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Alexus [3.1K]
2 years ago
9

Pioneer species are species which colonize previously uncolonized land, usually leading to ecological succession. They are the f

irst organisms to start the chain of events leading to a livable biosphere or ecosystem. Why is a lichen most likely to be a pioneer species?
A The mutualistic relationship of species forming a lichen allows it to survive independently.

B The lichen is fast growing and provides a nutritious food source for many other species.

C The lichen does not require sunlight to survive.

D The lichen is a decomposer that digests rocks and forms soil.​
Biology
1 answer:
mixer [17]2 years ago
8 0

Answer: D

Explanation: Bc

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Sunny_sXe [5.5K]

Answer:

I think c

Explanation:

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6 0
2 years ago
For an x-linked gene, there are two alleles, a and
Temka [501]
So basically you have to like multiply and stuff so you would freaking get like 250 or something. 
6 0
3 years ago
Carbon bonding is almost entirely covalent. This property allows carbon compounds to _____. decompose easily, thereby providing
hoa [83]
Carbon bonding is almost entirely covalent. This property allows carbon compounds to make oxygen more readily available to the organism. The correct option among all the options that are given in this question is the last option. This property of carbon has become a life saver for variety of organisms.
4 0
2 years ago
The divisions of the nervous system that have antagonistic actions, or opposing actions are A) motor and sensory. B) sympathetic
Effectus [21]

Answer:

B) sympathetic and parasympathetic

Explanation:

e autonomic nervous system also called the vegetative nervous system is part of the peripheral nervous system which inervates  smooth muscle and glands. Thus, it directly affects the function of internal organs and  regulates  functions such as the heart rate, digestion, respiratory rate,  urination etc. This nervous system control is  unconscious.

The autonomic nervous system is divided into: the sympathetic nervous system, the parasympathetic nervous system and the enteric nervous system.

Parasympathetic nervous system works when organism is at rest so it is known as system responsible for "rest and digest functions". On the other hand, sympathetic nervous system works at active and stressful situations and it is known as "fight and flight" system.

7 0
3 years ago
Drag each tile to the correct location on the chart. What are the pros and cons of sexual and asexual reproduction?
levacccp [35]

Answer:

Sexual reproduction:

Pros: leads to greater genetic variation.

Cons: requires more time and energy.

Asexual reproduction:

Pros: Does not require finding a mate.

Cons: Produce less genetic variation.

Explanation:

Sexual reproduction is a type of reproduction in higher organisms, in which new individuals are formed by combining genetic information from two different types (sexes) of individuals.

Advantage: Sexual reproduction leads to higher genetic variation due to recombination between genetic material of female and male gamete during meiosis.

Disadvantage: Sexual reproduction is a time and energy consuming process as it needs interaction between mates and organisms which are produced sexually require more time for development.

Asexual reproduction involves formation of new organisms from a single parent organism without gamete fusion.

Advantage: Asexual reproduction requires less time and energy as it does not require finding a mate.

Disadvantage: Asexual reproduction produces less genetic variations as it involves only parent organisms (no mixing of genetic information) and the only source of variations are random mutations.

7 0
3 years ago
Read 2 more answers
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