Place each feature into the appropriate category according to whether they are typical of xylem or phloem Sieve-tube elements Xylem Phloem Cells are dead at maturity Tracheids Vessel elements Lignified cell walls Relatively thin cell walls Cells living at maturity Transport water Transport sugars Companion cells Fibers that provide structural support
Answers
The studies shows that there is no significant difference in length between male and female newborns.The mean length for females is 21.1 inches with a standard deviation of 1.31 inches, while the mean length for males is 20.8 inches with a standard deviation of 1.13 inches.
Features Xylem Phloem
Cells are dead at maturity ✓
Tracheids ✓
Vessel elements ✓
Lignified cell walls ✓
Relatively thin cell walls ✓
Cells living at maturity ✓
Transport water ✓
Transport sugars ✓
Companion cells ✓
Fibers that provide structural support✓
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Related Questions
fill in the blank. _____ is the harmful form of cholesterol that helps to create plaques on the lining of the arteries.
Answers
Low-density lipoprotein (LDL) is a harmful form of cholesterol that helps to create plaques on the lining of the arteries.
Cholesterol is transported in the bloodstream through lipoproteins, which are composed of cholesterol, triglycerides, and proteins. Among the different types of lipoproteins, LDL is often referred to as "bad cholesterol" because it can contribute to the development of atherosclerosis.
LDL carries cholesterol from the liver to various tissues in the body. However, if LDL levels are elevated or if the LDL particles are modified or damaged, they can accumulate in the arterial walls. This leads to the formation of plaques, which are deposits of cholesterol, cellular debris, and other substances.
The presence of these plaques can narrow the arteries and impede blood flow, increasing the risk of cardiovascular diseases such as coronary artery disease and stroke. Therefore, it is important to maintain a healthy balance of LDL cholesterol to minimize the risk of plaque formation and related health complications.
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WRITE THE EVOLUTION ARIES OF MICROSCOPE WITH SUPPORTIVE INOVATIVE SCIENTIST.
Answers
Answer:
12345678910
Explanation:
trust me brooo
In mice, coat color is incompletely dominant. Black and white are homozygous. Brown mice are heterozygous. Cross a brown mouse with a white mouse. What is the possibility that the offspring could have the white coat color?
Answers
The possibility of production of mice with white coat color is 0% because all mice will be brown coated (Bb) due to incomplete dominance.
What is incomplete dominance?When both traits are not dominant over each other, then this is called incomplete dominance. For example, in mice, coat color is incompletely dominant. Black and white are homozygous. Brown mice are heterozygous.
When a black-coat mouse (BB) is crossed with a white-coat mouse (bb), then all offspring will be brown-coat mice (Bb) because of incomplete dominance. Therefore, the probability of the formation of white coat mice is 0%. The image is attached below.
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A student is studying the structural details of an animal cell, a plant cell, and a prokaryotic cell. He notes that a prokaryotic cell and a plant cell possess a protective cell wall. He also observes that both eukaryotic cells have membrane-bound organelles and are larger in size than the prokaryotic cell. Which other conclusion is also supported by the study?
Answers
Answer:
What are the answer choices?
Explanation:
If there are none, say that prokaryotic cells have a cell wall, large vacole and chloroplast.
how could a dog living now and a cat living thousands of years ago have in common
Answers
Answer:
They are both animals and both are mammals. I think that is what you mean.
Explanation:
Giving brainliest :}
Answers
humans have 46 chromosomes. the sperm and egg cell carry 23. I don't know the answer to the second im only in 9th grade and everything I answer is from the top of my head SORRYYY
Toxicants, such as organic compounds, may build up in an animal, in a process termed ___________.
Answers
Toxicants, such as organic compounds, may build up in an animal, in a process termed bioaccumulation. Bioaccumulation refers to the gradual accumulation and concentration of toxic substances in the tissues of an organism over time.
This occurs when an animal ingests or absorbs toxic substances from its environment faster than it can eliminate them. As a result, these toxicants can accumulate and become stored in various tissues and organs, including fat deposits. Bioaccumulation is a concern because it can lead to adverse health effects, including organ damage, reproductive issues, and even death. Additionally, bioaccumulated toxicants can be passed on to other organisms in the food chain through a process known as biomagnification, further increasing their potential for harm. Monitoring and reducing exposure to toxicants are crucial in preventing bioaccumulation and protecting the health of both wildlife and humans.
