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2 years ago

Which of the following correctly identifies the decomposers in the forest food web shown below? (1 point)

Biology

2 answers:

butalik [34]2 years ago

6 0

Answer:

Explanation:

bc the forest food wed starts out at the biggest to the smallest in that list. looking at the human food chain it would be us last bc we are the biggest predators

REY [17]2 years ago

4 0

The answer would be D. Shrubs, fungi, insects, and bacteria. Shrubs and fungi are definitely main decomposers and insects and bacteria do consume dead matter and waste so they also count as decomposers.

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A gel electrophoresis migration pattern displaying polymerase chain reaction (PCR) products shows four strong bands. The lengths

dangina [55]

Answer:

D) The encoded protein contains four repeats of a specific sequence.

Explanation:

The polymerase chain reaction is a technique used to replicate or amplify the amount of DNA sample.

The technique employs running the DNA samples on the gel through which the DNA samples run based on their sizes.

The large-sized DNA fragment runs to a less distance whereas the small-sized DNA run to a large distance.

In the given question, four sizes of DNA bands are formed in the ratio of 1:2:3:4 which shows that the proteins encoded by this DNA have four repeats of a specific sequence of the template strand. This was confirmed when the largest band sample was again used as a sample of PCR and the PCR resulted in the four bands in similar 1:2:3:4.

Thus, Option-D is the correct answer.

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2 years ago

Evaluate and discuss the negative impact of youth risk behaviour on yourself refer to the 4 spheres of well being like social ,

Anna [14]

The negative impact of youth risk behavior considers the risks to youth health and the protective behaviors of health including smoking, drinking, drug use, diet and physical activity. Depending upon one's social circumstance including the location of upbringing and access to education, the risk to health would increase, this could be affected by economic factors, with negative health impact increasing with the less access to resources. This directly impacts on the physical and mental well-being of an individual, with bad diet and lack of physical activity limiting a person's potential in the socioeconomic sphere and confidence and health.

3 0

2 years ago

Read 2 more answers

Antibodies are composed of two types of peptides, heavy chains and light chains. One of the major classes of antibody molecules

timurjin [86]

Answer and Explanation:

a. form the antigen-binding site ⇒ both chains

The antigen-binding site is formed by one hypervariable region of the light chain (VL) and one hypervariable region of the heavy chain (VH). So, both type of chains contributes to antigen recognition.

b. contain multiple variable domains ⇒ none

Both chains - light and heavy - contain only one variable domain (VL and VH).

c. are found in the Fab fragment ⇒ both chains

The Fab fragment is composed of portions of both light and heavy chains: each portion contains one variable domain and one constant domain. The Fab fragment binds specifically the antigen.

d. are found in the FC fragment ⇒ heavy chains

The Fc region is composed of portions of heavy chains (CH² and CH³), so it contains constant domains.

e. contain only one constant domain ⇒ light chains

Each light chain contains one variable domain (VL) and one constant domain (CL).

f. contain multiple constant domains ⇒ heavy chains

Each heavy chain contains three constant domains: CH¹, CH² and CH³.

g. contain only one variable domain ⇒ both chains

Both light and heavy chains contain one variable domain. The difference is given by the number of constant domains: light chains have 1 constant domain while heavy chains have 3 constant domains.

8 0

2 years ago

When a mass of hydrogen has enough density, it begins to fuse the hydrogen atoms together. This fusion process creates large amo

Yuri [45]

Answer:

star

Explanation:

a star forms with hydrogen

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2 years ago

Dr. Trout has noticed that the salmon in his fish hatchery seem to enjoy listening to the radio when he has it on in the lab. Th

tekilochka [14]

The answer is B because the independent variable would be the hours of music playing and the dependent, which means the effect of the independent variable, would be weight or mass of the fish. In his observation he sees that the fish grow larger so that would be your dependent variable.

3 0

2 years ago

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