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sashaice [31]
3 years ago
15

Dichotomous keys ask open-ended questions about animal behavior. open-ended questions about easily observable characteristics. y

es-or-no questions about animal behavior. yes-or-no questions about easily observable characteristics.
Biology
1 answer:
kogti [31]3 years ago
6 0

Answer:

D.) yes-or-no questions about easily observable characteristics.

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In an ecosystem, energy enters in the form of solar energy or light energy from sun. Solar energy is transformed into various other types of energies like kinetic energy, chemical energy, potential energy, etc; but it eventually leaves the ecosystem in the form of heat energy.

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Brown hair is dominant over red hair. What will the genotypes and phenotypes of the offspring of a cross between a homozygous br
Artemon [7]

Answer:

1) In the first step, we need to predict the possible alleles for the cross. The dominant allele will be written with a capital letter. The recessive allele will be written with a small letter. Hence, the allele for brown hair colour will be B and the allele for red hair colour will be b.

2) In the second step, we need to determine the genotype of the parents. The genotype of the homozygous dominant parent will be BB. The genotype of the heterozygous brown hair colour will be Bb.

3) The punnet square for cross between these parents can be shown as follows:

        B           b

B     BB       Bb

B     BB       Bb

4) In the fourth step, lets determine the phenotype of the children. The phenotype of all the offsprings born will be brown hair colour.

5) The genotype from the punnet square shows that there is a 50% chance that the offsprings will be heterozygous dominant (Bb) for brown hair colour and their will be a 50% chance that the child born will be homozygous dominant (BB).

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3 years ago
What part of the brain is responsible for happiness
victus00 [196]
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Answer: science

Explanation: she was a scientist

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in accurate all bacteria, cell wall may not be present !
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