1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Finger [1]
4 years ago
14

A protein channel is the transportation protien that

Biology
2 answers:
Shtirlitz [24]4 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]4 years ago
3 0
Whats the answers needing to be provided?

You might be interested in
In which of the following ways are the concepts of gradualism and punctuated equilibrium in evolution similar?
faust18 [17]
<span>B. Both state that evolution has been going on throughout Earth's history. </span>
8 0
3 years ago
Read 2 more answers
Which of the following is the best example of homeostasis in the human body?
sesenic [268]
Homeostasis refer to the metabolic balance being maintained by several processes. It may include having a stable internal physiologic condition such as the blood ph or body temperature. Among the options, the best answer would be c. the villi of the small intestine would increase the absorption of nutrients from small intestine to the blood.
8 0
4 years ago
In Kirk's experiment, he keeps a wolf in captivity, offers the wolf four different selections of food each day, and records whic
Lady bird [3.3K]

The disadvantage of wolf captivation is that it restricts the sample size which prevents to make a conclusion on the species.

Explanation:

To study the behavior of the wolves that are kept in captivation during their feeding times, food enrichment programmes are performed. The feeding sessions were proved to be quite useful in studying the stereotype behavior of the wolf.  

However, this study is experimented on small samples and on restricted environment that doesn’t represent the actual environment of a zoo where wolves are allowed to behave as per their nature.

8 0
4 years ago
The reason that the mail bed appears pink is the presence of a larger number of melanocytes in the underlying dermis
Ilia_Sergeevich [38]

Complete question:

True or False: The reason that the nail bed appears pink is the presence of a larger number of melanocytes in the underlying dermis.

Answer:

False

Explanation:

Nails are composed of the lamina, which is a smooth, shiny, translucent, and keratinized structure. The nails are born the nail matrix. The newly formed nail slice along the mail bed, which is the plane surface under the nails.  

The nail bed places under the nail and is composed of a thin epithelium, with no granulous stratum, and a few layers of parakeratotic cells attached to the nail.  

The nail matrix and nail bed have melanocytes. Half of the melanocytes of the matrix produce melanin, while melanocytes of the nail bed are inactive.  

The nail bed is laying over many small vessels that nourish it and provides a pink color to the nails.

6 0
3 years ago
List four things of weather information that are often included in a weather forecast.
Elan Coil [88]

Answer:

Temperature, Precipitation, Humidity, Cloud Cover

4 0
3 years ago
Other questions:
  • Chemical bonds found in living systems do not normally include __bonds
    5·2 answers
  • What is the major difference between density-dependent and density-independent factors?
    11·1 answer
  • Which of the following is NOT part of the six condition that make disease-causing bacteria multiple to harmful levels?
    15·2 answers
  • What is a combination of a nuclear base and a sugar called?
    11·1 answer
  • Viruses A. usually infect only specific types of cells. B. reproduce on their own and sometimes within hosts. C. are nonliving p
    6·1 answer
  • This is for Science it is due today I don't understand plz help
    8·2 answers
  • If an airplane was flying at an altitude of 9,144 m, what air temperature would it experience?
    12·2 answers
  • How are fly eyes and mouse eyes different? Similar?
    10·2 answers
  • According to the principle of causal determinism, everything that will happen in the future is the consequence of what has happe
    10·2 answers
  • What unexpected result did Rutherford obtain in his gold-foil experiment?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!