It may have been difficult to discover pond water organisms from pond water sample under the microscope comparing to cheek cell sample and leaf sample because of the large area and involved and the cheek cell and leaf sample being a living tissue.
<h3>What is a Microscope?</h3>
This is referred to as a laboratory equipment which is used in the enlargement of objects and cells and ensures that very small organisms can be seen and observed.
Living cells such as cheek cell and leaf sample are what the organisms mostly feed on which is why it is easy to see and observe them when compared to pond water.
Pond water also has a very large surface area and the sample gotten may not possess any organism which is why it may be difficult and is therefore the reason why it was chosen as the correct choice.
Read more about Pond here brainly.com/question/12876788
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The lithosphere is the most unique in mechanical composition
The statement, which best explain the data is this: THE ZEBRAS HAVE A LOWER POPULATION GROWTH RATE THAN THE LIONS.
From the data given in the question, the population growth rate for lions and zebra can be calculated. The formula for calculating population growth rate is: Population growth rate = [Number of birth - Number of death] + [Number of immigration + Number of emigration]
For lions, we have: Population growth rate = [4 - 3] + [5 - 5] = 1 + 0 = + 1
For zebras, we have: Population growth = [5 - 3] + [1 - 4] = 2 + [-3] = 2 - 3 = - 1.
From the calculation above we can see that, the lions have a higher population growth rate than the zebras.
The answer is almost definitely A seeing as the others are either based on the need to breathe (d) or body parts (b and c). Hope this helped. <span />
Answer:
Explanation:
Mammals reproduce through live birth, while other animals such as reptiles and birds lay eggs where the embryo develops inside the egg. Both mammals and reptiles produce sexually. Most mammals have fur or hair, however, other animals such as reptiles/birds have feathers/scales.
