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Andru [333]
3 years ago
8

How long have scientists understood the role of DNA in heredity

Biology
1 answer:
exis [7]3 years ago
6 0

Answer:

The discovery of DNA occurred in 1869 by Swiss-born biochemist Fredrich Miescher, it took more than 80 years for its importance to be fully realized. The experiments reported in Oswald Avery and his colleagues' landmark paper of 1944 provided convincing proof that DNA was the hereditary material.

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HELP *20 POINTS* <br> 8th grade science
Komok [63]

Answer:

pyroclastic flow is a fast moving current of hot gas and volcanic matter that flows along the ground away from a volcano at high velocities.

Hotspot is volcanic regions thought to be fed by underlying mantle that is anomalously hot compared with the surrounding mantle

caldera-a large volcanic crater, especially one formed by a major eruption leading to the collapse of the mouth of the volcano.

tephra-rock fragments and particles ejected by a volcanic eruption

epicenter-the central point of something, typically a difficult or unpleasant situation

fault-an extended break in a body of rock, marked by the relative displacement and discontinuity of strata on either side of a particular surface

surface waves- mechanical wave that propagates along the interface between differing media

body waves-A body wave is a seismic wave that moves through the interior of the earth, as opposed to surface waves that travel near the earth's surface. P and S waves are body waves.

sorry if this doesnt help

3 0
3 years ago
In a controlled experiment, the variable that is changed to test the hypothesis is called the:
xxTIMURxx [149]

B, the independent variable because this is the one that is purposefully changed in an experiment to test the hypothesis.

7 0
3 years ago
The adrenal glands produce _________, a class of chemicals that includes the neurotransmitters dopamine, norepinephrine, and epi
statuscvo [17]
The adrenal glands produce hormones...
8 0
2 years ago
A ______ food chain is one that includes a primary producer at the lowest trophic level and a herbivorous primary consumer at th
pentagon [3]

Answer:

The grazing food chain

Explanation:

There are two kinds of food chains one starting with autotrophs, the grazing food chain, and the other starting with dead organic matter, the detrital food chain.

4 0
2 years ago
What part of the frog does chytridiomycosis attack?
BigorU [14]
Various clinical signs are seen by individuals affected by the disease. A number of options are possible for controlling this disease-causing fungus, though none has proved to be feasible on a large scale. The disease has been proposed as a contributing factor to a global decline in amphibian populations that apparently has affected about 30% of the amphibian species of the world.<span>[3]</span>
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3 years ago
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