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iren2701 [21]
3 years ago
13

Why penguins have dark plumage.​

Biology
1 answer:
Vesna [10]3 years ago
7 0
The dark plumage help them keep warm by absorbing energy from the sun
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Why do cells stay small
Dafna1 [17]
Ans: Cells are so small because it allows them to have a better surface area to volume ratio. This makes it much easier for the cell to bring in necessary nutreints and excrete wastes. Also the smaller the cell is, the less time it takes to replicate the small cell as opposed to a bigger cell.
6 0
3 years ago
What accounts for the diversity of cell types and functions in humans relative to simpler animals, despite not having significan
IrinaK [193]

Answer:

The correct answer are options a, b and d.

Explanation:

The diversity of the types of cells and the functions in humans in comparison to simple animals can be accounted for various reasons. Some of them are as follows:  

a. The genes in eukaryotes like in humans encode for various multiple proteins.  

b. Differential gene expression results in complexity.  

c. Complexity also originates due to the distinct combination of proteins.  

6 0
4 years ago
In a certain species of plant, the allele to produce green melons (G) is dominant over the allele to produce yellow melons (g).
marishachu [46]

Answer:

4.26

Explanation:

Let the green-melon parents be Gg, then we expect the cross with the yellow-melon plant gg so as to produce 50% Gg and other 50% of gg offspring. What we observed was that 53 green and a 41 yellow. Based on the total number of 94 offspring , we expected half and a half ratios to be 47 of each color.

                                Observed(o)   Expected(e)   (o-e)    $(o-e)^2$      $(o-e)^2/e$

Green-melon plant        53                    47               6          36             0.766

Yellow-melon plant        41                    47              -6          36             0.766

Therefore the chi-square value is 1.53 which is less than the critical value of 3.84. Therefore, the null hypothesis is accepted.

4 0
3 years ago
What is the next step in the scientific method following stating a question
Sliva [168]

✧・゚: *✧・゚:*    *:・゚✧*:・゚✧

                  Hello!

✧・゚: *✧・゚:*    *:・゚✧*:・゚✧

❖ After stating a question, you form a hypothesis.

~ ʜᴏᴘᴇ ᴛʜɪꜱ ʜᴇʟᴘꜱ! :) ♡

~ ᴄʟᴏᴜᴛᴀɴꜱᴡᴇʀꜱ

4 0
4 years ago
Read 2 more answers
Your skin is constantly producing new cells through cell division. How does this happen? During interphase, how does a cell prep
Nina [5.8K]
<span>Interphase is the phase in the cell cycle during which cells that will undergo mitosis prepare for division. In interphase, DNA of the cell copies</span>. After that cell undergoes mitosis, which is the phase of the cell cycle during which cell divides on two identical. Mitosis consists of four phases:
1. Prophase: Chromatin in the nucleus condenses and chromosomes pair up
2. Metaphase: Chromosomes line up at the centre of the cell.
3. Anaphase: The sister chromatids separate from each other to the opposite sides of the cells.
4. Telophase and Cytokinesis: Membrane forms around each set of chromosomes on two opposite sides of the cells and cell divides into two identical daughter cells.
5 0
3 years ago
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