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ddd [48]
3 years ago
15

Who first identified DNA?

Biology
2 answers:
Vinil7 [7]3 years ago
8 0

Answer:

Johann Friedrich Miescher

Explanation:

PIT_PIT [208]3 years ago
6 0
Johann Friedrich Miescher, a Swiss chemist in the 1960s
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Living things come from other living things through either sexual or asexual reproduction.
Iteru [2.4K]

Explanation:

Organisms don’t have to only reproduce sexually or only reproduce asexually - some animals do both!

When conditions are good, such organisms will reproduce asexually because it is easier. For example, starfish (by fragmentation), slime molds, and water fleas/daphnia (by parthenogenesis) all reproduce asexually when there is plenty of food, minimal predators, and not too much crowding of individuals of the same species.

When conditions worsen (less food, too many individuals, etc), they may switch to sexual reproduction in order to add genetic variation to their population and ensure survival through difficult times.

brainliest and follow and thanks

7 0
3 years ago
Which of the following is an example of an insect that laps up food?
german
The Colorado potato beetle 
5 0
3 years ago
There are no known motor proteins that move on intermediate filaments (IFs).
Harlamova29_29 [7]

Answer: The correct option is E ( Intermediate filaments are unpolarized).

Explanation:

Intermediate Filaments are usually associated with cells that can withstand mechanical stress which includes claws of animals, hair and makes up the dead remnants of the epidermal cell of the skin. Therefore without the supporting network of intermediate filaments, an epithelium remains intact but the cells are prone to damage by abrasive forces.

Intermediate filaments are so named because they are thicker than actin filaments and thinner than microtubules or muscle myosin filaments

The properties or characteristics of an intermediate filaments that explains the lack of motor proteins is as a result of its subunits which are elongated, not globular and are associated in an anti-polar manner. Therefore, the overall filament has no polarity, and therefore no motor proteins move along intermediate filaments

5 0
3 years ago
How can you tell that matter is conserved in this reaction?
Leona [35]
You can tell if matter is conserved if the substance changes . If the substance changes then matter has been conserved .
8 0
3 years ago
Why do I have an extra 35 chromosmes
ollegr [7]

Any occurence of extra chromosones is due to genetic mutation/disorders.

7 0
4 years ago
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