Answer:
la selección natural es el mecanismo principal por el cual la evolución ocurre
Explanation:
Charles Darwin fue un naturalista inglés que propuso la teoría de la evolución o 'descendencia con modificación' mediante el mecanismo de selección natural. Acorde a esta teoría, la selección natural se define como el mecanismo selectivo de reproducción diferencial de los individuos mejor adaptados a su ambiente. La variabilidad es el la materia prima sobre la cual la selección natural actúa, seleccionado aquellos individuos que presentan combinaciones fenotípicas y genotípicas más adaptadas para sobrevivir en un ambiente en particular. Los individuos de una población que son 'superiores adaptativamente' poseen más chances de sobrevivir y reproducirse, y por lo tanto tienen también más probabilidades de transmitir sus genes a la siguiente generación.
Which mammal does not give live birth whale sea cow duck-billed platypus kangaroo dog
Answer:
Duck-billed platypus
Explanation:
The duck-billed platypus is the only mammal that lays eggs.
Why must you consume carbohydrates in the foods you eat? How does this relate to cellular respiration?
Which of the following contain stem cells that produce most types of blood cells?
Bone Marrow
O Muscle cells
O Bile
O Plasma
HELP PLEASE I WILL GIVE BRAINLIEST
Explanation:
A is the correct answer in my opinion. Thanks.
amoeba sisters: video recap - viruses
answer key?
OK
wait do you have quizlet?
Why are archaea in a different domain from bacteria?
A. They are multicellular, but bacteria are unicellular.
B. They are thought to have separate paths of evolutionary
development
C. They are able to perform endosymbiosis, but bacteria are not.
D. They have no similar characteristics.
Answer:B
Explanation:
Archaea is in a different domain from bacteria because they are thought to have separate paths of evolutionary development. Therefore, the correct statement is option B.
What are the differences between archaea and bacteria domains?Archaea and bacteria are both prokaryotic organisms, but archaea are more closely related to eukaryotes than bacteria. Archaea have unique lipid membrane and cell wall components that are different in composition than those found in bacteria.
These differences suggest that archaea and bacteria evolved to have separate paths of evolutionary development early in the history of life on Earth and then classified into Archaea and Bacteria domains.
Based on the phylogenetic tree constructed by researchers, the tree has classified life into three domains which are Archaea, Bacteria, and Eukarya These domains are based on their fundamental genetic and biochemical differences.
Therefore, archaea and bacteria are in a different domain because they followed separate paths of evolutionary development.
Learn more about the archaea domain here:
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The weight of astronaut on the moon will be
A) Less because the moon has less mass
B) Less because the moon has more mass
C) More because the moon has less mass
D) More because the moon has more mass
Answer:
A
Explanation:
The gravity of a body increases with its size. The moon is smaller than the Earth, so an astronaut will weigh less on the moon than they will on Earth. Good luck ^^
Explanation:
A because im big brain
1. The passage above describes the interactions of several ecosystems, what is the overall theme of the
entire article? "UNDERLINE the sentence that serves as the topic sentence or thesis for the article.
a) to compare the food chains of each ecosystem
b) to convince the reader to protect the environment
c) to explain what keystone species are important in each ecosystem
Answer: to explain what keystone species are important in each ecosystem
Explanation:
The overall theme of the article is to explain what keystone species are important in each ecosystem.
Keystone species is referred to as an organism that defines the ecosystem as a whole. They help define the habitat's biodiversity.
It should be noted that despite the fact that every living organisms depends on each other, some species are more vital than others and when they're removed, there will be a drastic change in the habitat.
how does a competition between animals help create a healthy forest?
Answer:
Making modifications to increase their chances of survival and reproduction.
Explanation:
hope this helps:)
If a scientist found a beaker of a substance in a lab, which of the following would the scientist most likely use to identify the substance?
A. taste, smell, touch and sound
B. Melting point, ability to burn, boiling point and density
C. Poking, prodding, pouring and partaking
D. Research on Wikipedia
Respiratory system, circulatory system, what stuck, digestive system, and how do they work together?
Which of the following distinguishes the relationship between a taxon and taxonomy?
A taxon is an anomaly in the classification system known as taxonomy.
B taxon is a level of the classification system known as taxonomy.
C taxon is a specific trait in the classification system known as taxonomy.
D taxon is an unknown factor in the classification system known as taxonomy.
Answer:
B taxon is a level of the classification system known as taxonomy.
Hope this helps!
ASAP!!
Write any 3 ways to protect the crop from disease and insects!!
No links!!!
No spams!!
What is the relationship between the rock cycle and the plate tectonics?
Answer: The metamorphic rocks can erode into sedimentary rocks which can turn into igneous rock. Metamorphic rocks in the rock cycle is driven by tectonic plates.
