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il63 [147K]
3 years ago
15

When a planet travels in an elliptical orbit, the sum of the distances from the planet to each focus is?

Biology
2 answers:
Nuetrik [128]3 years ago
7 0

When a planet travels in an elliptical orbit, the sum of the distances from the planet to each focus is always the same no matter where the planet is in its orbit.

The correct answer is C.

Your welcome :)

velikii [3]3 years ago
6 0

The CORRECT answer is (C)


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Based on the data in Table 1, identify the animal that has the greatest number of sequence differences from the reference animal
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Answer:

( please like and hope it helps)

A) Elephas-2 has 13 sequence differences from the reference animal, and this is the greatest number of animals in the table.

B) From left to right, the order at the tips of the cladogram is: Dugong , Elephas , Loxodonta , Mammathus.

(Loxodonta and Mammuthus can also be reversed)

C) The molecular data, such as that for are widely conserved protein such as cytochrome b , show conserved similarities between organisms such as to dugongs and proboscideans and can be used to support the existence of this relationship.

D) The animals that are related ones had a common assister with certain genetic characteristics. Adaptation to different habitats leads to diversification of morphology but does not change evolutionary relationships.

4 0
3 years ago
Any ideas? thanks for the help!
sveticcg [70]

Answer:

pretty sure its c

Explanation:

dont forget to five-star and heart! :)

8 0
3 years ago
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When you are exposed to sun light for a long time your skin which otherwise appears normal gets heavily tanned what could be the
vovangra [49]
"<span>The genes for melanin pigmentation remain turned on and prepare more melanin than usual to protect the skin from photo-damage when it is exposed to sunlight for long time" is the actual reason. </span>
5 0
3 years ago
If acetyl-CoA is labeled with 14C at its methyl group, how many rounds of the cycle are required before 14CO2 is released?
Elis [28]

Answer:

14 CO₂ will be released in the second turn of the cycle

Explanation:

<u>Complete question goes like this</u>, "<em>The CO2 produced in one round of the citric acid cycle does not originate in the acetyl carbons that entered that round. If acetyl-CoA is labeled with 14C at the carbonyl carbon, how many rounds of the cycle are required before 14CO2 is released?</em>"

<u>The answer to this is</u>;

  • The labeled Acetyl of Acetyl-CoA becomes the terminal carbon (C4) of succinyl-CoA (which becomes succinate that is a symmetrical four carbon diprotic dicarboxylic acid from alpha-ketoglutarate).
  • Succinate converts into fumarate. Fumarate converts into malate, and malate converts into oxaloacetate. Because succinate is symmetrical, the oxaloacetate can have the label at C1 or C4.
  • When these condense with acetyl-CoA to begin the second round of the cycle, both of these carbons are discharged as CO2 during the isocitrate dehydrogenase and alpha-ketoglutarate dehydrogenase reactions (formation of alpha-ketoglutarate and succinyl-CoA respectively).

Hence, 14 CO₂ will be released in the second turn of the cycle.

3 0
3 years ago
Proteins in the cell membrane have many functions. Which type of protein would be used primarily to transport materials in or ou
S_A_V [24]

So we know that to transport materials in or out of the cell, we need to have access to both the inside and outside of the cell. This would require that the protein be a transmembrane protein that reaches both the inside and the outside of the cell.

So in this case, let's look at pore proteins. These are proteins that cross a membrane and act as a pore for the materials that need to cross the membrane.

One example of a pore protein is an aquaporin. These proteins aid in the transport of water into or out of a cell.

Therefore, the answer to your question is: A) Pore proteins.

8 0
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