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GenaCL600 [577]
3 years ago
6

Many scientists believe that dinosaurs became extinct due to

Biology
1 answer:
Fiesta28 [93]3 years ago
3 0

Answer:

an asteroid impact

Explanation:

The asteroid that formed a crater located on the edge of the Yucatan peninsula thought to be responsible for the mass extinction of dinosaurs.

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How does the need for resources affect the relationships organisms in an ecosystem?
Anarel [89]

Answer:

The need for resources will make the organisms competitive in their ecosystems.

3 0
3 years ago
14. Brainstorm and write at least 3 potential challenges or important points to consider when conducting the described
Afina-wow [57]

When conducting an experiment, there are different aspects to consider, such as the question that drives to the reseach, the hypothesis, theoretical framework, variables involved -independent, dependent, and controll-, methodology, study groups, data analisys, among others.    

In the exposed example, Pincky is lacking <em>theoretical framework, d</em><em>efining which are the </em><em>study groups, methodology </em><em>to collect data</em><em>, </em><em>and a description of </em><em>data analysis</em>.

---------------------

The scientific method is a research method that consists of systematic observations, measures, experimentation, analysis, and verification of a hypothesis. It is based on two aspects: <em>reproducibility, </em><em>which is the capability of reproducing the experiment in any other place by any researcher</em>, and <em>refutability, </em><em>which is the susceptibility to be refused.</em>

When conducting an experiment, you need to consider,

• Definition and problem statement. The question for which there is not an answer yet.

• Hypothesis formulation. A hypothesis is a scientific conjecture, not verified, that requires corroboration.

• Data collection and analysis. This step involves testing the observations.

• Results

• Verification of hypothesis. This step involves the deriving of the working hypothesis.

• Discussion and Conclusion.

Previous knowledge about the study object is always required for a better understandig.  A question the investigator wants to answer. The main goal of the study, which is basically what the investigator wants to find out. The researcher makes a hypothesis to predict what is going to happen. The experiment is to be performed to answer the question. The conclusions through which the hypothesis might be rejected or accepted.

--------------

So in this experiment there must be,

Theoretical framework, such as information about the species, life stage at which they begin chirping, about external factors that might affect it or benefit it, and etcetera.

The goal: To know how temperature affects cricket´s chirping

Hypothesis: Crickets chirp less frequently under cold temperature than under warm temperature.

Variables: Temperature → Independent

                 Chirp frequency → Dependent

                 Water and food supply, light exposure, refuge → Controlled

Study groups: group of crickets exposed to a warmer temperature

                        group of crickets exposed to a colder temperature

Methodology: Individuals analyzed should be in the same development stage, or at least be sexually mature. Two groups of 10 individuals each should be placed under the same conditions, excepting for temperature. One of the groups should be exposed to warmer temperatures and the other one to lower temperatures. Chirps should be recorded for a week.

Data analysis: Using the chirps records, the frequency can be measured for each group. Results should be compared using different statistical analyses.

Results: Results should be clearly exposed, using texts, charts, and graphs.

Discussion and Conclusion: Hypothesis acceptance or rejection. Discussion about the expected results against the observed ones.

-----------------------------

Related link: brainly.com/question/17645242

3 0
3 years ago
What nursing diagnosis is most likely to apply to a patient who has a dysfunction of the posterior lobe of the pituitary gland?
Serjik [45]

Deficient Fluid Volume is the nursing diagnosis that is most likely to apply to a patient who has a dysfunction of the posterior lobe of the pituitary gland.

The posterior pituitary produces ADH; disruptions in the levels of ADH upset the body's normal fluid balance. The hormones produced by the posterior pituitary do not directly affect immune function, tissue perfusion, or body temp.

Deficient fluid volume, or hypovolemia, results from a loss of body fluid or fluid shift, causing the fluid output to surpass fluid intake. In this process (acute or chronic), the body loses fluid volume and electrolytes. The source for this condition can be gastrointestinal, renal, or even metabolic.

Symptoms:

  • Expresses feeling thirsty
  • Verbalizes feelings of weakness
  • States feeling dizzy/lightheaded, especially when changing position
  • Complains about an inability to focus
  • Complains of headaches
  • Describes feeling of fast heartbeat

Learn more about  Deficient Fluid Volume here : brainly.com/question/27960784

#SPJ4

3 0
2 years ago
Tom Paine plant with red flowers has the genotype TtRr. The plant is crossed with another topic plant with white flowers, having
zlopas [31]

Answer: p=0.125

Explanation:

TtRr x Ttrr —> TTRr, TtRr, TTrr, Ttrr, TtRr, ttRr, Ttrr, ttrr

phe type ttR 1/8

8 0
3 years ago
How many mammal species exist today?
bogdanovich [222]
There are over four thousand different species of mammals that exist today. The largest being the blue whale and the smallest being the hog-nosed bat.
4 0
3 years ago
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