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Dmitry [639]
4 years ago
12

Cathy conducts a scientific investigation. How can she make sure her results are valid?

Biology
2 answers:
swat324 years ago
7 0
To keep cheking and redoing the investigation taking her notes and making them more valid
Ksivusya [100]4 years ago
3 0
She compares the data with other outcomes of the same experiment and conducts the experiment more than one time without changing anything

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Select the correct answer.
natali 33 [55]
The best answer would probably be observation because a hypothesis and theory is not always reliable. an observation describes what IS happening during the experiment.
4 0
3 years ago
Read 2 more answers
Why are populations, rather than individuals, the units of evolution?
dimulka [17.4K]

Explanation:

The unit of evolution is the population. A population consists of organisms of the same species that live in the same area. In terms of evolution, the population is assumed to be a relatively closed group. This means that most mating takes place within the population.

3 0
3 years ago
Select a hypothesis above that would help restore equilibrium and explain your reasoning.
Mrac [35]

Answer:

analize data and draw a conclusion

8 0
3 years ago
Grafting requires both a scion and a rootstock. true or false​
belka [17]

Answer: true

Explanation: the upper part (scion) of one plant grows on the root system (rootstock) of another plant. In the budding process, a bud is taken from one plant and grown on another.

5 0
3 years ago
Consider the terms egg, sperm, and sporophyte. Which term links egg and sperm directly to sporophyte?
NARA [144]

Answer:

Explanation:

La fecundación es el proceso por el cual dos gametos (masculino y femenino) se fusionan durante la reproducción sexual para crear un cigoto con un genoma derivado de ambos progenitores. Los dos fines principales de la fecundación son la combinación de genes derivados de ambos progenitores y la generación de un cigoto.

En el caso de las plantas con semillas pros, hay que diferenciar el fenómeno de la fecundación propiamente dicho (unión íntima de dos células sexuales hasta confundirse sus núcleos respectivos y, en mayor o menor grado, sus citoplasmas),1​ del proceso biológico que lo antecede: la polinización, en el que los granos de polen, desarrollados en las tecas que contiene cada antera de un estambre (hoja reproductora masculina), son transportados por el viento o los insectos a los estigmas, donde germinan emitiendo un tubo polínico que crece hacia el ovario. En este caso no se trata de gametos, sino de esporas, pues cada grano de polen contiene dos gametos o células reproductoras masculinas

5 0
3 years ago
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