Jayne's science class is doing a laboratory investigation on cells. Her teacher gives them each a cotton swab to collect cheek cells from their mouths. They then smear the cheek cells onto a glass slide and look at the cells under a microscope.

What can Jayne expect all of her cheek cells to contain?
A.
a cell wall
B.
a nucleus
C.
a chloroplast
D.
all of these

Answers

Answer 1

Answer:

B. a nucleus

Explanation:

cell walls and chloroplast are both found in plant cells, not in animal cells

Answer 2

Answer:

Explanation:

A nucleus because a cell wall and a chloroplast are found in plant cells.


Related Questions

A warmer world is least likely to result in ____. Group of answer choices a rise in sea level reductions in biodiversity decreased food production spread of tropical diseases increased moderate weather

Answers

A warmer world is least likely to result in moderate weather because it may lead to changes in the earth especially associated with sea currents (Option 4).

What is climate change?

The expression climate change makes reference to all modifications in the weather conditions associated what recent phenomena which may be triggered by human activities such as the release of greenhouse gases due to industrial processes.

Therefore, with this data, we can see that industrial processes may derive in a warmer world by increasing the temperature of the earth and it may be associated with changes in the weather conditions.

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A fever is a sign that....
A. the immune system is fighting infection
B. the cardiovascular system has an artery blockage
C. the bones are not getting enough calcium
D. the skeletal muscles have been overworked

Answers

Answer:

a. the immune system is fighting infection

Answer:

a. the immune system is fighting infection

Explanation:

A particular viral genome can replicate in 8 hours. If you start with 55,000 copies of this genome, about how many copies would be present in a host's cell after 48 hours of growth

Answers

If a viral genome can replicate in 8 hours and the starting copies is 55,000, the number of copies after 48 hours would be 3,360,000 copies

Replication rates

The starting number is 55,000 and replication happens every 8 hours.

Starting from 0 hours, the genome would 55,000

After 8 hours = 55,000 x 2 = 110,000 copies

After 16 hours = 110,000 2 = 220,000 copies

After 24 hours = 220,000 x 2 = 420,000 copies

After 32 hours = 420,000 x 2 = 840,000 copies

After 40 hours = 840,000 2 = 1,680,000 copies

After 48 hours = 1,680,000 x 2 = 3,360,000 copies

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Are golgi apparatus found in plant and animal cells.

Answers

Answer:

Yes.

Explanation:

Similar functions of capsids and nuclear membranes.

Answers

Answer: both are made up of lipid bilayers. Main functions of both membranes are protection and transportation. Both are extremely important for the cell survival.

Hope this helps!

have a nice day!

The role of the cell membrane is most like the job of which person?
a firefighter who evacuates people from a burning building
a police officer who allows select people to enter and leave a crime scene
a bus driver who drives the express route from the suburb to downtown
a teacher who keeps students in the classroom during an exam

Answers

Answer:

A police officer who allows select people to enter and leave a crime scene.

Explanation:

This job of a police officer best describes the selectively permeablity function of a cell membrane in which it allows the entrance of some selected substances whereas blocks the entrance of unwanted substances.

Hope this helps

1. A parent has the Bb genotype. Due to the Law of Segregation, what percent
change do the offspring have to inherit the B allele from his parent?
2. What law of genetics says that organisms inherit each all ele from their
parents separately?
3.
One parent has curly hair, and one parent has straight ha r. Their child has
wavy hair. What type of dominance is this?

Answers

Answer:

1. 25% if it also includes the other parent's unknown alleles and 50% if it does not take into account the other parent.

2. The law of independent assortment states that organisms inherit each allele from their parents separately.

3. The type of dominance is incomplete dominance.

Specialization of science reinforced the professionalization of science. please select the best answer from the choices provided t f

Answers

It is a true statement that; "Specialization of science reinforced the professionalization of science."

Specialization of science

The term Specialization of science has to do with the departmentalization of science into several smaller subdisciplines which are somewhat interrelated.

It is a true statement that; "Specialization of science reinforced the professionalization of science."

