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Rom4ik [11]
3 years ago
14

What are the two different characteristics that scientists examine to classify living things/

Biology
1 answer:
skad [1K]3 years ago
6 0
One of the characteristics you're looking for is whether the organism is a vertebrate (with a backbone) or an invertebrate (without a backbone).
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Which reduced englands population by half between 1348and 1379
zhuklara [117]

I believe the answer to this is Black Plague.

The black plague or the black death as some people like to call it was transferred to the people by rodents who had it, they would get black death from fleas that were already sick. This spread throughout England and France.

Hope this helped :)

Have  a great day

8 0
3 years ago
A chemoelectrical signal that can travel along cell membranes in a wave-like pattern is a(n)?
OverLord2011 [107]

A chemo electrical signal that can travel along cell membranes in a wave-like pattern is called a nerve impulse.

What is a nerve impulse?

  • A nerve impulse is an action potential generated across the plasma membrane of the neurons of our nervous system.
  • The electrical potential difference generated across the neurilemma i,e., the plasma membrane of the neurons (due to the reception of the external stimulus), is responsible for the generation of the nerve impulse.
  • Neurotransmitters, chemicals like acetylcholine, dopamine, etc., are also involved in transmitting nerve impulses across neurons.

Hence, the chemoelectrical signal that can travel along cell membranes in a wave-like pattern is a nerve impulse.

Learn more about a nerve impulse: brainly.com/question/14696123

#SPJ1

8 0
2 years ago
According to one theory of color vision, colors are signaled in pairs by neurons that fire faster one color and slower to anothe
Advocard [28]

Answer;

Opponent process theory

Explanation;

-Opponent process theory suggests that color perception is controlled by the activity of two opponent systems: a blue-yellow mechanism and a red-green mechanism.

-The opponent process theory suggests that the way humans perceive colors is controlled by three opposing systems. We need four unique colors to characterize perception of color: blue, yellow, red, and green. According to this theory, there are three opposing channels in our vision; these are blue vs yellow, red vs green and black vs white.

3 0
4 years ago
Read 2 more answers
PLEASE HELP
Feliz [49]
<span>What moves across axons? A. Ions
</span>
5 0
4 years ago
3. What did he need to know about the parent plants before using them? George mental
prohojiy [21]

Answer:

Gregor Mendel, through his work on pea plants, discovered the fundamental laws of inheritance. He deduced that genes come in pairs and are inherited as distinct units, one from each parent. Mendel tracked the segregation of parental genes and their appearance in the offspring as dominant or recessive traits.

4 0
4 years ago
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