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aleksandrvk [35]
3 years ago
13

Question 4 of 25

Biology
2 answers:
mina [271]3 years ago
8 0

Answer: I think its B.

Snezhnost [94]3 years ago
3 0

Answer:

B. The products of photosynthesis are the reactants of cellular respiration.

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Which of the following organelles is common to both prokaryotic and eukaryotic cells
Zarrin [17]
A. Cytoskeleton. Prokaryotes do not have a nucleus. 

3 0
3 years ago
How do you aggregate fruits develops
faltersainse [42]
This process starts with a flower that contains several carpels with an equal number of ovaries. Each ovary contains a single ovule that develops into a seed following fertilization.
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3 years ago
In order to keep all other things the same and isolate the effects of one particular variable in the biology experiment, Kate wi
miskamm [114]

Answer:

Make sure all tested rats are the same age.

Offer the same type of food to the rats in each trial.

Explanation:

<em>In order to be able to isolate the effects of one particular variable during a research, all the subjects in each trial must be subjected to the same conditions except the variable whose effects is being isolated.</em>

Hence, Kate must offer the same type of food to the rats in each trial as well as make sure that all tested rats are the same age.

6 0
3 years ago
You want to identify dominant /recessive relationship for skin color for a new frog species that you found in the rain forest. A
noname [10]

Answer:

bright blue trait = recessive

yellow trait = dominant

Explanation:

let the letter B represent the gene for skin colour.

This means that the dominant gene is 'B' while the recessive gene is 'b'

A dominant gene is one that is exhibited phenotypically in the presence of both gene variants (heter0zygous state - Bb) while a recessive gene is only expressed phenotypically when it is in a h0m0zygous state (bb)

In order to find out the genotype of the parents, let us consider each cross one after the other.

1. A bright blue female and a bright blue male produce all blue progeny.

2. A yellow female and a yellow male produce a mix of both bright blue and yellow progeny

From statement 2, it can be deduced that the trait for yellow colour is dominant because a cross of the parents exhibiting this trait produces bright blue offsprings too, meaning that the genetic composition of the parents contains the gene that codes for yellow colour. Since these parents show a yellow colour in a heterozygous state, then the trait for yellow colour is dominant.

Therefore, the genotypes of the parents in each case include:

1. A bright blue female and a bright blue male produce all blue progeny. (bb × bb)

2. A yellow female and a yellow male produce a mix of both bright blue and yellow progeny (Bb × Bb)

6 0
3 years ago
if a human egg recieves 2 copies of a chromosome and is fertilized, how many copies of the chromosme would there be in the resul
Xelga [282]
Since embryo forms after fertilization, the cells that are developing will still have 2 complete sets of chromosomes or 2 genomes, having a maximum number of 2 chromosomes of the same type.

For instance 2 chromosomes 21 for instance.
7 0
3 years ago
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