Question 4 of 10 What do all cells have in common? O A. They are all bacteria. ООО B. They all contain DNA. C. They all have cell walls. D. They can only exist in pairs.​

Answers

Answer 1
I’m not sure but I think it’s B

Related Questions

3. Which tenet of the cell theory is being demonstrated by the graph below?

O Cells are the smallest unit of life
All living things are made of cells
Cells come from existing cells
Cells can never be destroyed

Answers

Answer:

Cells comes from existing cells and structures

What is the blending theory of inheritance? Why did Mendel question this theory?

Answers

Answer:

Blending Theory of Inheritance

Mendel noticed plants in his own garden that weren't a blend of the parents. For example, a tall plant and a short plant had offspring that were either tall or short but not medium in height. Observations such as these led Mendel to question the blending theory

The blending theory state that the inheritance of traits from two parents produces offspring with characteristics that are combination of the parents.

What is blending theory of inheritance?

Blending theory of inheritance stated that, offspring is combination of characteristics of the traits from two parents. Blending inheritance was discarded after the general acceptance of the modern genetics.

Mendel noticed that plant in his garden were not blend of the parents.  For example, a tall plant and a short plant had offspring that were either tall or short but not medium in height.

Therefore, Mendel question this theory. He wanted to know if there was different principle that could explain how the characteristics are inherited to the offspring from parents.

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Knowing what you know about how a substance travels in diffusion, in
order for oxygen to leave the alveoli and enter the blood, there would be
concentration of oxygen in the alveoli compared to the
blood. *
A.higher
B.Lower

Answers

Answer:

the oxygen should be concentrated in the alveoli

Explanation:

Diffusion: The movement of molecules from a region og higher concentration to a region of lower concentration.

So when the Oxygen is concentrated in the alveoli only then it can move towards the blood

Diffusion is a passive transport system which means it doesnt need energy in the form of atp molecules

if the molecules move from a region of lower concentration to a region of higher concentration it needs atp molecules which is energy and is called active transport system

The answer should be "HIGHER."            

Which of the following is the most likely reason the Moon can NOT support life?
А
It has many craters, indicating that it has an atmosphere too weak to protect life
B
It has many craters, indicating that is has a magnetic field too powerful for life.
С
It has many dark spots, indicating volcanic activity too extreme for life.
D
It has many light spots, indicating frozen ice that is too cold for life.

Answers

Answer:

A

Explanation:

B is not true because the amount of craters does not indicate how powerful the magnetic field is, it indicates how much gravity there is.

C is not true because the dark spots are igneous rock, dried lava. That means that there WAS volcanic activity, in the past.

D is not true because the light spots on the moon are not ice, they are simply a lighter colored rock.

A is true because meteors will burn up in the atmosphere of planets because of friction, so not all the meteors will hit said planet. But if there isn't an atmosphere, all of the meteors will hit that planet. (or in this case, moon)

can you keep a fly as a pet???

(there is one sitting on my leg and wont move)
its kinda cute not gonna lie

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sure!:) give it some fruit

Answer:

yes u can

Explanation:

:3  *aww wonderful pet than*

Which of the graphics best represents an animal cell? !!!THIS IS URGENT!!!​

Answers

Answer:

A

Explanation:

It’s Red

Answer: A

Explanation: Animal cells don't have cell walls like cell B does, so it has to be A.

Which health issue can be caused directly by a mutation resulting in a continuously growing and dividing cell?

Answers

Diabetes Is the answer
The answer is cancer

Help I don’t get it the last one says negative

Answers

Answer:

Negative (Fourth Choice)

Explanation:

According to the question, it says "The flow of electrons is electricity." if the question talks about the electrons, then they are negative, because electrons are negatively charged.

A starch molecule is like a:

Answers

Answer:

A reservoir of energy

Answer:

chemical battery and reservoir of energy

Explanation:

Which of the following comparisons is ACCURATE?
Carbohydrates and lipids contain the same elements in different ratios or
proportions.
Lipids and nucleic acids are both built from amino acids.
Proteins are built of nucleic acids and DNA is built of amino acids.
Saturated fats are another name for polysaccharides.

