1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
lina2011 [118]
3 years ago
12

During which era did the first fish evole

Biology
1 answer:
Semenov [28]3 years ago
4 0
During the cambrian explosion
You might be interested in
Based on the scientific name streptococcus agalactiae, what morphology would you expect these cells to have? g
vfiekz [6]
<span>These cells would be in the shape of Sphere due to the shape of the type of bacteria present in Streptococcus Agalactiae which is called Coccus. This particular of bacteria is round in shape and have a affinity of forming a chain structure.</span>
7 0
3 years ago
Which best describes the cycle that ensures fresh water, which is vital for carrying out metabolic processes, is available?
max2010maxim [7]

Answer: B.  evaporation, condensation, precipitation

Explanation:

The cycle that ensures that fresh water is available is called the Hydrological cycle and it involves several key processes.

As it is a cycle, none of the processes can be considered first but if any could, it would be evaporation. This is when water on the surface is heated and becomes water vapor (gas) and rises towards the atmosphere.

Condensation occurs as the water vapor rises because the further up you go, the colder it gets. These water vapor particles will thus condense and clump together to form clouds.

These clouds keep getting larger until they are too heavy to be carried by the atmosphere in which case they fall to the ground as rain the process known as precipitation.

3 0
3 years ago
The universe consists of many different galaxies, which, in turn, consist of many different solar systems. Each solar system has
leonid [27]

Answer:

D. all of these

Explanation:

6 0
3 years ago
For which of the following groups would the biological definition of species be useful? For which of the following groups would
Lesechka [4]

Answer:

B) oaks and other sexually reproducing, extant (currently living) trees

Explanation:

The biological species concept defines the species on the basis of their reproductive isolation. It states that when individuals are able to interbreed to produce fertile and viable progeny, they belong to the same species. The members of different biological species cannot interbreed. If they interbreed, either pre-zygotic or post-zygotic isolation mechanisms do not allow the production of fertile progeny.

Therefore, the biological species concept can be applied to the organisms that are able to reproduce sexually. The asexually reproducing organisms would not exhibit any reproductive isolation which is a key criterion to group organisms under different species. Among the given examples, biological species concept can be applied to the sexually reproducing extant trees such as oak.

Since we cannot deduce the reproductive isolation in sexually reproducing extinct species, the concept is not useful for dinosaurs which are extinct now.

8 0
3 years ago
Many anti-evolutionists believe that since science doesn't have answers for all questions; scientific conclusions are not necess
Basile [38]

Answer:

In science, accepted theories do not represent absolute truths. A scientific theory is accepted when there is much evidence available that support its statements, but new lines of evidence can modify original presumptions  

Explanation:

A scientific theory is a plausible explanation of a particular phenomenon of the natural world, which has been many times tested and verified by using the scientific method. The accepted theories are progressively modified (or even overturned) as new lines of evidence emerge. In consequence, a scientific theory is composed of statements that we consider as truths regarding the available evidence, but we have no absolute certainty that such statements are true. The ability to self-correct is fundamental in science and it happens when we discover that the original statements of a scientific theory were wrong, thereby new lines of evidence allow us to correct the error and/or develop new scientific theories.

5 0
3 years ago
Other questions:
  • Termos e fatores ecossistema e comunidade são sinônimo
    14·1 answer
  • Bernadette complains to patrick that the volume on the tv is too loud; patrick claims he can’t hear the tv if he turns it down.
    7·1 answer
  • Which statement best describes geology?
    5·1 answer
  • Which of the following is not a fossil fuel ​
    11·1 answer
  • Explain how the arrangement of cellular components during the step of mitosis portrayed by cell D in Sample 2 facilitates the pr
    8·1 answer
  • What percentage of water do we use for washing our clothing?
    6·2 answers
  • Section 1 and 2 Summative Assignment: Heat and Heat Transfer
    15·1 answer
  • What does evolution mean in biology?
    14·1 answer
  • What do wolves eliminate from the population?
    9·2 answers
  • Cuales son 3 biomoleculas organicas que tenga el oxigeno?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!