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
Svetllana [295]
2 years ago
12

What is a stem cell?

Biology
1 answer:
Scorpion4ik [409]2 years ago
5 0

A stem cell are undifferentiated cells in tissues like bone marrow and the brain in the adult body.

You might be interested in
HELP PLEASE
ladessa [460]

Answer:

1. Across the world, mining contributes to erosion, sinkholes, deforestation, loss of biodiversity, significant use of water resources, dammed rivers and ponded waters, wastewater disposal issues, acid mine drainage and contamination of soil, ground and surface water, all of which can lead to health issues in local.. 2.Mining in the real world can affect society, ecosystems, and the environment of a specific  region because all the minerals that you are looking for won't be right where you want them to be. It is not going to be in the same area. Instead, it will be scattered throughout the mines and you will have to search for them. 3.Students act as mining engineers and simulate ore mining production by using chocolate chip cookies. They focus on the cost-benefit analysis of the chocolate ore production throughout the simulation, which helps them understand the cost of production. As students “mine” with tools such as paperclips and toothpicks, they keep records of their costs—land (cookie), equipment used, cookie size before and after production, and time spent. While the goal is to make as much profit as possible, other costs and goals are taken into consideration—as in real-world mining engineering. For example, mining engineers also consider the resulting amount of destruction to the lithosphere when deciding the best method to obtain ore. Thus, a line item for land reclamation cost is included from the beginning. A provided worksheet serves as a profit and loss statement. 4.Mine reclamation is the process of restoring land that has been mined to a natural or economically usable state. Although the process of mine reclamation occurs once mining is completed, the planning of mine reclamation activities occurs prior to a mine being permitted or started.

Explanation:

i don't have a explanation but i hope this helps

3 0
3 years ago
Researchers argue that some bacteria found in the human gut are in a symbiotic relationship with humans, called mutualism. Which
Rama09 [41]

Answer:

Bacteria provides vitamins to humans

Explanation:

The correct answer would be that bacteria provides vitamins to humans.

<u>By definition, mutualism is a type of symbiotic relationship between two organisms in which both benefit from each other.</u>

Bacteria in the gut of humans that provides vitamins to humans also benefit by making the human gut their shelter. While the vitamins represent an important nutrient to humans for their proper functioning, the shelter is also necessary for the bacteria for their safety.

<em>Hence, the observation that bacteria provide vitamins to humans is consistent with the argument of researchers that some bacteria found in the human gut are in a mutually beneficial relationship with humans.</em>

6 0
3 years ago
What is the relationship between water clarity and urchin survival?
Irina-Kira [14]

Answer:

Explanation:

Likewise, shallow‐water invertebrates living in the thermally stable subtidal ... We use the common tropical sea urchin Lytechinus variegatus to study how ..... Relationship between culturing temperature and larval survival ...

3 0
3 years ago
Read 2 more answers
Will give brainliest plz help <br> Answer 12
marusya05 [52]

Answer:

The 2 ways abiotic factors affect biotic factors are as follows:

  1. An alligator submerges itself under water to stay cool in the summer.
  2. A naked mole rat creates burrows underground.

Explanation:

Abiotic Factors:

All non-living factors that is present or influences an ecosystem. Abiotic factors determine the dynamics of an ecosystem such as the terrain, the atmosphere as well as the inhabitant flora and fauna. Water, sunlight, oxygen, temperature, and soil are all abiotic factors.

Biotic Factors:

All living factors in an ecosystem i.e. the plants and animals.

Lets analyze all the options:

  • A bird picking food out of an alligator's teeth is an interaction between 2 biotic factors, the bird and the alligator or in another case, the bird and the food.
  • Water being oxygenated is an interaction between 2 abiotic factors: water and oxygen.
5 0
3 years ago
in the northern hemisphere, a wind blowning from the south to the north will cause a current of water in which direction
hichkok12 [17]
Hello,

Here is your answer:

The proper answer to this question is "east".

Here is how:

When the wind blows from the south to the north the current of water will go to the east because of the direction of the air is blowing.

Your answer is east.

If you need anymore help feel free to ask me!

Hope this helps!
5 0
3 years ago
Other questions:
  • Describe the effector cells involved in humoral immunity
    12·1 answer
  • why do the northwestern islands in the Hawaiian island chain consist of more coral and less volcanic rock?
    14·1 answer
  • Which of the following shows an unsaturated fatty acid?
    5·1 answer
  • I need help please :(
    8·2 answers
  • What is the dark, organic-rich material that develops when the decay of plant material is slowed by the of lack of oxygen under
    10·1 answer
  • A student empties the water out of a glass. The student observes that small droplets of water remain stuck to the glass. Which t
    5·1 answer
  • In humans, the DMD gene is required for proper muscle function. Mutations in the DMD gene display X-linked recessive inheritance
    15·1 answer
  • Structurally, DNA and RNA nucleotides are similar, although their three basic components differ slightly. One way DNA and RNA di
    9·1 answer
  • I’ll mark brainiest if your right need ASAP
    9·1 answer
  • What are the importance of human and social biology​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!