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Lady bird [3.3K]
2 years ago
12

Energy is obtained from the?

Biology
1 answer:
Aneli [31]2 years ago
6 0
Cells get energy from food molecules or sunlight
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Semmy [17]
3.is the answer digpsbeoajclws
7 0
3 years ago
Read 2 more answers
Draw the phases of mitosis of a cell that contains four chromosomes as its diploid or 2n number
anastassius [24]

Answer:

Please find the diagram attached and explanation below.

Explanation:

Mitosis is a type of cell division that forms two genetically identical cells. It involves four stages viz; prophase, metaphase, anaphase, and telophase.

Considering a diploid (2n) cell with four (4) number of chromosomes.

Prophase- four duplicated chromosomes condense and pair up.

Metaphase- four chromosomes line up at the cell plate or equator in order to get separated.

Anaphase- the sister chromatids are pulled apart by the spindle microtubules

Telophase: the chromosomes recoil and organelles form at opposite poles of the cell.

At the end of cytokinesis, which is division of the cytoplasm, four chromatids are present in each daughter cell. The chromatids becomes individual chromosomes that retain the diploid (2n) chromosome number of four.

5 0
3 years ago
How could You decide whether an unknown cell was an animal cell, a plant cell, or a bacterial cell? Answer it correctly please !
stellarik [79]

Answer:

animal cell has no cell wall, plant cell has chloroplast and bacteria has no nucleus

Explanation:

3 0
3 years ago
Which of the following is the correct base pairing
const2013 [10]

Answer: The photo is correct

Explanation:A binds to T and G binds to C

8 0
4 years ago
The death rate per 100,000 for lung cancer is 7 among non-smokers and 71 among smokers. The death rate per 100,000 for coronary
victus00 [196]

Answer:

A) 0.83 for lung cancer and 0.18 for coronary thrombosis.

Explanation:

For the population etiologic fraction due to smoking, we use the formula:

= \frac{P_s(RR_s-1)}{(1+P_s(RR_s-1))}

For lung cancer:

Given:

P_s = 55percent = 0.55

We first find RRs which is the relative risk of dying from cancer for a smoker compared to a non smoker.

RR_s = \frac{num of smokers death}{num of non-smokers death}

= \frac{71}{7}

= 10.1429

Therefore population etiologic fraction due to cancer wil be:

\frac{0.55(10.1429-1)}{1+0.55(10.1429-1)}

= \frac{5.029}{6.029}

= 0.8341

Population etiologic fraction of cancer due to smoking is 0.834

•For coronary thrombosis:

Let's use the formula:

\frac{P_s}{RR_s-1}{1-P_s(RR_s-1}

Let's first find the RRs (relative risk of dying from cornary thrombosis for a smoker compared to a non smoker)

= \frac{599}{422}

RR_s = 1.4194

The population etiologic fraction of cornary thrombosis due to smoking, will be:

= \frac{0.55(1.4194-1)}{1+0.55(1.4194-1)}

= \frac{0.231}{1.231}

= 0.187

The population etiologic fraction of cornary thrombosis due to smoking is 0.187

Therefore the answer is option (A) 0.83 for lung cancer and 0.18 for coronary thrombosis

3 0
3 years ago
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