So These are science questions i need help im offering 60 points

2 answers:

7 0

#1 the relationship between universes and galaxies is that galaxies are made up of universe. and the relationship between stars and solar systems is every solar system contains at least one star.

#2. galaxies form after several planets form rather close to each other.

#3. the last one I don't know

victus00 [196]3 years ago

3 0

Our Solar System consists of our star, the Sun, and its orbiting planets (including Earth), along with numerous moons, asteroids, comet material, rocks, and dust. Our Sun is just one star among the hundreds of billions of stars in our Milky Way Galaxy. If we shrink the Sun down to smaller than a grain of sand, we can imagine our Solar System to be small enough to fit onto the palm of your hand. Pluto would orbit about an inch from the middle of your palm.

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Which cell organelle is responsible for converting food to energy for the cell

Alexandra [31]

Answer:

Mitochondria

Explanation:

its the powerhouse of the cell ;)

just messing with you. But in reality, the mitochondria converts food to energy in the cell.

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3 years ago

Describe natural selection- when does natural selection occur?

sashaice [31]

Answer:

The process whereby organisms better adapted to their environment tend to survive and produce more offspring. The theory of its action was first fully expounded by Charles Darwin, and it is now regarded as be the main process that brings about evolution.

Four conditions are needed for natural selection to occur: reproduction, heredity, variation in fitness or organisms, variation in individual characters among members of the population. If they are met, natural selection automatically results.

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A) In how many cases in the genetic code would you fail to know the amino acid specified by a codon if you knew only the first t

Vesna [10]

Answer:

a) 28 cases

b) 3 cases

Explanation:

a) From the table of genetic codes, there are 28 codons that specify more than one amino acid assuming only the first two nucleotides are considered. In these cases, one cannot outrightly specify the amino acid the genetic codes are coding for without knowing the last nucleotide of the codes. For example, UU can be for Phenylalanine or Leucine, CA can be for Histidine or Glutamine, etc.

b) From the table of genetic codes, the first two nucleotides of Arginine can be either of CG or AG, that of Serine can be either of UC or AG while that Leucine can be either of CU or UU. Only in these 3 cases would one fail to know which are the first two nucleotides assuming the name of the amino acids are given.

See the attached image for the genetic code.

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3 years ago

The closest relatives of the familiar pine and spruce trees are _____.

GenaCL600 [577]

I had to look for the options and here is my answer.

The GINGKOS, GNETOPHYTES and CYCADS are the closest relatives of the familiar pine and spruce trees. These plants are coniferous and belong to the plant family Pinaceae. They are coniferous in a way that they produce hanging cones and have needle shaped leaves.

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The main reason that is important to test only one variable at a time so that

Anna11 [10]

Is this a multiple choice question or...??

If not, I'd say, that its simple as scientists can easily decipher which variable caused the situations result. And thats because you may have one manipulated variable to be able to know the responding variable.

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3 years ago