Answer: The cardiovascular system sends oxygen to the muscles.
Explanation: just took the biology quiz
The cardiovascular system helps the skeletomuscular system by supplying blood and oxygen to the muscles. So option B is correct.
The heart pumps the blood and the blood vessels deliver and return the blood. All tissues in the body receive oxygen and nutrients directly or indirectly from the blood that circulates through the circulatory system. A muscle is in the heart. It is a modified type of skeletal muscle known as cardiac muscle.
The cardiac muscle located in the heart, is an involuntary muscle, while skeletal muscle is attached to the bones and is voluntary. The cardiac muscle helps pump blood from the heart.
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Why is it so hard for a living tree to ignite, and
how may conditions in the atmosphere influence
this?
Answer:
Living trees have water circulating throughout the wood, however it is made easier by the atmosphere, since the tree has a lot more oxygen surrounding it. The tree would, even temperatures aside, be harder to ignite during winter due to more carbon dioxide surrounding the tree.
Explanation:
Due to its high water content, a living tree so it will not readily burn.
However, conditions such as drought may influence the ability of the tree to ignite.
What is combustion?Combustion is a reaction of a substance with oxygen in which heat and light is produced.
For combustion to take place effectively, there should be a heat source and a material that readily burns.
Water does not support combustion.
A living tree has high water content, so it will not readily burn.
However, in conditions of severe drought and thunderstorms, a living tree may ignite.
However, if there is constant rainfall, a living tree will not ignite.
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The diagram shows a food chain.
Which term best describes the green plant in the food chain?
A. Predator
B. Competitor
C. Consumer
D. Producer
Answer:
D,Producer
Explanation:
Hope this helps!
Answer:
D;producer
Explanation:
plants are usually the primary producers
In a density-dependent population, an increase in which of the following will most likely lead to an increase in population density?
Birthrate
Carrying capacity
Death rate
Emigration
Answer:
birthrate
Explanation:
In a density-dependent population, an increase in birthrate will most likely lead to an increase in population density. So, the correct option is A.
What is population density?Population density is the number of people in a given area of land. It primarily applies to people, yet occasionally it also does to other living things. That is a crucial geographic phrase. The amount of people who live in an area per square kilometer, or even other unit of land area, is referred to as population density.
We must divide the population's number by the area's size to determine the population density. Population Density is therefore equal to the number of people divided by the land area. Square miles or square kilometers should be used as the measure of land area. If we need to calculate the density of a relatively small place, then can use square feet or meters.
Therefore, the correct option is A.
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If a specific kind of protein is not continually used by a cell, the gene for that protein is _________________________.
Answer: what are the answer choices?
Explanation:
Answer:
The gene for the protein is turned on and off at different times.
Explanation:
The turning on and off of the gene is described as gene regulation. This process is important because it enables the cells to react quickly to the changes in the environment.
Note that , this process mostly occur at transcription level during gene expression , and help in determining the amount of protein made by a gene.
compare and contrast connective tissue and muscular tissue?
please no links
Which profession would YOU most likely see in your high school?
A. Counseling psychologist
B. Psychiatric social worker
Answer:
A
Explanation:
Genetic diversity is the raw material for evolution.
True or False
Help please :(
I need help what are plantea and animalia?
Answer: These organasims are both eukaryotic cells, so these 2 cells are capable to produce food by their own. The Plantae include familiar organisms such as trees, herbs, bushes, grasses, vines, ferns, mosses, and green algae. An animalia is one of the basic groups of living things that comprises either all the animals or all the multicellular animals, you can compare that to the plantae or protista.
Explanation:
Which statement about air is correct?
Answer:
Air is essential for all organisms
wich of the organic compounds (necessary for all living things) are responsible for storing and transmitting genetic information?
A.5-Carbon Sugar
B. Nucleic Acids
C. Phosfate groups
Explanation:
As I think ,Nucleic Acids is correct one.YOU CAN THINK ABOUT DNA.
Which two factors allow this cattail population to thrive in its ecosystem?
A. Adequate sunlight
B. A harsh, cold climate
C. Plentiful freshwater
D. Nutrient-poor soil
[tex]\huge\blue\star\color{magenta}{\boxed{\boxed{\mathfrak\color{cyan}{HELLO!}}}}\blue\star[/tex]
[tex]\huge\color{turquoise}{\boxed{\boxed{\sf\color{royalblue}{ANSWER\::}}}}[/tex]
Which two factors allow this cattail population to thrive in its ecosystem?
A. Adequate sunlightB. A harsh, cold climate
C. Plentiful freshwater
D. Nutrient-poor soil[tex]\large\color{hotpink}\star\color{turquoise}{\boxed{\boxed{\rm\color{cyan}{EXPLANATION}}}}\color{hotpink}\star[/tex]
A AND D!Adequate sunlight and Nutrient-poor soil are the two factors that allow this cattail population to thrive in its ecosystem.
