Why are seeds an evolutionary advantage for seed plants?
Seeds offer the embryo protection, nourishment, and a mechanism to maintain dormancy for tens or even thousands of years, ensuring that germination can occur when growth conditions are optimal. Seeds therefore allow plants to disperse the next generation through both space and time.
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Answer:
C. Seeds protect the plant embryo and its food source
Explanation:
took the test
A(n) _________ is a device that converts substances like
hydrogen and oxygen to electricity.
A) compact fluorescent
B) energy efficient
C) hybrid vehicle
D) consumer
E) fuel cell
F) mandated
Answer:
Explanation:
Answer
A fuel cell works on the principal of converting hydrogen and oxygen to electricity. It works on the principle of breaking down the hydrogen into a proton and an electron. When electrons have passed through a passage (having created electricity) they are united with elements in the atmosphere producing heat and electricity and water.
What three factors determine a person skin color?
Answer:
Melanin- Inside of Stratum Basale, yellow, brown, black made by melanocytes
Hemoglobin- Dermis capillaries create red from blood cells.
Carotene- Pigments colored yellow/orange.
In multicellular organisms, which term tells the highest level of cellular organization?.
Answer:
The organism is the highest level of organization.
How did the geographic distribution of religions in Europe in the 17th century impact colonies in the Americas?
OA. It led to each South American colony being made up of Protestant colonists.
OB. It led to each North American colony being made up of Catholic colonists.
OC.
It led to each colony having colonists that mostly followed a single religion
D.
It led to each colony having a government ruled by religious leaders.
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Answer:
It led to each colony having colonists that mostly followed a single religion. Can I get brainliest please!!
Explanation:
23. An unknown solution is colorless when tested with phenolphthalein but causes the indicator phenol red to turn red. Use this information to find the approximate pH of this solution.
Phenolphthalein is a weak acid and is colorless in solution. It is generally used to find out the endpoint of titration. As the An unknown solution is colorless when tested with phenolphthalein but causes the indicator phenol red to turn red it indicates the pH of the solution is 8.0 or above.
What is phenol red?Phenol red is an indicator whose color can exhibit a gradual transition from color yellow to red.
Phenol red is actually a water-soluble dye as is used as a pH indicator, changing from yellow to red over pH 6.6 to 8.0.
Thus, it can be concluded that the pH of the given unknown solution is in range 8.0 or above.
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How far is 1mile in feet
Answer: 5,280 Feet
Explanation:
1 Mile = 5,280 Feet
A (n) _______ is a jet of hot liquid or steam shooting out of earth’s crust.
A) biomass
B) ethanol
C) geothermal
D) geyser
E) peat
Answer:D) geyser
Hope this helps
How do Kepler’s laws describe planetary orbits?
1) Planets move in elliptical orbits with the sun at one focus.
2) Planets speed up when they are closer to the sun because of the sun's gravitational pull.
Select the correct answer from each drop-down menu. when a cat drops from a tree to the ground, the conversion of takes place. then cat runs up behind a mouse to obtain its food. after eating its prey, the conversion of takes place inside the cat’s body.
The correct answer from each drop-down menu is gravitational force, potential energy to kinetic energy, and then conversion of chemical energy to mechanical energy take place in this order.
What are the forms of energy conservation?During the energy transformation steps, when there is no frictional dissipation, we say that energy is conserved. That is, all potential energy is transformed into kinetic energy, and vice versa. The sum of the kinetic and potential energies of a system is called mechanics.
In this case, When a cat drops from a tree to the ground follows the gravitational force, while the conversion of up behind a mouse to obtain its food is the process of converting potential energy to kinetic energy. And at last, after eating its prey, the conversion inside the cat's body takes place the chemical energy to mechanical energy.
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state the difference between the synthesis and the breakdown of a protein. thanks!
Synthesis of protein is the building up of protein molecule while the breakdown of protein is the degradation of the protein molecule.
What is protein?Protein is one of the biological molecules that present in living organisms and contain it's building blocks known as amino acids.
The synthesis of protein is the process used by living organism to produce proteins from amino acids (that is the building block).
The breakdown of protein is the degradation of protein molecule which is also called catabolism.
Therefore, the difference between protein synthesis and breakdown is that synthesis of protein is the building up of protein molecule while the breakdown of protein is the degradation of the protein molecule.
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Which of the following could be left out of an electrical circuit?
the power source
the switch
the wire
the resistor
Answer:
The resistor
Explanation:
The resistor could be left out of an electrical circuit. The other three are the main requirements.
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In your own words wright a paragraph of the process of the circulatory system.
Which of the following is NOT a process farmers used long ago to increase the food supply?
A. used pesticides to protect crops from bugs
B. diverted streams for irrigation
C. domesticated wild animals and bred them
D. cleared forests for open land for crops
Answer:
b. diverted streams for irrigation
Using an analogy of a water balloon, describe the function of the bladder. (I'm terrible at biology lol)
4.. Which of the following best explains why
pulmonary arteries have lower oxygen
and higher carbon dioxide levels than
veins have?
(A) Pulmonary arteries have blood that has been
saturated by oxygen.
(B) Pulmonary arteries carry blog from the heart
to the lungs.
(C) Pulmonary veins carry
from the lungs
to systemic tissues.
