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brilliants [131]
3 years ago
13

When alzheimer disease sets in early and impacts those under age 60, the final phase of the disease typically occurs around?

Biology
1 answer:
Aneli [31]3 years ago
8 0
When alzheimer disease sets in early and impacts those under age 60, the final phase of the disease or death typically occurs around 3 to 5 years after the first signs of the disease appear. Alzheimer's disease is the most common type of dementia, which is represents the memory loss and other cognitive abilities serious enough to interfere with normal life. Alzheimer accounts for about 60 to 80 percent of dementia cases.
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Which of the following is the best definition for the process of photosynthesis?
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Answer:

The answer to your question is: C

Explanation:

A.) Plants digest sugars to make energy.  This option is incorrect, the process in which plants digest sugars to make energy is called cellular respiration.

B.) Plants use oxygen and glucose to make carbon dioxide.  This option is incorrect, photosynthesis doesn't make carbon dioxide, it use it to make sugar.  

C.) Plants use sunlight and carbon dioxide to make sugars.  This option is correct, photosynthesis is a process that use carbon dioxide to make sugars.  

D.) Plants use sunlight to make chlorophyll and chloroplasts. This option is incorrect, plants use sunlight in the photosynthesis process to make sugars, not to make chlorophyll and chloroplasts.

4 0
2 years ago
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PLEASE HELP: Why do we need 250 different kinds of cells?
AnnZ [28]
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7 0
3 years ago
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A researcher has developed two stains for use with seed plants. One stains sporophyte tissue blue; the other stains gametophyte
sukhopar [10]

Answer:

A) The pollen grains will be pure red.

Explanation:

Plants have alternation of generations, this means that there are two different stages in their life-cycle: a sexual haploid (n) phase and an asexual diploid phase (2n). These phases occur in different individuals, so there is an haploid plant called gametophyte that carries gametes and after fecundation, it will rise a diploid sporophyte (asexual).  

In seed plants, the sporophyte is the plant that we normally see, and the gametophyte is reduced into an organ of the sporophyte. The male gametophyte is the pollen that is produced in the sporangium in anthers (parts of sporophyte).  When a pollen grain fecundes a female gametophyte (egg), it will produce a diploid embryo or new sporophyte.

Therefore, if the researcher exposes pollen to both stains, these grain will stain red, because red stain identifies gametophyte tissue.

3 0
3 years ago
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amm1812

Answer:

-In Florida, it is hot and muggy year round.

Explanation:

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