Answers

Answer:

4ygfhjvffhjvrjffhdhehr

Answer:

It's the first one. Carbohydrates and lipids contain the same elements in different ratios or  proportions.

Q 13. How will you describe the sequence of oxygen, carbon dioxide, anu
flow in your own words?

Answers

Answer:

Our body requires oxygen to complete it's all metabolic processes this demand of  oxygen is fulfilled by oxygen carrier component present in the blood called Hemoglobin (HB). It binds with the oxygen that reaches from lungs to the heart, deoxygenated blood i.e. the blood that carries carbon dioxide with it, is converted into oxygenated blood and circulated throughout the body.

why are photosynthetic organisms found only near the surface of the oceanic zone​

Answers

Answer:

Because they need light, phytoplankton live near the surface, where enough sunlight can penetrate to power photosynthesis.

Explanation:

An independent variable is-

Answers

Answer:

A variable (often denoted by x ) whose variation does not depend on that of another.

Explanation:

Think about it like this can you control how you sleep before the test? Or can you control the test score? Hope this helps you!

Is it possible for you to be more related to one grandparent than another?

Answers

Answer:

No because you should get half the DNA from your parents meaning you should be related to the grandparents equally

Answer:

The question isn't clear, can you restate it ?

Explanation:

A person is admited into the hospital an unknown ailment. The patient is seen by Triage and immediately put on intravenous liquid or more commonly known as an IV by a brand new nurse
Unfortunately for the patient the nurse did not property prepare the IV and hooked the patient to an IV fluid line consisting only of distilled water.

What will mostly likely occur to this patient’s red blood cells if the IV dispenses its contents in its totality?

A) The environment in the patient’s blood will be isotonic if the cells and their environment have reached equilibrium, cells will remain the same size.

B) The environment inside and outside the patient’s cells will be isotonic and may cause the cells to burst.

C) The environment around the patients cells will be hypotonic and cause the cells to shrink.

D) The environment inside the patient’s cells will be hypertonic and may cause the cells to burst.

Answers

answer: c
explanation:

Compare and contrast Meiosis and Mitosis, how are they similar and how are they different?

Answers

Answer:

Cells divide and reproduce in two ways, mitosis and meiosis. Mitosis results in two identical daughter cells, whereas meiosis results in four sex cells.

Answer:

1. meiosis require two nuclear division but mitosis requires only one nuclear division  

2. meiosis produces four daughter divisions, and there are four daughters cell following cytokinesis. Mitosis followed by cytokinesis result in two daughter cells  

3. in meiosis, the four daughter cells are haploid and have half the chromosome number as the parent cell. In mitosis, the daughter cell have the same chromosome number as the parent cell  

4. in meiosis the daughter are genetically dissimilar to each other and to parent but in mitosis, the daughter cells are genetically identical to each other and to the parent.

Explanation:

Which correctly lists the three features of Earth that are the main types of landforms?

A. hills, valleys, and plateaus
B. lakes, valleys, and mountains
C. mountains, plains, and plateaus
D. plains, lakes, and hills

Answers

Answer:

c

Explanation:

because it has all the types of features of earth

They even impact which military sites are most effective at defending a given area. Thus, option C is correct.

What different landforms on earth that affect function?

The four main types of landforms are mountains, hills, plateaus, and plains. Buttes, canyons, valleys, and basins are examples of minor landforms. Mountains and hills can be pushed upward by tectonic plate movement under the Earth.

The various natural sceneries on the world are produced by landforms. They serve as homes for both animals and people. A place's topography is composed of its landforms.

All people's lives depend heavily on landforms. They have an impact on a region's cultural history, societal development, food production, housing options, and architectural and building choices.

Therefore, because it has all the types of features of earth.

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Which characteristic makes a cell membrane selectively permeable?

the thickness of the membrane
the chemical nature of the membrane
the rigid nature of the membrane
the smooth outside of the membrane

Answers

Answer:A selectively permeable cell membrane is one that allows certain molecules or ions to pass through it with active or passive transport.

Explanation:

Part B
Locate the lines of longitude that run from north to south, or vertically, on the map ©. Then answer the following
questions.
Question 1
What is the alternate name for 0° longitude?

