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human tissue cells seen to fit together like pieces of a jigsaw puzzle. How is this arrangement of cells helpful to an organism?
2 answers
asked by
vcb
583 views
if you were given a slide containing living cells of an unknown organism, how would you identify the cells as either plant or
2 answers
asked by
ang
1,053 views
selectively permeable structure surrounding all cells (2 words) what is it ?
1 answer
asked by
alha
464 views
Which is NOT a human benefit of bacteria?
combat viral infections clean the environment make food fix nitrogen thanks
1 answer
asked by
jessie
340 views
Why do enzymatic reactions proceed slowly at 0°C?
1 answer
asked by
Cyn
397 views
Which techinque would be used to look at distribution of protiens on the surface of a bacterial cell wall: Light Microscopy (LM)
1 answer
asked by
Anonymous
367 views
the systemtic system of the heart sends oxygenated blood and nutrients to all body cells.
If the questions were does it send
2 answers
asked by
jb
734 views
how do you think the development of vaccines for more than 20 communicable diseases has affected the average human life span in
1 answer
asked by
melita
370 views
Q:My grandmother made kool-aid with 120 g of sugar (Sucrose) per liter. Assuming that the liqiud portion is water (1g/ml)- What
1 answer
asked by
angad
453 views
Q:My grandmother made kool-aid with 120 g of sugar (Sucrose) per liter. Assuming that the liqiud portion is water (1g/ml)- What
1 answer
asked by
angad
458 views
is hydrogenated margarine a trans fat?
is butter a saturated fat?
1 answer
asked by
lena
419 views
what is the adaptive value of having the organ of gas exchange - in this case, the alveolus - inside the body?
1 answer
asked by
adele
394 views
if antibiotics seem effective against a human illness, then this illness is probably caused by
4 answers
asked by
Anonymous
554 views
Explain the roles of helicase and polymerase in DNA replication.
1 answer
asked by
Anonymous
343 views
Why do scientists use the same enzyme to remove the insulin AND cut the plasmid open?
1 answer
asked by
Anonymous
614 views
Manjula is hospitalized for cardiac problems. Somehow, medical orders are mixed up and he is given a K+-enhanced IV solution
2 answers
asked by
qin
509 views
what affect would a very short generation time, such as that of bacteria, have on speciation?
1 answer
asked by
tara
363 views
A typical adult body contains 55 \% water. If a person has a mass of 70.0 kg, how many pounds of water does she have in her
2 answers
asked by
andy
536 views
Does the rate of respiration change (i.e. the rate of expansion) when one puts more oil in a dough?
Would respiration occur
1 answer
asked by
Jazz
397 views
what is behaviral isolation
1 answer
asked by
john
257 views
o What are some of the benefits of squeezing so much data into virtually every cell in the body?
o Why did humans not evolve with
1 answer
asked by
Anonymous
502 views
What are the four basic levels of ecological study, and what is the focus of inquiry at each of these levels?
I don't know what
1 answer
asked by
Jason
468 views
wat is a palisade cell?
2 answers
asked by
Anonymous
991 views
Are all hairs on body the same structurally? explain. help please
3 answers
asked by
marie
331 views
what is nonfermentative bacteria?
1 answer
asked by
Elawabeh
307 views
How does polyandry affect fitness in bluethroats and pseudoscorpions? How does
monogamy affect fitness in California mouse and
1 answer
asked by
Anonymous
420 views
how does the survival of males after production of young affect the optimal sex ratio? what are the assumptions of this theory?
3 answers
asked by
Anonymous
448 views
what is the formula for the optimal sex ratio in a hamiltonian population? What are some real organisms that show this
1 answer
asked by
Anonymous
382 views
what is an example of a naturally fragmented habitat, and a habitat that has been fragmented by human land use?
1 answer
asked by
Allie
334 views
any thing helps
below write the formula which shows the sequence of events that results in the production of a new protein
1 answer
asked by
Anonymous
478 views
Artificial sweeteners, colorants, oils, and medications are manufactured after they are accepted by the U.S. FDA. In order to
1 answer
asked by
Anonymous
441 views
what is the edge effect? (as part of group living)
1 answer
asked by
Allie
247 views
what is prey flushing?
1 answer
asked by
Allie
278 views
what is the sociobiology controbersy?
