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Anon25 [30]
1 year ago
14

Why are invasive species bad?

Biology
2 answers:
Andru [333]1 year ago
7 0

Answer:

threaten the food webs of their invaded habitat and effect the ecosystem.

rjkz [21]1 year ago
5 0
Invasive species are bad because they take over their habit and throw off the balance of the ecosystem already set
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How do you think scientists count the world’s human population?
ArbitrLikvidat [17]

Answer:

Scientist count the world humans population with an organization called The United Nations Population Division (UNPD),

Explanation:

Which keeps track of the world population, projects that the world's human population will hit 7 billion on Halloween Day 2011. Admittedly, that is just an estimate: There's no way to know exactly how many people are alive at any given moment, and the true date that humanity's ranks will surpass 7 billion could come in the weeks or months before or after Oct. 31. Nonetheless, the UN's guess is the best there is.

4 0
3 years ago
A mutation that involves a single nucleotide is called.
alina1380 [7]

Answer:

Point mutations are a broad category of mutations that describe a change in a single nucleotide of DNA, such as a substitution for another nucleotide, deletion of a nucleotide, or insertion of a single nucleotide into the DNA, resulting in DNA that differs from the normal or wild type gene...

or you can say:

Point mutations are a large category of mutations that describe a change in single nucleotide of DNA, such that that nucleotide is switched for another nucleotide, or that nucleotide is deleted, or a single nucleotide is inserted into the DNA that causes that DNA to be different from the normal or wild type gene ...

8 0
2 years ago
Which of the following statements about air pollution is not true?
Leokris [45]
Im pretty sure the answer is c.

let me know if its correct
7 0
2 years ago
Read 2 more answers
What is a population?
Brut [27]

Answer:

A group of the same species living one area.

Explanation:

Population, in biology, is defined as all the organisms of the same group or species that live in a specific area and are capable of breeding among themselves. The term “population” encompasses a group of organisms of a single species that can interbreed and live in the same time in the same environment. Source: Byjus.com

7 0
2 years ago
Sequence the following events correctly. 1. Neurotransmitter diffuses across cleft. 2. Calcium induces exocytosis of neurotransm
Misha Larkins [42]

Answer:

The correct sequence is 21543.

Explanation:

The procedure by which the signaling molecules known as neurotransmitters are discharged by the neuron's axon terminal and combines and reacts with the receptors present on the dendrites of another neuron or postsynaptic neuron is termed as neurotransmission.  

The following are the steps followed in the process of neurotransmission:  

a. Exocytosis of neurotransmitter gets stimulated by calcium.  

b. The diffusion of neurotransmitter takes place across the synaptic cleft.  

c. The binding of neurotransmitters takes place with the receptor.  

d. After the binding opening of ion channels takes place.  

e. The permeability of the postsynaptic membrane gets changed.  

5 0
2 years ago
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