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miskamm [114]
3 years ago
12

Can y’all please help

Biology
1 answer:
sashaice [31]3 years ago
3 0

Answer:

11) A. The optimum pH of an enzyme is 6.6

12) C. A control group

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Some flowers are pollinated by wind or water. How do you think the petals of these flowers will be different from the petals on
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for self pollination, pollen grains are transferred to the stigma of another plant on the same species while on cross pollination is transferred to the stigma of another plant on a different species of plant.

3 0
3 years ago
Which of the following contains bacteriochlorophyll? A. Bacillus subtilus B. Staphylococcus aureus C. Streptococcus pyogenes D.
N76 [4]

Answer:

E. Chromatium, Thiospirillum, Thidictyon

Explanation:

  • There are some bacteria which are capable of conducting photosynthesis without producing oxygen in the process and bacteriochlorophyll is the main structural unit of the photosynthetic component of such bacteria.
  • Purple a green sulfur bacteria are the ones that contain bacteriochlorophyll.
  • bacteriochlorophyll's function is the same as that of chlorophyll in plants.
  • <em>Chromatium, Thiospirillum, Thidictyon </em>are the bacteria that contain bacteriochlorophyll.
7 0
3 years ago
PLEASE HELP!!! Wil give brain
Ksenya-84 [330]

Answer: Last Option (Affects All)

Reason: People may think it may be the last one because it has the most, but in fact, it affects all. When the population finds mates, and have babies, that increases the population, and over a period of time, with the limited space, it's going to be bad. The last one (C) will fill up the space faster, as there are more mates, meaning territorial problems, and babies. The first one (A) has less population, and will fill up in the most amount of time, but it still has the same process and outcome. I hope this helps. :)

6 0
2 years ago
West Nile virus was identified in the Western Hemisphere during the summer of 1999 and was associated with human, equine, and av
Svetradugi [14.3K]
This virus is acquired by infected mosquitoes.
6 0
3 years ago
Which biomolecule provides the instructions to build enzymes?
Serggg [28]
The correct answer is D. Proteins

Enzymes are biological molecules (proteins) that act as catalysts and help complex reactions occur everywhere in life.

Hope this helps :D
4 0
2 years ago
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