What are 2 facts about energy?

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Bad White [126]

Answer:

XD made my day

Explanation:

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5 0

3 years ago

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For plants and other organisms to develop differences among their respective species the alleles of their genes must contain var

olasank [31]

A) Mutation is the original source of variations for plants and other organisms which develops differences among their respective species

Explanation:

Genetic variation leads to the natural differences between each individual and among individuals of a species. The main cause for this variation is due to alleles that cause variations in the composition of genes or the DNA sequences.

A mutation is a genetic variation which leads to the creation of a new allele in a species population. Each variation in the DNA sequence leads to an allele formation and each allele leads to a difference in character or trait between individuals since they are the alternate version of the original genes.

Although genetic variations could be brought about by crossing over, random fertilization, or independent assortment; mutation is the original source because it provides the basic raw material for all the evolutionary changes.

8 0

3 years ago

The nurse is caring for an infant who has frequent respiratory infections. while assessing the infant, the nurse hears a loud an

Aleks [24]

The nurse should infer base from the findings is that the infant is having a ventricular septal defect in which cause the infant having to produce a loud and harsh holosystolic murmur that is found in the left lower sternal border.

3 0

4 years ago

Which of these gymnosperms are known to be important in maintaining the balance of carbon in an ecosystem?

CaHeK987 [17]

The correct answer is: [D]:

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→ " redwood tree forests " .

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Note: Let us consider the other answer choices.

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Choice: [A]: "garden flowering plants" ; is incorrect — since these are not generally considered to be part of a true or traditional "ecosystem" ; and especially since "garden flowering plants" are, in fact, "flowering plants" — which means that they are "angiosperms" — Not "gymnosperms ".

→ Rule out: " Choice: [A] " .

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Choice: [B]: " ferns and liverworts " ; is incorrect — since both ferns — as well as liverworts — are Not "gymnosperms ".

Liverworts are "bryophytes" {which lack true vascular tissue] ; and ferns are "pterophytes" ["seedless vascular plants"].

→ Rule out: " Choice: [B] " .

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Choice: [C]: " mosses and horsetails "; is incorrect ; since both mosses — as well as horsetails — are Not "gymnosperms ". Mosses are "bryophytes" (see aforementioned) ; and horsetails are "non-seed bearing plants" that spread vegetatively [underground; by asexual reproduction — and Not by seed .].

→ Rule out: " Choice: [C] " .

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Choice: [D]: " redwood tree forests " ;

— is the only answer choice provided that is a "gymnosperm".

Furthermore, the "redwood tree" is a conifer (i.e. "coniferous; or, "cone-bearing" plant} that reproduces through seeds spread by "cone") — and all "conifers" are a type of "gymnosperm."

Furthermore, "redwood trees" grow large and tall, and redwood forest communities within an ecosystem; due to there size and presence, are: "known to be important in maintaining the balance of carbon in an ecosystem."

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→ As such, the correct answer is:

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→ Answer choice: [D]: " redwood tree forests " .

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Hope this helps!

Best wishes to you in your academic endeavors

— and within the "Brainly" community!

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5 0

3 years ago

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HELP PLEASE DO NOT GIVE ME A LINK

liubo4ka [24]

It’s the photic zone!!!! I learned this last year

3 0

3 years ago

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