which body system makes red blood cells?

A. single celled
B. multi celled
C. plant cell
D. animal cell
E. tissue
F. respiratory
G. transport system
H. nervous
I. digestive
J. muscular
K. skeletal
L. circulatory
M. cells
N. specialized
O. nutrients
P. grow
Q. respire

Natural selection occurs more prominently when there is competition for resources because competition creates selective pressures that drive adaptations and favor certain traits over others.

In any given environment, resources necessary for survival and reproduction, such as food, water, and shelter, are limited. As a result, individuals within a population must compete with one another to obtain these resources.

Competition leads to differential survival and reproductive success among individuals.

Those individuals with advantageous traits or variations that enable them to more effectively acquire and utilize resources have a higher likelihood of survival and producing offspring.

These advantageous traits can be physical characteristics, physiological adaptations, or behavioral strategies that provide a competitive edge.

Through natural selection, individuals possessing beneficial traits are more likely to pass on their genes to the next generation, while individuals with less favorable traits are at a disadvantage.

Over time, this process results in the accumulation of beneficial traits within the population, enhancing their overall fitness and adaptation to the specific environment.

Therefore, competition for resources acts as a driving force for natural selection by selecting for traits that enhance an individual's ability to secure limited resources, survive, and reproduce successfully.

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Answer: it raises the ph of your stomach.

Explanation:

1. Femoral nerve: lumbosacral plexus  L4 to S3

2. Tibial nerve: lumbosacral plexus L4 to L3

3. Median nerve:  medial and lateral cord of brachial plexus C5 to T1

4. Common fibular nerve:   lumbosacral plexus L4 to S2

5. Axillary nerve:           posterior cord of brachial plexus C5 to C6.

6. Radial nerve:  Posterior cord of brachial plexus C5 to T1

7. Musculocutaneous nerve:  lateral cord of brachial plexus

8. Ulnar nerve:      medial cord of brachial plexus C8 to T1

9. Obturator nerve:   lumbosacral plexus L2 to L4

The tibial nerve receives nerve fibers from the L5, S1, and S2 spinal roots. After separating from the common peroneal nerve, it passes through the popliteal fossa and runs deep between the two heads of the gastrocnemius muscle. The common fibular nerve, also known as the common peroneal nerve is a major nerve that supplies the lower extremities.

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Answer:

b, lachrymal.

Explanation:

lachrymal is an eye gland.

Answer:

b, i think

Explanation:

Answer:

1. False

2. True

3. True

Explanation:

Intramembranous ossification is a process by which flat bones are formed. This mechanism involves the development of the bones on the top of the skull. Intramembranous bones are developed by the differentiation of the mesenchyme cells into osteogenic cells which in turn become osteoblasts. Intramembranous ossification formation is completed by the end of the adolescent growth spurt. The spongy bone is a highly porous structure localized inside the bones which is lighter than compact bone, while bone marrow is a soft connective tissue localized within the spongy portions of bones.

Answer: D-Imported marmalade was expensive.

Explanation:

The statement which is a logical inference based on the details in the passage is the imported marmalade was expensive. Thus, the correct option is D.

In literature, a logical inference may be defined as a method that is utilized in natural hypothesis to withdraw the validity of statement forms from other statement forms by the use of proof rules.

The passage of the question describes the fact that marmalade is available on the table of wealthy people. Here, an author wants to convey that the imported marmalade was expensive.

Therefore, the statement which is a logical inference based on the details in the passage is the imported marmalade was expensive. Thus, the correct option is D.

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Answer: D  because candy is composed primarily of SIMPLE SUGARS which are quickly broken down by enzymes

Explanation: The sugar in it -- called a simple carbohydrate -- is quickly turned into glucose in your bloodstream. Your blood sugar levels spike. Simple carbs are also found in fruits, veggies, and dairy products.

Answer:

Your answer is D.

Explanation:

Our bodies use energy to all the alternativies in the sentence, being the affirmative true.

