Answers
Answer:
5. c. active transport of molecules across a membrane
6. b. osmosis
7. d. water entered the cells of the lettuce by osmosis
Explanation:
5. The diffusion of water does not involve the budding of the cell membrane. The production of proteins amino acids and asexual reproduction are unrelated to the movement of molecules across the cell membrane. Therefore, this is active transport of molecules across a membrane.
6. The diffusion of water from a high concentration to a low concentration of water across a selectively permeable membrane is called osmosis. Transpiration is the process by which water leaves plant cells. Active transport requires energy. Capillary action is when water moves as a result of adhesion/cohesion.
7. When water enters the cells by osmosis, the cells become more turgid, making the lettuce crisp.
Related Questions
The diagram below shows how matter flows among nonliving and living parts of an ecosystem.
food web in soil
Which statement describes matter flowing from a nonliving part of the ecosystem to a living part, then back to a nonliving part?
A.
Fungi in soil are eaten by nematodes, which are then hunted by centipedes.
B.
Carbon dioxide in air is taken up by trees, and then it becomes organic matter in soil.
C.
Ground beetles on the ground are eaten by birds, which die and become organic matter in soil.
D.
Carbon in organic matter is broken down by bacteria, and then it is eaten by nematodes.
Answers
''Carbon dioxide in air is taken up by trees, and then it becomes organic matter in soil.'' best describes matter flowing.
What describes flowing of matter from non-living, living and then non-living?We know that carbondioxide gas is non-living matter which is absorbed by trees for photosynthesis that are living and after the death of trees, their bodies turn into organic matter which is also non-living.
So we can conclude that ''Carbon dioxide in air is taken up by trees, and then it becomes organic matter in soil.'' best describes matter flowing.
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which structures are highlighted? which structures are highlighted? external occipital protuberances occipital condyles external occipital crests inferior nuchal line
Answers
The trapezoid-shaped bone called the occipital bone is where the back portion of the brain is located. The occipital bone, one of seven bones that make up your skull, is situated near the lower-back of the cranium.
The occipital bone serves a number of purposes. Its protection of your brain is its most crucial function. It safeguards the area of the brain responsible for processing vision. Additionally, it serves as the link between the brain and the spine.The occipital bones of an individual's skull will fuse together as they get older. Between the ages of 18 and 25, the centre of your skull's sphenoid bone and occipital bone will fuse together. The top of your head's parietal and occipital bones will then fuse together sometime between the ages of 26 and 40.
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Finish answering the box please
Answers
Answer:
the Soviet Union and U.S.A, Gemini VI, commanded by Mercury astronaut Wally Schirra and piloted by Tom Stafford, was supposed to have orbited on October 25, to rendezvous and dock with an Agena target vehicle. But the unpiloted Agena spacecraft blew up during launch that morning, stranding the crew waiting in their vehicle on Launch Complex 19.
Chris wrote a few steps to describe how carbon circulates between the ground and living organisms.
Step 1. Plants absorb carbon dioxide in the air through photosynthesis.
Step 2. Dead plants are broken down by decomposers.
Step 3. Carbon stays in the ground for long-term storage as fossilized carbon.
If step 1 is removed, which statement best describes the effects of this missing step on the carbon cycle?
A. More carbon is stored in plants for long-term storage.
B. Less carbon is available for long-term storage in the ground.
C. Less carbon is stored in atmosphere instead of plants.
D. There are more fossil fuels available for energy use.
Answers
Answer:
B. Less carbon is available for long-term storage in the ground.
Explanation:
because then the carbon stays in the ground
Answer:
B. Less carbon is available for long-term storage in the ground.
Explanation:
If plants do not remove carbon from the air, it stays in the air and does not end up as fossilized carbon in the ground.
Please help me on this is so confusing
A: December
B: march
C: June
D:September
Answers
Answer:
i think its december because the left side is shadowed because of the sun.
Hope it helps!
Can we get colored shadows? Why/why not?
Answers
Answer:
A shadow is an area where direct light from a relatively small source is blocked by some opaque object. If the source is genuinely the only light around, the shadow will be absolutely black, and will have no colour._______ are surroundings with high levels of exposure to industrial chemicals.
a. second-growth forests
b. point sources
c. old growth forests
d. rangelands
e. toxic environments
i’m leaning towards e but could use some help figuring this out :)
Answers
Answer:
E
Explanation:
Looked up all the other ones and they didn't quite match as much as e
A couple are expecting a baby. They already have a daughter.
a) What is the probability their next child will also be a girl?
b) Explain your answer.
