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Answer:

All phospholipids have hydrophobic tails, consisting of the two hydrocarbon chains, and hydrophilic head groups, consisting of the phosphate group and its polar attachments. Consequently, phospholipids are amphipathic molecules, part water-soluble and part water-insoluble.

Answer:Cells of the digestive system are vastly different in structure and function from cells of the skeletal system. Cells of the body depend on each other to keep the body functioning as a unit.

Cells of the digestive system are  different in nature  and function from cells of the skeletal system. Cells are depend on each other to keep the body as a unit.

Cell theory is a scientific theory that's help to learn how living organisms are made up of cells, that's they are the basic structure unit of all organisms, and that all cells from pre-existing cells.

Types of cell:

Prokaryotic Cell

Prokaryotic cells are single-celled microorganisms known to be  earliest on earth.

Eukaryotic cell

Eukaryotic cells have a nucleus enclosed within the nuclear membrane and form large and complex organism.

The main difference between unicellular organisms and multicellular organisms is that unicellular organism is unspecialized it means all the body function depends upon only on the single cell and in multicellular organism there is specific cells for specific purposes.

Multicellular and unicellular organisms are perform almost all the life running activities and processes such as respiration, reproduction digestion, breathing, and metabolism.

In unicellular organism division of labour is at the organalle level on the other hand in multicellular the division of labour at cellular, tissue, organs and organ system level.

Unicellular organism has simple body organization and multicellular organism have complex body organism.

Therefore, Cells of the digestive system are  different in nature  and function from cells of the skeletal system. Cells are depend on each other to keep the body as a unit.

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Answer:

A

Explanation:

all the others make no sence

A. molding and changing one's environment

Life can be defined the condition that distinguishes animals and plants from inorganic matter, including the capacity for growth, reproduction, functional activity, and continual change preceding death.

Out of the given options the statements that comes under a property of life are:

B. regulating materials that enter or leave the system

C. responding to stimuli

D. maintaining a relatively constant internal condition

Thus, the statement which is not a property of life is molding and changing one's environment. Since we can't change one's environment or either mold it, i.e. option A.

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Answer:

Explanation:

 Why are layers of rocks related to each other?

Layering, or bedding, is the most obvious feature of sedimentary rocks. ... This Law of Superposition is fundamental to the interpretation of Earth history, because at any one location it indicates the relative ages of rock layers and the fossils in them. Layered rocks form when particles settle from water or air.

Answer:

Explanation:

A

Answer: B) Condensation :)

Explanation:

Answer:

C. evaporation!

Explanation:

water evaporates and goes up

Answer:

Ginning

Ginning: The cotton picked up from the plants has seeds in it. The process of removing cotton seeds from pods is called ginning. Ginning was traditionally done by hand. Now-a-days, machines are used in ginning.

Answer:

no because you want to become fat without doing any thing go read your textbok

you will find it on page 15  9 line 12 word Explanation:

Answer:

Yes

Explanation:

When you see, smell or think of food your brain sends signals to the glands responsible for saliva production. ... We salivate as a reflex to prefer for the consumption and digestion of food. Saliva is needed to keep your mouth and teeth healthy so keep drooling people!

Answer:

Apoptosis is defined as a programmed cell death and plays very important role in the removal of cancerous cells. Apoptosis is the process in which cell undergoes several processes and attempt sui-cide. Apoptosis do not cause any harm to human cells as it removes only unwanted cell.

Apoptosis can prevent cancerous cells by telling unwanted growth of cell to self destruct. Cancer cells are formed due to proliferation of cells and ignore the signals of self destruction to prevent apoptosis.

In Sally's case also, cancer cells ignored the signal of apoptosis and a tumor was found in her colon.

Answer:

because it does

Explanation:

Answer:

yes?

Explanation:

.............................

Answer:

For one to form, there needs to be warm ocean water and moist, humid air in the region. When humid air is flowing upward at a zone of low pressure over warm ocean water, the water is released from the air as creating the clouds of the storm. As it rises, the air in a hurricane rotates.

Explanation:

I hope it's help

Answer:

False

Explanation:

Important parts of circulatory system are heart, capillaries, veins, and arteries. The arteries are responsible for carrying red blood from heart and deliver oxygen to capillaries. Then capillaries deliver the waste carrying blood or deoxygenated blood to veins back to the heart.

But not all arteries carry blood with oxygen, the pulmonary arteries carry  deoxygenated blood and not all veins carry blood with carbon dioxide, the pulmonary veins carry blood with oxygen.

Hence, the given statement is true.

Answer:

Yes it does affect humans.

Explanation:

Natural selection acts on the phenotype, but evolution is a change in the frequency of alleles in a population over time, a change in genotype. So natural selection acts on phenotype, but it is the connection to genotype that makes it the mechanism of evolution. Many traits vary among different members of a population of humans and animals, from body size to hair color, and those differences are often linked to differences in genes. Natural selection occurs when some of those traits help some individuals survive and reproduce more than others. In scientific terms, these hazards are referred to as selection pressures. They put pressure on us to adapt in order to survive the environment we are in and reproduce. It is selection pressure that drives natural selection "survival of the fittest" and it is how we evolved into the species we are today.

Answer:

C)

US Wilderness Act

Explanation:

took the test and got it right!

Answer:

everything is important in your options which suits to biodiversity

a beacause this is just logic

Answer:

Explanation:

1. The fur in both parents is Black, they both have dominant traits

2. Phenotype in box 3 would be Black.

3. Genotype ratio is 1:3

Answer:

1/2N

Explanation:

took the quiz

Answer:

2N

Explanation:

I’m reviewing this with my teacher.

Answer:

Plants, algae and photosynthetic bacteria provide an energy source for a majority of the worlds ecosystems.

Explanation:

Answer:

interphase

Explanation:

Interphase is the most important phase of cell life cycle where it spends 90 percent its time in regulating the metabolic activities of the cell. In this phase cell undergoes several metabolic activities to maintain the growth of the cell.

There are three phases in interphase G1, S and G2. During this phase cell undergoes several changes that include  cell grows, DNA replicates and prepare itself for mitosis.

Hence, the answer is "interphase".

Answer:

D. seems like an appropriate answer since its true

Explanation:

Answer:

The Miller-Urey experiment was conducted to simulate the conditions on Earth when life arose, and see if a chemical evolution could occur. This experiment was performed without oxygen, because they knew that if oxygen was added, the amino acids would oxidize. In particular, the experiment intended to simulate a volcanic eruption was analyzed.

Thus, particles of water, methane, ammonia and hydrogen were exposed to high temperatures and electric discharges that simulated these eruptions, during a determined period. Later, it was observed that organic compounds had emerged from this exposure, which allowed us to infer one of the hypotheses regarding the origin of life on Earth.

Answer:

The process of photosynthesis converts light energy to stored chemical energy by converting carbon dioxide plus water into sugars plus released oxygen.

Answer:

From a mutation in the DNA of a gene

Explanation:

Answer:

If the sequence of one strand on DNA is CTA GCT CCA,  the complementary strand is GAT CGA GGT.

Explanation:

The DNA molecule has four nitrogenous bases in its structure, two purines —adenine and guanine— and two pyrimidines, cytosine and thymine.

The two DNA strands are linked by hydrogen bonds established between their complementary nitrogenous bases, where a purine is complemented by a pyrimidine.

In the case of DNA, adenine is complemented by thymine and cytosine is complemented by guanine:

A=T

C≡G

In the sequence belonging to a DNA strand CTA GCT CCA, the strand that is complementary would be GAT CGA GGT.