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Fantom [35]
3 years ago
5

While cleaning out the attic, you find a packet of seeds that your grandmother gathered from her garden. You plant them outside,

and some of them sprout. What was the condition of these germinating seeds while they were in the attic? A) They were dead, but the embryo cells revived in response to water. B) They were alive but dormant. C) They were turgid because of lack of water. D) They were alive and very metabolically active. E) The endosperm cells were dead; the embryo cells were alive but inactive.
Biology
1 answer:
Phantasy [73]3 years ago
7 0

Answer:b

Explanation:some seeds do not germinate during adverse conditions.this is called dormancy.this may occur due to hard seed coat.this seed coat prevents the entry of water and oxygen which are necessary for the plant to grow and germinate.

Water is a nessesary medium for essential metabolic reactions in the seed.the temperature at which is seed would germinate also varies.

Oxygen is needed for a germinating plant to obtain energy through respiration. The seed coat may also be so tough that they resist growth and expansion from taking place.

Seeds are able to break dormancy on their own.some may need to undergo natural processes that lead to softening.this process may be slow.some others may need heat or certain nutrients.

Germination of seed occurs when the dormant plant has taken in water and oxygen to show high metabolic activities leading to the formation of a seedling.

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Computers are able to continue their operation even when problems are present.
Dima020 [189]

FAULT-TOLERANT computer systems are systems that are built with the ability to keep working to a level of satisfaction, even in the presence of faults within one or more of its components. <span>This fault tolerant ability is sometimes referred to as graceful degradation</span>

8 0
3 years ago
a man with blood group A marries a woman with blood group O and their daughter has blood group O. Is this information enough to
Nonamiya [84]
This information is not enough to tell which of the traits-blood group A or O is dominant.
It is known that blood groups A and B are codominant, which means both will express if found together in a heterozygote. However, blood group O is recessive. But from this information, you can conclude that blood group O is dominant. Why is that so?
Let's imagine that father's genotype is AA and mothers' genotype OO and cross them:
Parents:               AA    x    OO
Offspring:      AO    AO   AO    AO
Since we have information that daughter has blood group O, we can conclude that O is dominant over A and mask it. This is not true! In this case, the daughter will have blood group A.

Mother's genotype surely is OO (because O allele is recessive, so to express a recessive trait both alleles must be recessive). But, the father cannot be AA, because it must give O allele to the daughter so she can have genotype OO and blood group O. So, the father's genotype is AO.  Let's take a look at that crossing:
Parents:         AO   x    OO
Offspring:   AO   AO   OO   OO
Thus, in this case, daughter can have genotype OO and blood group O.
3 0
3 years ago
What keeps a white dwarf from collapsing under its own gravity
Rashid [163]
The electron degeneracy pressure keeps white dwarf stars from collapsing in on themselves.
5 0
3 years ago
Read 2 more answers
What is the importance of the mitosis​
Anarel [89]

Answer: See explanation.

Explanation: It plays an important part in the development of embryos, and it is important for the growth and development of our bodies as well. Mitosis produces new cells, and replaces cells that are old, lost or damaged.

6 0
3 years ago
Chuck Wildlee, a baseball pitcher, was struck on the head by a line drive hit by Charley Hussel. Fortunately, Chuck was not seri
enot [183]

Answer:

Option C, he lost both sensory and short-term memory

Explanation:

Sensory memory is basically the information received by the five sense organs and also the instruction given by brain to the respective sense organ.  

This sensory memory keeps  storing and is collectively referred to as short term memory.  

Since Chuck Wildlee was unable to remember how many balls and strikes the batter had. In past he would have perceived this information through eyes which should have been part of sensory memory and later the part of short term memory.  

Thus, it can be said that Chuck Wildlee lost both his sensory memory and short term memory  

Hence, option C is correct

4 0
3 years ago
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