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vampirchik [111]
4 years ago
11

In Kirk's experiment, he keeps a wolf in captivity, offers the wolf four different selections of food each day, and records whic

h food item the wolf selected.
What is one disadvantage of Keisha's investigation?
Biology
1 answer:
Lady bird [3.3K]4 years ago
8 0

The disadvantage of wolf captivation is that it restricts the sample size which prevents to make a conclusion on the species.

Explanation:

To study the behavior of the wolves that are kept in captivation during their feeding times, food enrichment programmes are performed. The feeding sessions were proved to be quite useful in studying the stereotype behavior of the wolf.  

However, this study is experimented on small samples and on restricted environment that doesn’t represent the actual environment of a zoo where wolves are allowed to behave as per their nature.

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the plasma membrane and inside the cell

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3 years ago
Complete the following vocabulary exercise related to the process of translation of mRNA to protein by the ribosome. Match the w
schepotkina [342]

The answers;

1. Termination. Out of the 64 codons, UAG, UAA, and UGA are the stop codons that terminate translation when encountered by the ribosome. These three do not code for any amino acid but rather cause the translation complex to dislocate.


2. Translation. In this process, the ribosome ‘reads’ the codon and brings in a t-RNA with an anticodon to the codon. This tRNA carries a specific amino acid (for that codon) and engages in the P-site of the ribosome. The amino acid is taken from the t-RNA and used to elongate the polypeptide chain being formed. Thereafter the empty t-RNA dislocates.


3. Aminoacyl-tRNA synthetase. When a tRNA brings in an amino acid to the initiation complex, it is dislocated when ‘empty’. Aminoacyl-tRNA synthetase then catalyzes the reattachment of another amino acid through a chemical reaction called esterification. The cognate tRNA then become an aminoacyl-tRNA.


4. tRNA . Every tRNA has an amino acid attached to it. The type of amino acid (out of the 22 amino acids) is determined by the anticodon on the tRNA. There are many codons that are amino acids meaning that there are redundant codons that specify for the same amino acid.


5. Initiation. Initiation begins by the formation of an initiation complex. This complex is comprosed by the two subunits of the ribosome, and the mRNA. The complex becomes compelete when a Met-tRNA (a tRNA with a methionine amino acid) engages the P-site and then translation begins.


7 0
3 years ago
Which of the chains of amino acids corresponds to the nucleotide sequence aauggcuac
maxonik [38]
The sequence AAU GGC UAC is composed of three codons each of which codes for a different amino acid. AAU codes for the amino acid called threonine. GGC codes for the amino acid called glycine UAC codes for the amino acid called tyrosine. So the chain will read  threonine-glycine-tyrosine. There are 64 possible 3 - letter combinations of DNA coding units A, C, G and T. Of these, there are three stop or non- sense codons that do not code for any amino acid, while the remaining 61 code for different amino acids.
4 0
4 years ago
Help !!! I’ll give you brainliest and points !!!!
Aleksandr-060686 [28]

Answer:

The first question is answer A. The question asks for the independent variable, meaning this variable doesn't depend on any other variable. B is the dependent variable because the life span depends on the vitamin.

The second answer is A, the control group. It cannot be the other groups because they aren't real groups. Independent and dependent are variables, not groups.

4 0
4 years ago
Whst is the correct term for an area of rotating current in a ocean​
Kaylis [27]

Answer:

A gyre is a large system of rotating ocean currents.

Together, these larger and more permanent currents make up the systems of currents known as gyres.

Explanation:

3 0
4 years ago
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