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fgiga [73]
3 years ago
11

How family trees can be used by scientists​

Biology
1 answer:
Ket [755]3 years ago
6 0

Answer:

Using statistics!

Explanation:

If the predecessors had genetically transmitted disease,or specific features,the family tree is useful in identification and better understanding.

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Which of these cancer drugs acts by adding hydrocarbon groups to dna? alkylating agents?
stich3 [128]
The propositions are:
a.alkylating agents
b.antimetabolites
c.topisomerase inhibitors
d.nucleoside analogs
e.<span>AZT

The right answer is A, 
An alkylating agent is a compound capable of adding alkyl groups to various electronegative groups under conditions present within the cells.

Antimetabolites are an anticancer drug but act differently than the alkylating agent. (interfere with folic acid)
Topoisomerase inhibitor acts by inhibiting isomerase, used in antibiotherapy (like quinolones).
Nucleoside analogs are analogs as their name says, it does not alkylate nucleotides.
AZT (</span><span>Zidovudine) is an antiretroviral drug that inhibits reverse transcriptase.</span>
3 0
3 years ago
Please help me, brainlist will be givin.
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Answer: mouth- D, liver- A, salivary glands- B, Stomach- C, Large intestine- E, Intestinal villi-F, Mechanical digestion- G, Small Intestine- H, Gallbladder- I. brainliest?

Explanation:

5 0
3 years ago
One difference between algae and plants is that _____.
Zolol [24]

Answer: plants have roots, stems, or leaves

Algae and plants are similar organisms because both are autotrophic organisms which are able to produce their own food by the process of photosynthesis. The main difference between the two is the level of complexity. Algae are comparatively simple organisms, their structure ranges from single celled to multi-cellular organisms. They do not exhibit true roots, stems and leaves like plants. The plants exhibit complex specialized structure for transport of water, nutrients and to perform reproduction. The smallest to largest plant will exhibit roots, stems and leaves.

5 0
3 years ago
Which of the following is often used to remove poisonous gases from industrial emissions before they are released into the atmos
Alenkinab [10]

Answer:

B.) Scrubbers

Explanation:

Scrubbers are used to remove poisonous gases from industrial emissions before they are released into the atmosphere.

These devices are air pollution control units in industrial power plants that uses liquids to absorb harmful gaseous industrial gases.

  • Some of these gases are carbon monoxide, nitrogen oxides.
  • This atomized liquid removes harmful gases
  • The waste gas is brought into close contact with the liquid.
  • Some of the gases will pass into the liquid.
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3 0
3 years ago
Although the diagnostic criteria for anxiety disorders are consistent for all age groups, older adults typically worry more abou
lesantik [10]

Answer:

health, stressful life transitions, & care-giving responsibilities.

Explanation:

According to my research on senior citizen problems, I can say that based on the information provided within the question older adults typically worry more about matters such as health, stressful life transitions, & care-giving responsibilities. This is because at that age these are primary concerns that need solutions in order to live a good life.

I hope this answered your question. If you have any more questions feel free to ask away at Brainly.

4 0
3 years ago
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