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Finger [1]
3 years ago
14

A protein channel is the transportation protien that

Biology
2 answers:
Shtirlitz [24]3 years ago
4 0
That molecule can only cross the cell membrane if the particular carrier protein is available. There are two types of transport that use channel proteins. The first type does not require energy to move the substance across the cell membrane. This is called facilitated diffusion.
Cerrena [4.2K]3 years ago
3 0
Whats the answers needing to be provided?

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4. Which of the following conclusions about science is best supported by the text?
hjlf

Answer:

4.) C

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7 0
2 years ago
When too walk your dog you are using energy from the sunlight to power this activity. explain
GrogVix [38]
<h2>When too walk your dog you are using energy from the sunlight to power this activity</h2>

Explanation:

The ultimate source of energy in the ecosystem is the sun. When we take our dog for a walk, we are utilizing energy stored in our body that we obtained food. We must have obtained that from either plants or animals. The animal in turn must have obtained its food from plant. Plants are the organisms in the food chain who can convert the energy from the sun into the chemical energy. So, we can say that when we walk our dog we use energy from the sunlight to power this activity.  

5 0
3 years ago
Please Help Me ASAP!!
Zigmanuir [339]

Answer:

Evidence of metamorphism can be indicated by <u>flat, horizontal</u> layers within the rock.

Explanation:

Metamorphic rocks refer to rocks that are modified with heat or pressure, which change their physical and chemical properties. The main reason behind this modification is the rearrangement of the mineral crystals, which occurs due to their response to the previously-mentioned properties of heat and pressure.

There could be different types of evidence of metamorphism. However, the main evidence can be indicated by the presence of <u>flat, horizontal</u> layers within the rock, also known as foliation, a process that occurs when the pressure squeezes the minerals, leading to a flat, horizontal layer. Then, scientists could analyze the composition of these layers to identify minerals or even fossils within it.

6 0
3 years ago
All medicare part b enrollees are covered for which vaccines?
Gennadij [26K]

The medicare part B involves coverage for immunization, Seasonal flu, seasonal H1N1 flu, pneumococcal vaccine and Hepatitis B.

<u>Explanation:</u>

Medicare is a popular insurance coverage for elderly Americans that operates in 4 different modules the part A covers for inpatient expenses , part B covers outpatient expenses, the part C covers alternate medications and the part D covers medicine purchase for part C. All the coverage consists only commercially available vaccines. So the above given vaccines covers in the section of part B of Medicare.

3 0
3 years ago
Pleaseeeee helpppp
Alex73 [517]
The answer is C Good luck
6 0
2 years ago
Read 2 more answers
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