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Anni [7]
2 years ago
12

PLS HELP ME! WILL GIVE BRAINLIEST :(

Biology
1 answer:
Elena-2011 [213]2 years ago
8 0
To find the speed of waves, use this formula!

V = frequency x wavelength
(V is a unit for speed)

Plug in your numbers!

V = 3.7 x 8.4
V = 31.08 m/s

*m/s is meters per second.
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Peanuts seedlings were grown under identical conditions. What factor could account for differences in height among the seedlings
Scorpion4ik [409]
The position of the seedlings from the Sun and the gibberling
7 0
3 years ago
After performing a gram stain of a mixed culture of gram positive and gram negative cells, you shout: "oops, i forgot the iodine
zalisa [80]

Gram's staining is a differential staining technique that employs a primary stain like crystal violet and a counter stain like safranin along with the decolourizing agent alcohol and a mordant called the Gram's iodine.

Iodine is a mordant added after the primary stain. It fixes the stain by combining with it to enchance the staining ability. This forms an insoluble crystal violet iodine complex appearing purple under the microscope. These microorganisms are classified as Gram positive.

If addition of iodine is skipped, crystal violet is not fixed on the slide and the insoluble complex is not formed. The cells are decolourized by alcohol and are stained by the counter stain safranin making the Gram positive cells wrongly indentified as Gram negative due to its pink colouration. Thus, the slide will show all the cells as pink coloured Gram negative cells.

3 0
3 years ago
Do bacteria cells have mitochondria? If yes or No justify your answer. Especially if your
Mashcka [7]
No they don’t, but to be able to have cellular respiration it can perform aerobic cellular respiration. These cells will move electrons back and forth across their cell membrane. Other types of prokaryotes cannot use oxygen to perform cellular respiration, so they perform anaerobic respiration.
8 0
2 years ago
archaeans differ from eukaryotes and bacteria in that Choose one: A. archaeal membranes use ester links to bond glycerol to side
Nady [450]

Answer:

D. archaeal membranes contain L-glycerol.

Explanation:

Archaea and eubacteria differ from each other with respect to the nature of membrane lipids. Lipids present in the membranes of the archaeans have the hydrocarbons derived from isoprene units. These hydrocarbons are branched and are attached to the glycerol with help of ether linkage. Ester linkages are present in eubacteria. The glycerol present in the archaeans is L- glycerol. Bacterial membranes have D-glycerol present in their lipids.

3 0
3 years ago
Why don't ligers disrup the definition of a species?
kaheart [24]

Answer:

because there not made in the wild.

Explanatioe:

6 0
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