4,064 Answered Questions for the topic biology

Biology

12/18/19

A fire alarm goes off. Is this considered a response or not since it's not an actual organism?
I'm aware that a stimulus will trigger a response. An example being an animal is cold so it moves towards the sun. However I also recall hearing that a response can only come from a living... more
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Biology

12/16/19

Arrange the following evolutionary innovations from most ancient to most recent.
Deuterostome developmentVertebral columnJawCephalization
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Biology

12/16/19

Arrange the following evolutionary innovations from most ancient to most recent.
FlowersVascular tissueLand plantsSeeds
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Biology

12/16/19

Arrange the following from most inclusive (largest group) to least inclusive (smallest group).
Vascular plantsAngiospermsSeed plantsPhotoautotrophs
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Biology

12/16/19

Which of the following is an advantage to ectothermy versus endothermy?
Ectothermic animals can inhabit a wider range of habitats.Ectothermic animals require less food.Ectothermic animals can live in the water and endothermic animals cannot.Ectothermic animals can... more
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Biology

12/16/19

99% of extant animal species are
Bilaterally symmetric.Triploblastic.Coelomates.Penguins.
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Biology

12/16/19

A developmental transformation that often involves a major change in body plan, and turns a larva into a juvenile that resembles an adult but is not yet sexually mature, is known as
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Biology

12/16/19

In plants, the major advantage to sexual reproduction versus asexual reproduction is that it results in
Genetic variation, reduced competition between parent and offspring, ability for offspring to remain dormant until conditions are right, stable populations with predictable genotypes, a rapid... more
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Biology

12/16/19

In plants, the major advantage to sexual reproduction versus asexual reproduction is that it results in
Genetic variation.Reduced competition between parent and offspring.Ability for offspring to remain dormant until conditions are right.Stable populations with predictable genotypes.a rapid... more
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Biology

12/16/19

Approximately 300-350 million years ago, seedless vascular plants began growing tall, increasing the global rates of photosynthesis. This caused
A decrease in the levels of atmospheric oxygenAn increase in the levels of atmospheric oxygenA decrease in the levels of atmospheric carbon dioxideAn increase in the levels of atmospheric carbon... more
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Biology

12/13/19

can i get so me help
When people use plastic combs on their hair, the combs become negatively charged. Which statements about this situation are true? The comb loses electrons. The comb gains electrons. The hair loses... more
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Biology Physiology

12/13/19

When we drink sea water, what would happen in urine formation and how is the change associate with ADH?
It is often be said that when we drink 1L of sea water, we would end up excrete more than 1L of fluid.However, the text book mentioned that as the plasma osmolality increase, which i believe it... more
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Biology

12/12/19

if there were 10,000 calcium ions inside the cell and 2,000 calcium ions outside the cell in which direction will these ions naturally flow
the choices areA.they flow from outside the cell inB.they flow from inside the cell outC.they flow from the inside of one cell into the next cell D.Calcium ions cant fow in or out of the cell
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Biology Biochemistry

12/12/19

BIOCHEM Questions
which enzyme is regulated by a feedforward mechanism by its own substratePKHexokinasePFKPDHIsocitrate dehydrogenase
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12/12/19

food chains and food webs
what is the difference between food chains and food webs?
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12/12/19

Food chains and food webs
what is the difference between food chains and food webs?
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Biology Genetics

12/12/19

Complete dominance = If a Red (RR) and White flower (rr) were crossbred, resulting in 100% Rr, what phenotype would been seen according to the rules of COMPLETE dominance?
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Biology

12/11/19

Cricket Lab Question
Knowing the overall equation for respiration, what other substances are the crickets producing besides carbon dioxide? (2 or more detailed sentences)
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Biology

12/11/19

The golgi apparatus moving things out of the cell is called what?
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Biology

12/10/19

How does ice reduce average global temperature of the planet?
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Biology

12/09/19

Cell biology question please help!
A practical was carried examining the effect of drug A on phagocytosis and exocytosis in tetrahymena, following the same protocol you used. The results are shown below. Treatment Time point... more
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12/08/19

MC Questions BioChem

Hello, any help is appreciated, A botanist has discovered that the buds of a species of flower have an intensecitrus flavor, but act as a deadly poison when consumed by humans. Whichbiochemical... more
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12/06/19

biochem amino acids question

which of the following tripeptides is most hydrophobic: a) gly-ser-therb) gly - val - alac)phe-val-isod)arg-lys-methe)ser-iso-leuI am leaning more towards B but I want to know the correct answer... more
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Biology

12/06/19

A gold and silver atom wil have a different number of protons in their nuclei?
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Biology

12/06/19

How is the cell cycle important to some unicellular organisms?
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