BIOLOGY HIGH SCHOOL

Identify the BEST way to determine if two organisms are closely related. A) comparing body plans


B) molecular homology (comparing DNA)


C) identifying and comparing homologous structures


D) comparative embryology (comparing embryonic development)

Answers

Answer 1
Answer:

Answer: The correct answer is -

B) molecular homology (comparing DNA).

DNA (deoxyribonucleic acid) is considered as the genetic material of living organisms, which is passed from one generation to the next generation that is from parents to their offspring.

By comparing the DNA sequence of two organisms (molecular homology), we can determine whether they are closely related or not.

If two organisms share genetic relatedness that is similarity in their DNA sequence, they are considered to be closely related.

Thus, option B) is the right answer.

Answer 2
Answer: Comparing DNA might show more, since it would go down to the core. 

Related Questions

Higher animals and plants most likely have _____.isogametesanisogametesoogametes
Which of the following sentence correctly describes the relationship between chromosomes and genes? A. Organisms have many more chromosomes than they do genes. B. Every chromosome is made up of many genes. C. Chromosome is just another word for gene. D. Genes use chromosomes to make proteins.
Characteristics of membrane protein:____________. 1. Membrane proteins transfer genetic information to the cytoplasm. 2. Membrane proteins act as receptors to molecules like hormones. 3. Membrane proteins form junctions between cells. 4. Membrane proteins serve as enzymes.
Eggs are motile.true or false....
In 1783 Antoine Lavoisier showed that the heat produced by respiration was comparable to the heat produced when charcoal was burned. This experiment shows the similarity between respiration anda. boiling b. combustion c. ignition d. melting

Which definition best describes a base?A. A substance in a solution that releases hydrogen ions and lowers the pH
B. A substance in a solution that captures hydrogen ions and raises the pH
C. A substance in a solution that releases and captures hydrogen ions, keeping the pH the same
D. A substance in a solution that provides color over a narrow range of pH

Answers

The correct answer is:

B. A substance in a solution that captures hydrogen ions and raises the pH

Explanation:

Bases are substances that, in aqueous solution, release hydroxide (OH−) ions, are smooth to the touch, can taste bitter if an alkali,[1] change the color of indicators (e.g., turn red litmus paper blue), react with acids to form salts, increase particular chemical reactions (base catalysis), receive protons from any proton donor, and/or contain completely or partially displaceable OH− ions

Answer:

B

Explanation:

Ap3x

a ------- is a type of research that involves observation and collecting data but does not include a control a. independent variable B. dependent variable c. investigation d. experimentation

Answers

I think the correct answer is C. An investigation is a type of research that involves observation and collection of data but it does not include a control. In an investigation, all data and information that is related to the subject matter are collected it does not think of any factors that may affect the subject.

Language: English | Español 1) Which factor would INCREASE the carrying capacity for white-tailed deer in an Eastern temperate forest ecosystem? A) The re-introduction of the Eastern cougar into North Carolina. B) A large migration of the closely related mule deer, into the East. C) The construction of new roads and increased traffic through woodland areas. D) The re-introduction of the American chestnut tree, which produces many seeds, and used to live in North Carolina.

Answers

The right answer for the question that is being asked and shown above is that: "D) The re-introduction of the American chestnut tree, which produces many seeds, and used to live in North Carolina." The factor that would INCREASE the carrying capacity for white-tailed deer in an Eastern temperate forest ecosystem is that the re-introduction of the American chestnut tree, which produces many seeds, and used to live in North Carolina.

How does the endomembrane system work together with the ribosomes?. A. takes proteins out of the cell. B. provides a protective covering. C. helps to make food. D. obtains energy for the cell.

Answers

The way in which the endomembrane system work together with the ribosomes is that it takes proteins out of the cell. The correct option among all the options that are given in the question is the first option or option "A". I hope that this answer has come to your help.

Answer: Takes protein out of the cell

Explanation: All the proteins are synthesized in the ribosomes and then it is transported to various organelles.

The protein molecules are transported to the endoplasmic reticulum for further modification and this transportation of protein is carried out by the endomembrane system.

Hence, the endomembrane system and ribosomes work together.

T/F: There is more GTP in the cytosol than GDP. a. True b. False

Answers

Answer: True

Explanation:

GTP is present in the cytosol in much higher concentrations than GDP.

Gases such as oxygen and carbon dioxide cross the plasma membrane by

Answers

Diffusion - the movement of molecules down a concentration gradient from a region of high concentration to a region of low concentration.
This is because these molecules are non-polar and can easily travel across the hydrophobic parts of the plasma membrane :)

Diffusion is the process by which gases such as oxygen and carbon dioxide cross the plasma membrane.

Further Explanation

Plasma membrane present in all the animals and plant. Plasma membrane in plants is covered by a cell wall. plasma membrane is made up of lipid bilayer which is semipermeable to some molecule ions and gases. Through this lipid bilayer, plasma membrane regulates the influx and efflux of a molecule.

Main functions of plasma membrane is to,

• Maintain the structure of a cell

• Help in interaction with other cells

• Provide protection from outside

• Help in transport nutrient in the cell and transport toxic substances out of the cell.

The lipid bilayer is made up of phospholipids and these are an amphipathic molecule that contains hydrophilic as well as the hydrophobic region. the plasma membrane has 2 bilayers closely packed together and interior of membrane is hydrophobic,altogether these structures make plasma membrane selectively permeable and allow flux of small non-polar material like carbon dioxide, oxygen through simple diffusion.

Diffusion is a movement of a small molecule from higher concentration to a lower concentration. For example, oxygen is used by our cell very easily during metabolism and concentration of oxygen in cell become less and concentration of oxygen is high outside, so oxygen can easily diffuse through bilayer into the cell cytoplasm.

Learn more:

1. Learn more about eukaryotic cell:

brainly.com/question/10767798

2. Learn more about cell membrane: brainly.com/question/5923583

3. Learn more about phospholipid bilayer brainly.com/question/751529

Answer Details:

Grade: High School  

Subject: Biology

Chapter: Cell biology

Keywords:

Membrane, cellwall, phospholipid bilayer, cell, oxygen, lipid, diffusion, concentration, lower, high, metabolism, semipermeable, permeability, hydrophobic, hydrophilic, influx, efflux, metabolism.
Other Questions
What does a plant let out during photosynthesis?
Organisms can have positive or negative impacts on the ecosystem they live in. The cane toad, or Rhinella marina, was introduced to the Hawaiian Islands in 1932 by sugar cane farmers. Farmers released the toads in their crops to help control pests that were damaging the sugar cane. The cane toad has few natural predators, as it secretes a poisonous toxin from its skin that deters larger organisms from eating it. As a result, the cane toad population thrived and grew to number hundreds of thousands by 1935. width="379" Which role does the cane toad play in the Hawaiian Islands?a. native speciesb. invasive speciesc. uncontrolled speciesd. endangered species
Which of the following is an example of a role programmed cell death plays in maintaining homeostasis? 1) preventing crossover during meiosis 2) preventing self-fertilization in plants 3) promoting conjugation of DNA in bacteria 4) promoting tissue growth in body cells
Energy efficiency is based on the laws of thermodynamics; therefore, a loss of energy always occurs when one form is transformed into another. a. True b. False