Biology High School

The reason the lactase gene is made is due to ?

Answers

Answer 1

Answer: milk is present in the digestive system, which turns on the gene for lactase.

Explanation:

Related Questions

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Answer: panda is an animal, mushrooms are a plant, the green dot things are bacteria, trees are also a type of plant but in larger form, the orange string things are fungus and the grey is eubacteria

Explanation:

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22. What are the basic subunit monomers of a lipid?
23. What are the four types (classes) of lipids?
24. What are the 5 functions of lipids?
25. Name foods that contain a high amount of lipids?
26. What does "hydrophilic:" mean?
27. What does "hydrophobic" mean?
28. When referring to a molecule, what does "polar" mean?
29. When referring to a molecule, what does "nonpolar" mean?

Answers

22. Three fatty acids and a glycerol
23. Fatty acids, Glycerides, nonglycerides, complex liquids
24. Not sure
25. Avocados , cheese, nuts
26. Water loving
27. Water fearing
28. The molecule has charges
29. No charges

Answer:

22.Glycerol and fatty acids are the monomers of lipids

23.The four main groups of lipids include:

The four main groups of lipids include:Fatty acids (saturated and unsaturated)

The four main groups of lipids include:Fatty acids (saturated and unsaturated)Glycerides (glycerol-containing lipids)

The four main groups of lipids include:Fatty acids (saturated and unsaturated)Glycerides (glycerol-containing lipids)Nonglyceride lipids (sphingolipids, steroids, waxes)

The four main groups of lipids include:Fatty acids (saturated and unsaturated)Glycerides (glycerol-containing lipids)Nonglyceride lipids (sphingolipids, steroids, waxes)Complex lipids (lipoproteins, glycolipids)

24.Energy Storage. One of the main functions lipids do is storing energy. ...

Energy Storage. One of the main functions lipids do is storing energy. ...Cell structures. Lipids are present in every cell of the human body and are the main part of the cellular membrane. ...

Energy Storage. One of the main functions lipids do is storing energy. ...Cell structures. Lipids are present in every cell of the human body and are the main part of the cellular membrane. ...Hormones. ...

25.Triacylglycerols (also known as triglycerides) make up more than 95 percent of lipids in the diet and are commonly found in fried foods, vegetable oil, butter, whole milk, cheese, cream cheese, and some meats. Naturally occurring triacylglycerols are found in many foods, including avocados, olives, corn, and nuts.

26. having a tendency to mix with, dissolve in, or be wetted by water.A hydrophilic molecule or portion of a molecule is one whose interactions with water and other polar substances are more thermodynamically favorable than their interactions with oil or other hydrophobic solvents. They are typically charge-polarized and capable of hydrogen bonding.

27.Something defined as hydrophilic is actually attracted to water, while something that is hydrophobic resists water.

28.A polar molecule is a chemical species in which the distribution of electrons between the covalently bonded atoms is not even. Polarity is a description of how different the electrical poles of a molecule are. If they are highly different, it can be said that the species is a highly polar molecule.

29.A nonpolar molecule has no separation of charge, so no positive or negative poles are formed. In other words, the electrical charges of nonpolar molecules are evenly distributed across the molecule. ... Polar molecules tend to dissolve well in water and other polar solvents.

Explanation:

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What causes the light to refract as it
passes from air to water?

Answers

Answer:

Light refracts whenever it travels at an angle into a substance with a different refractive index (optical density). This change of direction is caused by a change in speed. When light travels from air into water, it slows down, causing it to change direction slightly. This change of direction is called refraction

Hope this helps.

How do gene determine physical traits like eye color?

Answers

Answer:

eye color is determined by genetic traits handed down to children from their parents

Explanation:

Which of the following is a function of the cell membrane?
A. stores water, salt, proteins, and carbohydrates
B. helps maintain homeostasis by keeping the cell wall in place.
C. breaks down lipids, carbohydrates, and proteins from foods.
D. helps maintain homeostasis as materials enter and leave the cell

Answers

D. Cell membranes are generally semi-permeable, which means that they allow some materials in (the ones they need to function) and out. Membranes also block materials that the cell doesn’t want or need from entering. Homeostasis essentially means “sweet spot” (not literally just a way to remember it). Hope this helps!

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who adapts, the population or individual

Answers

Answer:

to be honest i think the answer is the population

Explanation:

Answer:

Populations evolve through a process known as natural selection which allows individuals with beneficial traits for survival to breeding with other individuals who share those traits, eventually leading to offspring who only exhibit those superior traits.

Explanation:

Do y’all know what to do for this?

Answers

Answer:

It just seems like you're supposed to give four pieces of evidence of natural selection. If you're still confused, you can always ask your teacher.

Explanation:

Do you still need help?

Explain the similarities between photosynthesis chemical formula and cellular respiration chemical formula.

Answers

Photosynthesis makes the glucose that is used in cellular respiration to make ATP. ... While photosynthesis requires carbon dioxide and releases oxygen, cellular respiration requires oxygen and releases carbon dioxide. It is the released oxygen that is used by us and most other organisms for cellular respiration

The parts of an organism's environment that are living or once living, and interact with the organism are ?

Answers

Answer:

Biotic factor

Explanation:

I hope this helps u! :D

The tiny structures that are made INSIDE of a cell and connect to create
our traits are called
*

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Answer:

Genes

Explanation:

Genes ——-///———///——///—

Cells use the energy from this molecule to do the work.

Answers

Answer:

D. ATP

Explanation:

Which of the following terms is the most complex? aoms, molecules, organ, organ system, cells

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Answer:

The most complex is organ system

Explanation:

This is because it includes atoms and molecules and organs etc. and the largest level organization.

