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nydimaria [60]
3 years ago
11

Which is a tertiary consumer in this food web?

Biology
2 answers:
Vlad [161]3 years ago
5 0

Answer:

The Mountain Lion

Explanation:

In a food web the arrows indicate energy being transferred to the animal it's pointing to from the animal it's pointing away from. In other words the arrow points at the animal that ate the one it is pointing away from. Since the Mountain Lion has the most arrows pointing to it, it's the highest predator in this food web. Since it is at the top it is a tertiary consumer.

IrinaK [193]3 years ago
4 0

Answer:

Look below.

Explanation:

A tertiary consumer is an animal that eat primary consumers and secondary consumers. From this knowledge we can conclude that the tertiary consumer is the mountain lion since nothing consumes the animal and it is on the top of the food web for consuming the most energy.

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Answer:

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Explanation:

6 0
3 years ago
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(a) Identify the most likely mode of transport across the membrane for substance L. Explain how information provided helps deter
Viefleur [7K]

Active transport occurs against the electrochemical gradient. It needs energy to move molecules from the lower concentration side to the higher concentration side. <em>The mode of transport is </em><u><em>active transport. </em></u>

-------------------------------------------------

There are three main different types of transport across the membrane

  • Simple diffusion ⇒ <em>Does not need energy to occur</em>
  • Facilitated transport ⇒ <em>Does not need energy to occur</em>
  • Active transport ⇒ <em>Needs </em><em>energy </em><em>to occur</em>

Active transport is the transport of molecules that move <em>against the </em><em>electrochemical gradient</em>, so it does <em>need energy </em><em>to happen</em>.

Molecules move from the lower concentration side to the higher concentration side of the membrane.

Carrier proteins are in charge of active transport. The needed energy might proceed from the ATP molecules or the membrane's electric potential.

In the exposed example, a scientist wants to determine how substance L enters a cells in a culture.

  • The cells maintain a <u>120 mM </u><u>intracellular concentration</u><u> </u>of substance L.
  • Varying external concentrations of substance L (10 to 100 mM) in culture medium (Table 1).

Table 1. Rate of entry of substance L into mammalian cells in culture

<em><u>External concentration of substance(mM)      Rate of entry of substance L </u></em>

                     10                                                                     5%

                     20                                                                    25%

                     30                                                                    45%

                     40                                                                    65%

                     50                                                                     80%

                     60                                                                     90%

                     70                                                                      95%

                      80                                                                    100%

                      90                                                                    100%

                      100                                                                   100%

<em>Now, we need to identify the most likely </em><em>mode of transport </em><em>across the </em><em>membrane </em><em>for substance L, and explain how information provided helps determine the most likely mode of transport.</em>

We know that the intracellular concentration is 120mM.

As we can see, this concentration exceeds all of the culture media concentrations. Yet, the substance keep moving into the cell.

As the concentration inside the cell is always higher than the concentration outside, we can assume that this is <u>not passive transport </u>because the molecule transport is going against its concentration gradient.

Hence, the remaining option is <u>active transport.</u> And as said before, we can see it because the substance keeps crossing the membrane toward the cell interior despite its concentration being higher in the interior of the cell than in the exterior.

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Related link: brainly.com/question/19098496?referrer=searchResults

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Some plants have stems called
inna [77]

Answer:

Runners

Explanation:

stems are usually upright and prop up the plant to gather sunlight, however, some stems grow along the ground. These stems are called runners and the plant itself is called a stolon. Runners are involved in asexual reproduction of plants. They have nodes along them which can grow into another plant.

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3 years ago
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When Mr. Valdez thought his 1-year-old daughter had fallen down the stairs, his heartbeat accelerated, his blood pressure rose,
prohojiy [21]

Answer:

Sympathetic Nervous System.

Explanation:

Sympathetic nervous system is one of the parts of Autonomic nervous system and the other part is Parasympathetic nervous system.

As a whole the autonomic nervous system controls the unconscious responses of our body.

The main function of the Sympathetic nervous system is to stimulate the 3F response of the body. Here 3F refers to Fight, Flight and Freeze. Adrenal gland is stimulated by this system which secretes adrenaline. Due to the effect of adrenaline heart neat increases, blood pressure increases, pupils dilate, sweat glands are activated, peristalsis in the gut is inhibited, and kidney secretion increases.

3 0
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