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tino4ka555 [31]
3 years ago
9

Please help!!

Biology
2 answers:
DanielleElmas [232]3 years ago
8 0
D.) because the plastic beads are bigger than the holes in the sieve but the sand and salt are not
igor_vitrenko [27]3 years ago
3 0

Answer:

B

Explanation:

you can just take a magnet and all the iron filings will come out of the water. happy cheating!!!>.<

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Nearly all the mass of plants comes from well fertilized soil.<br> True or False?
babunello [35]
That is false because plants grow everywhere and I doubt anyone fertilized the Amazon rainforest


anyway ITS FALSE bro
5 0
3 years ago
How did the frequency of stimulation affect the amount of force generated by the isolated skeletal muscle when the frequency of
Alexxandr [17]

Answer:

When the frequency of stimulation of a muscle increases -without it having the opportunity to relax- a process called summation (addition) occurs, promoting an increase in the generation of force in the isolated skeletal muscle.

Explanation:

Summation is a phenomenon that occurs as a consequence of the arrival of successive stimuli that produce the contraction of the skeletal muscle before it achieves its partial or total relaxation, between subsequent stimuli.

<em>When the summation occurs in the muscle, the force generated on it increases its magnitude proportionally to the number of stimuli received, maintaining the muscle contraction in time</em>.

Tetany is the prolonged contraction of a muscle in an abnormal way, by the summation of stimuli received , as some bacterial toxins can produce. The summation can be temporary -when multiple stimuli reach the muscle in a determined time- or spatial, when the amount of stimuli activates a greater amount of motor units.

Learn more:

Spatial summation in a post synaptic neuron brainly.com/question/9632682

3 0
4 years ago
PLEASE HELP!!!
Tomtit [17]
Hi everyone I was thinking would love
3 0
2 years ago
At what point is the fetus typically able to survive outside of the mother's body?
Deffense [45]
The answer is D
Hope this help
6 0
3 years ago
Why would it be important to know the possible genotypic and phenotypic ratios of different genetic crosses?
OleMash [197]
It’s important to know the possible genotypic and phenotypic ratios of different genetic crosses because the the phenotype shows what the offspring will physically look like what the genotype is what genes the offspring carries. phenotype doesn’t always show what alleles the offspring carries because if the offspring is heterozygous for the gene only the dominant allele shows and the recessive allele won’t be visible. the genotype can see what alleles the offspring carries, both dominant and recessive. knowing the genotype helps to know what alleles are passed on. if one of the parents have a genetic mutation that is passed on, the phenotype helps see what ration of offsprings will have the mutation visible and the genotype will help see what ratio of offsprings will pass on the allele for the mutation

probably isn’t useful. my brain is currently burnt
6 0
3 years ago
Read 2 more answers
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