Answer:

Long/Yellow : 4, Long/Orange : 4, Short/Yellow : 4, Short/Orange : 4

Explanation: Use a punnet square.

It is very important to carry out the segregation of wastes so that we help the landfills not to fill up very easily and also to carry out much more recycling.

Waste refers to those materials which are no longer useful. We know that waste can be recycled and this would reduce the materials that are being extracted from the environment.

Having said that, it is clear that one of the ways in which waste can be taken care of in be dividing it into the wet and the dry waste. This is what we mean by the segregation of waste.

Now, it is very important to carry out the segregation of wastes so that we help the landfills not to fill up very easily and also to carry out much more recycling.

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Answer:

Increasingly erratic rainfall patterns can lead to declines in southeastern frog and salamander populations, but protecting ponds can improve their plight.Amphibians, which rely on water for part or all of their life cycle, must adjust to often atypical weather. Some years bring heavy deluges, such as the region's notorious hurricanes, and others bring the transformations that come with drought. Amphibians around the world seem to be experiencing the worst declines documented among vertebrates. While habitat loss is the number one reason for population declines, research suggests that disease, invasive species, contaminants and perhaps other factors contribute to declines in protected areas.

And then there's climate change, another stressor for amphibians to contend with. Climate change projections indicate that rainfall will increasingly come in pulses, with greater deluges and longer periods of drought. Scientists have long suspected that climate change is an important factor in amphibian declines, and resource managers are asking whether conservation measures might help species persist or adapt in a changing climate. Three recent U.S. Geological Survey studies offer some insight into the issue.

Explanation:

Answer:

Bees or similar inscets.

The incorporation of 14C from carbon dioxide into sucrose and its translocation through the phloem is an important process that helps to fuel growth and metabolism in plants.

Here is an outline of how 14C in carbon dioxide gas becomes incorporated into the sucrose molecules that are translocated in the phloem; Carbon dioxide is taken in by the leaves of the plant through small openings called stomata.

The CO₂ is fixed into organic molecules by the process of photosynthesis, which involves the conversion of CO₂ and water into glucose and oxygen.

The glucose molecules are converted into sucrose through a series of enzymatic reactions that take place in the cytoplasm of the leaf cells.

The sucrose is transported from the leaf cells into the phloem tissue, which is responsible for the translocation of organic molecules throughout the plant.

The 14C that was incorporated into the sucrose during photosynthesis is transported along with the sucrose through the phloem tissue.

As the plant uses the sucrose, the 14C is released and incorporated into other organic molecules in the plant's tissues.

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A plant that receives sunlight and water but not carbon dioxide will not be able to produce carbohydrates

The process whereby light photosynthesized can broadly be divided into 2:

The products from the light-dependent reactions are used to fix carbon dioxide into glucose in the light-independent reaction.

Thus, without carbon dioxide, the light-dependent reaction will take place normally while the light-independent reaction cannot because the major reactant is lacking.

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The polarity of water molecules is crucial to the formation and stability of cell membranes. Without this polarity, water would not be able to form hydrogen bonds, interact with polar molecules, or form stable cell membranes .

Water molecules are composed of two hydrogen atoms and one oxygen atom, and they have a slight negative charge on one end and a slight positive charge on the other.

This arrangement is due to the unequal sharing of electrons between the atoms, with the oxygen atom having a stronger pull on the electrons than the hydrogen atoms. This phenomenon is called polarity, and it is crucial to the unique properties of water.

First, water molecules would not be able to form hydrogen bonds with each other, which are crucial for many of water's unique properties. Hydrogen bonds occur between the positive and negative ends of different water molecules and give water its high boiling point, high surface tension, and the ability to dissolve many substances.

Furthermore, the polarity of water molecules is crucial to the formation and stability of cell membranes. The hydrophilic, or water-loving, heads of phospholipids are attracted to the polar water molecules, while the hydrophobic, or water-fearing, tails face away from the water.

In summary, the polarity of water molecules is crucial to many of its unique properties and is essential to many biological processes. Without this polarity, water would not be able to form hydrogen bonds, interact with polar molecules, or form stable cell membranes.

