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lutik1710 [3]
3 years ago
9

When wind carries pollen to a female cone what occurs

Biology
1 answer:
dalvyx [7]3 years ago
8 0
It becomes pollened and therefor more will come afterwards
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A large section of the lower troposphere with uniform temperature and humidity is called _______.
Lilit [14]

Answer:

D. an air mass

Explanation:

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3 years ago
What does the homunculus model demonstrate about our bodies?
topjm [15]

Answer:the homunculus or, somatic sensory homunculus, is the portion of the sensory cortex which maps and represents our sensory nerves throughout your body

Explanation: Large portions represent our hands, mouth, and tongue. Smaller representation is given to our pinky toe and backside of our knee.

4 0
2 years ago
A change in the frequency of alleles from one generation to the next is the definition of:
posledela
From a modern genetic perspective, this is defined as evolution.
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How does nerve impulses travel from one neuron to another?
olga2289 [7]

Answer:

(d) Electrical-->Chemical-->Electrical

Explanation:

A nerve impulse is the transmission of an electrical change along the neuron's membrane from the point at which it is stimulated (synapse). The normal direction of impulse in the body is from the cell body to the axon. This nerve impulse, or action potential, is a sudden and rapid change in the transmembrane potential difference.

Normally, the membrane of the neuron is polarized at rest, which means that the ionic constitution of the medium internal to the membrane is different from the external medium, which generates different electrical charges in one medium and the other, so this difference, ie , the potential during rest is negative (-70 mV). The action potential thus consists of a rapid reduction of membrane negativity to 0mV and inversion of this potential to about + 30mV, followed by a rapid return to values slightly more negative than the resting potential of -70mV.

Nervous impulse or action potential, therefore, is a phenomenon of an electrochemical nature and occurs due to changes in the permeability of the neuron membrane. These permeability modifications allow ions to pass across the membrane. Since ions are electrically charged particles, changes also occur in the electric field generated by these charges.

Thus, we can say that the correct answer to this question is: Electrical -> Chemistry -> Electrical

8 0
3 years ago
Kaylee is making a poster to show changes that happen in nature during winter in northern
kari74 [83]

During the winter season, the tree branches get dormant.

<u>Explanation:</u>

As the winter season starts, many plants show very slower metabolism that is the growth of the plants become very slow.

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These tree branches become dormant during winter season, and it is mostly covered with the scales.

3 0
3 years ago
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