BIOLOGY HIGH SCHOOL

9. Which of the following best sequences the functions of the digestive system from start to finish? A. Absorption, ingestion, digestion, elimination B. Ingestion, digestion, absorption, elimination C. Elimination, absorption, ingestion, digestion D. Ingestion, absorption, digestion, elimination

Answers

Answer 1

Answer:

The correct answer would be B. Ingestion, digestion, absorption, elimination.

Digestion refers to the breakdown of complex compounds into simpler elements.

The process of the digestive system can be sequenced as:

Ingestion: Intake of food from outside the body. For example, in humans, food is taken in from a mouth.
Digestion: The breakdown of complex compounds into simpler elements. For example, polysaccharides, polypeptides, and fats are converted into monosaccharides, amino acids, and fatty acid chains and glycerol respectively.
Absorption: The digested food is absorbed and transported to all parts of the body. In humans, the small intestine is the major site of food absorption.
Assimilation: The nutrients are transported or distributed to all cells of the body where they are utilized for power generation.
Excretion: The undigested food is then excreted out of the body. In humans, the solid waste is excreted through the anus.

Answer 2

Answer: its B.
you eat it (ingest) it goes to your stomach (digest) then to your intestines where more nutrients are extracted(absorption) then to your and out your anus (elimination)

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At the end of cytokineses, how many daughter chromosomes will be found in each cell?

An area that provides food and shelter see see

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Habitat: An area that provides food and shelter

What happens to an egg cell during ovulation?

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All women are born withmillions of immature egg cells in their ovaries. Ovulation happens when an ovaryreleases a mature egg through the fallopian tube. This process of getting anegg to mature will take approximately a month. Normally, only one of the pairsof ovaries will release a matured egg ready to be fertilized. Usually, it willtake 12-24 hours before the matured ovum dies when not fertilized. But whenthey are fertilized, they cling to the walls of the uterus.

The egg is released from the ovary in ovulation.

Reword the following statement to make it true: Nucleoli are membrane-bounded structures present in the eukaryotic nucleus. A) Nucleoli are two lipid bilayers that surround nucleus in eukaryotic cells.
B) Nucleoli are large protein complexes that cross the nuclear envelope in eukaryotic cells.
C) Nucleoli are thin, dense meshworks of fibers lining the inner surfaces of the inner nuclear membranes of most eukaryotic cells.
D) Nucleoli are structures made of DNA, RNA, and protein that are present in the eukaryotic nucleus.

Answers

Answer:

Option-D

Explanation:

The nucleolus is a structure present in the nucleus of the cell which is important for the cell.

The nucleolus provides the site of transcription of the rRNA genes and the enzymes required for transcription. The nucleoli appear condensed structure as the rRNA genes, some portion of DNA and the proteins in the form of the enzymes like RNA polymerase I.Therefore, nucleoli are made of the DNA, RNA and the proteins.

Thus, Option-D is correct.

Answer: Option D

Explanation:

The nucleolus is the largest structure which is found in the nucleus of the eukaryotic cells. It is the main site for the ribosome biogenesis.

Nucleoli consists of DNA and RNA, proteins and it forms around the nucleolar organizing regions. it also help in cell signaling.

These are like envelops which bounds the nucleus inside it. In case of the treatment of cancer, the main target is nucleolus.

The path that a body follows as it travels around another body in space is its

Answers

Answer:

orbit

Explanation:

The path that a body follows as it travels around another body in space is its ---- ORBIT

All of Kay's brothers can swim. If the statement above is true, which of the following must also be true? A. If Fred cannot swim, then he is not Kay's brother. B. If Dave can swim, then he is not Kay's brother. C. If Walt can swim, then he is Kay's brother. D. If Pete is Kay's brother, then he cannot swim. E. If Mark is not Kay's brother, then he cannot swim.

Answers

Answer: A

Explanation:

A agrees with the original statement, so if Fred cannot swim it must be absolutely true that he is not one of Kay's brothers. Dave being able to swim would support that he is one of Kay's brothers, not refute it. Walt being able to swim does not automatically mean he is related to Kay, so that is not necessarily true. Pete being unable to swim also refutes the original statement. Mark not being Kay's brother has no correlation to his swimming ability.

Polymers are formed by joining several units called monomers.what does the term monomer refer to?the answers are
a unit made up of several compounds
a unit made of several atoms
a unit made of several molecules

Answers

A monomer is a molecule, which means that it is a group of two or more atoms, which are bound in a chemical bounds. So the correct answer is a unit made of several atoms.

The term monomer refers to:

a unit made up of several atoms

Explanation:

A monomer is a molecule that "can support polymerization whereby providing constitutional units to the fundamental structure of a macromolecule". Large quantities of monomers combine to form polymers in a method called polymerization.

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