Progesterone levels rise during the luteal phase of the ovarian cycle and the secretory phase of the uterine cycle. Menstruation occurs just after LH and FSH levels peak. Menstruation occurs after progesterone levels drop. Estrogen levels rise before ovulation, while progesterone levels rise after.
Number of gametes produced after meiosis:The diploid reproductive cell is a (n):
Answer:
Four haploid cells.
Explanation:
These reproductive cells are produced through a type of cell division called meiosis. During meiosis, a diploid parent cell, which has two copies of each chromosome, undergoes one round of DNA replication followed by two separate cycles of nuclear division to produce four haploid cells.
Hope this helps! Brainliest?? Anyways have a great day! :))
What are the levels of the energy pyramid called?
Answer:
Trophic level
Explanation:
A trophic pyramid shows where most of the energy in an ecosystem can be found. Each level is called a trophic level and as you move up trophic levels 90% of the energy is lost.
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HELP ME I NEED TO KNOW THIS PLEASEEEEEE (GIVING BRAINLIEST)
Match the organs to the system with which they are most closely associated.
Question 10 options:
cranium
small intestine
kidneys
lungs
arteries
spinal cord
adrenal gland
1.
Digestive
2.
Skeletal
3.
Endocrine
4.
Nervous
5.
Muscular
6.
Cardiovascular
7.
Excretory
8.
Respiratory
Answer:
cranium: skeletal system
Small intestine: digestive system
Kidneys: excretory system
Lungs: respiratory system
Arteries: cardiovascular system
Spinal cord: nervous system
adrenal gland: endocrine system
Explanation:
Answer:
cranium=2
small intestine= 1
kidneys=7
lungs=8 (maybe 6)
arteries=6(maybe8)
spinal cord=4
adrenal gland=3
A muscle cell has a solute concentration of 2% it is in a solution of 5% solute. What will happen
to the cell?
Answer:
But now you have two mixtures of different solute concentrations. In comparing two solutions of unequal solute concentration, the solution with the higher solute concentration is hypertonic, and the solution with the lower solute concentration is hypotonic
Explanation:
hope it helps :P
The cell will shrink as the solvent from low concentration solute will move towards the high concentration solute.
What is osmosis ?Osmosis is the spontaneous net movement or diffusion of solvent molecules through a selectively permeable membrane from a region of high water potential to a region of low water potential, in the direction that tends to equalize the solute concentrations on the two sides.
Since the solute concentration in the muscle cell is just 2%, and the muscle cell is dipped in a solution that contains 5% solute, the solvent will flow from the muscle cell into the solution. This will result in the muscle cell becoming smaller until the concentration of solutes on both sides is equivalent.
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why should we not view lactose intolerance as a disease in adult humans?
Answer:
Because lactose intolerance isn't a disease, it just mean the individual's stomach isn't able to digest the lactose found in milk.
Explanation:
Which statement describes the ability of the cell membrane to allow various substance to move through it?
The cell membrane is selectively permeable.
what are three functions that lipids serve in plants and/or animals?
Answer:
Lipids perform three primary biological functions within the body: they serve as structural components of cell membranes, function as energy storehouses, and function as important signaling molecules.
Que avances tecnológicos ha
propiciado la química en la
actualidad
Answer:
porque contigo yo ya escoji ara mi corazon ta sufri bien simple lang iyo tapidi ela cin titu el cosayoya cinti
What effect will boiling have on an enzyme's activity?
decreased active site due to changed shape
increased active site due to changed shape
O
less substrate due to increased product formation
o
more product due to increased molecular movement
Answer:
decreased active site due to changed shape.
Explanation:
With the rising temperature, chemical bonds between molecules of enzymes break resulting to alter the standard shape of enzymes. the active site no longer fits substrate molecules and thus the effect of enzymes decreases.
7. during metaphase, spindle fibers are attached to what part of the chromosome?
Answer:
centromere
Explanation:
How does this question represent the law of conservation of energy that energy cannot be created or destroyed? Consider the role of photosynthesis in your answer.
You need to put this into your own words, or else your school system will detect you copied from a source named Brainly.