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It is wise to study anatomy alongside with physiology because ________. to understand anatomy requires complete understanding of physiology physiology is only explainable in terms of the underlying anatomy it makes for more efficient use of students' and teachers' time anatomy and physiology are practically the same thing

Answers

It is wise to study anatomy alongside with physiology because physiology is only explainable in terms of the underlying anatomy.

What do you study in anatomy and physiology?

Anatomy is the analysis of the structures associated with the human body. Physiology is the analysis of the function of each of these systems. The human body is often thought of as a complex machine.

Thus, option "B" is correct, physiology is only solvable in terms of the underlying anatomy.

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The graph of function g has x-intercepts at x = -1 and x = 3 and a y-intercept at y = -3. Select the graph that could model function g.

Answers

Answer:

D because that graph hits all the points that you gave in your question.

Explanation:

If your on khan academy then its D.

What is one difference between photosynthesis and respiration

-respiration uses glucose as a reluctant
-photosynthesis creates useful energy
-respiration is done by plants
-photosynthesis uses glucose as a reactant

Answers

Answer: They are both very similar

Explanation:

What would happen to the cacti if all the lizards were killed by a disease? Explain why.​

Answers

Answer:

They would starve and die unless they could move to another habitat. All the other animals in the food web would die too, because their food supplies would have gone..

Explanation:

You are a _____ consumer if you feed on secondary consumers.

primary
producing
secondary
tertiary

Answers

Answer:

Tertiary consumer :)

Explanation:

Tertiary means third in a rank and they eat the secondary consumers. :)

Examples of Tertiary conumers are some carnicourus fish, whales, sharks, birds of prey, and large wild cats. :)

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Please rate and mark brainliest!!

Answer:

Tertiary Consumer feeds on secondary consumers

During ketosis caused by inadequate ingestion of carbohydrates, ______.

Answers

Answer:

The glycogen content of the liver is reduced

Explanation:

The hypothalamus releases ___________, the pituitary gland releases __________, and the adrenal glands release ____________ to complete the action in the HPA axis.

Answers

The complete statement is "Hypothalamus release CRH , pituitary gland  release ACTH, and the adrenal glands release cortisol to complete the action in the HPA axis."

What is HPA axis events?

Generally, The key physiological mechanism that regulates the human body's stress response is the HPA axis.

In conclusion, HPA axis cascaded events are

Hypothalamus release CRH

anterior pituitary release ACTH

adrenal glands release cortisol.

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Before heat fixation, a wet smear of bacterial cells on a slide must first be.

Answers

Answer:

air-dried

Explanation:

In order to heat fix a bacterial smear, it is necessary to first let the bacterial sample air dry. Then either place the slide in the slide holder of a microincinerator, or pass the dried slide through the flame of a Bunsen burner 3 or 4 times, smear side facing up. Once the slide is heat fixed, it can then be stained.

hope this helps :)

Arrange the statement of events below in the order that best describes the sequence of events in the pathology of clostridium perfringens poisoning once contaminated food has been ingested.

Answers

C. perfringens is found greatly in the environment in soil, rotting greenery and marine sediment, as well as in the intestinal tract of creatures. The bacteria can create endospores, apt of surviving adverse conditions for long periods of time.

What type of food poisoning is Clostridium perfringens?

Clostridium perfringens food poisoning is critical gastroenteritis induced by ingestion of contaminated food. Signs are watery diarrhea and abdominal cramps. Diagnosis is by identifying C. perfringens in infected food or in stool.

Thus, Clostridium perfringens food poisoning is critical gastroenteritis caused by ingestion of contaminated food.

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The number of chromosomes in a human gamete is __________; this is referred to as a __________ chromosome number.

Answers

Answer:

23, haploid

Explanation:

there are 23 chomrosomes in both a egg and sperm cell

this makes them haploid as they have a single set of unpaired chromosomes

hope this helped

The number of chromosomes in a human gamete is 23, and this is referred to as a haploid chromosome number because in a diploid cell there are a total of 46 chromosomes.

