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V125BC [204]
2 years ago
9

What forms of nitrogen and carbon can be used by plants?.

Biology
1 answer:
AlladinOne [14]2 years ago
6 0

Answer:

Nitrate is the form of nitrogen most used by plants for growth and development. Nitrate is the form that can most easily be lost to groundwater. Ammonium taken in by plants is used directly in proteins. This form is not lost as easily from the soil

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Review Questions
mezya [45]

Answer:

6==. During spermatogenesis, four sperm result from each primary spermatocyte, which divides into two haploid secondary spermatocytes; these cells will go through a second meiotic division to produce four spermatids

7 0
3 years ago
If a physicist performs an experiment, who would likely try to replicate it?
Alenkasestr [34]

Answer:

The physicist himself

Explanation:

Replication in an experiment means to repeat an experiment as many times as possible using the same conditions. This is done to minimize error and ascertain the reliability of the experimental outcome.

An experimenter is responsible for repeating his/her experiments. According to this question, a physicist performs an experiment. The physicist himself should replicate his experiment.

7 0
2 years ago
Which of these statements is false?
denis23 [38]
A jdjdjsj skskskssjsjsjsjJjJ
6 0
3 years ago
Which of the following is responsible for enforcing the Endangered Species Act?
frosja888 [35]
Should be d, because the us fish and wildlife service specializes in habitats
4 0
3 years ago
Living things use many strategies for producing offspring, but most strategies fall neatly into the categories of either sexual
djyliett [7]

Answer:

The correct answer is C

Explanation:

In asexual reproduction method, the offspring generated is identical genetically to the parents. But this is not the case in sexual reproduction. The reason being that the gametes or sex cells produced has only one set of chromosomes and are therefore haploid after the process of meiosis. Meiosis is the process when the offspring formed has chromosomes from two parents and is not identical to the parent. Only certain characteristics are inherited by the offspring from both the parents and offspring has different set of characteristics.  

There is a process of assortment taking place inside the cell when the double set of chromosomes becomes one set in a gamete. Out of the pair of chromosomes, there is a random selection. Due to this random assortment, there is a genetic variation between the gametes as the gene alleles on the chromosome are not the same. This principle is said to be the Mendel’s first law of segregation.  

Another process of combining chromosomes is the crossing over during the meiosis stage which results in variety of chromosomes. We can say that recombination is possible.  

Hence, we can note that during assortment and crossing over, there is no chance for two offspring to be identical to the same mother or father with the exception of identical twins. In the case of identical twins, the genetically identical characteristics develops from same fertilized egg.  

From the above process, the structure of gene gets changed creating a variant that can get transmitted to next generation. The change is caused by altering the single base units of DNA or rearranging larger section of genes.  

5 0
3 years ago
Read 2 more answers
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