All categories

3 years ago

Which of the following is an example of a disease that is properly matched with one of its environmental risk factors?

1 answer:

3 0

<span>The answer is Anemia—iron-deficient diet. Anemia is a result due to the lack of iron which caused the decrease of the number of red blood cells in the body. </span> If you do not have enough iron then it will result to fewer and smaller red blood cells in your body. As we all know, hemoglobin is used to carry oxygen, so when you lack hemoglobin,there is a lack of oxygen supplying for your body also.

You might be interested in

In a pond, the primary producer is a green algae, the primary consumer is the crustacean, the secondary consumer is the bluegill

densk [106]

Explanation: The green algae population will increase because if the crustaceans are killed, there is no consumption of algae hence resulting in increased levels of algae.

After that the blue gill fish that is the consumer of crustaceans will also be affected, their numbers will start to reduce with time and they might die off unless they move to another habitat so the option "D" is wrong

5 0

3 years ago

What do biotechnologists use to cut DNA molecules at specific sequences? transformation DNA polymerase DNA ligase restriction en

Marysya12 [62]

Answer:

Restriction endonuclease

Explanation:

It cut the DNA at specific sequence and it is very useful in biotechnology

4 0

3 years ago

What are the three types of symbiotic relationships?

Tems11 [23]

Answer:

The three types of symbiotic relationship are: mutualism, commensalism, and parasitism.

Example: 1.Mutualism: Pistol shrimps and gobies.

2. Commensalism: Sharks and Remora Fish.

3. Parasitism:. Tapeworms, fleas, and barnacles.

4 0

3 years ago

The trp and lac operons are regulated in various ways. How do bacteria regulate transcription of these operons? Sort the stateme

OLEGan [10]

Answer:

Operon is not transcribed:

-lac operon: lactose absent

-trp operon: tryptophan present

Operon is transcribed, but not sped up through positive control:

-lac operon: lactose and glucose present

-trp operon: tryptophan absent

Operon is transcribed quickly through positive control:

-lac operon: lactose present, glucose not

Explanation:

The trp operon is controlled via negative control only.

Presence of tryptophan will inhibit the transcription of the operon genes

The lac operon is controlled via negative control and positive control.

●Negative control:

--Transcription is turned off due to

active Repressor protein and absence of lactose

--Transcription is turned on due to

Inactive Repressor protein and presence of lactose

●Positive control:

--Transcription rate is higher due to absence of transcription and presence of lactose as a regulatory protein (CAP) adhere to the lac operon promoter

8 0

3 years ago

What types of sensors are present within the muscle to identify how much force is generated?

xxTIMURxx [149]

The proprioceptors

The proprioceptors such as muscle spindle and golgi tendon organ are sensors located in the limbs. The proprioceptors give information about muscle length, muscle tension and joint angle which is coordinated to provide information about the limb’s position in space.

3 0

3 years ago

Read 2 more answers