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umka21 [38]
3 years ago
7

Most of the worlds fossil fuel reserves are made up of

Biology
1 answer:
prohojiy [21]3 years ago
5 0
Most of the worlds fossil fuels are made up of Coal.
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HELP 1 QUESTIONN BIOLOGY
Zigmanuir [339]

Answer:

1. Egg fertilized to form a zygote

2. Cell division in the zygote to form a morula  

3. Cell division to form a blastocyst  

4. Differentiation of cells in the blastocyst

5. Development of tissues

6. Development of organs  

Explanation:

8 0
3 years ago
How does lead poisoning affect the nervous system?
Mandarinka [93]
When researchers examine these damaged nerves, they find that the myelin insulation is often gone and the axons are destroyed. These changes prevent nerves from transmitting messages properly.
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4 0
2 years ago
How does the human brain store and retrieve memories?
krek1111 [17]

Answer: After consolidation, long-term memories are stored throughout the brain as groups of neurons that are primed to fire together in the same pattern that created the original experience, and each component of a memory is stored in the brain area that initiated it (e.g. groups of neurons in the visual cortex store a sight, neurons in the amygdala store the associated emotion, etc).

Explanation:

3 0
3 years ago
Gastrulation, when the cells organize themselves into an embryo occurs 2 weeks after conception. What do the 3 layers of cells g
Travka [436]

Answer:

Gastrulation is the process where the developing embryo forms the process of the 3 germ layers. These germ layers are formed due to the movement of the single-layered blastula. Gastrulation starts during the third week of the human embryo.

The three germ layers give rise to different organs of the fetus. The 3 layers are ectoderm or outer layer, mesoderm or middle layer, and endoderm or inner layer.  

These 3 germ layers give rise to different organs of the human fetus. Ectoderm forms epidermis, skin, hair, olfactory organs, eye lense. glands like pituitary. Sensory nerves, skeleton, pigment cells are also formed from ectoderm.  

Ectoderm also forms a neural tube that further divides to form the brain, spinal cord.

Mesoderm form the vertebral column, skeletal muscle, excretory organs, reproductive organs. It also forms blood cells, blood vessels, body cavity or coelom.

The inner layer endoderm gives rise to the lining of the digestive tract, liver, pancreas, bladder, etc.

6 0
3 years ago
What is the structure that functions as the main food producer for the survival of the plant
Tems11 [23]

Answer:

ahhhh

Explanation:

ahhhhhh

7 0
2 years ago
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