Coastal areas near a cold-water current are _______ and ____

The ________ duct carries tears in the eye to the nose.

iris [78.8K]

Hi this is called the nasolacrimal duct that carries tears in the eye to the nose.
Hope this helped please name this brainiest thanks.

5 0

4 years ago

What bodies of water may be cold

AlexFokin [52]

Answer:

Flowing rivers and streams,Spring-fed bodies of water,Most open water except in tropical regions,

4 0

3 years ago

Read 2 more answers

(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. The mode of transport is active transport. 

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

There are three main different types of transport across the membrane

Simple diffusion ⇒ Does not need energy to occur
Facilitated transport ⇒ Does not need energy to occur
Active transport ⇒ Needs energy to occur

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

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 120 mM intracellular concentration 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

External concentration of substance(mM) Rate of entry of substance L

10 5%

20 25%

30 45%

40 65%

50 80%

60 90%

70 95%

80 100%

90 100%

100 100%

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

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 not passive transport because the molecule transport is going against its concentration gradient.

Hence, the remaining option is active transport. 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.

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

6 0

3 years ago

Which factor will decrease photosynthesis

Ksju [112]

Without enough light, a plant cannot photosynthesize very quickly, even if there is plenty of water and carbon dioxide.

3 0

3 years ago

Read 2 more answers

How would a houseplant respond to sunlight that comes from one direction?

ivann1987 [24]

The correct answer would Be C because Most plants would Bend their stems to the sun

3 0

3 years ago

Read 2 more answers

Coastal areas near a cold-water current are _______ and _____ than regions farther inland.

Coastal areas near a cold-water current are ___ and _ than regions farther inland.