Explanation:
The picture shown below is from the aftermath of an earthquake. Describe what has happened.
Use the drop-down menus to label the organelles in the picture to the right.
The organelles of a plant cell are labeled. Part A is a large hollow structure. Part B is the outside layer of the cell. Part C is a green leaf-shaped structure. Part D is a bean-shaped structure with folding inside.
Label A
✔ Vacuole
Label B
✔ Cell wall
Label C
✔ Chloroplast
Label D
✔ Mitochondria
Answers from Edge ;)
Answer:
Label A
✔ Vacuole
Label B
✔ Cell wall
Label C
✔ Chloroplast
Label D
✔ Mitochondria
Explanation:
Can someone please help me on this plz I beg u :(
Answer:
Coleoptera is correct! Hope this helps.
1Which of the following animals is a primary consumer?
Which organisms are secondary consumers in this food web? Select all that apply
Rockskipper, Pufferfish and Peacock Flounder are secondary consumers in this food web. So, the correct options are A, B and C.
What is Food web?A food web is a diagram that shows what is eaten with what in an ecological context and how food chains naturally connect to one another. Consumer-resource system is another term for the food web.
A food web is a comprehensive account of the species that make up an ecosystem and their interactions with one another. It demonstrates how energy is moved along food chains that are connected to other food chains.
After primary consumers, who are primarily herbivores, are omnivores, carnivores, and secondary and tertiary consumers. The apex predators are those animals that have no other predators save humans. They are at the highest point in the food chain.
Therefore, the correct options are A, B and C.
Learn more about Food web, here:
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Suggest reasons for the color patterns of the frog and its lack of color on the ventral surface.
Answer:
To save itself.
Explanation:
The color patterns of the frog and its lack of color on the ventral surface allows the frog to protect itself from their predators because the frog changes its colour and the predators are unable to see them. The color patterns of frogs and their lack of color on the ventral surface allow frogs to escape from their predators. If the frog does not change its colour, the predators will see them and the frog will be catch by its predators and feed on them so this is the reason that frog changes colour or the presence of colour patterns.
What is the purpose of rRNA?
A. to retrieve amino acids
B. to be a working copy of DNA
C. to assemble proteins
D. to replicate the genetic code in mitosis
Answer:
A
Explanation:
The primary function of rRNA is in protein synthesis – in binding to messenger RNA and transfer RNA to ensure that the codon sequence of the mRNA is translated accurately into amino acid sequence in proteins.
What type of cells are produced in Meiosis?
What type of cells are produced in Mitosis?
What do ginsenosides do to muscles
Answer:
Panax ginseng (Chinese or Korean ginseng) has been shown to have similar properties under certain circumstances. McNaughton et al., 1989 noted increases in pectoral strength, quadriceps strength, and post-exercise recovery following dietary supplementation with ginseng root powder.
Explanation:
Is this person male or female? Why? :l
Answer:
I think Female because hey aren't any Y chromosomes
hope this helps
have a good day :)
Explanation:
I NEEEDDD HELP PLEASE
Pleas e Brainlyiest if you answer
Answer:
B
Explanation:
Answer:
The second option (i think)
Explanation:
Chromosomes are the things that make organisms what they are. They carry all of the information used to help a cell grow, thrive, and reproduce. Chromosomes are made up of DNA. Segments of DNA in specific patterns are called genes.
Describe the role of (A) bacteria fixing nitrogen as they live symbiotically with some plant species, (B) nitrifying bacteria, and (C) denitrifying bacteria in the nitrogen cycle.
I think It is A what is the question?
Explanation:
What fossil is evidence that animals moved from living in the water to dry land? If u could help thanks!
Answer:
Tiktaalik roseae
Explanation:
The discovery of the fossil, Tiktaalik roseae on a Canadian island gives credence to the fact that animals moved from living in water to living on dry land. This fish which has feature of land animals such as a neck, skull, and ribs is believed to have lived some 375 million years ago. It also has features of fish such as the fins and scales.
The discovery of this fossil is important to scientists because it confirmed their believe that there should be an organism that would prove that life transitioned from water to land. The fossil was discovered in the year 2004.
How does acid rain (deposition) form and travel to effect the environment?
Answer:
The ecological effects of acid rain are most clearly seen in aquatic environments, such as streams, lakes, and marshes where it can be harmful to fish and other wildlife. As it flows through the soil, acidic rain water can leach aluminum from soil clay particles and then flow into streams and lakes.
Explanation:
Why does an atom have a neutral charge?
A. It has equal numbers of electrons and neutrons.
B. The number of neutrons equals the number of protons and
electrons in the atom.
C. It has equal numbers of electrons and protons.
D. It has equal numbers of neutrons and protons.
ITS C