How are the mechanisms of evolutionary change supported by evidence

Answers

Answer 1
Answer: The methods of mechanisms of evolutionary change are supported by evidence because evidence such as embryos, biochemical similarities, fossils, and comparitive anatomy show that there could be a close evolutionary relationship between organisms. For instance, organisms that are closely evolutionary may have homologous structures, such as a bird wing and a human hand. Or scientists at study embryos of different organisms and the similarities may tell you if they evoled from a common ancestor. The same thing goes for fossils. Fossils will show differences in shape and size and evidence of natural selection. Furthermore, the more similar the biochemical similarities, DNA and protein sequences, are the more closely related organisms could be. This is how the mechanisms of evolutionary change are supported by evidence. Hope this helps!

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The creature in the photograph is a protist, which is composed of only one cell. This means that a protistA) cannot reproduce.
B) is a living organism.
C) cannot survive in water.
D) gets energy directly from sunlight.

Answers

This means that the protest is a living organism.

Explanation:

It is given that the protest is composed of a single cell. Presence of cells is the distinctive feature of living organisms. This means that all organisms made up of cells are living organisms.

All the basic functions of a living organism are performed by cells which makes the cell the basic unit of every living organism. Cell structure and functions may differ according to the type of organism. Cells contain cell organelles like mitochondria, golgi apparatus etc.

Answer:

The answer to this question would be: B) is a living organism

BRAINLIEST! Which is a reason that protists are difficult to classify?They are too small.
They are all eukaryotes.
They have been classified based on what they are not.
They have too many shared characteristics.

Answers

The reason that protists are difficult to classify is they have been classified based on what they are not. The correct option is C.

What are protists?

Any member of the varied eukaryotic, primarily unicellular group of tiny organisms known as protists. They might exhibit some physical and physiological traits that are shared by both plants and animals.

The four phyla that make up the Protozoa are flagellates, ciliates, spore-forming protists, and protists that resemble amoebas.

Protists have eukaryotic cells, as opposed to bacteria. These organisms have cytoplasmic membrane-bound components as well as a nucleus that is membrane-bound. The broad class of organisms known as protozoa includes those that resemble fungi, animals, or plants.

Therefore, the correct option is C. They have been classified based on what they are not.

To learn more about protists, refer to the link:

brainly.com/question/1626285

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Answer:

They have been classified based on what they are not.

Explanation:

i just took the test

What role does blood play before cellular respiration can occur?

Answers

Answer: Blood plays a very important role before cellular respiration. The blood provides oxygenated blood for the aerobic processes that takes place during cellular respiration. Glycolysis, link reaction, Kreb's Cycle and Electron Transport Chain are all the aerobic process of Cellular respiration that requires oxygen. Without blood aerobic cellular respiration cannot occur as the source of oxygen is blood. The blood provides oxygen before cellular respiration. After cellular respiration the waste materials are carried away by blood only.

Hence, blood plays an important role before cellular respiration.


Blood carries the oxygen through out the body and gets re-oxygenated to keep the body going.

Clams and oysters are examples of intertebrates. Which structure in these animals help protect their inner body parts? A. Shell
B. Backbone
C. Gills
D. Muscles

Answers

The shell

They use it to protect their muscles from predators and support soft tissues found on the inside.

A the shell helps protect

What is cell organelle?

Answers

Answer:

An organelle is a tiny cellular structure that performs specific functions within a cell. Organelles are embedded within the cytoplasm of eukaryotic and prokaryotic cells. In the more complex eukaryotic cells, organelles are often enclosed by their own membrane. It has a particular structural makeup and performs a specific function. Some organelles are bounded by a single membrane. For example, vacuole, lysosome, Golgi Apparatus, Endoplasmic Reticulum etc.

Explanation:

Hope this helps!!

Answer:

it's a structure of distinctive morphology and function, includes nucleus, mitochondria, plastids, vacuoles, vesicles, ribosomes, and the cytoskeleton

when a grasshopper eats grass only some of the energy from the grass is stored in the Grasshoppers body how does the grasshopper use the rest of the energy

Answers

Answer:

The rest of the energy from grasshopper will be transferred to the next trophic level in the food chain with in the ecosystem.

Explanation:

All the organisms with in an ecosystem are part of some food chain. Hence when ever an organism feed upon some other organism/plant to get energy , retains some part of it and  transfers the rest of energy to the next trophic level.

Usually in a food  chain, all organisms retain 10% of the energy they get from the preceding trophic level and transfers 90% of the energy to the next trophic level.

Thus, whichever organism feed on grasshopper or depend for food on grasshopper in some or the other way will get the rest of the energy.

Energy must constantly flow through an ecosystem for the system to remain stable. it means that organisms must eat other organisms