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marusya05 [52]
3 years ago
11

There are many ways Earth has been shaped and reshaped over millions

Biology
2 answers:
exis [7]3 years ago
4 0

Answer:

Ecosystems

Explanation:

i got this answer because i said so...

Paha777 [63]3 years ago
3 0

Answer:

Scientists using NASA satellite data found the shape of the Earth appears to be influenced by big climate events that cause changes in the mass of water stored in oceans, continents and atmosphere.

mass changes as water redistributed in oceans, atmosphere, and in soil

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The fusing together of two gametes at fertilization is _____ reproduction. Asexual or sexual?
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Reproduction is sexual.
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3 years ago
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8. Two rabbits are bred together. One is heterozygous for agouti coat
dusya [7]

Answer:

- Parental cross = Cch  x chch  

- F1 = 1/2 Cch (agouti coat); 1/2 chch (albino coat) >> 1:1 phenotypic ratio

Punnett  square:  

          ch         ch

C       Cch       Cch

ch    chch      chch

 

Explanation:

A heterozygous individual is an individual who has two different gene variants (i.e., alleles) at a particular <em>locus</em>. In this case, individuals having the "agouti coat" trait are heterozygous carrying both 'C' and 'ch' alleles. On the other hand, a homo-zygous individual has the same allele at a given <em>locus</em> (here, the 'chch' genotype associated with the albino phenotype). Therefore, as observed in the Punnett Square above, when a heterozygous parent is crossed with a homo-zygous recessive parent for a single gene, alleles segregate in the gametes of both parents so an expected 1:1 phenotypic ratio will be observed.

4 0
3 years ago
Did unicellular or multicellular life appear first ?
Fiesta28 [93]

Answer:

unicellular life first

Explanation:

it arose billions of years ago while multicellular life forms around at least 600 million years ago

8 0
2 years ago
PLEASE ANSWER ASAP PLEASE! 20 POINTS!
Tpy6a [65]

There are six aorganells in an animal cell. The Nucleus,  Ribosomes, Endoplasmic reticulum, Golgi apparatus, Chloroplasts and the Mitochondria.

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3 years ago
In plants, what is the function of the xylem?
podryga [215]

Answer:

Xylem is one of the two types of transport tissue in vascular plants, phloem being the other. The basic function of xylem is to transport water from roots to stems and leaves, but it also transports nutrients.

Explanation:

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3 years ago
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