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LenKa [72]
2 years ago
11

Classify as man-made or natural extinction: Global Cooling during ice ages

Biology
1 answer:
Sliva [168]2 years ago
7 0

Answer:

B is the answer I guess for the question

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Assume a table in a room has a temperature of 60 degrees. Then the heat is turned up to 80 degrees. The molecules in the table g
Lapatulllka [165]

Answer/Explanation:

B.

4 0
3 years ago
Read 2 more answers
In a plant species, you notice that purple and yellow leaf colors, as well as hairy and smooth stems segregate independently. Yo
Reptile [31]

Answer:

The required answer is given below:

Explanation:

a) Assuming C is the gene for leaf color and S is the gene for the stem type.

then, the genotypes for each parent would be-

Yellow leaves, hairy stem parent: ccSs

Purple leaves, hairy stem parent: CcSs

b) Expected ratios of the progeny as below:

68 yellow leaves, hairy stems: 3/8

66 purple leaves, hairy stems: 3/8

22 purple leaves, smooth stems: 1/8

25 yellow leaves, smooth stems: 1/8

Hence, the ratio is - 3:3:1:1

It might possible that  independently assorting single gene pairs could control traits, and that one of the alleles in each pair is dominant.

c) The general formula for calculating X2:

X2 =  the sum of (O - E)2/E,

(where O = observed number)

(E = expected number)

So,

(68 – 68)2 /68 + (66 – 68)2/68 + (22 – 23)2 /23 + (25 – 23)2/23

= 0.276

X2 = 0.276

The chi-square statistic too small, Hence the hypothesis is acceptable.

5 0
3 years ago
If a branch bearing sweet seedless oranges is grafted to a branch of an orange tree bearing sour seeded oranges, what type of or
34kurt

Answer:

i would say natural because the branches grafted together they weren't made to go together by a human

Explanation:

3 0
2 years ago
Explain the principle of chemiosmosis.
skelet666 [1.2K]
<span>Chemiosmosis is the movement of ions across a selectively permeable membrane, down their electrochemical gradient. More specifically, it relates to the generation of ATP by the movement of hydrogen ions across a membrane during cellular respiration or photosynthesis.</span>
3 0
3 years ago
Which statement is true?
astraxan [27]

Answer:

D. gene expression and protein synthesis can be considered the same thing

Explanation:

:)

7 0
2 years ago
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