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pychu [463]
3 years ago
11

Darwin hypothesized that new species could appear gradually through small changes in an ancestral species. Which

Biology
2 answers:
Vera_Pavlovna [14]3 years ago
6 0
Different beak shapes of the different species on the different islands, because of the different types of food they had to adapt to too eat. Hope this helps!
andrezito [222]3 years ago
4 0

Answer:

c

Explanation:

The finches all appeared to be related but differed from the mainland population.

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List two pro and cons of genetic engineering
eimsori [14]
Pros: Might someday cure disease, might someday increase crop yeild, might create things that can be of our use. 

Cons: Genetic engineering could cause food allergies, have bad side affects, it could kill animals over time. 

I hope this helps. 
3 0
3 years ago
As described in "A Note About Bacterial Reproduction -- and the "Culture Bias,"" the organism Epulopiscium does not divide by bi
gayaneshka [121]

In liquid media or broth difference between dry and wet will give biomass of the Epulopiscium.

Explanation:

Biomass of bacteria can be measured by dry or wet mass. Bacteria numbers can be counted by spread plate method under the microscope.

In solid media the colonies obtained are diluted and number of cells will be seen by plate count method or on automated cell counter. The number would help calculate biomass

The biomass will be calculated by measuring wet and dry mass. Equipments required will be:

hydraulic gravity convection oven and centrifugation set up.

A cellulose acetate filter membrane is used which is 47 mm in diameter and 0.45 micron of pore size.

The cells  grown settles down due to gravity. They are stirred to evenly spread in the broth and is kept in centrifuge.

The cells obtained after centrifugation will be taken and wet weight is obtained.

To obtain dry weight the cells are placed in oven for 6 hours to 24 hours. The resultant cells are weighed and dry weight obtained.

Biomass will be calculated by subtracting the wet mass to dry mass. This way biomass is obtained in epulopisicuium. Here the cells will be of different size so on centrifugation 2 or more phases of cells can be seen due to gravity change.

8 0
3 years ago
Assess Your Understanding
zysi [14]
Answer:
Net force=120N-90N=30N
30N to the right
6 0
3 years ago
Peas have two traits that are passed down
natulia [17]

Answer:c

Explanation:

6 0
3 years ago
Serological testing is based on the fact that: Select one:
mihalych1998 [28]

Answer:

B. Antibodies react specifically with an antigen.

Explanation:

Serological tests are blood tests that look for antibodies in your blood. They can involve a number of laboratory techniques. Flucculation tests are based on the precipitation that takes place when antibody and specially prepared antigens are mixed together

7 0
2 years ago
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