Decomposers return nutrients to the soil
Answer:
<u>A. True</u>
Explanation:
I took it on a test and it was correct ; )
One example would involve the appearance of black/white lizards in the dessert. Since the white lizards would blend in the sand, they would get eaten less allowing natural selection to favor them over the black lizards. Over time, this will create an unequal distribution of lizards as there will be many more white lizards than black.
Hope this helped :)
Answer:
This question lacks options, the options are:
A. All 270 tall plants were heterozygous
B. All 270 tall plants were homzygous.
C. Only 90 plants were homzygous.
D. All dwarf plants were homzygous.
The answer is D.
Explanation:
This question involves a single gene coding for height in pea plants. The allele for tallness (T) is dominant over that of dwarfness (t). This means that a dwarf plant can only be homzygous recessive (tt) while a tall plant can either be homzygous (TT) or heterozygous (Tt).
According to the question, two tall heterozygous pea plants were crossed i.e. Tt × Tt. Based on this cross, a phenotypic ratio of 3:1 is expected, which is in accordance with the 270 tall plants and 90 dwarf plants (360 total) that was obtained in the cross. Since dwarfism in pea plants is a recessive trait, this means that all the dwarf plants produced in this cross (90) were homzygous (tt).
Answer:
d. You cannot eat too much fiber.
Explanation:
Fiber also called as roughage forms the part of plant based foods. Body is not able to digest it so it passes through the digestive system and makes the bulk of stool. It keeps the digestive system clean and eases bowel movements.
The daily required intake of fiber is 25-30 grams. Many people do not take this much fiber hence suffer from problems like constipation, upset stomach etc. But crossing the threshold of 70 grams of fiber can also lead to another set of problems like:
- bloating
- gas
- dehydration
- poor absorption of some nutrients like calcium, zinc, iron and magnesium because they bind with the fiber which hinders the absorption process.
