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Lilit [14]
3 years ago
6

2. How is primary succession different from secondary

Biology
1 answer:
sergejj [24]3 years ago
8 0

Answer:

Primary succession is basically the start of a brand new ecosystem. This is when pioneer species form and grow like lichens and some grasses. Secondary succession is when the ecosystem is already started and it's continuing to grow. During this time populations of other species begin to inhabit the ecosystem like shrubs and trees and some animals. Both of these processes take years to complete. An example of an event would be a volcanic eruption, and a wild fire.

Explanation:

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In garden peas, one pair of alleles controls the height of the plant, and a second pair of alleles controls flower color. The al
Lerok [7]

Answer:

The parent's genotypes are:

Ddpp - tall, white parent

ddPp - dwarf, purple parent.

Explanation:

This question involves two different genes coding for height and flower color in pea plants. The alleles for tallness (D) and purple color (P) are dominant over the alleles for dwarfness (d) and white color (p) respectively.

According to this question, a tall plant with white flowers is crossed with a dwarf plant with purple flowers to produce the following proportion of offsprings: 1/4 tall purple, 1/4 tall white, 1/4 dwarf purple, and 1/4 dwarf white.

Since some of the offsprings contain recessive alleles for both or either genes, the dominant traits of the parent is controlled by an heterozygous genotype. This means that the tall plant with white flowers has a genotype: Ddpp while the dwarf plant with purple flowers has the genotype: ddPp. In a cross between Ddpp × ddPp, 1/4 of each combination of alleles is produced in the offsprings (see punnet square in the attachment).

3 0
2 years ago
For a scientist, assessing the validity of information requires
ahrayia [7]

Answer:

The correct answer is letter C. Experimentation.

Explanation:

For a scientist, assessing the validity of information requires experimentation. In statistics and sciences, the validity of an information has no agreed definition but it generally refers to the how the concept is being experimented before reaching to the point of conclusion.

7 0
3 years ago
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Assignment: Sexual and Asexual Reproduction Exploration
Naddik [55]

Answer:

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Tail length in mice varies within a population. Scientists observed change in the distribution of tail lengths in a mouse popula
Alexxx [7]

Answer:

Not passed along or it is recessive

Explanation:

There are two reasons for the shift in tail length in mice. The first reason could be that the tail length of mice is a recessive trait. In a population where there are also dominant traits, these traits may not show but still be in the population via the heterozygous individuals. The second reason that there may be fewer mice with short tails is that this phenotype causes some survival incompatibility that they may not survive to reproductive years or are not chosen by other mice to cross with. The short tail then does not get passes on.

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3 years ago
Energy from _____ supply about 70 percent of the generation of electricity in the United States. (2 words)
morpeh [17]
FOSSIL FUELS is your answer........
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