Answers
Answer:
50/50
Explanation:
u never know if it will be a girl or a boy because it is natural to either one
HOPE THIS HELPS
Answer:50/50
Explanation:
it doesn't matter how many children you have or what gender they are you will always have a 50% percent chance
Describe the role of carbon in biological systems
Answers
Carbon is an important element that is necessary for the development and growth of the living organisms. It makes up the structure of living organisms.
Carbon having four valence electrons in it's outermost shell is able to bind with oxygen, nitrogen, and hydrogen to form biomolecules like carbohydrates, lipids, proteins, and nucleic acids. These biomolecules are involved in various processes in the living organisms like defense, reproduction, growth, photosynthesis, respiration, and others. These biomolecules are necessary for the proper functioning, growth, metabolism, and development of living organisms. Conclusion: Hence, carbon acts as an integral element that is necessary for structure and function of the organisms.Learn more about carbon:
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What do rock layers have to do with the age of the rock?
Answers
Explanation:
Geologists use the law of superposition to determine the relative ages of sedimentary rock layers.
Variation is caused by what two factors....????
Answers
Answer:
mutation,recombination of genes
how might differences in enzyme concentrations affect rates of photosynthesis and respiration?
Answers
Answer:
enzymes are biological catalysts which speed up the rate of biochemical reactions
Increasing the concentration of enzymes would speed up the rate of photosynthesis and respiration due to the fact that the enzyme substrate complex can occur on a much larger scale i.e. more enzymes would be able to bind with more substrates producing more Oxygen in the case of photosynthesis and more ATP in respiration
Decreasing the concentration of enzymes would have the opposite effects
The differences in enzyme concentrations affect rates of photosynthesis and respiration are process accelerators.
What enzymes are involved in photosynthesis?Enzymes such as Rubisco, sedoheptulose-1,7-bisphosphatase, aldolase and transketolase dominate the control of photosynthesis. Reductive fixation of CO2 requires ATP and NADPH and their concentrations in the stroma increase when chloroplasts are illuminated.
The chemical reactions involved in photosynthesis are controlled by enzymes . The temperature increases the number of collisions increases, therefore the rate of photosynthesis increases. However, at high temperatures, enzymes are denatured and this will decrease the rate of photosynthesis.
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How much DNA is required for testing?
20 nanograms, about 800 cells
10 nanograms, about 400 cells
5 nanograms, about 200 cells
1 nanogram, about 40 cells
1 picogram, about 10 cells
Answers
The amount of DNA required for testing can vary depending on the specific testing method and the laboratory's protocols. However, generally speaking, modern DNA testing techniques can work with very small amounts of DNA.
Here is a breakdown of the approximate DNA amounts and cell numbers you provided:
20 nanograms: This amount of DNA is typically sufficient for most DNA testing methods. It is estimated to be extracted from approximately 800 cells.
10 nanograms: This amount is also generally acceptable for DNA testing and corresponds to approximately 400 cells.
5 nanograms: While slightly less DNA, around 200 cells can still provide enough material for many DNA testing purposes.
1 nanogram: This lower amount of DNA, extracted from about 40 cells, may still be usable for some DNA testing techniques, but it could be at the limit of detection for certain methods.
1 picogram: This is an extremely small amount of DNA and would be challenging to work with for most DNA testing applications.
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The organs in the human body perform specific functions for survival.
Organ A delivers blood to the body
Organ B delivers oxygen to the body
Organ C delivers messages to the body
Which of the following correctly identifies the organs that perform each function above?
Organ A is the heart, Organ B is the brain, and Organ C is the lungs
Organ A is the heart, Organ B is the lungs, and Organ C is the brain
Organ A is the lungs, Organ B is the brain, and Organ C is the heart
Organ A is the lungs, Organ B is the heart, and Organ C is the brain
Answers
Organ A is the heart
Organ B is the lungs
Organ C is the brain
Because heart only delivers blood to lungs and other body tissues, Lungs input oxygen into the blood and brain sends signals and messages to the body parts.
This is the answer. Hope it helps you
Answer:
B) Organ A is the heart, Organ B is the lungs, and Organ C is the brain
Explanation:
2. Explain why uneaten strawberries will eventually rot. What is the ecological advantage of the factors
that cause this to happen?
Answers
Microorganisms like bacteria and fungi will eventually rot uneaten strawberries.
