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givi [52]
3 years ago
8

Environmental indicators:

Biology
1 answer:
Rufina [12.5K]3 years ago
7 0

Answer: B. describe what is causing a change in the environment

Explanation:

Environmental indicators can be define as the signs shown by the biotic as well as the abiotic factors of the environment which are indicative of the changes occurring in the environment. These indicators will help in tracking the exact state of the environment. For example, the cause of ozone  depletion is the increase in concentration of chlorofluorocarbons and other pollutants in the atmosphere. These are the warning signs that occur due to the hazards caused by humans and catastrophic events.

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inysia [295]

Answer: they all have a nucleus

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3 years ago
The extensions of the sarcolemma that carry the nerve impulses deep into the sarcoplasm are the?
MatroZZZ [7]

Answer:

T tubules

Explanation:

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3 years ago
While mutation is random, natural selection is not. In your own words, explain how this is possible
alina1380 [7]

Answer:

Mutation is a alteration in the DNA sequence in a gene during cell divison iwhere gene is coded mitakeny or due to the error. Mutatio is a random process as it can not be determind or known befor bthechange in sequence what gene or DNA would be effected by it or what genes would be transfer from the parents.

Natural selection is a process where some of the traits that are helpful in the surviving and increasing the number of individuals in a population and transfer from one generation to other according the adaption and change over the long timeline. Thus, it is not random and based on the traits that are helpful in a environment or for the survival of  

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3 years ago
The fossil of a plant reveals that it produced spores that were used for reproduction. Which type of plant was it
natali 33 [55]

Answer;

Seedless plant.


The fossil of a plant reveals that it produced spores that were used for reproduction. It was a seedless plant.


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-These plants reproduce using haploid , unicellular spores instead of seeds.

-These plants have life cycles with two distinct stages; one in which spores are produced and one in which sex cells are produced.

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3 years ago
Can someone tell me what's the syllabus taught in American high schools, like in 10th grade? I'm not an American student and I'm
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High schools are made up of two programs: the first is called "middle school" or "high school" (middle school) and the second is called "high school" (high school). A diploma or certificate is awarded upon graduation from high school. Upon graduation from high school (twelfth grade), American students can go on to college or university. Studies at a college or university are known as "higher education."

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2 years ago
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