Answer: Dermis
Explanation: The blood vessels of the dermis provide nutrients to the skin and help regulate body temperature.
. A _____________________________________________ key is used to determine the identity of an organism
Answer: A dichotomous key is a tool that allows the user to determine the identity of items and organisms in the natural world. It is the most widely used form of classification in the biological sciences because it offers the user a quick and easy way of identifying unknown organisms.
Explanation:
How are the DNA strands organized
Answer:
They are all composed of building blocks called nucleotides that are linked together in a row. its two complementary strands are chemically linked together and are spiraling around counterclockwise, forming a ladder-like double-stranded molecule.
Explanation:
Many scientific explanations for the origin of DNA and life have been proposed over the years. These hypotheses explain how
inorganic molecules became organic monomers, such as amino acids, sugars, phosphates, and bases. But this still didn't explain
where living things came from. If macromolecules were able to form on early Earth, this still leaves us with the question of how
the polymers would have become self-replicating, a basic criteria for life. There are several ideas but little certainty. Some of the
common ideas include: the RNA world hypothesis, the genes first hypothesis, and the metabolism first hypothesis."
Which of these statements is proposed by the genes first hypothesis?
A)
RNA is highly stable.
B)
The first life forms were self-replicating nucleic acids, such as RNA or DNA
RNA is able to store and pass on genetic information.
D)
RNA contains less nitrogen bases than DNA and thus, is a simpler molecule.
E)
Ribosomal RNA (TRNA) and transfer RNA (TRNA) are the primary molecules
responsible for protein synthesis.
The first life forms were self-replicating nucleic acids, such as RNA or DNA, RNA is able to store and pass on genetic information.
What is the difference between RNA and DNA?There are two differences that determine DNA from RNA,
(a) RNA contains the sugar ribose, while DNA contains the slightly different sugar deoxyribose, and
(b) RNA has the nucleobase uracil while DNA contains thymine.
Thus, options, A and C are correct, RNA is adapt of both storing genetic data and catalyzing chemical responses.
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The maximum height of the largest peaks in the Himalayan mountain range exceeds 8000 meters, while the highest mountain peaks of the rocky mountain are slightly above 4000 meters. what explains the difference between the maximum heights for the two mountain ranges? select all that apply.
a) the rocky mountains are older and have been subjected to greater weathering erosion
b) the rocky mountains have formed more recently and have been subjected to less geologic deposition
c) the Himalayan mountains have formed long ago and have been subjected to more sedimentary deposition
d) the Himalayan mountains have more recently formed from geologic uplift as two continental plates collided
e) both mountain ranges were formed at the same time, but increased volcanic activity near the rocky mountains decreased their maximum elevation
Answer: A, D
Explanation: i just did it
The graph represents the distance a car travels over time while on the highway. Which statement about the car's trip is accurate?
A)
The car does not move over time.
B)
The car travels at a constant velocity.
The car's velocity increases constantly over time.
D)
The car's velocity decreases constantly over time.
Answer:
B
Explanation:
The chart is going up and up which means the car goes up and up in speed and velocity and is very consistant
The statement that is accurate regarding the car trip is that it travels at a constant velocity. The correct option is B.
What is velocity?Velocity is the pace and direction of an object's movement, whereas speed is the time rate at which an object is travelling along a path. In other words, velocity is a vector, whereas speed is a scalar value.
The rate of change of displacement is known as velocity. The rate at which velocity changes is called acceleration.
Due to the fact that it includes both magnitude and direction, velocity is a vector quantity. As the rate at which velocity changes, acceleration is likewise a vector quantity.
An object must move at a consistent speed and direction in order to have a constant velocity.
The object can only move in a straight line if the direction is constant. So, motion in a straight line at a constant speed is defined as having a constant velocity.
Thus, the correct option is B.
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If the parent is BbRr what are the possible gametes?
Answer:
BR
Because the first letter comes first
What process contains the enzymes that break the chemical bonds in your food in order to create usable energy?
Answer:
Cellular respiration
Explanation:
This is because cellular respiration is an aerobic process where the chemical bonds in food are broken down to release energy. This process produce energy which are useful for the body cells. Cellular respiration help to break down glucose. Glucose and oxygen are converted to carbondioxide and water and energy is released which form ATP.
Dr. Mrs. Brown has type O blood, according to the model what surface antigens does she have on her red blood cells?