Why will uneaten strawberries eventually rot?Uneaten strawberries will eventually rot due to the presence of microorganisms like bacteria and fungi that break down the fruit's organic matter.
What is the ecological advantage of the factors that cause strawberries to rot?The ecological advantage of strawberries rotting is that the breakdown of organic matter creates nutrients that can be returned to the soil. These nutrients can then be used by other organisms, such as plants, to grow and thrive. Additionally, the process of decomposition helps to recycle and break down organic material, which helps to maintain a healthy balance in ecosystems.
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what is the definition of an oncofetal tumor antigen? a.an antigen found in a nonviable pregnancy. b.all of the answers are correct. c.an antigen derived from a reactivated fetal gene. d.an antigen which is not immunogenic. e.an oncogene fused to a fetal gene.
Answers
Definition - While fetal tissues and cancers both produce oncofetal antigens, adult tissues only produce them in very small amounts. An examination is done of the recognized oncofetal antigens.
Oncofetal antigens are chemicals that are produced by tumors as well as by fetal cells, however they are produced by adult tissues at much lower levels.
The oncofetal antigen alpha-fetoprotein (AFP) is helpful in keeping track of individuals with nonseminomatous testicular cancer and specific kinds of ovarian cancer.
stage 4 - commonly referred to as "secondary" or "metastatic" cancer, is when the disease has progressed to at least one additional body organ from the initial site.
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Which one of these is NOT a fingerprint ? A. Swirl B. Double Loop C. Radical Loop
Answers
Answer:
Radical loop
Explanation:
In which way is cellular respiration similar to photosynthesis?
a. they both make G3P
b. the both involve ATP
c. the they both involve chemiosmosis
d. all of the above
Answers
Answer:
if I am correct it would be b
Explanation:
within the spinal cord, which tracts carry motor signals down from the brain? multiple choice question. ascending descending commissural association
Answers
Within the spinal cord, descending tracts carry motor signals down from the brain.
Motor impulses are transmitted from the brain to the spinal cord through descending tracts. Due to their role in coordinating movement, they are also known as motor tracts.
These tracts can be divided into lateral and medial tracts based on how they are structurally arranged. Or, they can be separated into two main divisions based on their functional makeup: Extrapyramidal tracts and Pyramidal tracts.
Two interconnected neurons make up each descending tract. Together, they forge a connection between the brain's upper neural structures and the intended effector muscles. Upper motor neurons are first-order neurons (UMN). Lower motor neurons (LMN), also known as second-order neurons, leave the spinal cord and innervate skeletal muscles.
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A product that is no longer used is said to be _____.
coexisting
current
emerging
obsolete
Answers
Answer:
The correxr answer is obsolete
Answer:
the answer is obsolete
Explanation:
obsolute-no longer produced or used
What happens when organisms populate a new area and are isolated geographically from other populations of the same species?
Answers
Answer:
The geographically isolated population will acquire genetic differences that eventually will lead to its speciation
Explanation:
Geographic isolation is a biological process produced by the physical separation between organisms of the same species, which may be caused by different types of geographical barriers such as, among others, mountains, earthquakes, rivers, etc. Geographic Isolation produces genetic differences between the separated groups. Over time, these genetic differences will lead to the reproductive isolation of the new population, thereby leading to the formation of a new species in the course of evolution, in a mechanism referred to as speciation.
The ________ and ________ are part of the respiratory system. bronchi, thymus lungs, esophagus alveoli, trachea testes, ovaries
Answers
Answer:
Alveoli, trachea
Explanation:
Lungs are part of the respiratory system, but the esophagus is part of the digestive system.
Bronchi and thymus are part of the lymphatic system.
Testes and ovaries are part of the respiratory system.
what is one of the biggest threats to the coral reefs here in the raja ampat archipelago?
Answers
One of the biggest threats to the coral reefs in the Raja Ampat Archipelago is coral bleaching.
What are the biggest threats to coral reefs?The biggest threat to the coral reefs is coral bleaching.
Coral bleaching occurs when corals are subjected to stress factors such as increased water temperatures, pollution, or changes in water chemistry. As a result, the corals expel the symbiotic algae (zooxanthellae) living within their tissues, causing them to lose their vibrant colors and turn pale or white.
In Raja Ampat, rising sea temperatures due to climate change pose a significant risk to coral reefs. When the water temperatures exceed the corals' tolerance thresholds for prolonged periods, it triggers widespread bleaching events.