What are the chromosomes?

The chromosome numbers vary in the diploid cell of the human and in the haploid cell of the human, which is in the sperm and in the egg cell. The diploid cell has 46 chromosomes, and this cell can undergo either mitosis to produce an exact equal cell with 46 chromosomes or it can undergo the meiosis process to produce the 23 chromosomes. The mitosis is helpful for filing up the cut site, for cell duplication, or for body size growth, and the meiosis is helpful for gamete formation and helpful for the reproduction.

Hence, the number of chromosomes in a human gamete is 23, and this is referred to as a haploid chromosome number.

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Anger is a natural response to which of the following?


Exciting news


Anxiety


Displeasure


Sadness

Answers

Answer:

Anxiety, Displeasure, Sadness.

Explanation:

Common sense.

Answer:

Displeasure

Explanation:

The condition in which there are barriers to successful interbreeding.

Answers

Answer:

latent variations,

sterility

structural differences

reproductive isolation

You and your mom have (different/similar/identical) DNA.
PLS HELP WHICH ANSWER IS IT

Answers

Answer: it would be similair everyone get half of thier Dads DNA and half of the moms DNA I hope this helps

Answer:

Similar DNA

Explanation:

We and our mom will have similar DNA. We inherit half of our DNA from mother and half from father.

Our DNA is not different or completely same (identical) because, we inherit 50% of our DNA from mother. Hence, we can confirm that it is similar.

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Explain why the coyote is considered a limiting
factor in the Adirondack Mountains.

Answers

Answer:

Explain why the coyote is considered a limiting factor in the Adirondack Mountains. The coyote eats the beaver, deer, and moose so the coyote limits the number of prey. The coyote eats the beaver, deer, and moose so the coyote limits the number of prey.

for earlobes only, how many students in your class do you think will share the same form (free or attached) as you?

biology observing human traits lab

Answers

Answer:

sometimes

Explanation:

it all dependes on something

A piece of mRNA has the code AUG CCA UUG ACG. Which amino acids are coded in this strand?

A) Met, Ser, Glu, Trp
B) Leu, Cys, Arg, Lys
C) Leu, Glu, Leu, Tyr
D) Met, Pro, Leu, Thr

Answers

Answer:

D. Met, Pro, Leu, Thr

Explanation:

AUG- Met

CCA- Pro

UUG- Leu

ACG-Thr

Hopefully this helps outtt !! :)

which of the following are sources of biomass

Answers

Answer:

the answer is A. wood

Explanation:

ME IS SMART

FILL IN THE BLANK BELOW:

In other words, temperature is a measure of how fast the particles ________

Answers

Answer:

move

Explanation:

For example when an item is cold it will be heavier and move slower. But when its hot it will move faster and lighter.

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What do the three arrows represent in the figure Earth and the Moon? enter the correct label for each arrow in the diagram​

Answers

Answer:

the moons gravitational force at different points on earth

Explanation:

hope this pic helps! :)

What is the main cause of fish kills in rivers polluted by fertilizers?.

Answers

Answer:

On warm summer nights during algal blooms, the dissolved-oxygen concentration sometimes drops too low for the fish, and a die-off can occur. This can occur as a result of purely natural conditions or because of human activity that results in adding nutrients, nitrogen and phosphorus, to water systems.

Explanation:

hope it help's......

Natural selection is the changes of size and shape of living things in.

Answers

Natural selection is the changes of the size and shape of living things in nature.

What do you mean by Natural selection?

Natural selection may be defined as favorable variations through which organisms are better adapted and survive in the environment.

Natural selection is an agent of evolution. It is the component that forces the species to change and diverge from its parental species over a period of time.

It may alter the size as well as the shape of living organisms according to their need in nature for survival.

Therefore, natural selection is the changes of the size and shape of living things in nature.

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an alligator can run 1000 meters in 200 seconds what is the speed

Answers

Answer:

5m/s

Explanation:

speed=distance travelled / timetaken

=1000m/200s

=5m/s

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