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Answer:

Mitochondria are the "powerhouses" of the cell, breaking down fuel molecules and capturing energy in cellular respiration. Chloroplasts are found in plants and algae. They're responsible for capturing light energy to make sugars in photosynthesis

Knowing the windchill factor can help a person determine whether it is safe to exercise outdoors in cold weather and what clothing to wear to avoid cold-related illnesses and injuries.

According to the definition, weather would describes the condition of the air outdoors, such as the temperature, cloud cover, wind speed, and rainfall.  

It has been important to consider that weather is different from the climate because climate has the average of the weather taken over longer periods of time.

Therefore, Knowing the windchill factor can help a person determine whether it is safe to exercise outdoors in cold weather and what clothing to wear to avoid cold-related illnesses and injuries.

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Santiago was in a rock climbing accident and suffered a head injury. He cannot remember what occurred immediately before the accident. Santiago's injury prevented consolidation of the events.

Memory consolidation is basically the process through which our brains happen to convert the short-term memories into the long-term memories. Short-term memory are very limited in terms of duration as well as the capacity. The human brain is only able to store the short-term memories which is for about 30 seconds of time so the memory has to be moved to a long-term memory so it can be remembered.

Since Santiago happened to suffer a head injury during a rock climbing accident and cannot remember anything before the accident, it means the memory consolidation did not take place due to the injury.

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it's D but I might be wrong

Answer:

C

Explanation:

In science, a hypothesis is an idea or explanation that you then test through study and experimentation. Outside science, a theory or guess can also be called a hypothesis.

Many scientists start with this as a need you make a prediction and base it around your experiment to prove your correct.

Hope this helped

(It could also be D but I'm more positive on C)

Answer:

Explanation:

23 because they only get half the chromesonses

Answer:

4

Explanation:

4 is the factor that trees need when they comnete for energy

When a homozygous premature gray-haired person is crossed with a homozygous normal-haired person, all the offspring will have the phenotype of premature gray hair.

In this scenario, premature gray hair is considered a dominant trait, while normal hair coloring is considered a recessive trait. A homozygous individual has two copies of the same allele for a particular gene.

In this case, the homozygous premature gray-haired person has two copies of the allele for premature gray hair (GG), and the homozygous normal-haired person has two copies of the allele for normal hair coloring (nn).

According to the principles of Mendelian inheritance, when a dominant allele is present, it will be expressed in the phenotype, even if the individual also carries a recessive allele.

Therefore, when the two individuals with the genotypes GG and nn are crossed, all the offspring (100%) will inherit one copy of the dominant allele for premature gray hair (G) from the premature gray-haired parent and one copy of the recessive allele for normal hair coloring (n) from the normal-haired parent.

As a result, all the offspring will have the phenotype of premature gray hair.

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Phospholipid bilayer

The diagram shows a plasma membrane, which is composed, among other structures, by a phospolipid bilayer.

AnsweR

D.

Explanation:

The biological concept of species states that a species is a group of organisms that can reproduce and produce fertile offspring. This concept was developed by Ernst Mayr.

According to the biological concept of species:

In conclusion, a species is represented by individuals that form a population whose members have the ability to interbreed and produce viable, fertile offspring (Option c).

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Answer:

tetanus

Explanation:

Tetanus causes a strong tonic contraction in skeletal muscles. This triggers a series of intermittent, progressive, and extremely painful muscle spasms. Tetanus is presented by patients who have stimulated a muscle too often, without allowing a moment of rest.

The main difference between guard cell and epidermal cell is their role; two guard cells form a stoma, controlling the gas exchange of the plant by regulating the size of the stoma whereas epidermal cells provide a protection to the plant from the external environment.

Explanation:

The guard cells are bean-shaped in surface view, while the epidermal cells are irregular in shape. The guard cells contain chloroplasts, so they can manufacture food by photosynthesis (The epidermal cells of terrestrial plants do not contain chloroplasts) Guard cells are the only epidermal cells that can make sugar.