Answer:

I think the most complex term is atoms.

Explanation:

I think this because atoms help make molecules in your body, witch make up matter.

Multicellular organisms grow in size by producing more

Answers

Is a capable to a certain living organisms.

Multicellular organisms grow in size by producing more cells by the process of mitosis.

What is Mitosis?

Multicellular organisms are the organisms which are made up of hundreds or thousands of cells. These organisms grow by the production of new daughter cells through the process of cell division.

Cell division is of two types: Mitosis and Meiosis. Mitosis is an equational division, in which one parent cell divides to form two daughter cells. Mitosis occurs in each and every cell except in the formation of gametes (germ cells).

Mitosis occurs by nuclear division and cytoplasmic division. Nuclear division include four phases which include prophase, metaphase, anaphase, and telophase.

Learn more about Mitosis here:

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Answers

i think it is B and A sorry if wrong

i)
Describe the means of spread of the diseases given below.
a) Malaria
b) Cholera
c) Pneumonia

Answers

Answer:

Malaria-mosqitoes

Cholera- contaminated food and water

pneumoni- cought droplets

Explanation:

malaria-people get malaria by being bitten by an infective female Anopheles mosquito. Only Anopheles mosquitoes can transmit malaria and they must have been infected through a previous blood meal taken from an infected person.

Cholera-The cholera bacteria is passed through feces (poop). It is spread by eating or drinking food or water contaminated by the feces (poop) of an infected person. This occurs more often in underdeveloped countries lacking proper water supplies and sewage disposal.

Pneumonia-The viruses and bacteria that are commonly found in a child's nose or throat, can infect the lungs if they are inhaled. They may also spread via air-borne droplets from a cough or sneeze. In addition, pneumonia may spread through blood, especially during and shortly after birth

Which of the following statement is true about fossil ?

Answers

Answer:

there are no statements...

Explanation:

Answer:

Explanation:The deeper you go into the Earth the older the fossils will be. So, in the diagram you have provided we see that fossil #5 is the oldest and fossil #2 is the youngest.

The order of age goes like this (from youngest to oldest):

1. Fossil #2

2. Fossil #1

3. Fossil #4

4. Fossil #3

5. Fossil #5

Therefore, the only correct answer would be that fossil #4 is younger than fossil #3.

Which of the following best describes protein synthesis?
to create proteins from the DNA code using mRNA, TRNA, and Amino Acids
to create a carbohydrate from the DNA code using mRNA, TRNA, and Amino Acids
to create a protein using the mitochondria in the cell
to create a mutation from the DNA code

Answers

To create a protein I’m sure not a 100 percent right

Because carbon can bond to one another, what shapes can they form?

Answers

Correct answer - Tetrahedral, planar or flat.

Why? - When carbon forms single bonds with other atoms, the shape is tetrahedral. When two carbon atoms form a double bond, the shape is planar, or flat. Single bonds, like those found in ethane, are able to rotate.

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What is some biological events

Answers

Answer:

Physicals changes, the way your skin wrinkles. Basically all the stuff you body goes through over your life time

Explanation:

1. Which of the following groups of organisms are homeotherms?

a. reptiles and birds
b. birds and mammals
c. mammals and reptiles
d. reptiles, birds, and mammals

Answers

Answer:

Birds and mammals is a group of homeotherms

pls help. due today. answer ASAP
how will environmental and genetic factors affect the growth of a squirrel?

Answers

Answer: A genetic mutation causes a squirrel to be born with much darker fur

Explanation:

Which two minerals are also elements?

Answers

Answer:

carbon and titanium, hope that helps

Explanation:

5. In which of these areas would you expect
to find the largest population of rabbits?
Please help meee

Answers

Answer:

Explanation:

Rabbits are herbivore, so they can live better and obtain more food there

what are some Major Characteristics Temperate Deciduous Forest

Answers

Answer:

The Temperate Deciduous Forest is a biome that is always changing. It has four seasons: winter, spring, summer, and fall. Constant rainfall and daylight saving hours also contribute.

Explanation:

Temperate deciduous forests get between 30 and 60 inches of precipitation a year, this helps keep the forest lush and green. When it comes to daylight savings in the fall, lack of sunlight can affect photosynthesis and the amount of sun the plant gets. Unlike the amazon forest, the temperate biome goes through all 4 seasons and has plant regeneration in the spring instead of constant vegitation.

Hope this helps :)

heating causes a substance to lose thermal energy

Answers

Answer:

true

Explanation:

Is Salmonella maintaining? Why or why not? Plz help

Answers

Answer and explanation:

No, because most people are infected with salmonella by eating foods that have been contaminated by the s-word. Since our society is much more industrialized, we are cleaner when it comes to making food. Salmonella is mostly found in dirtier countries such as third world countries. Obviously, other food-borne illnesses are out there, but salmonella is not as common anymore, since we are improving.

Im not sure which one it is

Answers

Answer:

its the 3 one

Explanation:

plants are natures___________ conditioners

Answers

Answer:

air conditioners

Explanation:

Oxygen is always released from higher plants during photosynthesis

Construct an explanation to describe the cycling of matter and energy that occurs during photosynthesis.

Answers

Answer:

yes,

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Q.18. During which period did the first trilobites appear?
a) Cambrian
b) Devonian
c) Silurian
d) Ordovician

Answers

Answer:

a) cambrian

Explanation:

The first body fossils of trilobites appeared in the Early Cambrian Period, about 540 million years ago.

Answer:

A. Cambrian period

Hope this helps :)

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