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Nastasia [14]
3 years ago
12

Please answer these 4 questions.

Biology
2 answers:
ira [324]3 years ago
6 0

Answer:I just did this exact same thing do we go to the same school lol

Explanation:

Elza [17]3 years ago
6 0
1) The environment changed when the mosquitoes went from a high population down to a lower one.
2) It is a short term change in the environment because even though the population was at its lowest in year 5, it increased every year after that.
3) The organism responded to these changes by dying off every year. They started to adapt to the pesticides after a couple of years.
4) Future populations of mosquitoes will be immune to the pesticides that they used. Scientists will have to create a new one for the new generation.
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Sodium and potassium ions move in and out of the axon when the membrane is ______
Ostrovityanka [42]

Answer:

Answer : Depolarized

Explanation:

Sodium and Potassium ions tend to move inside of the axin when the membrane is depolarized.

A change in polarity occurs in the axon membrane when a nerve impulse travels across it.  At the beginning of an action potential or nerve impulse , the ions of sodium tend to move inside of axon causing depolarization. As a result potassium ions tend to move outside of the axon causing re polarization. Hence, this effect causes the nerve impulse to travel in one direction only inside the axon.

7 0
3 years ago
When did Isaac Newton start learning facts about Force and Motion?
Blababa [14]

Answer:

He developed the theories of gravitation in 1666, when he was only 23 years old. Some twenty years later, in 1686, he presented his three laws of motion in the "Principia Mathematica Philosophiae Naturalis." The laws are shown above, and the application of these laws to aerodynamics are given on separate slides.

Explanation:

4 0
3 years ago
PLEASE HELP ASAP
KengaRu [80]

Answer: They have streamlined bodies with poweful muscles

Explanation: them are some strong boys

6 0
2 years ago
6. Why does meiosis increase genetic variation in the offspring, but mitosis does not? (1 point)
brilliants [131]
Meiosis involves crossing over where chromosomes exchange genetic segments, resulting in different sets of chromosomes. Each time an egg or sperm created, it is different due to this recombination. Mitosis on the other hand is non-sex cells replicating exact copies of themselves which lead to no genetic variation as they aren't involved in producing offspring.
3 0
3 years ago
Look at the picture of a trilobite. these animals were once present in the ocean but are now completely extinct. what is a likel
Tamiku [17]
Okay so I just took the test and it said the answer is <span>Something changed to limit and finally abolish their success in this environment! I hope this helps!</span>
5 0
3 years ago
Read 2 more answers
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