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Yakvenalex [24]
3 years ago
13

The one-toed horse of today steadily evolved from its five-toed ancestor.​

Biology
1 answer:
Vesnalui [34]3 years ago
6 0

Answer:

It is true that one-toed horse of today steadily evolved from its five-toed ancestor.​

Explanation:

  • Evolution is the law of nature.There is a continuous process of evolution in each biological species in nature.
  • Similarly, horses had 5 toes millions of year back, but according to the theory of gradualism their use decreased and toes started fusing.
  • Now, its only one toe at present but the vestigial left over provides the solid evidence for the fact that horses had 5 toes in the past.
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What type of energy transfer is made possible by a nine-volt battery in a calculator?
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C. chemical to electrical
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3 years ago
Regulatory proteins bind to _____. the operator the lactose-utilization genes the regulatory gene RNA polymerase transcription f
jarptica [38.1K]

Answer:

Regulatory gene

Explanation:

Transcription is one of the major processes that occurs during gene expression. It is the transfer of the genetic instructions in DNA to mRNA. A strand of mRNA is made using complementary base pairs.

However, there is need for gene expression to be regulated.

Gene regulation refers to the mechanism that acts to induce or repress the expression of a gene. These include structural & chemical changes to the genetic material, binding of proteins to specific DNA elements to regulate transcription. These proteins that influences transcription by binding to specific nucleotide sequences (DNA segments/gene) are referred to as REGULATORY PROTEINS and those involved in regulating transcription of genes are called TRANSCRIPTION FACTORS.

Regulatory proteins controls the rate and manner of gene expression by binding to specific genes, thus, making it easy or hard for RNA polymerase (enzyme that attaches to DNA to synthesize mRNA molecule) to bind to the promoter of that gene.

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5 0
3 years ago
In a long bone, the osteons are:
Margarita [4]

Answer:

B. lined up perpendicular to the long axis of the bone, in the direction of perforating canals.

Explanation:

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I hope you find this information useful and interesting! Good luck!

3 0
3 years ago
Which statement best explains why these cells have structural differences?
Natalka [10]

Answer:

The answer is B, The cells have different functions.

Explanation:

Thx you for the points and plz vote me Brainliest!

8 0
2 years ago
In my opinion I think the main events of glycolysis. How many ATP molecules are produces and consumed by glycolysis? What effect
svlad2 [7]

Glycolysis uses 2 ATP and produce 4ATP. So the net gain is true.

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Explanation:

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In ETC, the hydrogen carriers NADH and FADH gives off the hydrogen to reduce the complex 1 and 2 respectively and itself gets oxidized. Thus the electron given off is transferred between 4 complexes to finally give off to oxygen to form water.

5 0
3 years ago
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