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Alika [10]
3 years ago
11

58-year old man is given a glucose tolerance test. In the test, the plasma glucose concentration is increased and glucose reabso

rption and excretion is measured. When the plasma glucose concentration is higher than occurs at transport maximum (T max) the _______.
Biology
1 answer:
Irina18 [472]3 years ago
5 0

Answer:

Answered

Explanation:

58-year old man is given a glucose tolerance test. In the test, the plasma glucose concentration is increased and glucose re absorption and excretion is measured

When the plasma glucose concentration is higher than occurs at transport maximum (T max) the excretion rate of the glucose increases_with increase in plasma glucose concentration.

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How does volcanic activity affect climate? Are these examples of short-term or long-term affects?
musickatia [10]
When a volcano erupts , a mixture of gases and particles is released into the air . The cooling influence of an individual volcano will dominate for the period immediately after the eruption but the warming impact will last much longer.
7 0
3 years ago
Which of the following statements best describes the state of DNA inside of a prokaryotic cell?
alexdok [17]

Answer:

C.

Explanation:

It's a single strand of circular DNA found in the central area of the cell, which is not surrounded by a nuclear membrane.

8 0
3 years ago
A population of wolves predates a population of moose on Isle Royale, Michigan, where there are fewer wolves than moose to start
andrew11 [14]

Complete question:

A population of wolves predates a population of moose on Isle Royale, Michigan, where there are fewer wolves than moose to start. The wolves prey on the moose and eat well, allowing them to have abundant offspring. However, as the wolf population rises, the moose population drops, and over time, the wolf population begins to drop also because of the reduced availability of resources. As the wolf population drops, moose are able to better survive and reproduce, causing the moose population to rise. With this abundance of moose, the wolf population is able to rebound until their population exceeds the moose population’s ability to support the number of wolves. Which population dynamic does this series of oscillations represent?

  1. Delayed density dependence
  2. Delayed density independence
  3. Extinction vortex
  4. Carrying capacity

Answer:

  1. Delayed density dependence

Explanation:

The Delayed density dependence occurs when two species are in interaction (prey-predator or parasite-host), and the dynamic of each population follows the dynamic of the other population. The natality and mortality rates of one species follow the rates of the other species.

<em>Delayed density dependence dynamics regulate populations and allow the occurrence of equilibrium or balance in nature.</em>

<u>Predator-prey scenarios</u>

Assuming that the prey lives in the ideal environment with no predators, it shows an exponential growth rate. Prey can grow, develop, and reproduce, increasing its population size. The more available items, the more predator there will be. The predator population increase in size, and its presence affects the prey populations, leading it to decrease. So there are fewer available items to prey on.    

The prey population also affects the predator population. After the increase in the predator population size, the number of available prey decreases. The predator lives in an ideal environment but depends on the prey density. The more predators there are, the fewer prey there will be left. The predator population decreases exponentially due to the item's lack. The predation rate depends on density as well as natality and mortality rates.

So, to sum up,

  1. prey population increases in size
  2. predator population increases in size
  3. prey population decreases in size
  4. predator population decreases in size

In this particular example, the wolves population follows the moose population and vice-versa. It is not simultaneous. It happens with a delay.

<em>Moose influences the wolf population because they are their source of food. The more moose, the more wolves there are. The fewer moose, the fewer wolves there are. </em>

This is a density-dependent dynamic because both populations are affected when they reach a high value.

6 0
3 years ago
Which statement best defines the relationship among a gene, a chromosome, and DNA?
timofeeve [1]

Answer:

A chromosome is tightly compacted DNA, and a gene is a section of DNA that is used to code for certain characteristics.

7 0
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ii. True or False: Estimates of body composition obtained with dual-energy x-ray absorptiometry need to be interpreted with part
Bogdan [553]

Answer: True

 

Explanation:

The dual energy x-ray absorptimetry is a technique that is used for measuring the bone mineral density. This technique utilizes the two X-ray beams with different levels of energy. The soft tissues are subtracted in this procedure and the beam is absorbed by the bone. This technique is useful for diagnosis of osteoporosis, to check and diagnose the infected, fractured and healing bones.

Fluid retention is a condition in which excess fluid due to capillary leakage or any other reason fills up inside the circulatory system, body tissues and cavities. The following symptoms will appear:

Discolored skin, aches and tenderness in the limbs, stiffness in joints and weight gain.

The retained excess fluid may react with the X-ray beam hence, will interfere in the process of diagnosis. Thus caution should be taken for such individuals.

7 0
3 years ago
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