Unlike Darwin, Lamarck held that evolution was a constant process of striving toward greater complexity and perfection. Even though this belief eventually gave way to Darwin's theory of natural selection acting on random variation, Lamarck is credited with helping put evolution on the map and with acknowledging that the environment plays a role in shaping the species that live in it.
Lamarck believed that living things evolved in a continuously upward direction, from dead matter, through simple to more complex forms, toward human "perfection." Species didn't die out in extinctions, Lamarck claimed. Instead, they changed into other species.
How are igneous rocks classified?
A. by cooling rate
B. by size
C. by weight
D. by texture and composition
In roots the _____ forces water and solutes to pass through the plasma membranes of _____ cells before entering the _____.
You open a urine sample for testing and immediately detect a fruity odor. Which test result do you expect to be elevated using a urine dipstick
The test result that would be elevated due to the fruity odor is ketones.
What is urinalysis?Urinalysis is a chemical, physical and microscopical examination carried out on a urine sample. This can be used to detect a wide range of disorders such as:
urinary tract infections, kidney disease and diabetes.The dipstick method of urinalysis uses a stick that is made up of chemicals which are capable of detecting the following through a colour change:
Ketones,sugar,proteins,acidity, and blood.The presence of fruity odor in the urine sample signifies that there is excess ketone in the body due to ketoacidosis.
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1. What organism is essential for the nitrogen cycle to continue?
What does the bacterium use to move?
Answer:
Many bacteria move using a structure called a flagellum. Explanation:
4. Which group makes up most of the world's animals?
amphibians
mammals
fish
insects
Insects group makes up most of the world's animals due to large number of species.
Which group makes up most of the world's animals?Insects in terms of numbers of species, insects represent the largest percentage of the world's organisms. There are more than 1 million species of insects that have been recorded and studied by scientists.
So we can conclude that insects group makes up most of the world's animals due to large number of species.
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Which of the following cell organelles is thought to have once lived as a free-living
cell with it's own DNA?
Cell membrane
Mitochondria
Viruses
Ribosomes
Answer:
Ribosomes here is your answer
Density independent factors are limited factors whose effect are
Answer:
Any cause that can affect the capacity of the species' population and not taking into consideration the density of the population is referred to as density-independent factors. These are considered as limiting factors that affect the population in cluster or apart. These factors came from physical and chemical development that affect per capita growth rate of the population. If such limiting factor will be suddenly unavailable for organisms to consume, such organism will perish that thereby affect the population size.
Hope this helps!
If you have any questions please ask.
if a cell needs 180 molecules of ATP to perform a function within the cell,home many molecules of glucose and oxygen will be needed. Include in your answer the equation for cellular resperation and how its used to calculate the answer
Answer:
Fill in the word that completes each sentence.
Food contains a sugar called
glucose
which is broken down in a process called cellular
⇒ respiration.
This process uses
⇒ oxygen
Explanation:
The equation for cellular respiration is:
Glucose + Oxygen → Carbon Dioxide + Water + Energy (ATP)
What is cellular respiration?
Cellular respiration is the process by which cells convert the energy stored in food molecules into a form that can be used by the cell, called adenosine triphosphate (ATP). This process occurs in the mitochondria of eukaryotic cells, and in the cytoplasm of prokaryotic cells.
To calculate how many molecules of glucose and oxygen will be needed to produce 180 molecules of ATP, we can use the ratio of ATP produced per molecule of glucose and oxygen consumed.
The standard ratio of ATP produced per molecule of glucose is 36 ATP per molecule of glucose. Therefore, to produce 180 molecules of ATP, the cell would need to consume 5 molecules of glucose.
The standard ratio of ATP produced per molecule of oxygen is 4 ATP per molecule of oxygen. Therefore, to produce 180 molecules of ATP, the cell would need to consume 45 molecules of oxygen.
So, the cell would need 5 molecules of glucose and 45 molecules of oxygen to produce 180 molecules of ATP through cellular respiration.
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Once alcohol is in the bloodstream it will reach the brain in:.