Anyways, the law of conservation of energy is exactly what it says. Energy cannot be created nor destroyed. All they do is rearrange.
Now, for photosynthesis, it's an interesting thing. Photosynthesis takes the energy from the sun's light to produce sugars/carbohydrates. The sun's energy just got reused. It also uses water, which comes from the soil/ground. This simply, reuses the water. During photosynthesis, it also absorbs the carbon dioxide from the air. The carbon dioxide like everything else listed, got reused.
Meaning, energy does not leave. It endlessly works for different purposes. And as you should know, all of the water on the planet has been here since the dawn of time.
Hopefully this makes sense. Have a nice day!
explain a situation where someone could use ph test kits in your neighborhood
Answer:
TO TEST SUPPLY OF WATER QUALITY OF THE LOCALITY Excessively high and low pHs can be detrimental for the use of water. High pH causes a bitter taste, and water pipes.
Alkaline water turns red litmus paper blue. Acidic water turns blue litmus paper crimson. Pure or neutral water won't modify the litmus paper's color.Therefore, it can be used to test the quality of the drinking water.
What is pH?
A quantity that expresses the degree to which a substance or solution is acidic or basic. On a scale that ranges from 0 to 14, pH is measured. A pH value of 7 is considered neutral on this scale, which indicates that the substance in question is neither acidic nor basic. If the pH value is lower than 7, the substance in question is more acidic, and if the pH value is higher than 7, it indicates that the substance in question is more basic.
It is recommended that you consume water that is neither overly acidic nor overly alkaline, as well as water that is both clean and pure. The Environmental Protection Agency of the United States suggests that the pH level of drinking water should fall somewhere in the range of 6.5 to 8.5. The pH reading of the vast majority of ground and surface water should fall somewhere within this range.
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clusters of chlorophyll and accessory pigments are called ________.
Answer:
Photosystems
Explanation:
In all photosynthetic organisms studied to date, except one class of photosynthetic bacteria, light is captured by clusters of chlorophyll and accessory pigment molecules, which together are called photosystems.
Hope this helps :)
a population characteristic, such as a population mean, is called
Answer:
Parameter
Explanation:
Every Characteristic a population has is called a Parameter
name the three dimensional shape of the dna molecule
Answer:
The double helix
Explanation:
4. The stars at the edges of a galaxy are rotating around the galaxy’s center at the same speed as the stars in the middle of the galaxy. How does this provide evidence of dark matter?
Dark matter absorbs light from outside the galaxy, allowing the light of the stars in the galaxy to show the orbital speeds of the stars.
Dark matter emits the light that astronomers need to see the orbital speeds of the stars.
Dark matter subtracts gravity, which allows the stars to rotate at the same speed.
Dark matter provides the gravity that allows the stars to rotate at the same speed.
Answer:
Dark matter provides the gravity that allows the stars to rotate at the same speed.
Explanation:
The stars at the edges of a galaxy are rotating around the galaxy’s center at the same speed as the stars in the middle of the galaxy. How does this provide evidence of dark matter?
Dark matter absorbs light from outside the galaxy, allowing the light of the stars in the galaxy to show the orbital speeds of the stars.
Dark matter emits the light that astronomers need to see the orbital speeds of the stars.
Dark matter subtracts gravity, which allows the stars to rotate at the same speed.
Dark matter provides the gravity that allows the stars to rotate at the same speed.
Please don't use these answers to cheat they are for help.
The statement shows that D. Dark matter provides the gravity that allows the stars to rotate at the same speed.
According to the information given in the question, it should be noted that the stars at the edges of a galaxy are rotating around the galaxy’s center at the same speed as the stars that are in the middle of the galaxy.
This implies that dark matter provides the gravity that allows the stars to rotate at the same speed. It should be noted that dark matter doesn't emit the light that astronomers need to see the orbital speeds of the stars.
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6. The Edwards Plateau in west-central Texas is home to a diverse group of bats, reptiles,
and birds. How does the biodiversity of the Edwards Plateau affect the sustainability of local
ecosystems?
