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valentina_108 [34]
3 years ago
6

Rachel Carson was one of the first ecologists to warn against the widespread use

Biology
1 answer:
Mice21 [21]3 years ago
7 0

Answer:

Explanation:

chel Carson was born just over 100 years ago in 1907. ... 1. Silent Spring was directed against the chemical industry and its production of deadly pesticides. ... “the elimination of the use of persistent toxic pesticides should be the goal”—as ... chemicals has shifted from cancer and the potential for genetic

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Indentify the error that occurred in meiosis II
erastova [34]

Answer:

Non-disjunction of chromosomes.

Explanation:

2 sets of Chromosomes are supposed to be separated into each daughter gamete cells but non disjunction occurred that resulted in both sets of chromosomes being isolated into 1 gamete and the other having no chromosome

3 0
3 years ago
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In piranha, fish with large teeth represent the dominant trait. Because the dominant trait masks the recessive trait, in a popul
vodomira [7]

Answer:

B. 25%

Explanation:

Assuming the trait for teeth size is represented by the allele A. large teeth size is dominant and will be represented by A while small teeth size will be represented by a.

Assuming that the population of 1,000 [piranhas are all heterozygotes and they crossbreed with one another:

Aa   x   Aa = AA, Aa, Aa and aa

The ration of piranhas with large teeth to that of the small teeth is 3:1 or 75:25.

Hence, about 25% of the next generation of the population is ecpected to have small teeth.

The correct option is B.

8 0
3 years ago
What is produced by the process of meiosis?
den301095 [7]

Answer:

Meiosis is a type of cell division that reduces the number of chromosomes in the parent cell by half and produces four gamete cells. This process is required to produce egg and sperm cells for reproduction. So basically saying, C is the right answer.

Explanation:

7 0
2 years ago
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You observe an individual of your favorite study organism expressing the dominant phenotype for a certain trait. how would you g
spayn [35]
If it is the same dominance as usual it is homozygous
5 0
3 years ago
The cell is the fundamental unit of life and requires certain basic functions, including:
pochemuha

Answer:

Explanation:

A boundary that distinguishes inside from outside the cell yet allows materials to enter or leave the cell.

The cell needs a barrier for protection, rigidity and also for easy transportation.

7 0
3 years ago
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