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mart [117]
2 years ago
11

PLEASE HELP WITH MY BIOLOGY

Biology
1 answer:
Alecsey [184]2 years ago
6 0

I think A makes the most sense..

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A wave has a frequency of 50 Hz and a wavelength of 10 m. What is the speed of the wave?
Bond [772]

Answer:

500 m/s

Explanation:

Velocity (v) = wavelength (λ) x frequency (f)

V = 10 x 50

V = 500 m/s

7 0
2 years ago
Analyze the data about nitrogenous base content of DNA from various species. Percentages of Bases in Five Organisms Source of DN
Troyanec [42]

Answer:

When analyzing data on the nitrogenous base content of the DNA of various species, the claims are supported by the data:

  • <em>In any one species, the amount of adenine closely approximates that of thymine.  </em>
  • <em>In any one species, the amount of guanine closely approximates that of cytosine.  </em>
  • <em>The amounts of A, T, G, and C in DNA varies from species to species. </em>

<em>(options A, B and D)</em>

Explanation:

Organizing the data has to:

<u>Source of DNA      A            T            G            C </u>

Streptococcus    29.8       31.6        20.5       18.0

Yeast                   31.3        32.9       18.7         17.1

Herring                27.8       27.5       22.2       22.6

Human                30.9       29.4       19.9        19.8

E. Coli                  24.7       23.6        26.0      25.7

DNA is the molecule that contains the genetic information of each species, formed by sequences of nitrogenous bases Adenine, Thymine, Cytosine and Guanine.

Since Adenine and Thymine -as well as Cytosine and Guanina- are complementary, the percentage of them will be very similar in each DNA molecule.

The genetic information -which determines the physical and functional characteristics of each organism- is encoded in the DNA and is different for each species, so the percentages of nitrogenous bases vary from species to species.

5 0
3 years ago
___1. The stage during which the chromosomes are replicated / copied is
vagabundo [1.1K]
1) The stage in which chromosomes are multiplied is interphase.
2) Nuclear division? It should be mitosis but since its not there I'm guessing Prophase
3)  sorry.. i forgot :) hope i helped somewhat though

5 0
3 years ago
The water, coral, plants and animals that live in a coral reef is what level of organization
Likurg_2 [28]
The level of organization is plants, coral and water. Water came first.
6 0
3 years ago
Name three organelles or structures found in plant cells but NOT in animal cells. Group of answer choices nucleus chloroplast mi
BARSIC [14]

Answer:

Cell wall, chloroplast, and central vacuole

Explanation:

Cell wall, chloroplast, and central vacuole are present in a plant cell but not in the animal cell.

Nucleus, cell membrane, and cytoplasm present in both plant and animal cells.

6 0
2 years ago
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