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Reika [66]
3 years ago
11

Please Please Please Help Me With This Science Sheet!!!!!!!

Biology
1 answer:
weeeeeb [17]3 years ago
7 0

1. No the Earth does not benefit from the greenhouse effect. The greenhouse effect causes the Earth to get warmer. With the Earth's heat increasing the ice glaciers are melting causing our oceans to rise.

2. Living plants uses some of carbon dioxide through the process of photosynthesis. Burning them only causes the carbon dioxide level to rise.

3.Recycling helps reduce greenhouse emission from landfills. 

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Tay-Sachs, which is a recessive lethal disease, results only when individuals possess two copies of the disease-causing allele.
VashaNatasha [74]

Answer:

a. Heterozygous individuals may pass on their copy of the disease-causing allele to offspring.

Explanation:

Tay-Sachs, which is a recessive lethal disease  ---- Let say the recessive lethal diseases is s

∴ it only results when an individual posses two copies of the diseases-causing allele i.e two copies of the disease will be ss.

Now, when two hetrozygous individuals crossed , it is obvious that each can pass on their copy of the disease-causing allele to the offspring.

Let show an illustration for the above statement.

Let the heterozygous individual be Ts, if Ts cross with another Ts;

we will have:

Ts × Ts

         T          s

T        TT        Ts

s        Ts          ss

the offspring are TT,Ts,Ts,ss

We can now see how the Heterozygous individuals pass on their copy of the disease-causing allele to the offspring (Ts).

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Match the terms to their definition. 1. constructive a process in which the edge of one crustal plate sinks below the edge of an
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Answer:

Is this a question about the topic of biology

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______ is the process by which nerve cells are coated with far cells that enhances the speed and efficiency of the information t
givi [52]

Answer:

Myelination

Explanation:

The covering of myelin around the axons is called the myelin sheath. This myelin sheath helps in transfer of information faster and also in complex  processes of the brain. The process of myelination begins in the PNS (peripheral nervous system).

The myelinated section are seperated from each other with a gap called nodes of ranvier. Glial cells (oligodendrocytes) forms the myelin sheath in the central nervous system and schwann cells (glial cells) forms the myelin sheath in peripheral nervous system. The propagation of electrical impulse in the myelinated fibers is by saltatory conduction that is from one node to another.

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The various forms of a single gene that code for brown, blonde, or red hair are called
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The various forms of a single gene that code for brown, blonde, or red hair are called genotype. For example, Bb and Dd.
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