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Juliette [100K]
3 years ago
12

PLSS HELP ME WITH THIS IMMEDIATELY!!! ILL MARK U BRAINIEST IF U DONT LEAVE A LINK OR GUESS!!

Biology
2 answers:
snow_tiger [21]3 years ago
4 0

Answer:

Number 2

Explanation:

LiRa [457]3 years ago
3 0

Answer:

the 2nd one i believe

Explanation:

hope this helps :)

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Angelina_Jolie [31]
1. tetrapods are ( four-limbed animals ) . examples of tetrapods include (extanct and extinct amphibians , reptiles , and mammals )
2. Tetrapods first appear in the fossil record ( 367.5 ) million years ago .
3. Charles Darwin predicted that tetrapods evolved from ( a finned organism that lived in the water) . What observation leads do that hypothesis?( they have “fleshy fins” and “lobe fins”) .
5. Fish use ( gills ) to breathe underwater .
3 0
3 years ago
briefly explain what happens to energy and to molecules when bonds are formed and broken in molecules of ATP and ADP ( explain a
Nikolay [14]
Hello! ATP stands for adenosine triphosphate, and ADP stands for adenosine diphosphate. The difference between the two molecules is that ATP has three phosphate group, and ADP has two phosphate groups. ATP is an unstable molecule, which means it will release energy when it becomes reduced to ADP, meaning it will break off one of its phosphate groups. Hope this helps, and let me know if you have any questions! ^-^
4 0
2 years ago
Read 2 more answers
When two objects attract, it means that they....
DerKrebs [107]

Answer:

A

Explanation:

If one object attracts another object, it causes the second object to move towards it. Anything with strong gravity attracts other things to it.

8 0
3 years ago
Read 2 more answers
assume that Q is the frequency of the recessive gene R expressing y color piece and that in a isolated area 68 plants with red a
Oksi-84 [34.3K]

Explanation:

<u>q= 0.566</u>

Homozygous individuals have two copies of the same allele for a gene. Homozygous dominant individuals carry two copies of the dominant allele, while homozygous recessive individuals carry two copies of the recessive allele.

Further Explanation:

DNA sets contain genes that may have different forms named alleles. DNA, which is the genotype, is transcribed into mRNA and later translated into amino acids which are connected together by rRNA to form proteins which constitute the phenotype of an organism. DNA sequence mutations form new allles, impacting the resulting mRNA, and thus the encoded protein. Within species, there may be adaptation, along with genetic drift, preferential breeding, and natural selection.

Within a population certain alleles are fixed over time. In Hardy-Weinberg-allelic frequencies, the equilibrium for a particular gene is not undergoing evolution, being stable for several generations. Mutations, during this time affect the corresponding mRNA, and thus the encoded protein. Evolution may occur within populations, along with genetic drift, selective mating, and natural selection.

Over time, certain alleles become fixed within a population. Equilibrium for a specific gene is not undergoing evolution in Hardy-Weinberg-allelic frequencies are stable for several generations. During this period, mutations do not occur within the population, this is shown as

p^{2} + 2pq +q^{2} = 1   ....(eqn i)

where...

p represents the dominant allele frequency

q represents the frequency of the recessive allele

q^2 = the genotypic frequency of the homozygous recessive

p^2= the genotypic frequency of the homozygous dominant

2pq= frequency of the heterozygous genotype

and simply p+q= 1                  ...(eqn ii)

The allelic freq. of r is denoted by q and the allelic frequency, R is denoted by p...

The total number of individuals= 32+ 68= 100

Thus q= √q^{2}= homozygous recessive individuals  (white flowers)

Since there are 32 white flowering plants , freq rr= 32÷ 100= 0.32

...thus q^{2}=0.32

   and q= √ q^{2}= √0.32= 0.566

Learn more about mutations at brainly.com/question/4602376

Learn more about DNA and RNA at brainly.com/question/2416343?source=aid8411316

#LearnWithBrainly  

8 0
3 years ago
John attaches a ball to a spring
Serggg [28]

Answer:

Downwards

Explanation:

Im not sure because there's no choices

3 0
3 years ago
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