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which type of proteins move needed substances or waste materials through the plasma membrane?
Answers
Transport proteins help the plasma membrane transfer both necessary and unwanted molecules.
Proteins called "transport proteins" are responsible for moving materials across cellular membranes. In the membrane itself, transport proteins create a channel or a carrying mechanism that enables their substrate to move from one side to the other. Three different classes of transport proteins are involved in assisted diffusion: channel proteins, gated channel proteins and carrier proteins. A channel protein, a subclass of transport protein, functions as a pore in the membrane by rapidly allowing water molecules or tiny ions to pass. In order to move the specific solute being transported across the membrane, carrier proteins—also known as carriers, permeases, or transporters—bind the target solute and go through a sequence of conformational changes.
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5. Match the column
a. magnifying glass.
b. Amoeba
c. Ostrich egg
d. chloroplast
e. Mycoplasma
i) single celled organism
il) smallest cell
iii) plant cell
iv) largest cell
v) simplest microscope
Answers
Answer:
a-v
b-i
c-iv
d-iii
e-iv
Deforestation is a problem because it decreases biodiversity. Why does this happen?
Answers
Answer:
Deforestation is the clearing of a wide area of trees
Explanation:
This harms the environment because all of the forest-dwelling creatures lose their homes, their protection, and their food sources.
Answer:
destruction of habitats
Explanation:
Name one of the people who's work contributed to Darwin's Theory of Natural Selection. In 2-4 sentences discuss that individuals work. In another 1-2 sentences who did that individuals work contribute/ relate to Darwin's Theory..
Answers
Answer:
Jean Baptiste Lamarck
Jean Baptiste Lamarck
His work inspired Darwin's ideas of natural selection. Lamarck also came up with an explanation for vestigial structures. His evolutionary theory was rooted in the idea that life started out very simple and developed over time into the complex human form
Explanation:
Little hope of helping you
two animals have an identical seqence of amino acids in one of the protein found in their cells . what does this indicate ? a. they have been eating the same types of foods b. they have not been exposed to substances that cause mutation c. they must be members of the same genus d. they share an ancestor
Answers
The correct answer is d. they share an ancestor. When two animals have an identical sequence of amino acids in a protein, it suggests they share a common ancestor with a conserved genetic information.
When two animals have an identical sequence of amino acids in one of the proteins found in their cells, it indicates that they share a common ancestor. Proteins are encoded by genes, and the sequence of amino acids in a protein is determined by the DNA sequence of the corresponding gene. The DNA sequence is passed down from generation to generation through inheritance.
If two animals have the same sequence of amino acids in a specific protein, it suggests that the DNA sequence coding for that protein has been conserved over time, likely due to a shared ancestry. This conservation of the protein sequence indicates that the genetic information for producing that protein has been passed down from a common ancestor to both species.
On the other hand, options a, b, and c are not necessarily true based solely on the fact that two animals have an identical sequence of amino acids in a protein. The animals could have different dietary habits (option a), may have been exposed to different mutagenic substances (option b), and do not necessarily belong to the same genus (option c). Only the shared ancestry (option d) is directly indicated by the identical protein sequence.
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the __________ of a typical vertebra forms the rounded, central portion that faces anteriorly in the human vertebral column.
Answers
The human vertebral column is also referred to as the spine or spinal column.
The body / spinous process of a typical vertebra forms the rounded, central portion that faces anteriorly in the human vertebral column.
The human vertebral column is made of up a group or collection of bones called the vertebrae.In humans, we have a total of 33 vertebrae. In males humans, the vertebrae are said to be 71 cm long while in females it is 61 cm long.Therefore, the body / spinous process of a typical vertebra forms the rounded, central portion that faces anteriorly in the human vertebral column.
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Jorge is drawing an atomic model. The part of the atom that he has drawn is shown below. What does Jorge need to add to complete his atomic model?
Answers
Answer:
An atom is the smallest particle in a chemical element that holds its chemical properties. Although in the past it was thought impossible to break an atom, within modern chemistry we know that an atom is composed of subatomic particles, which compose the atomic model:
1) electrons, which have a negative charge, such a small size that it is immeasurable, and a mass much smaller than the other two subatomic particles; 2) protons, which have a positive charge; and 3) neutrons, which have no charge.
The protons and neutrons form a dense and massive atomic nucleus, which is called multipons nuclei. The electrons form a cloud of electrons that surround the nucleus.