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Andrej [43]
3 years ago
7

PLEASEE HELPPP!!!!

Biology
1 answer:
dusya [7]3 years ago
8 0

Answer:

<em>The correct option is B) Freshwater snails and small fish</em>

Explanation:

As we can see from the food web, the fresh water snails and the small fishes both feed on algae and water plants as their source of food hence, both these organisms feed on the same food.

Other options, like option C, is not correct because water boatman and water plants do not feed on the same sources. Water boatman feeds on reeds whereas water plants do not. Water plants will make their own food.

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Fruit color in a particular plant is controlled by a set of three quantitative trait loci (i.e., QTLs or polygenes), that work i
tankabanditka [31]

Answer:

1/8

Explanation:

Given that the trihybrid parents have AaBbCc genotype for fruit color. The trait is a quantitative trait i.e. each dominant allele will have an additive effect on it. In this case, AaBbCc and AABBCC will not produce same fruit color because AaBbCc has only three loci contributing to the color while in AABBCC all the six loci are contributing to the color. For an offspring to be exactly similar to the AaBbCc parents it should have the same genotype of AaBbCc.

The probability of Aa to come from a cross between Aa and Aa is 2/4 or 1/2

The probability of Bb to come from a cross between Bb and Bb is 2/4 or 1/2

The probability of Cc to come from a cross between Cc and Cc is 2/4 or 1/2

So the collective probability of AaBbCc offspring from a cross between AaBbCc and AaBbCc parents would be=

1/2 * 1/2 * 1/2 = 1/8

Hence, assuming no effects of the environment, 1/8 of the offspring will have the same fruit color phenotype as the trihybrid parent.

4 0
3 years ago
An enzyme in a cell became dysfunctional because of an alteration. As a result, the DNA strands would not separate to begin the
yanalaym [24]

Answer:

C. Helicases

Explanation:

Helicases to be termed as enzymes that is blind and contains acid i.e. remodel nucleic or have protein i.e. nucleic acid. It is important as the time of DNA replication as it divided the DNA i.e. double stranded into one single standard that permits each and every strand for copied it

Also it cracks the bonds i.e. hydrogen that lies between the two strands this could create a replication fork.

Therefore in the given case, the helicases is affected

3 0
2 years ago
Please help!
Natasha_Volkova [10]

Answer:

1) The ecosystem would have the abiotic factors of low precipitation, dry winds, and low temperatures. The biotic factors would include the animals living with the penguins such as polar bears and yaks.

2) The population would suddenly increase if either the penguin's predators had a drop in numbers or if the penguin's food source became more readily available. This growth in population would result in food becoming harder to find and predators once again growing in numbers. This would eventually cause the penguin population to shrink once more.

3) Predators would die out. Whatever organism(s) were the penguin's food source would grow in size exponentially. Other animals may suffer a drop in numbers if the penguin's predators choose to prey on them.

5 0
3 years ago
Magma is a mixture of diffrent minerals or a rock? ​
Anna71 [15]

Answer:

It is rock. hope it helps

Explanation:

4 0
3 years ago
Read 2 more answers
What process moves water to the atmosphere?
garik1379 [7]

Transpiration should be your answer, hope I helped. Good luck with your future studies!!


-A

6 0
2 years ago
Read 2 more answers
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