BIOLOGY HIGH SCHOOL

True or false some lycophytes live anchored to an object or another plant

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Answer 1
Answer: This  is a True Statement.HOPE IT HELPED YOU

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MIDDLE SCHOOL

Place the following terms in the correct order from most complex (top) to least complex (bottom) in order to show the organization of life on earth. 1. tissue 2. molecule 3. organ 4. population 5. cell 6. atom 7. organ system 8. organism 9. ecosystem

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Answer:

  1. Atom (6)
  2. Molecule (2)
  3. Cell (6)
  4. Tissue (1)
  5. Organ system (3)
  6. Organ system (7)
  7. Organism (8)
  8. Population (4)
  9. Ecosystem (9)

Explanation:

An atom describes the smallest particle of matter that can exist and corresponds to chemical elements. Molecules represent at least two atoms bonded together, and can describe even up to large proteins.

The cell is the smallest unit of a living organism, describing a whole host of molecules working together to make a functioning machine. Cells are organised into cells with similar functions called tissues. These tissues can form complex machines called organs, such as the heart. Organs that work together collectively are called systems, such as the circulatory system or the nervous system.

All these systems work together to form an organism (i.e. one creature, such as a human). Organisms in the same species that occupy the same land and use the same resources are called populations. A number of populations of different species interact together to form an ecosystem.

HIGH SCHOOL

As you move lower levels of classification, what do organisms have?

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Here is the correct answer that would best complete the statement above. As you move lower levels of classification, the number of organisms decreases and the organisms at the lower levels of classification have more characteristics that they share with each other. 
HIGH SCHOOL

Enzymatic catalysis of the peptide bond between the growing polypeptide and the next incoming amino acid takes place in which binding site? a. A siteb. P sitec. E sited. combined A and P sites

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Answer:

a. A site

Explanation:

During the process of translation, ribosomes play a major role in connecting mRNA codons with tRNA anticodons. Ribosomes are composed of  two subunits which consist ofproteins and rRNA. The tree sites of ribosomes are:

  • P site or peptidyl site-this site binds to the tRNA which holds the growing polypeptide chain.
  • A site or acceptor site-this is a site of peptide bond formation between the growing polypeptide and the next incoming amino acid
  • E site or exit site-the site for the final binding of t-RNA .
HIGH SCHOOL

Organisms must maintain homeostasis because cells function best when internal conditions A) change at regular intervals
B) remain within a limited range
C) reflect external conditions
D) respond to positive feedback

Answers

B) remain within a limited range
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