(D) Pulmonary veins diffa their oxygen to
pulmonary arteries
(E) Systemic capillaries rculate blood to
pulmonary veins
ama Na
Laurie, after only 6 months gives birth to a daughter, allison. what are three complications that might be present in allison?
What calculators are allowed on the ap biology exam?.
Answer:
fourfunction, scientific, or graphing calculator
Explanation:
Excretion and the Kidneys The kidneys remove excess water, minerals, and other waste products from the blood. The cleansed blood returns to circulation. Each kidney has nearly a million processing units called nephrons. Filtration and reabsorption occur in the nephrons.
- Filtration is the passage of a fluid or gas through a filter to remove wastes. The filtration of blood in the nephron takes place in the glomerulus, a small, dense network of capillaries. Each glomerulus is encased by a cuplike structure called Bowman's capsule. Pressure in the capillaries forces fluids and wastes from the blood into Bowman's capsule. This fluid is called filtrate.
- Most of the material that enters Bowman's capsule is returned to circulation. The process by which water and dissolved substances are taken back into the blood is called reabsorption.
- A section of the nephron tubule, called the loop of Henle, conserves water and minimizes the volume of filtrate. The fluid that remains in the tubule is called urine.
For Questions 7-10, write True if the statement is true. If the statement is false, change the underlined word or words to make the statement true.
____________7. Each kidney has nearly a million individual processing units called capillaries.
Each kidney has nearly a million individual processing units called capillaries is false as the units are called nephrons.
What are the nephrons?
Nephron, processing unit of the kidney, the shape that certainly produces urine withinside the procedure of doing away with waste and extra materials from the blood.
The nephrons paintings via a two-step procedure: the glomerulus filters your blood, and the tubule returns wanted materials for your blood and eliminates wastes. Each nephron has a glomerulus to clear out out your blood and a tubule that returns wanted materials for your blood and pulls out extra wastes.
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When does the amount of photochemical smog peak?
a. dawn
b. midday
c. twilight
d. night
From what ive found it is morning and afternoon so I have no idea what to choose
What is true about one strand of DNA?
It contains many genes.
It contains many pieces of RNA.
It contains many chromosomes.
It contains many proteins.
Answer:
It contains many genes.
Explanation:
Genes are region in DNA that code for stuff. Thus, one strand of DNA has many genes.
What process governs the function of the respiratory surface?
"Now, gas exchange in the lungs refers to the movement of oxygen into the blood and carbon dioxide out of the blood. Oxygen and carbon dioxide move across what we call the respiratory surface, and that consists of an alveolar epithelial cell and a pulmonary capillary endothelial cell"
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Nondisjunction that leads to problems in offspring can occur in _____. meiosis II only mitosis meiosis I only meiosis I and II
Answer: The s cells
Explanation:
this is because meiosis in general can only happen in the presence of s cells
Lichens are important to the environment because _____
A) they decompose carbon dioxide
B) they produce large amounts of oxygen
C) they recycle nutrients into the environment
D) All of the above
Answer:
D- all of the above
Explanation:
A J-shaped curve can be associated with
a
exponential growth
b
biotic potential
c
unlimited resources
d
all of the above
If you placed blood tissue in a hierarchy pyramid, what hierarchical levels would go directly above and
below it?
O
Above: cardiovascular system
Below: heart
Above: heart
Below: organ system
Above: heart
Below: red blood cells
Above: cardiovascular system
Below: red blood cells
If you were to place blood tissue in a hierarchical pyramid, the hierarchical levels would be directly Above: cardiovascular system, Below: heart
What is the cardiovascular system?The cardiovascular system is made up of the heart and blood vessels. The heart works like a pump, allowing blood to be pumped. Arteries are blood vessels that carry blood from the heart to the body. Veins are blood vessels that ensure the return of blood to the heart.
With this information, we can conclude that if you were to place blood tissue in a hierarchical pyramid, the hierarchical levels would be directly Above: cardiovascular system, Below: heart
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What are some environmental advantages of building green? (Site 1)
Answer: Hope this helps.
Explanation:
Mom has heterozygous Type B blood. Dad has heterozygous Type A blood. What is the probability of them having a child with Type O blood? Use the Phenotype/Genotype chart to do a punnett square cross. )
0%
25%
50%
75%
Answer: The answer is 50% percent
Explanation:
The parents type mixes and creates an O or a different blood type.
Which of the two sequences of rocks, a-d and e-g, was disturbed by crustal movements after its deposition?
Answer:
Sequence A-D was disturb by crustal movement after it was deposition. We have evidence in given cross section that sequence A-D was disturb by crystal movement just see above this sequence there is conglomerate bed which indicates it is uncomformity and that below uncomformity plane all beds are inclined so it clear evidence that sequence A-D got disturbance by crustal movement.
Explanation:
Sequence order and principal are given below.
one can order the event in any given cross section on the basis of apply some principal like order of super position, principal of cross cutting relationship, principal of inclusion, principal of original horizontality etc. Order of superposition tell us that if rock is undeformed then older rock would be at bottom and younger at top, principal of cross cutting relationship tell if some igneous body intruded in some rock layer so it mean that layer is older than age of intrusion.
why do cells need to regulate what goes in and out of them?