1 answer
asked by
Allie
214 views
What is the grandmother effect in humans? what is the grandfather effect?
1 answer
asked by
Allie
348 views
according to Stephens, when are learning behaviors expected to evolve?
1 answer
asked by
Allie
653 views
What are atoms composed of? What is the significance of atomic number and mass number?
1 answer
asked by
luly
359 views
What is the difference between an atom and an element? What are atoms composed of? What is the significance of atomic number and
1 answer
asked by
Anonymous
311 views
Discuss the impact of mutation on somatic cells versus germ cells. Which kind of mutation affects the individual and which kind
1 answer
asked by
Anonymous
438 views
outlining how disorders such as Trisomy 21 occur.
1 answer
asked by
Anonymous
330 views
Is a cell containing replicated chromosomes haploid,diploid, or neither?Why?
2 answers
asked by
Anonymous
503 views
Discuss how the external environment of an organism can affect gene function.
1 answer
asked by
tiffany
479 views
Discuss three types of fossils and how they are formed.
1 answer
asked by
tiffany
729 views
what are the two structural components of a chromosome
1 answer
asked by
mary
282 views
You have a sample of NaCl that contains 100 mg/ml NaCl. You are trying to perform an reaction that requires 10ml of 20 mg/ml.
1 answer
asked by
mina
1,128 views
Supercoiling of DNA can occur (choose all that apply):
A. when double stranded DNA is overwound B. when double stranded DNA is
1 answer
asked by
Yoo
980 views
Supercoiling of DNA can occur (choose all that apply):
A. when double stranded DNA is overwound B. when double stranded DNA is
1 answer
asked by
Yoo
432 views
this type of muscle is what the heart is made of
1 answer
asked by
Anonymous
264 views
How do organs get the nutrients from blood?
1 answer
asked by
tony
696 views
What is an IPSP and how is it produced??
1 answer
asked by
Lia
390 views
Explain how genetic diversity in plants and animals supports long-term viability.
2 answers
asked by
mark
502 views
explain what will happen to a sugar cube when it is placed in a sugar glass of water.
5 answers
asked by
elin
591 views
explain what will happen to a sugar cube when it is placed in a glass of water.
3 answers
asked by
elin
431 views
would these substances pass easily through the pores of dialysis tubing? and EXPLAIN why.
1-glucose 2-na^+ 3-insulin 4-estrogen
1 answer
asked by
pop
321 views
would these substances pass easily through the pores of dialysis tubing? and EXPLAIN why.
1-glucose 2-na^+ 3-insulin 4-estrogen
1 answer
asked by
susan
355 views
Find a media piece—article, video, presentation, song, or other—related to the scientific method, creating hypotheses, or
4 answers
asked by
Anonymous
621 views
i need to compare structure and fuction of diffrent cells types? can i get a helpful link for this?
1 answer
asked by
Anonymous
282 views
Describe a situation or experience in which you used (knowingly or not) the scientific method.
1 answer
asked by
Anonymous
290 views
what is the structure of DNA?
1 answer
asked by
amy
275 views
Name some plants (or even animal products) that are said to have properties that are beneficial to humans. Describe how you
1 answer
asked by
Anonymous
373 views
the biome with the fewest seasonal changes is the
2 answers
asked by
toba
564 views
If the frequency of one allele in a population is 0.7, what is the frequency of the alternate allele?
A) 0.30 B) 0.21 C) 0.42 D)
2 answers
asked by
Anonymous
715 views
how many grams of sucrose would you need to prepare 10 mK of ,o1M solution of sucrose(FW+342g/mole)? show your work
1 answer
asked by
milly
465 views
TRUE OR FALSE
1. One of two identical"sister" parts of a copied chromosome is called a chromatid 2.The final phase of mitosis in
4 answers
asked by
christina(help plz)
1,813 views
Which of the following is NOT true of amoebas?
a. They reproduce by binary fusion. b. They move by pseudopodia. c. They have a
3 answers
asked by
BOO!
668 views
Alternation of generations is defined as the switching back and forth between the production of:
a. cells by mitosis and meiosis
1 answer
asked by
BOO!
722 views
What is the term used when an amino acid is used for four or more codons?