Answer:
Explanation:
Dr Mrs Brown has now antigen on her red blood cells because Blood type Of are often refer to null because it has neither antigen A or B. Therefore it is null.
But blood type Of normally have both A and B antibodies in the blood cells.
I will mark Brainliest for frist answer
Answer:C, to contain the information
Explanation:
What phylum does green algae belong in
Answer:
Phylum Chlorophyta
Explanation:
hope this helps :)
Which of the following distinguishes the relationship between a taxon and taxonomy?
A taxon is an anomaly in the classification system known as taxonomy.
B taxon is a level of the classification system known as taxonomy.
C taxon is a specific trait in the classification system known as taxonomy.
D taxon is an unknown factor in the classification system known as taxonomy.
Answer:
B taxon is a level of the classification system known as taxonomy.
Hope this helps!
Which is the proper order of structures that contact the substances removed from the blood?
nephron → urethra → bladder → ureter
urethra → ureter → bladder → nephron
nephron → ureter → bladder → urethra
urethra → bladder → ureter → nephron
Answer:
Option 3
Nephron -> Ureter -> Urinary Bladder -> Urethra
Answer:
c
Explanation:
Which sequence furthers scientific knowledge? Hypotheses generate a scientific question, leading to observations, which can be tested through an experiment. Observations generate a scientific question, leading to a hypothesis, which can be tested through an experiment. Hypotheses generate a scientific experiment, leading to observations, which can be tested through a question. Observations generate a scientific experiment, leading to a hypothesis, which can be tested through a question.
Answer:
The correct answer is - Observations generate a scientific question, leading to a hypothesis, which can be tested through an experiment.
Explanation:
In any scientific knowledge development process, scientists need to follow the scientific process in a particular sequence that helps in developing and testing a hypothesis.
The sequence has:
observation: Observation requires you to pay attention to occurrences around
Forming question: on the basis of observation form a question about why that occurrence happens.
Hypothesis formation: The hypothesis is your initial prediction on why that happens.
Experiment: The experiment is being done in order to collect data and analysis so you can test your hypothesis
Answer:
Its b
Ur welcmom
Describe what happens to the egg in the ovary as the FSH level increases.
Answer:
The rise in follicle-stimulating hormone stimulates the growth of the follicle in the ovary. With this growth, the cells of the follicles produce increasing amounts of oestradiol and inhibin.
Hope this helps, good luck!
For each sequence of DNA is shown. Write the complementary RNA sequence underneath the letters, then use the codon chart to determine the amino acid sequence. DNA: ACA TTT CAG ACC GTG
Answer:
If youre doing the complementary RNA strand of DNA is would be for example
DNA: A T C G G
RNA: U A G C C
*remember that in RNA the A is complementary U instead of T*
so when you get that done you use every three letters of the *RNA* sequence and match it to the codon chart
Explanation:
i hope this helps!! btw can you help me with my rough draft i really need some help and i'll give you 30 0r more points for it
PLEASE HELP
The theory of plate tectonics is supported by evidence that crustal plates move relative to each other. How does this observation support the theory of plate tectonics?
It suggests that plates are dragged around by ocean currents.
It suggests that plates are dragged around by air currents.
It suggests that plates can move independently of one another.
It suggests that plates cannot move independently of one another.
Answer:
Its c the third answer
Explanation:
The offspring from asexual reproduced organisms are?
Answer:
Asexual reproduction produces offspring that are genetically identical to the parent because the offspring are all clones of the original parent. A single individual can produce offspring asexually and large numbers of offspring can be produced quickly.
Explanation:
(not sure if this is what you wanted)
How does acid rain (deposition) form and travel to effect the environment?
Answer:
The ecological effects of acid rain are most clearly seen in aquatic environments, such as streams, lakes, and marshes where it can be harmful to fish and other wildlife. As it flows through the soil, acidic rain water can leach aluminum from soil clay particles and then flow into streams and lakes.
Explanation:
Our weather forms in the
atmosphere, including rain and
snow. Which is MOST important in
the formation of weather?
water
nitrogen
Answer:
Water
Explanation:
Explain the lifecycle of mosquito in short
Answer:
Mosquitoes have 4 life stages: egg, larva, pupa and adult. Mosquitoes can live and reproduce inside and outside the home. The entire life cycle, from an egg to an adult, takes approximately 8-10 days. Hope this helps! :)
Which of the following statements about cell organelles is NOT true?