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20. Frigatebirds have webbed feet and spend much
of their life flying over the ocean but never land in
the water. What does this fact suggest about the
evolution of these physical and behavioral traits?
Answer:
Evolution changes the abilities of the Frigate birds.
Explanation:
The Frigate birds have webbed feet because they live in the ocean and unable to fly due to its big weight. Before the evolution, the Frigate birds lives in the ocean due to their large body weight but with the passage of time, evolution occurs that leads to formation of flying ability in the bird so now the bird have the old characteristics of their ancestor as well as new abilities in the physical traits of the Frigate birds due to the evolution.
Genes contain the information needed to make _____ that form our traits.
is a layer where all weather phenomena occur.
Answer:
ITS A NO OR YES QUESTION SO NO gosh
Explanation:
does anyone know what the answer is??!
Answer:
no i don't know the answer
Answer:
thank you brown green brown green red yellow extra teeze
Explanation:
tRNA is responsible for interpreting the mRNA codons and bringing amino acids to the ribosome, in a word this process is known as:Required to answer. Single line text.
(2 Points)
Answer:
translation
Explanation:
fjdodkfksldmfnsks
3. Which structure protects the developing embryo of a beech tree?
A. cotyledon
B. cuticle
C. seed coat
D. stomata
Answer:
Seed Coat
Explanation:
what is rare type of blood ?
Negetives of any blood are rare but they are present.
How many dominant alleles does an individual have to inherit to show a dominant phenotype
Answer:
one allele
When a trait is dominant, only one allele is required for the trait to be observed. A dominant allele will mask a recessive allele, if present.
Hope this helped!!!
carbon continuously cycles through the biosphere, changing forms. Which of the following statements accurately describes the movement of carbon?
Answer:
A
Explanation:
Maybe b but most likely A.
what phenotype would a plant with the genotype Pp have?
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
Answer:
ocean currents
Explanation:
the ocean stores solar radiation and distributes heat
6. The largest lymph vessel is the
a. Lumbar trunk
b. Thoracic duct
C. Lymphatic duct
d. Intestinal trunk
Answer:
B. thoracic duct
Explanation:
I hope this helps
8. Two heterozygous purple flowered plants are crossed.
What percentage of the offspring are purple?
white?
Answer:
75% chance of purple, 25% of white
Explanation:
Heterozygous means having two different alleles of a gene
This must mean they are Purple dominant and white recessive
This will be represented as Pw
[tex]\left[\begin{array}{ccc} &P&w\\P&PP&Pw\\w&Pw&ww\end{array}\right][/tex]
This, called a punnet square, calculates the probability of the gene outcome. The top Pw represents one parent and the Pw on the left side represent the other.
In the diagram, each combo of letters ( PP, Pw, Pw, ww ) represents a 25% of what gene the offspring will have. PP means it'll be purple, and so does both Pw's. ww means white flowers though because there is no dominant trait and only recessive. This is the only way for a recessive trait to appear in a child.
Therefore there is a 75% chance of the offspring having purple flowers and a 25% chance of the offspring have white flowers.
Mothers may be encouraged to breastfeed their newborn babies. The first milk that a mother
secretes is called colostrum and contains antibodies.
(i) Name the cells that produce antibodies.
Answer:
Lymphocytes
Explanation:
do number 7 pls and thanks
Answer:
Keiko can put 144 blocks in the box. If you find the volume of the box, that is the number of blocks you can fit in the box. I found the volume by multiplying the length, width, and height together.
iodine 131 has a half-life of 8 days. if the amount of iodine 131 in a sample is 8 g how much iodine 131 will remain after 32 days?
Answer:
4g?
Explanation:
Not really sure but pretty sure.
Crossing over results in additional genetic variation during meiosis because it _____. Group of answer choices results in a greater number of offspring. is a lengthy process full of errors. allows the recombination of genetic information. is more common in higher order species.
Answer:
allows the recombination of genetic information
Explanation:
Crossing over is a process that occurs only in meiotic division in sexually reproducing organisms. It is the process whereby the segments of a gene are exchanged between the non-sister chromatids of homologous chromosomes.
Due to this crossing over process that occurs in prophase I of meiosis, the alleles of a chromosomes are recombined to ensure genetic diversity. Hence, according to this question, crossing over results in additional genetic variation during meiosis because it allows the recombination of genetic information.
how does the respiratory system deliver oxygen to the circulatory system?
Answer:
The respiratory system works directly with the circulatory system to provide oxygen to the body. Oxygen taken in from the respiratory system moves into blood vessels that then circulate oxygen-rich blood to tissues and cells.
Explanation:
brainliest pls
Viruses change at a very fast rate Can you use this information to explain why vaccines against a specific virus don't last forever ?
Viruses can multiply very quickly, and so they can go through natural selection at a much quicker rate, allowing certain vaccine resistant mutations to take over a population.