Answer:
30 minutes
Explanation:
I hope its right
it can reach the brain in one minute 20% of alcohol passes through your stomach to the brain
Which substance would be okay to come in contact with without the need for universal precautions according to OSHA's Bloodborne Pathogens Standard
Substances such as feces and nasal secretions can be contacted without the need for universal precautions.
What are OSHA's Bloodborne Pathogens Standard?The OSHA's Bloodborne Pathogens Standard requires that all human blood and certain human body fluids are treated as if known to be infectious for diseases such as HIV, HBV, Hepatitis B and C, etc.
This implies that personal protective equipments must be worn at all times when handling all human blood samples and this is known as universal precautions.
However, some substances such as feces, nasal secretions, sputum, sweat, tears and urine would be okay to come in contact with without the need for universal precautions.
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How do flowers attract pollinators
Answer:
Explanation:
Plants produce nectar to attract pollinators. As the pollinator moves from flower to flower collecting nectar, they are also moving pollen from flower to flower. Certain fruits and seeds will not be produced if their flowers are not pollinated.
Flowering plants need to get pollenDust-like grains that contain male sex cells (gametes) of flowering plants (angiosperms) and cone plants (gymnosperms). Pollen is made on the anthers of flowering plants. from one flower to another, either within a plant for self-pollination or between plants of the same species for cross-pollination to occur. However, pollen can’t move on its own, so animals or the wind (and water in rare cases) move the pollen for plants.
Which statement describes an event that occurs during glycolysis that contributes to the production of ATP?
A. Pyruvic acid is broken down to form carbon dioxide.
B. Oxygen molecules are broken down and converted into pyruvic acid.
C. High-energy electrons and hydrogen ions are passed to NAD+ forming NADH.
D. Carbon atoms in glucose are transferred to ADP, forming ATP.
Answer:
C. High-energy electrons and hydrogen ions are passed to NAD+ forming NADH.
Explanation:
The sixth step in glycolysis is the first of the two-energy-conserving reactions of glycolysis which results in the formation of ATP. This step involves the oxidation of glyceraldehyde-3-phosphate to 1,3-bisphosphoglycerate.
In the oxidation of glyceraldehyde-3-phosphate to 1,3-bisphosphoglycerate, high-energy electrons and hydrogen ions are passed to NAD⁺ forming NADH.
Glyceraldehyde-3-phosphate + inorganic phosphate + NAD⁺ ----> 1,3-bisphosphoglycerate + NADH + H⁺
The NADH produced in this reaction transports the high-energy electrons passed to it through the electron transport chain to produce ATP in oxidative phosphorylation.
what is photosynthesis
Answer:
plants make food with the help of sunlight, water n air is called photosynthesis
Explanation:
Answer:
It is simply a vital process that plants perform to produce oxygen and take in carbon dioxide
A plant specimen has seeds that are enclosed by a fruit. which type of plant is it? angiosperm gymnosperm monocot dicot
A plant specimen has seeds that are enclosed by fruit is a type of plant is called angiosperm.
What are Angiosperms?
Angiosperms are vascular plants. They have stems, roots, and leaves. Unlike gymnosperms such as conifers and cycads, angiosperm seeds are found in a flower. Angiosperm eggs are fertilized and grow into a seed in an ovary that is usually in a flower.
Thus, angiosperm a plant specimen has seeds that are enclosed by fruit is a type of plant.
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Scrapes are
in which the skin is rubbed or scraped away.
A. avulsions
B. lacerations
C. abrasions
D. cuts
SUBMIT
Which parts of the apple flower are related to pollination or meiosis?.
Answer:
the sepal
Explanation:
hope this helps!
Answer:
The part of an apple flower that produces cells by meiosis is the sepal. The sepal of the apple flower produces pollen, which contains male gametes
Explanation:
Seven times a number minus the number is -48. Find the number
Answer:
the number should be -(8)
Explanation:
7x-(8) = -56 - 8 = -48
The reason I put it in the format that I did is because if you just put -8, that means that you would multiply 7 by -8 and then instead of subtracting -8 from -56 you would be adding it to -56 so your answer would be incorrect. so by putting the negative outside of the parenthesis that means that the number isn't always going to be negative.