A. Chloroplasts contain chlorophyll and are the site of photosynthesis.
B. Many of the same organelles are located in both plant cells and animal cells.
C. The nucleus in an animal cell has a different primary function than in a plant cell.
D. The endoplasmic reticulum has several roles, including packaging and transporting proteins.
Answer:
B
Explanation:
many of the same organelles are located in both plants and animals cells
help-- multiple choice!
Biogenic sediment is made of at least 30 percent...
acidic chemicals
alkaline properties
limestone or other rock
skeletal remains
Answer:
The answer is the last one, skeletal remains
Answer: Skeletal remains
Which of the following descriptions is MOST plausible for an ancestor of bats? An animal with-
A: two limbs and webbed toes.
B: a long tail that ate insects and lived in forests.
C: four limbs and a membrane consistent with gliding.
D: four fins that glided through the water.
Answer:
C
Explanation:
Four limbs and a membrane consistent with gliding are the structures found in ancestors of bats. Therefore, option (C) is correct
What is patagium?A membrane called the patagium helps animals glide or fly. Bats, birds, dromaeosaurs, pterosaurs, gliding mammals, flying lizards, and flying frogs have the structure. The uropatagium (particularly in bats) or interfemoral membrane connects an animal's hind limbs.
Bats' wing skin extends from the abdomen to the tip of each digit, connecting the forelimb to the body. Bat patagiums have four parts:
Propatagium: neck-to-first-digit patagium.Dactylopatagium: digits.Plagiopatagium: between final digit and hindlimbs.Uropatagium: posterior flap between hindlimbs.Therefore, option (C) is correct.
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Select TWO processes that are MOST LIKELY to cause the variation in bird beak size traits within this
population
A. Asexual reproduction
B.Hibernation
C.Sexual reproduction
D.Migration
E.Mutation
The two processes that are most likely to cause the variation in bird beak size traits are ; ( C and E )
sexual reproduction ( C ) Mutation ( E )The Random Mutation occurring in birds due to the environmental factors and food availability in an area will to lead to the varying changes seen in the size of beaks of the bird within a population. long beaks are used to pick out food from cactus plants while short strong beaks are used to pick out food underground.
Sexual reproduction between birds with varying genes will lead to the formation of varying beak sizes traits seen within a given bird population.
Hence we can conclude that the two processes that are most likely to cause variation in bird beak size are ; sexual reproduction and mutation.
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Crossing over is a process during which chromosomal segments are exchanged between a pair of sister chromatids. True or false I have an exammm
Answer:
FALSE
Explanation:
An exchange of chromosome segments between non-sister homologous chromatids occurs is called crossing over.
How do large bodies of water affect the climate of a region?
Answer:
Large bodies of water, such as oceans, seas and large lakes, can affect the climate of an area. Water heats and cools more slowly than landmasses. Therefore, the coastal regions will stay cooler in summer and warmer in winter, thus creating a more moderate climate with a narrower temperature range.
Explanation:
Answer:
Large bodies of water, such as oceans, seas and large lakes, can affect the climate of an area. Water heats and cools more slowly than land masses. Therefore, the coastal regions will stay cooler in summer and warmer in winter.
Explanation:
I was supposed to answer but i wrote it as a comment instead'-'
1. Identify the basic characteristics of a house cat and explain why it belongs in the domain Eukarya and the kingdom Animalia?
Answer:
House cats have a nucleus in their cells which is why its in the domain Eukarya. It belongs in the Kingdom Animalia because it's an animal, classed in it.
Explanation:
What type of bond holds nitrogen bases together? And, how many of these hold Guanine and Cytocine together?
POSSIBLE POINTS: 8.33
Devon has cystic fibrosis or CF. It is an inherited condition that causes his body to produce excess mucus and lower than normal levels of digestive
enzymes. A person with CF often experiences the following symptoms:
frequent lung infections
poor energy level
low appetite
Although all of Devon's body systems are affected by cystic fibrosis, it is mainly a disorder of which two body systems?
circulatory and digestive
o digestive and skeletal
digestive and respiratory
circulatory and respiratory
Answer:
digestive and respiratory
Explanation:
Native vegetation determines the _________________________ and _________________________ of organic matter in the soil.
Answer:
Explanation:
Texture