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babunello [35]
3 years ago
9

Which was not developed in the 1800s?

Biology
2 answers:
Whitepunk [10]3 years ago
4 0
Cell Theory is your answer
tankabanditka [31]3 years ago
3 0

Answer:

germ theory

Explanation:

it was founded in the 19th century and founded by a man named Louis pasteur and robert koch who provided the final clue

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Consider the model for natural selection. Describe a scenario that represents this model of natural selection.
Travka [436]

Answer:

The correct answer would be D) In a population of herbivores, a change in the habitat provides leaves that are high up in the trees. The herbivores with longer necks can reach the leaves. They survive and reproduce. The herbivores, over time, have longer necks.

Natural selection is a gradual process which favors the survival and reproduction of organisms which have better adapted to the environment.

Adaptations or traits which favor the survival of the organisms in environment keep on passing from one generation to the next and with time theses traits get inherited in the population.

For example, in the above situation herbivores with short necks die as they could not reach the leaves that were high up in the trees. In contrast, long neck favors the survival of the organisms due to which only organisms with long necks survive and reproduce. With time, only organisms were left that had long necks.

7 0
4 years ago
Read 2 more answers
Describe how you can tell if you have an infectious diseases
Evgesh-ka [11]

Answer:

some signs may include, high fever, coughing, fatigue, muscle aching, and diarrhea.

3 0
4 years ago
Hominids that appeared 230,000 years ago who hunted, made fire, and wore clothes
Mnenie [13.5K]
Your answer will be NEANDERTHAL



hope it helps ^_^
6 0
4 years ago
Which statement best describes the relationship between ocean co2 and ph
aksik [14]
The amount of carbon dioxide in water determines the pH of the water. The more CO2, the lower the pH, and vice versa.
8 0
3 years ago
When looking at graphs showing 800,000 years of past climate data, there is a direct relationship over time between temperature
Inessa05 [86]

When looking at graphs showing 800,000 years of past climate data, there is a direct relationship over time between temperature and the concentration of carbon dioxide in the Earth's atmosphere is a <u>true</u> statement.

Explanation:

Many paleoclimate studies and research done by observing events like glacial cycles etc over the past 800,000 years about climate changes over the past years have proved the strong linear relationship between temperature and carbon dioxide concentration in the Earth’s atmosphere.

These studies clearly reiterate that when the carbon dioxide concentration in the atmosphere increases, the temperature also increases; and when the CO2 concentration decreases, the temperature also decreases. Carbon dioxide also controls the amount of greenhouse gases in the atmosphere by controlling the temperature.

Increased CO2 levels increases temperature which in turn will increase the evaporation of greenhouses gases present in the atmosphere including CO2 from the reservoir; however, the CO2 can stay in the atmosphere for very long time. All of these factors have led to various climate changes globally .

5 0
3 years ago
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