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Triss [41]
3 years ago
5

Nutrients enter a cell ______ the concentration gradient by the process of _______.

Biology
2 answers:
ziro4ka [17]3 years ago
5 0
Nutrients enter a cell up the concentration gradient by the process of active transport.
Klio2033 [76]3 years ago
5 0
Nutrients enter a cell with the concentration gradient by the process of diffusion.
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(b) Identify the dependent variable in the experiments. Identify a control group missing from the second experiment. Justify the
hammer [34]

Hello. You have not submitted the experiments to which this question refers, which makes it impossible for it to be answered. However, I will try to help you in the best possible way.

A dependent variable is one that is influenced by an element, in order to present a result, that is, it is a variable that does not establish itself, being dependent on another variable to establish itself. An example of a dependent variable can be seen in an experiment that seeks to determine the differences in growth rates of bean plants that were fertilized with different organic fertilizers. As you can see, this is an experiment where the different organic fertilizers influence differences in the growth rate of bean plants. Thus, the growth of these plants depends on the fertilizer, this growth being the variable dependent on the experiment.

A control group, in turn, is an element of the experiment that does not receive the element that is being tested in the same experiment. The control group is important, because it allows the researcher to see the results of a system where the tested element does not exist, thus being able to determine the real differences that the tested element is capable of causing. Using the same example presented in the paragraph above, we can see that the different organic fertilizers are the elements tested in the experiment. These fertilizers will be applied to the plants, however it is important that at least one of these plants does not receive any fertilizer, so that the difference between a system with fertilizer and a system without fertilizer can be evaluated. This plant that received no fertilizer is the control group.

4 0
2 years ago
What is the difference between a molecule and a diagram of a molecule ?
kakasveta [241]

Answer: The molecule itself is the actual thing present.

while the diagram explains what makes up a molecule or what it looks like structurally

Explanation:

5 0
3 years ago
I’m 34 years old. My mother and father are citizens of Russia. I have been a permanent resident in the U.S. for 3 years
vovangra [49]

Answer:

That's pretty cool

Explanation:

6 0
2 years ago
Was the allele for white fur ever fully eliminated from the gene pool of the population? Explain why you think the allele would
Alina [70]

Answer:

Explanation:

According to hardy-weinberg principle that says in a large random mating population in the absence of migration,mutation and selection the gene and genotype frequency remains constant.

In a large random mating population the frequency of an Allele for white fur will remains in the population when there is no migration,mutation, or selection but the organism mate at random leading to production of offspring with similar Allele with there parents but when the population is small and random mating occur some allele will be selected against and lost in the population due to flunctuation in the population.

6 0
3 years ago
(a) If a particular gene is located on the Z chromosome of this lizard species, describe why a lizard with a ZW genotype has a g
Airida [17]

Answer:

If there is no dominant allele for a trait present on a homologous chromosome to mask the recessive allele, the recessive phenotype will be expressed. In this case, the gene is located on the Z chromosome. In an individual with a ZW genotype (female) there is no homologous Z partner, meaning whatever allele is present on the solitary Z chromosome will be expressed.

Explanation:

4 0
3 years ago
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