A model of gene expression within the lac operon is shown here. If a mutation occurs in the operator (O) region of the operon that changes the sequence of nucleotides in the operator, which statement(s) predict the outcome of this mutation? Select ALL that apply.

Answer:

D

Explanation:

Reefs

1 salty water

2 maximum sun

3 73° F or higher

Answer:

D. Same number of chromosomes as the original cell

Explanation:

Mitosis is a kind of cell division which results in two daughter cells that are genetically identical to one another and the parent cell. Mitotic division causes each daughter cell to contain the SAME NUMBER OF CHROMOSOMES as the parent cell.

For example, a somatic human cell contains 23 pairs of chromosomes. If this cell undergoes division by mitosis, the two daughter cells that will result will contain 23 pairs of chromosomes each. This means that the two new cells that results from mitosis have the same number of chromosomes as the original cell.

Answer:

the ecosystem will be disturbed... the animals feeding on it will be reduced due to lack of food and the animals on which the star fish was feeding will be increased which causes a total imbalance in ecosystem..

Answer: d. a slower response to a stimulus and sustained without fatigue.

Explanation:

The activity of the enzyme ATPase is slower in the smooth muscles as compared to the skeletal muscles as a result the production of ATP is also slow this can directly affect the response giving ability of the smooth muscles to the stimulus so there is an delay in the response given by the smooth muscles. The smooth muscle cells are involuntary. They use very little amount of ATP does during energy requirements they sustain without fatigue.

Answer:

Ascaris

Explanation:

Answer:

c.Ryanodine receptor

Explanation:

Calcium ion release from the SR, occurs in the junctional SR/terminal cisternae through a ryanodine receptor (RyR) and is known as a calcium spark.

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Answer:  C that protists are single-celled organisms

Explanation:

I hope this helped!

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Answer:

A) Dirt

Explanation:

Our environment comprises of two factors namely biotic factors and abiotic factors. Biotic factors are those in an ecosystem that consists of all living organisms such as plants, trees, humans, insects, animals, birds, etc. These living organisms will interact with each other and sustain their life.  

Abiotic factors are those that contain non-living organisms. These factors include soil, air, water, sunlight, etc. These factors often have a greater impact on biotic factors. From the question, a plant is a living thing and it belongs to the biotic factor.  

Answer:  They are all Abiotic factors actually but my best guess would be B. sunlight

Explanation:

Explanation:

1. The materials are physically combined because all of the materials including the sand, salt, and iron fillings are their own substances and they maintain their original form. This is a mixture and they aren't chemically combined.

2. To separate each of the materials physical means would be used because since they're their own individual substances and have kept their original form they're mixed and not chemically combined.

3. The iron and oxygen atoms in rust are chemically combined because they are no longer individual substances and haven't kept their original form, so therefore they're a chemical combination.

Answer:

I thiink that what you're talking about is a projector

Answer: C. meiosis produces sex cells that are joined during sexual reproduction to produce offspring

Explanation:

Meiosis is also called as reduction division in this the parent diploid cell divides twice to produce four haploid daughter cells. The daughter cells so produce after cell division contain half the number of chromosomes then that of the parent cells. The germ cells in males and females divide twice or meiotic division occurs in them twice to produce four daughter haploid gamete cells that are sperms (male) and ovum (oocyte) (female). These male and female gametes fuse during sexual reproduction. The sperm fertilizes an ovum to produce zygote.

Answer:

c

Explanation:

Answer:

c

Explanation:

the answer is menstruation

Answer:

RBCs are round red blood cells that easily move through blood vessels and carry oxygen with them to provide cells oxygen. In sickle cell anemia, the shape of the red blood cells is like sickles or crescent moons.

These cells occur due to mutation on the gene that produces this protein which results in rigid, sticky cells that can get stuck in small blood vessels and blocks the flow of blood, oxygen to parts of the body.

Answer:

How many patients had allergies or ear infections, but not both?

24

27

36 answer

40

Explanation:

B

Answer:

Recessive gene disorders

Explanation:

Inbreeding often raises the danger of genetic mutation disorders. Calf defects, infertility, and stillbirths are also potential consequences of these conditions. To have the condition, animals should have 2 versions of a genetic abnormality.

Answer:

To begin, you need to prepare a yeast solution. Add the yeast and sugar to the warm water. Stir and let it sit for 45 minutes. Once the yeast solution is ready, place a small drop onto a slide and cover with a coverslip.

Explanation:

Bubonic plague is one of three types of plague caused by the plague bacterium (Yersinia pestis). One to seven days after exposure to the bacteria, flu-like symptoms develop. These symptoms include fever, headaches, and vomiting. Swollen and painful lymph nodes occur in the area closest to where the bacteria entered the skin. Occasionally, the swollen lymph nodes, known as "buboes".

Answer:Today, it's best known as the Black Death or the bubonic plague. Medieval people called it "the blue sickness," La pest ("the Pestilence"), and "the Great Mortality." The name bubonic comes from the medieval Latin word bubo via Italian bilbo--meaning a pustule, growth, or swelling.

Explanation:

Answer:

Biomes are determined by their climate which is determined by percipitation and temperature

Explanation:

There are two main factors when scientists define a biome. One is the climate or the long-time average weather of a region. The other is the specific plants and animals in an area. The organisms in a biome often adapt to their environment. There are seven types of biomes based on these factors.

Hope this helped

Answer:

A, mountain building

Explanation:

When moutains form over time thats when the plates are forcing themselves onto eachother making a moutain

Answer:

Fertilisation happens if the egg cell meets and joins with a sperm cell in the oviduct. The fertilised egg attaches to the lining of the uterus. The woman becomes pregnant, the lining of the uterus does not break down and menstruation does not happen.

Answer:

The gene gun method is a method used for genetically modifying plants. With the use of a gene gun, the gene gun method delivers extra DNA directly into a plant's nucleus. The method is also commonly called particle acceleration or microprojectile bombardment.

Hope it helps...

Have a great day : )

Answer:

I'm pretty sure it's Gorilla Gorilla Glueilla Rilla

Explanation:

I THINK

Answer:

The electric field in the membrane wall of a living cell is 7.857 x 10⁶ V/m.

Explanation:

Given;

thickness of the membrane wall, d = 14 nm = 14 x 10⁻⁹ m

potential of the membrane wall, V = 0.11 V

The electric field in the membrane wall of a living cell is calculated as;

[tex]E = \frac{V}{d} \\\\E = \frac{0.11}{14 \times 10^{-9}} \\\\E = 7.857 \times 10^6 \ V/m[/tex]

Therefore, the electric field in the membrane wall of a living cell is 7.857 x 10⁶ V/m.

It's B!!!!!!!!!!!!!!!

Answer:

C. Immigrated

Explanation:

The plants stopped growing, so I imagine the microorganisms moved to find a better food source.

Answer:the angular distance of a place north or south of the earth's equator, or of a celestial object north or south of the celestial equator, usually expressed in degrees and minutes.

Physical surroundings rather than latitude determine the character of the flora.

Answer:

On the red parts of the map

Explanation:

The map shows that the red parts are the youngest.