BIOLOGY HIGH SCHOOL

Historically, global climatea. has always been the same.
c. has varied greatly over time.
b. has varied slightly over time.
d. None of the above.

Answers

Answer 1
Answer:

Answer:

Option B, has varied greatly over time

Explanation:

The climate change on planet earth is a long and continuous process which is ongoing till today. It is believed that some four billion years ago, the atmosphere of earth was made up of radical ions and also the earth was excessively hot. After this phase the life evolved on earth and the climate also improved. After several years of its formation, the earths climate again took a drastic turn when the ice age came and every thing just got frozen. This occurred during the Pleistocene Epoch period some 2.6 million years ago.

Later on , the ice age also passed and now a days temperature is rising year by year due to global warming.

Due to these drastic conditions it can be said that the climate of earth changed greatly over time.
Answer 2
Answer: has varied greatly over time

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Which of the following is not a factor that helps create the stomach mucosal barrier?A. thick coating of bicarbonate-rich mucus
B. tight junctions of epithelial mucosa cells
C. replacing of damaged epithelial mucosa cells
D. rennin

Answers

Rennin is not a factor that helps create the stomach mucosal barrier, whereas thick coating of bicarbonate-rich mucus, tight junctions of epithelial mucosa cells, and replacing of damaged epithelial mucosa cells are.

The formal system for classifying and naming organisms was developed by The formal system for classifying and naming organisms was developed by Aristotle. Louis Pasteur. Carolus Linnaeus. Ignaz Semmelweis. Robert Koch.

Answers

Answer: Carolus Linnaeus

Explanation:

The formal system of classification was introduced by a Swiss scientist named Carolus Linnaeus.

He first split living things into a general category called KINGDOM.

- The kingdom is further split into large smaller groups called PHYLUM (for animals) and DIVISION (for plants).

- Each phylum or division is broken down into CLASSES.

- Each class is broken down into ORDERS

- Orders into FAMILIES,

- Families into GENUS

- Genus into SPECIES

Thus, the linnaean system of classification from highest (most general category) to the lowest level is as follows: Kingdom --> phylum/division --> class --> order --> family --> genus --> species.

What specifically is this biochemical used for, and how is it broken down during digestion?

Answers

digestion occurs in the stomach and the duodenum through the action of three main enzymes: pepsin, secreted by the stomach, and trypsin and chymotrypsin, secreted by the pancreas.During carbohydrate digestion the bonds between glucose molecules are broken by salivary and pancreatic amylase.The digestion of certain fats begins in the mouth, where short-chain lipids break down into diglycerides because of lingual lipase. The fat present in the small intestine stimulates the release of lipase from the pancreas, and bile from the liver enables the breakdown of fats into fatty acids.DNA and RNA are broken down into mononucleotides by the nucleases deoxyribonuclease and ribonuclease (DNase and RNase) that are released by the pancreas.

Which lists types of materials from most conductive to least conductive?a. insulator, semiconductor, conductor, superconductor
b. superconductor, conductor, semiconductor, insulator
c. conductor, insulator, semiconductor, superconductor
d. semiconductor, conductor, superconductor, insulator

Answers

Answer: The correct answer is B) Superconductor, conductor, semiconductor, insulator.

Resistivity to the flow of electrons is inversely related to the conductivity of the material. This means that more is the resistivity, lesser is the conductivity.

Superconductors are those materials, which have zero resistivity. Thus, they have maximum conductivity, conductors are those that have little resistivity, semiconductors have more resistivity than conductors, and insulators have maximum resistivity so they do not allow the electric current to pass through them.

Thus, B) is the right answer.

From the most conductive to the least conductive, the given materials are arranged as follows:

  • superconductor, conductor, semiconductor, insulator

What are conductors?

Conductors are materials that allows heat and electricity to pass easily through them.

Conductors are mostly metals.

Metals are good conductors because of their electron clouds and because their atoms are closely packed together.

In terms of conductivity, the most to the least conductive materials are:

  • superconductor, conductor, semiconductor, insulator

Learn more about conductors at: brainly.com/question/492289

If a person has adapted to an environment, they have __________.

Answers

you have adjusted to the differences within the new enviornment
if they have adapted then that means they have adjusted to their surroundings.

The aloe plant has thick, water-filled leaves covered with spikes. The flowers are high on a stalk, so that pollen can be quickly and easily released. What biome is the aloe BEST adapted for? 1. tundra

2. desert


3. savanna


4. tropical rainforest

Answers

Aloe Vera is a native plan in North Africa. It is considered to be a succulent or fat plant which gives it its ability to store large amounts of water in its leaves and roots. This is the reason why this plant grows best in mild to warm climate such as the desert. 
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