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anygoal [31]
3 years ago
11

20. Sickle cell anemia is a genetic disease caused by an autosomal recessive gene. If each parent carries one sickle cell

Biology
1 answer:
frosja888 [35]3 years ago
5 0
Three would be an 25 percent chance
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Which method do you think best represents energy flow through ecosystems? Why?
pentagon [3]

Answer:

The circle of life, in which energy flows into the world from the sun, giving plants that energy to live.  All of the organisms in an ecosystem are chemical machines driven by the energy captured in photosynthesis. The organisms that first capture energy, the producers, include plants, some kinds of bacteria, and algae. All other organisms in an ecosystem are consumers.

The plants energy will then be transferred to a small animal, most likely a rabbit or maybe a mouse; depending on the plant. The small animal will then be eaten by a bigger more dominating animal like an eagle or a snake. It just goes on and on. The eagle or the snake will get eaten by a bigger animal or will decompose into the earth giving the soil and plants around it that same energy.

BOOM UR WELCOME SWEETIE :)

8 0
3 years ago
The kidney is an organ that collects wastes and excess water from the blood and sends them to the bladder where they are stored
Viktor [21]

4) digestive and circulatory, because the bladder is part of the digestive system. The circulatory system carries blood around the body using blood vessels.

6 0
3 years ago
Compare and contrast the reasons cell division is important for unicellular and multicellular organisms. 2. Provide an example o
Ganezh [65]

(1)

For unicellular organisms, cell division is important for the reproduction of the population, Unicellular organism mainly use cell division, also called binary fission, for pollution growth. This is because unicellular organisms are only composed of one cell.

Multicellular organisms use cell division for growth and reproduction. Cell division causes increase in the number of cells composing the organism hence its growth in size. Cell division is also used to create gametes that are used in reproduction by fertilization.

(2)

Even in fully developed organisms, cell division is important in tissue repair. In tissue homeostasis, there is a balanced rate of cell division and cell death .  An example in muscles. Due to the stress experienced by muscle cells, they usually have a lower life span and therefore the damaged cells are often replaced with new ones by cell division. This prevents tissue wastage.

(3)

Growth factors signal the growth of a cell. They usually bind receptors on the cell surface and indicate how the cell should grow and divide base don environmental stimuli. An example is during regular exercises. Growth factors indicate that the muscle cells should divide regularly and grow bigger to accommodate the higher stress in the muscles from the workout. This is how your muscles grow bigger and stronger with more exercise.  

(4)

Differentiation of cells occurs through the silencing of some gene allowing the cell to produce particular proteins (and other biomolecules) that align with its functions in the body. This especially critical in multicellular organisms.  An example is that while al the cells in your body have the same DNA, some cells differentiate into liver cells while others into lungs, stomach, heart, and etcetera.  

Learn More:

For more on cell division check out;

brainly.com/question/4365207

brainly.com/question/11266913

#LearnWithBrainly

6 0
3 years ago
Hi, can you help me ..............
yuradex [85]

Answer:

C.)

Explanation:

5 0
3 years ago
All cells have DNA that must be replicated True or false
Stolb23 [73]

The answer is True.

7 0
3 years ago
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