A. The variety of interactions among the different species helps the ecosystems remain
sustainable.
B. The variety of interactions among the different species prevents the ecosystems from being
sustainable.
C. The uniformity of interactions among the different species prevents the ecosystems from
being sustainable.
D. The uniformity of interactions among the different species helps the ecosystems remain
sustainable.
Answer:
A.
Explanation:
The higher biodiversity in an ecosystem means that there is a greater variety of genes and species in that ecosystem. A great variety of genes and species means that the ecosystem is better able to carry out natural processes in the face of external stress. Thus, the ecosystem is more sustainable.
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Please expain what is the simple diffusion and what does it do please?
Answer:Simple diffusion is basically the diffusion of substances through a membrane without needing the help from other substances, such as proteins. An example would be carbon dioxide gas for plants.particle or substance moves from higher to lower concentration
Pensamiento que tenga que ver con la ciencia
true or false? the endosperm in a seed develops into the embryo.
Answer:
the answer if false
Explanation:
the endosperm in a supply for the embryo
One of the carbohydrates is a building block of a plant's cell wall. It is
Answer:
hshdghdisuahzggdhxdhdnndnxhdj dhhdgdhdghdgdgehdyjebdjdhdydjshdjudydjdjdjxjxjdjdjdjdjdjdjdjdhdjdhydudueuhhcgduhxydjyduydjdhdyudjddhhdudusudidhdddfrdiiwousiisosooss
Answer:
cellulose is a building block of a plant cell wall
Explanation:
Segments of DNA transferred from parent to offspring are called
Answer: Genes
Explanation:
which statement best describes photosynthesis and respiration
Answer:
Easy
Explanation:
Photosynthesis turns carbon into oxygen, and respiration puts carbon back in the air
I need to connect each monomer to its polymer
What layer of skin is superficial to the dermal papillae?
Answer:
papillary layer
Explanation:
The papillary layer is the superficial layer of the dermis that projects into the stratum basale of the epidermis to form finger-like dermal papilla
which molecule is important in regulating cell membrane fluidity?
Answer:
cholesterol plays a distinct role in determining membrane fluidity.
Cholesterol has a specific impact on how fluid a membrane is. With their polar hydroxyl groups adjacent to the hydrophilic head groups of the phospholipids, cholesterol molecules enter the bilayer.
How does cholesterol regulate cell membrane fluidity?The phospholipid bilayer's random distribution of cholesterol molecules aids the bilayer's ability to remain fluid under a variety of environmental conditions.
Cells control membrane fluidity by modifying the lipid composition of the membrane. A lipid bilayer's fluidity fluctuates according to temperature. Lipid bilayers become more fluid, porous, or leaky at increasing temperatures (like butter melting on a hot day).
Cholesterol makes the cell membrane less fluid at higher temperatures and more fluid at lower temperatures.
Therefore, cholesterol is the chemical in the plasma membrane that has an impact on the fluidity of the membrane.
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Which of the following equations best represents conservation of matter?
Option 1: 6H₂O + 10CO₂ -> C₆H₁₂O₆ + 4O₂
Option 2: 3H₂O + 3CO₂ -> C₆H₁₂O₆ + 6O₂
Option 3: 6H₂O + 6CO₂ -> C₃H₆O₃ + 3O₂
Option 4: 6H₂O + 6CO₂ -> C₆H₁₂O₆ + 6O₂
Answer:
4
Explanation:
the scientific study of all forms of life is called
Answer:
life science/biology
Explanation:
it literally says it in the name
The thoracic cavity is ____ to the abdominal cavity
Answer:
The thoracic cavity is SUPERIOR to the abdominal cavity
Answer:
Superior
Explanation:
If you need more help on this assignment
*The Language of Anatomy Review Sheet 1* on Quizlet can help you
true or false? mitosis takes place during m phase, which is the longest phase of the cell cycle.
Answer:
False
Explanation:
Mitosis takes place during M phase of the cell cycle, which is longer than interphase. False. Although mitosis takes place in M phase, M phase is shorter than interphase; cells spend most of their time in interphase.