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lukranit [14]
2 years ago
5

Animals with bilateral symmetry___

Biology
1 answer:
ikadub [295]2 years ago
5 0
Animals with bilateral symmetry have a distinct head end
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During a drought on the galapagos islands, finches with larger beaks were able to crack the large tough seeds produced by plants
TEA [102]

It is an example of directional selection.

The different kinds of natural selection can influence the distribution of phenotypes within a population. In stabilizing selection, an average phenotype is preferred.

In directional selection, a modification in the surrounding changes the spectrum of the observed phenotypes, and in diversifying selection the extreme values for a trait are preferred over the transitional values. This kind of selection usually pushes speciation.

The directional selection, in the field of population genetics, refers to a mode of natural selection in which an extreme phenotype is preferred over other phenotypes, making the allele frequency to change with time in the orientation of that phenotype.

3 0
3 years ago
4. What is the difference between biosphere and ecosystem?
aalyn [17]
The biosphere is everything that makes up life like plants and animals for instance but ecosystem is all the living and nonliving factors that affect the area hope this helps

5 0
3 years ago
Read 2 more answers
What are the keys to a strong lab procedure?​
Natali5045456 [20]

Answer:

Purpose: A brief description of why the experiment is being performed. Include details about the experiment, such as the methods used, a specific chemical reaction(s), and/or anticipated product.

Hypothesis: Provide a statement or two about the anticipated outcome of the experiment.

Experimental Procedure: A step-by-step description of the experiment including the chemicals, equipment, and/or methods used. Complete sentences must be used for the description. DO NOT simply copy the procedure from a lab manual or a handout. Condense the given procedure into steps so that you can understand and follow them.

Laboratory Safety: Give a complete, descriptive listing of the safety precautions, hazards, or other safety procedures that are needed for this experiment.

Experimental Data: Record all data resulting from the experiment in your laboratory notebook. The experimental data should be recorded in tabular form. Do not record your experimental data in your laboratory manual.

Observations: This section is used to record any qualitative observations and notes on the changes to the experimental procedure. Sudden bursts of scientific insight or other information during the experiment that may aid in the interpretation of the data generated are to be entered in this section. No points will be awarded when the observations are recorded outside of the laboratory. It is also important that you record your unknown number in this section of your notebook.

Calculations: Present outcome/summary of data analysis using tables, Excel graphs, and/or figures. List separately all pertinent mathematical equations followed by a sample calculation for each. Use the recorded data from the experiment when performing the calculations.

Results/Discussion: Questions that should be addressed in this section may include: Did the experiment work, and if not, why not? Were the results obtained in the experiment those expected based on the laboratory procedure? If the experiment was to be repeated, what improvements would be made? What types of errors occurred and how could they be corrected? How did the observations play a role in the outcome of the experiment? When applicable, you should compare your experimental value(s) to that of a published, literature value(s), commenting on the accuracy of your technique.

Conclusion: Summarize the findings of the experiment, which must include the final results of the experiment, e.g., the percent yield of a reaction, the identity of an unknown, etc. Look back at the purpose and hypothesis of your experiment and assess whether or not you met your goal in performing the experiment.

References: Include all pertinent information such as, your laboratory manual, textbooks, web sites, and any other library resources used in the preparation of your laboratory report.

7 0
2 years ago
WILL GIVE BRAINLIEST
ser-zykov [4K]
Weather is short term like a storm or snow. Climate is permanent. Like how a states climate is. Take an example Florida is warm that’s climate.
3 0
2 years ago
If cells are placed in a hypertonic solution containing a solute to which the membrane is impermeable, what could happen?
finlep [7]

Answer: A

 The cells would lose water and shrink. In a hypertonic solution, the concentration of solute is higher than water in a cell. With this, there is a net movement of water from inside to outside initiating water to lose from the cytoplasm and vacuole causing the cell to shrink due to osmosis and achieve equilibrium.

This process is applied in food preservation where microbial cells will be dehydrated in a hypertonic environment, making them malfunction and preventing them to cause food spoilage.

5 0
3 years ago
Read 2 more answers
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