When two atoms of different elements come in contact, heat is given off and light is produced. Which of the following does this support? A. The law of definite proportions
B. The law of conservation of energy
C. Dalton's atomic theory
D. The law of conservation of matter

Answers

Answer 1
Answer: The correct answer is B. The law of conservation of energy. The energy was in them and when the reaction came the energy was changed form, which is what the law of conservation of energy is, energy can't be created or destroyed, just like matter, it just changes form.
Answer 2
Answer: B. The law of conservation of energy

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One parent has curly hair, the other has straight hair, and their child has wavy hair. This is an example ofA. incomplete dominance. B. polygenic inheritance. C. codominance. D. multiple allele traits.

Which events may cause long-term changes in climate?

Answers

The answer is Changes in the shape of earth orbit. If the earth's orbit put the earth closer to the sun, then the global temperatures of the earth would rise permanently. Conversely, if the orbit change puts the earth further from the sun, then the earth global temperature would drop permanently.

In our ecosystem or current environment, The most scary reason that might happen is the volcanic eruptions. It will cause a long term changes in the climate since when it erupted, together with the lava are many chemicals that mixes with the air.

Which of the following is an example of an endothermic process?Condensing

Freezing

Boiling

Solidifying

Answers

The answer is probably Boiling.

Endothermic process or reaction refers to the system in which the heat energy is absorbed from the surroundings. In boiling, the evaporation of the liquid water is an example of an endothermic process. Other examples are photosynthesis, the melting of ice, and cracking of alkanes.

What is the difference between food chains and food webs? Food webs show the flow of energy from producers to consumers, and food chains show the flow of energy from consumers to producers. Food chains show a single path of energy in an ecosystem, and food webs show overlapping pathways of energy in that ecosystem. About ten percent of the energy is passed on to the next trophic level in food webs, but in food chains, about ninety percent is passed on to the next trophic level. Heat is lost when energy is passed on to the next trophic level in food chains, but in food webs, heat is not lost when energy is passed on to the next trophic level.

Answers

Food chains show a single path of energy in an ecosystem, and food webs show overlapping pathways of energy in that ecosystem.

What is food chain?

Food chain shows the relationship between organisms by the food they eat.

What is food web?

A food web is the natural interconnection of food chains and a graphical representation of what-eats-what in an ecological community.

Difference between food chain and food web

Food webs show interconnection of food chains about the different animals in an ecosystem and different energy transfer processes.

Thus, food chains show a single path of energy in an ecosystem, and food webs show overlapping pathways of energy in that ecosystem.

Learn more about food chains and food web here: brainly.com/question/2179

Answer:

Food chains show a single path of energy in an ecosystem, and food webs show overlapping pathways of energy in that ecosystem.

Explanation:

Unlike food chains, food webs show more detailed information about the different animals in an ecosystem and show multiple energy transfers to different animals from the same sources.  

By looking at these examples, you will notice a dramatic difference in detail:

Which statement supports the modern extension of the cell theory that states "all living cells come from preexisting cells"? a. All living organisms are multicellular. b. Cells pass on hereditary information. c. Each cell in an organism contains a single nucleus. d. The chemical composition of cells varies by organism.​

Answers

The statement that supports the modern extension of the cell theory that states "all living cells come from preexisting cells" is that they pass on their genetic information. Option B is the correct answer.

What is the presence of nucleus like ?

The presence of nucleus is like the central position in which all the machinery of the cell parts are all included.

All organisms only  inherit genetic information just by  specifying the structure and the  function from parents.  In that case , all  the cells that  arise from the type of the preexisting cells such that  the genetic material needs to be replicated along with passing  from  the parent to the  progeny cell in each  of the cell division.

DNA, or  the deoxyribonucleic acid in which it is hereditary material in  the humans and all  the other organisms.  Nearly every cell in  person's body is having same kind of DNA. A sperm and egg each of them just  contain  a set of  the total pair of 23 chromosomes. When sperm fertilises egg,  then the two copies of chromosomes  are just  present and an embryo just  forms up.

Learn more about cells at :

brainly.com/question/30046049

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Im 60% sure its B but if its not my bad

Please hurry!!!!!!!!!Which of the below examples is the best evidence that species adaptions to rocky shores need to be different than adaptations to sandy beaches?


A. Paddle crabs can very quickly burrow into the sand using their rear legs while still being able to use their paddles for swimming.


B. Certain mollusks are able to grind their shells to fit the contours of a nearby rock creating a suction effect.


C. Mud snails are able to suck in sand and excrete mud that helps nearby plants grow…and thus able to feed on them.


D. Marine bristleworms use their fine bristles for swimming and holding themselves in burrows while the tide is in.

Answers

Answer:

C

Explanation:

I gives you a better reason of why the species can adapt to their new environment in sandy beaches

The correct answer is C

One-celled organisms, such as bacteria, can reproduce very quickly using the process called _____. budding binary fission cytokinesis duplication

Answers


The correct answer is binary fission.

It is the process by which prokaryotic cells produce new cells that are genetically similar to the parent cell. It is an asexual  kind of reproduction.

it occurs in  three main steps

1. DNA replication to make a set of two chromosomes.

2. Chromosome segregation where the two chromosomes separate.

3. Cytokinesis, a process in which a new plasma membrane begins to form in the center of the cell followed by the splitting of the cytoplasm into two, and two daughter cells are formed which are genetically similar to each other and to the parent cell.