1 answer
3 views

How quickly a drug enters your bloodstream also depends on __________.

Jodi Brooks

follow
followin
1 answer
3 views

Plants do not adapt to their environment because they do not compete for resources. true or false

Donald Ward

follow
followin
1 answer
3 views

What are the components of adenosine triphosphate (atp)? sugar three phosphates adenosine one phosphate base three phosphates base sugar three phosphates

Jessie Thompson

follow
followin
1 answer
2 views

What three things most directly affect carrying capacity?

Ashley Howard

follow
followin
1 answer
4 views

More than 50% of ecosystems are currently being used unsustainably. true or false

Ralph Lopez

follow
followin
1 answer
6 views

The competitive exclusion principle states that two organisms cannot fill the same niche. Please select the best answer from the choices provided T F

Bethany Evans

follow
followin
1 answer
3 views

Each trait of a plant is determined by _____. an allele one gene a pair of genes one dominant gene

Heather Maxwell

follow
followin
1 answer
2 views

The difference between protostomes and deuterostomes is _____. protostomes have only an ectoderm and endoderm protostomes have only a mesoderm protostomes develop a mouth first and then an anus protostomes develop an anus first and then a mouth

Rodney Fox

follow
followin
1 answer
3 views

At higher concentrations, auxins stimulate production of which of the following hormones? A) cytosine B) xylemene C) ethylene

Timothy Norman

follow
followin
1 answer
2 views

Which is a key element found in all carbohydrates, lipids, proteins, and nucleic acids? A. ammonia B. carbon C. nitrogen D. legumes

Nicholas Rivera

follow
followin
1 answer
3 views