1 answer
asked by
Nicole
311 views
what will happen to a red blood cell place in a solution of 99.3% water and 0.7% salt?
2 answers
asked by
alex
957 views
what is a mechanism for how EB1 can mediate the extension of ER cisternae along microtubules?
1 answer
asked by
Allie
238 views
how does the explosive polymerization of G-actin propels L. monocytogenes through the cytoplasm?
1 answer
asked by
Allie
262 views
what is the cisternal maturation hypothesis for Golgi apparatus function?
1 answer
asked by
Allie
334 views
How do we determine that prophase is the longest stage of mitosis?
1 answer
asked by
Nicole
374 views
if something is lipid solube?
why might that be a good thing? for example cholorphyll and beta carotene are both lipid soluble
1 answer
asked by
justwondering
339 views
Homozygous dominant for BRCA1-what is the genotype? (using the letter b)
1 answer
asked by
Nicole
361 views
Hi does anyone know where the following lead to/from renal artery and vein hepatic artery and vein umbilical artery and vein
1 answer
asked by
tim
354 views
Hi does anyone know where the following lead to/from renal artery and vein hepatic artery and vein umbilical artery and vein
1 answer
asked by
tim
367 views
How is it possible for an overnourished individual to be malnourished?
1 answer
asked by
tim
311 views
What are introns and exons? also what is a peptidoglycan( i hope i spelled that right)
4 answers
asked by
martha
370 views
are blood pressures have differences between genders?explain your answer.
-from what i know, women have lower risk to get high
3 answers
asked by
Yuni
548 views
I did a pig dissection , but i am not to sure about these questions, any help would be great !
1. The lungs of a fetal pig serve
1 answer
asked by
Annie
468 views
The fetal pig does not have functional lungs, since the lungs are not being used is there any need to transport blood tot he
2 answers
asked by
Annie
696 views
for a fetal pig why is it difficult to find the urinary bladder by describing the specific location ?
what structures in the
1 answer
asked by
Annie
409 views
name three major blood vessels that branch off the aortic arch and the body part the blood is carried to
name two major artries
3 answers
asked by
Annie
541 views
what is Ssarcina Lutea's margin shape on agar?
1 answer
asked by
rebekah
266 views
why does 10 % Sodium Chloride Solution affect and kill Sarcina lutea but not Serratia marcescens
Escherchia coli Bacillus
1 answer
asked by
rebekah
832 views
What does this sentence mean?
"We propose that acetate produced by protective biofidobacterium improves intestinal defence
1 answer
asked by
Rebekah
383 views
How does the surface area-to-volume ratio of
a 1-mm cube compare to the surface area-to- volume ratio of a 3-mm cube? 1. The
1 answer
asked by
anmol
941 views
How does active transport differ from passive
transport? 1. Molecules move down a concentration gradient in active transport. 2.
1 answer
asked by
anmol
725 views
Many studies have shown that extinction is a natural process that occurred long before humans ever evolved. Explain the
2 answers
asked by
Anonymous
492 views
In 3 or more sentences describe the structure of a water molecule and its unique properties
1 answer
asked by
mary
411 views
how does the small intestine complete the digestion of lipids?
1 answer
asked by
anmol
339 views
Would you agree that it is valuable for a nation to have a citizenry that is reasonably well versed in science? Give reasons for
1 answer
asked by
Dave
325 views
how is the thalamus the sensor regulator for the brain (what are the steps that happen when it receives a stimuli?
1 answer
asked by
Matt
285 views
Orange juice is often touted by nutritionists as being an excellent antioxidant. Within an essay response, discuss the following
1 answer
asked by
Dave
751 views
Would you agree that it is valuable for a nation to have a citizenry that is reasonably well versed in science? Give reasons for
1 answer
asked by
Dave
388 views
what do macrophages have to do with coplement proteins
1 answer
asked by
Matt
304 views
Relate how the arrangement of electrons determines an element’s reactivity
1 answer
asked by
Bre
932 views
Explain why it is more likely for mistakes in oogenesis to be inherited by the offspring than mistakes in spermatogenesis
2 answers
asked by
shan
634 views
Regulation of an enzyme's activity occurs
2 answers
asked by
Anonymous
642 views
how is the rate of enzyme activity affected by increasing the concentration of the substate/
1 answer
asked by
neal
400 views
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