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vlabodo [156]
3 years ago
13

What process is most important in the expansion of plant cells?

Biology
1 answer:
Stella [2.4K]3 years ago
8 0
Water uptake, water is 90% of the plant cells expansion
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A ______ frequency causes a _____wavelength and ______ energy. Lesson: 4.09 Question 10 options: higher, shorter, high low, shor
shtirl [24]

Answer:

A higher frequency causes a shorter wavelength and higher energy.

A shorter frequency causes a greater wavelength and low energy.

Explanation:

Frequency is the number of waves that move at a period of time. It is measured by counting the number of crest point.

Wavelength is the distance between waves. A wave with higher frequency have crest that a very close and therefore the distance between them or wavelength is short compare to a wave with low frequency that the distance are farther apart and they have long wavelength. Therefore to generate high frequency of wave , more energy is required to do this .

7 0
3 years ago
If genes are on different chromosomes, the law of independent assortment states that -
GaryK [48]

Answer:

Gene pairs segregate randomly and independently of each other.

Explanation:

Genes are the basic units of hereditary and are located on chromosomes. According to Gregor Mendel's law of independent assortment  which states that the alleles of two (or more) different genes are sorted into gametes independently of one another. This means that the allele a gamete receives for one gene does not influence the allele the same gamete receives for another gene.

For example, in a the pea plants used by Mendel in his studies, the genes for seed shape and flower color were inherited independent of each other by the offspring of the parent pea plants. Therefore, Mendel concluded that the inheritance of each trait was independent of the other.

6 0
2 years ago
What happens to the abundance of angiosperm and gymnosperm pollen fossils at the kt boundary?
dimaraw [331]
The KT boundary marks a mass extinction event. the KT boundary is the time between the Cretaceous and Tertiary periods. An asteroid hit the earth at the end of the Cretaceous and that caused the end of the Cretaceous period. Before the KT boundary, pollen from angiosperms and gymnosperms is high. After the meteor hits the earth, a mass extinction occurs and the amount of pollen from gymnosperms and angiosperms decreases dramatically, while the amount of spores from ferns increases. During the Cretaceous period there were many species of gymnosperms and angiosperms but they disappeared at the KT boundary, when the asteroid hit the earth. 
3 0
3 years ago
In a particular species of frogs, black spots are a dominant trait and their absence is a recessive trait. In a population of fr
kipiarov [429]

The expression which is the correct way to calculate the frequency of the dominant allele is 134/200. Thus, the correct option is D.

<h3>What is Allelic frequency?</h3>

The allelic frequency may be defined as the sum total of all the alleles of a gene in a population. It represents the overall genetic diversity within a population.

The allelic frequency is calculated by the formula when the genotypes are given in number. It is as follows:

2 × Number of Purebred dominant + Number of heterozygous/ 2× Total number of individuals in a population.

∴ Allelic frequency of dominant allele = 2 × 50 + 34/ 2× 100 = 134/200 = 0.67.

The allelic frequency of the Dominant allele is 0.67 while the allelic frequency of the recessive allele is 0.33.

Therefore, it is well described above.

To learn more about Allelic frequency, refer to the link:

brainly.com/question/14649601

#SPJ1

5 0
2 years ago
96410 mg = ____kg<br> Help me
kow [346]

Answer:

0.09641

Explanation:

not sure how to explain if its milligrams and kilograms

3 0
3 years ago
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