This may be wrong but I hope it helps.
What is the first organ to respond to an increase in blood glucose concentration?.
Answer:
Pancreas
Hope it helps!
which statement best describes a pattern of reproduction exhibited by most aquatic vertebrates
Aquatic organisms have external fertilization and reproduction is done through mating of male and female.
How do aquatic vertebrates reproduce?All vertebrates reproduce through mating of male and female. Aquatic species generally have external fertilization, whereas terrestrial species usually have internal fertilization.
In conclusion, aquatic organisms have external fertilization and reproduce through mating of male and female.
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List some advantages the shark has due to the ability to maintain warmth
Answer:
go to the colder parts of the ocean
Explanation:
Mrs. Gray's class has built an electrical circuit. They need to complete the circuit by adding an object that will allow electricity to flow through it easily. One student suggests that they use rubber.
Will the student's suggestion work?
A.
Yes. Rubber is a conductor.
B.
Yes. Rubber is an insulator.
C.
No. Rubber is an insulator.
D.
No. Rubber is a conductor.
The coefficient of viscosity of blood is directly proportional to the frequency of interactions of erythrocytes with the vessel walls. As blood enters small vessels, many erythrocytes tend to flow in the center of the vessel. Given this information, which graphic best describes the effect of vessel diameter on the coefficient of viscosity?.
The coefficient viscosity is the resistance for blood to flow. There is a direct relationship between vessels diametre and viscosity. In the attached files it is the graph that best describes this relationship.
What is blood viscosity?
Viscosity is the property of fluids to resist the tangential displacement of molecule layers.
Blood viscosity refers to the resistance for blood to flow. Blood viscosity depends on the blood density and the vessel diameter.
Viscosity increases when the number of blood cells increases and when more cells get in contact with vessels walls.The more viscose is in the blood, the greater resistance there is to move it, and the more blood pressure it requires to flow through vessels.
Viscosity decreases when blood velocity increases.According to this framework and to the problem statement, we could assume that
smaller vessels ⇒ faster flow ⇒ less wall resistance → less vistositybigger vessels ⇒ slower flow ⇒ more wall resistance → more viscosity
In smaller vessels, blood flow is greater and more cells move in the center, leading to fewer cells interacting with walls. There is higher pressure and less resistance for blood to flow.
In bigger vessels, blood flow is slower, and more cells are interacting with each other and with the vessel walls. There is lower pressure and more resistance for blood to flow.
Since the coefficient of viscosity is directly proportional to the frequency of interactions of erythrocytes with the vessel walls, we can assume that blood flowing through bigger vessels express a higher coefficient of viscosity than blood flowing through smaller vessels.
In the attached files you will find an image representing the relationship between the coefficient of viscosity and vessel diameter.
You should compare this image with your images and choose the correct one.
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Which of the following is a right NOT guaranteed to workers by the Occupational Safety and Health Administration Act?
right to take safety training courses
right to a be paid certain wage
right to be informed about workplace hazards
right to review their medical records
Answer:
I want to say option D: right to review their medical records. Sorry if my answer is wrong
Right to review their medical records is not guaranteed to workers by the Occupational Safety and Health Administration Act. Hence option 4 is correct.
What is health administration?Health administration is defined as the administration of all non-clinical tasks necessary to run a healthcare facility, including daily management, staffing, budgeting, and financial management as well as long-term strategic planning to assure the success of the healthcare provider or system. With an MBA, students can get the knowledge and abilities necessary to succeed as business managers.
All employees are granted three essential rights under the Occupational Health and Safety Act: the right to information about health and safety issues. the right to take part in choices that can influence their health and safety. the ability to decline tasks that would endanger their health, safety, and the welfare of others.
Thus, right to review their medical records is not guaranteed to workers by the Occupational Safety and Health Administration Act. Hence option 4 is correct.
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Which is an example of how the body maintains homeostasis?
A. increasing thirst when cells are low on water
B. decreasing thirst when cells are low on water
C. shivering when it is hot
D. sweating when it is cold
Answer: A
Explanation:
Homeostasis works to promote balance in the body.
