All categories

3 years ago

How do fossils provide evidence that evolution is taking place

2 answers:

8 0

Fossils buried really deep in the Earth and some buried somewhat down would look similar but with certain small changes.

marshall27 [118]3 years ago

8 0

The continents move around and there are similar fossils in different places. There used to be Pangea, but overtime, it became what we know the world as today.

You might be interested in

What is defferenciated cell and and undeferenciated cell.with example

ankoles [38]

Answer:

Differentiated cells refer to the specialized cells in multicellular organisms modified to carry out a particular function, such as transporting a certain substance or executing a specific task, while undifferentiated cells refer to the stem cells capable of giving rise to indefinitely more cells of the same type,.

example of differentiated cell=zygote to embryo then a comlex foetus
example of undifferentiated cell= embryonic stem cell.

<h2>hope it helps</h2><h2>stay safe healthy and happy.</h2>

8 0

3 years ago

What are four factors believed to cause microevolution? How do these four factors relate to macroevolution?

Vilka [71]

Answer:

Four factors believed to cause microevolution are natural selection, mutation, gene drift and gene flow (migration). Many occurrences of these four factors result in macroevolution. 3. The allele frequency of genes in a population that has undergone microevolution slightly change.Explanation:

hope this helps

7 0

3 years ago

Dr. kirch is a psychiatrist and finds that 70% of his patients qualify as having symptoms of sleep disorders, according to the r

DanielleElmas [232]

This study lacks generalizability.
Generalizability is an academic term and describes the process of extending research findings and observations from a study on a sample population to a larger and more diverse population. The larger the sample population, the easier will be to generalize the results to the wider population. In this example, Dr Kirch used a sampling technique called convenience sampling, which involves the selection of the most available and proximate subjects. However, there is sampling bias since the sampling population is not representative of the entire population and therefore the study can not speak for the entire population.

7 0

3 years ago

A bird species in danger of extinction has a population that is decreasing exponentially (Upper A equals Upper A 0 e Superscript

DedPeter [7]

Answer:

After 14 years the population of these birds reached to 300.

Explanation:

The main reason for the extinction or decrease in population of these birds are over hunting or the introduction of invasive species in the ecosystem. Due to over hunting by humans many beneficial species are extinct which causes imbalance in the ecosystem which can't be corrected. These population should be increased by providing a suitable environment to these birds.

3 0

3 years ago

At what point do you feel it is necessary for environmentalists to get involved in creating man-made problems with natural ecolo

oksian1 [2.3K]

Answer: Ecosystem degradation

Definition of terminologies:

1. Natural ecological succession is the gradual change in the species composition and diversity in the ecosystem and the development of ecosystem over a period of time, resulting to stable community.

2. Ecosystem refers to group of plants, animals and other living components functioning in their non-living environment.

3. Ecosystem degradation refers to the depletion of resources in the ecosystem

Explanation:

When there is ecosystem degradation, it is necessary for environmentalists to get involved in creating man-made problems with natural ecological succession and this process is called ecological restoration.

Environmentalists creates man-made problems to either accelerate or reverse the change in the ecosystem.

Degradation comes in different ways (e.g increased soil erosion/flooding, disease outbreak,deforestation, pollution of the ecosystem etc.) and are greatly influenced by climate change.

Environmentalists curb the menace by:

1. Introducing resistant species against disease outbreak;

2. Improved ecosystem service;

3. Buffer zone establishment to resist pollution in any form.

6 0

3 years ago