Answers

It’s the prime meridian

What is the key to maintaing water purrification services?​

Answers

includes a selection of instructional tips and activities in the boxes.

What are genetic variations? First answer gets brainliest! Please help

Answers

Answer:

Genetic variation refers to differences in the genetic makeup of individuals in a population. Genetic variation is necessary in natural selection. In natural selection, organisms with environmentally selected traits are better able to adapt to the environment and pass on their genes.

What is a small ecosystem in danger of compared to a large and diverse ecosystem?

Answers

Answer:

See the answer below

Explanation:

A small ecosystem is in danger when compared to a large and diverse ecosystem because the genetic variability in a small ecosystem is low and a small disruption can wipe out the populations within the ecosystem. This is unlike in a large ecosystem where this is a high genetic variability that gives the populations within the ecosystem resilience against disturbances.  

There are enough alleles within the genetic pool of a large and diverse ecosystem to withstand disturbance regimes unlike in small ecosystems where the alleles are few. Hence, a little disturbance can endanger the entire population in a small ecosystem and put them at the risks of extinction.

Tina-Marie accidentally left her water bottle outside on a freezing, winter night. The next day, the water bottle, which is now filled with ice, ruptured. Based on her observations, Tina-Marie forms a hypothesis about freezing water and volume. Identify a hypothesis Tina-Marie can investigate. Then describe an experimental procedure for investigating the hypothesis.

Answers

Answer:

Hypothesis, Ice is less dense then water.

Explanation:

They could test this by attaining the density of ice and water, the density of Water is 1g/ml and if the ice floats that means ice is less then 1 g/ml which means ice is less dense. This is relevant to the water bottle because the Ice expanded due to it being less dense causing the water bottle to rupture

How might scientific knowledge about monoculture farming affect societal decisions? Please be sure to answer in complete sentences.

Answers

Answer:

People could choose to practice organic farming, heirloom plants, or use GMOs.

Governments could pass laws to limit the use of monoculture farming.

Governments could pass laws requiring people to use alternate farming methods

Explanation:

Answer:

People could choose to practice organic farming, heirloom plants, or use GMOs. Governments could pass laws to limit the use of monoculture farming.Governments could pass laws requiring people to use alternate farming methods

Which defines a biome as a desert

Answers

Answer: A desert is defined simply by the amount of rainfall that falls in an area in conjunction with the amount of evaporation. In essence, it's any area that receives on average less than 10 inches of rainfall per year, and where the yearly evaporation is more than 10 inches of rain a year.

PLS I need someone to upload a photo of the answer!

Answers

Answer:

See the file bellow

Explanation:

HELP ANSWER NEEDED!! BEFORE 3:00!!

Answers

Answer:

1: C

2: B

3: C

4: C

5: B

6: False

7: False

8: True

9: False

10: False

Explanation:

Looked each question up and that’s what i got. hope this helps, good luck!!!!!

Question 1 of 25
An engineer is designing a tire for heavy machinery, Which statement
describes the clearest constraint that applies to the solution?
A. It must be affordable for consumers.
B. It must be designed so that it has an appealing appearance,
C. It must cost the consumer less than $200 per tire.
D. It must function safely under a heavy load,

Answers

Answer: C. It must cost the consumer less than $200 per tire.

Overuse injuries are a common issue many athletes and even everyday people face. I want you to research what an overuse injury is. What is an overuse injury? What causes overuse injuries? What are some symptoms that might be warning us that an overuse injury might occur? Are there any long-term consequences if we ignore these symptoms? How can we prevent it? What are some common overuse injuries? These are some suggestions about what you can research. I want 3 paragraphs due by the end of the day tomorrow.

Define regulating services in your own words

define providing services in your own words

Answers

Answer: did this

Explanation:

describe 3 ways our body is trying to maintain homeostasis while running

Answers

Answer:

Temperature. The body must maintain a relatively constant temperature. ...

Glucose. The body must regulate glucose levels to stay healthy. ...

Toxins. Toxins in the blood can disrupt the body's homeostasis. ...

Blood Pressure. The body must maintain healthy levels of blood pressure. ...

pH.

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