Answer:
The answer is A Increasing thirst when cells are low on water
sry if I'm wrong
Explanation:
Is water living (biotic) or non-living (abiotic)? *
O Biotic
Abiotic
Select the correct location on the image. Keiko’s teacher was discussing the theory of endosymbiosis. She asked Keiko to mark the organelles in the diagram that most closely resembled prokaryotes. Which organelles should Keiko mark?.
Mitochondria in animal cells, while mitochondria and chloroplast in plant cells most closely resembled prokaryotes.
What do you mean by endosymbiotic theory?This theory states that organelles such as mitochondria and chloroplast in eukaryotic cells were once prokaryotic microbes.
These organelles when occupied in prokaryotes divide by binary fission. But they become a part of the eukaryotic cell now and result in a symbiosis relationship between each other.
Therefore, Mitochondria in animal cells, while mitochondria and chloroplast in plant cells most closely resembled prokaryotes.
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11. What are some of the characteristics of Alkali Metals?___________________________________________
_______________________________________________________________________________________
12. Which group is inert or non-reactive? ________________________________________________________
13. Which group is known as Alkaline Earth Metals? ________________________________________________
14. What are some characteristics of Group 2? _____________________________________________________
________________________________________________________________________________________
15. What is group 17 known as? _________________________________________________________________
16. What are some characteristics of Group 17? _____________________________________________________
_________________________________________________________________________________________
17. What name is given to group 18? ___________________________________________________________________
18. What are some properties of group 18? ______________________________________________________________
19. What happens to an atom’s mass as you move from left to right on the periodic table? ____________________________________
20. As you move from left to right across a row of elements in the periodic table what happens to the number of protons and neutrons? ______________________________________________
1 18
2 26
3 7
4 same number of electrons
5 Si Te Sb B Ge Po As
6 metalloids
7 Shiny, brittle, solids, good electrical conductors
8 group1 except for hydrogen
9 lustrous, malleable, ductile, good conductors of heat and electricity
10Alkali metals
11 High reactive metals.
Not found freely in nature.
Stored in a mineral oil solution.
Low melting points.
12 noble gases
13 Group 2A
14 have two valence electrons or the electrons furthest from the nucleus,
15 Halogen
16 Melting and Boiling Points (increases down the group)
Atomic Radius (increases down the group)
Ionization Energy (decreases down the group)
Electronegativity (decreases down the group)
17 noble gases
18Noble gases are colorless, odorless, tasteless, and nonflammable gases under standard conditions.
In the periodic table, the noble gases are arranged according to their boiling point.
19 are adding more protons and neutrons to the nuclei.
20 left of the staircase created by B, SI Ge, As, Sb, Te (metalloids), are all metals right are non-metals. Next the atomic number and therefore the proton number increase as you move from left to right B - 5, C - 6, N -7.
What do eukaryotes hate that prokaryotes do not have? Select all that apply
A. Ribosomes
B. Nucleus
C. DNA
D. Cell membrane
E. Cytoplasm
F. Membrane-bound organelles
Answer:
F. Membrane-bound organelles
Explanation:
Prokaryotic cells lack a nucleus and membrane-bound structures. Eukaryotic cells have a nucleus and membrane-bound structures called organelles.
cell division only happens during reproduction true or false
Answer:
TRUE
Explanation:
When cells divide, they make new cells. A single cell divides to make two cells and these two cells then divide to make four cells, and so on. We call this process "cell division" and "cell reproduction," because new cells are formed when old cells divide
Answer:
This is totally true.Please see explanation.
If you like my response, you can mark it as Brainliest.
Thanks!
Explanation:
Cell division is the process by which a parent cell divides into two or more daughter cells.
Cell division usually occurs as part of a larger cell cycle.
Mitosis is a process of nuclear division in eukaryotic cells that occurs when a parent cell divides to produce two identical daughter cells. During cell division, mitosis refers specifically to the separation of the duplicated genetic material carried in the nucleus.
Meiosis takes place in the reproductive organs. It results in the formation of gametes with half the normal chromosome number.