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Bad White [126]
3 years ago
13

which definition goes where idefk I’ll give u brainlist biology teacher driving me nuts omfmsjajhahwahsn

Biology
1 answer:
Zigmanuir [339]3 years ago
3 0
Primary succession- soil needs to be rebuilt
Secondary succession- soil is still present
Pioneer succession- first species to arrive at an uninhabited environment

Lmk if this helped!
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Stages of mitosis and what happens in each stage.
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There are 4 stages in Mitosis...
Prophase:
It is the first phase in which the chromatin coil to become chromatids, and those chromatids pair up and the nuclear membrane surrounding them dissolves. The centrioles move to each end (pole) of the cell.
Metaphase:
Where the paired chromatids align in the centre of the cell and spindle fibres attach to them at the centromere. 
Anaphase:
The centrioles act as anchors, tearing the paired chromatids away from each other using the spindle fibres. Each paired chromatid moves to either (the opposite) end of the cell.
Telophase:
Where the chromatids elongate to form chromatin, and a nuclear membrane begins to form around the chromatin at each end of the cell. Cytokinesis occurs in this stage as the cell separates into two daughter cells. In animal cells, there is cleavage as the two cells are starting to separate. In plant cells, a plate begins to form.

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2 years ago
The most common form of producers found on earth
Zigmanuir [339]
The survival of every ecosystem is dependent on the producers<span>. Without </span>producer s<span>capturing the energy from the sun and turning it into glucose, an ecosystem could not exist. On </span>land,plants<span> are the dominant </span>producers<span>. Phytoplankton, tiny photosynthetic organisms, are </span><span>the most common producers</span>
5 0
2 years ago
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How do you know when germination occurs in a plant
dusya [7]

Answer:

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6 0
3 years ago
he complete set of an organism's or population's genes. A variation at a single position in a DNA sequence among individuals of
ad-work [718]

Answer:

The complete set of an organism's or population's genes. B. genome

A variation at a single position in a DNA sequence among individuals of the same species. F. single nucleotide polymorphism (SNP)

A lab instrument used to precisely measure and move small amounts of liquid. E. micropipette

A procedure that makes thousands of copies from a small sample of DNA. J. polymerase chain reaction (PCR)

A word that means to copy. I. amplify

An enzyme that copies a single strand of DNA. A. DNA polymerase  

A single, short piece of DNA that must be present to copy a DNA template. D. primer  

Viruses that infect bacteria. C. bacteriophages  

Short enzymes that cut DNA samples at a specific base sequence. H. restriction endonucleases (restriction enzymes).

A process that separates pieces of DNA by their size using an electrical current. K. gel electrophoresis

A series of chemical reactions that generate a cellular response. L. signal transduction

A molecule that binds to another molecule. G. ligand  

Explanation:

Genome is also defined as a full set of genetic material in an organism.

SNP is usually referred to a substitution of a single nucleotide at a specific position in the DNA.

Micropipette is used for the precise measurement and for the exact amount of liquid delivery.

PCR is a widely used technique in molecular biology, used for the amplification (replication) of DNA fragments. It is performed thanks to heat-resistant enzyme (Taq polymerase) through the cyclic reactions. Polymerases are enzymes that add nucleotides in order to make chanis-polymers of nucleic acid (polymerization) and they require short DNA segment (primer) in order to start the polymerization. Restriction enzymes are enzymes that recognize and cut DNA at specific site (restriction site) and are widely used in DNA cloning.

Signal transduction is a set of steps from signal binding to cell response that are transmitted through the cell. It usually starts with ligand-receptor binding.

5 0
3 years ago
________ causes euphoria followed by agitation, and is the major opioid drug of abuse.
Blababa [14]

Heroin is an opioid drug composed of morphine, a natural alkaloid derived from extracts from the seeds of the opium poppy. It is for that reason that heroin is considered a semi-synthetic opioid.

  • HEROIN causes euphoria followed by agitation, and is the major opioid drug of abuse.

  • Heroin is a drug that causes addiction, a form of substance use disorder.

  • This drug (heroin) is capable of entering the brain quickly and producing immediate effects.

  • The feeling of euphoria caused by heroin is followed by a period of sedation because heroin (as well other opioids) sedates the brain.

Learn more in:

brainly.com/question/9826977?referrer=searchResults

8 0
2 years ago
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