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Why is photosynthesis and cellular respiration considered a cycle?
In your 3-4 sentence response be sure to mention the following:
Reactants of the equations
Products of the equations
How the product is being made
Answers
Answer:
A cycle is a recurrent series of events. Photosynthesis and cellular respiration is considered a cycle due to the products of one process serving the reactants of the other. Photosynthesis: Glucose+oxygen makes carbon dioxide+water. Respiration: Carbon dioxide+water makes glucose+oxygen.
All cells have _____. (Select all that apply.)
Answers
Answer:
genetic material
protoplasm
cell membrane
etc
What are two conditioning agents that help restore moisture and elasticity to the hair shaft
A. protein and oils
B. melanin and biotin
C. protein and biotin
D. collagen and niacin
Answers
Protein and oils are two conditioning agents that help restore moisture and elasticity to the hair shaft.
Proteins, such as keratin and collagen, can help to strengthen the hair and reduce breakage, while oils, such as coconut oil, argan oil, and jojoba oil, can help to moisturize and soften the hair, making it more elastic and less prone to damage. Together, these conditioning agents can improve the overall health and appearance of the hair.
Melanin is a pigment that gives hair its color, and biotin is a vitamin that is important for healthy hair growth, but they are not conditioning agents that help restore moisture and elasticity to the hair shaft. Niacin is a vitamin that is important for healthy skin, but it is not commonly used as a conditioning agent for hair.
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More____ cattle will have less marbling
1.Aggressive
2. Passive aggressive
3. Passive
4.mellow
Answers
1. fatty acids2. amino acids3. phospholipids4. hydrogen5. peptide6. tertiary7. secondary8. rough endoplasmic reticulum9. ribosome10. Golgi apparatus11. vesicle
Answers
The production of antibodies inside the lymphocytes starts at the ribosome (organelle) by joining amino acids together, creating peptide bonds, and forming the primary level structure polypeptide. The polypeptide bends and folds tertiary in the Golgi apparatus (organelle), to form the next level of structure. For instance, the secondary level of structure is formed by hydrogen bonds to create alpha helix or beta-pleated formations.
In order for an antibody to be released into the blood, a fully formed antibody will move from rough endoplasmic reticulum (organelle) to another organelle named Golgi apparatus to sort and be processed for shipment out of the cell. Antibodies transport from organelle to organelle and to the plasma membrane in a vesicle, which is made out of fatty acids-phospholipids.
1. fatty acids
2. amino acids
3. phospholipids
4. hydrogen
5. peptide
6. tertiary
7. secondary
8. rough endoplasmic reticulum (organelle)
9. ribosome (organelle)
10. Golgi apparatus (organelle)
11. vesicle
Question 12 of 25
2 Points
How do plants absorb carbon dioxide?
A. By transpiration
B. By cellular respiration
C. By condensation
D. By photosynthesis
SUBMIT
Answers
Answer:
D
Explanation:
Plants absorb carbon dioxide by photosynthesis
Answer:
D
Explanation:
4. A scientist finds a rock with old microfossils in it, likely from around 4 billion years ago. Which
radioactive isotope should the scientist use to determine the age of the sample and why? (
se fosse uma pedra com 4 bilhoes de anos qual isotopo deveria de usar e porque?)
Answers
Answer:
U-238
Explanation:
the half-life of uranium-238 is about 4.5 billion years
Vhich of the following problems would be a direct result of humans building along the ocean shore zone?
O sand dunes and vegetation being disturbed
the erosion of the sand and soil from the shoreline
• the movement of sand from one place to another
sand being washed away over long periods
Answers
the erosion of the sand and soil from the shoreline
One main difference between light microscopes
and electron microscopes is...
Light microscopes can view both alive and dead organisms and electron
microscopes can only view dead organisms
Light microscopes only create 2D images and electron microscopes create both
2D and 3D images
Light microscopes use electrons to view the image and electron microscopes
use light
Light microscopes only produce black and white images and electron
microscopes only produce color images
Answers
Answer:
Elaborate please
Explanation:
When cerebrum is injured,a person becomes unconscious? Give reason.
Answers
Answer:Cerebrum injury leads to blurry vision and concussion leading to unconscious human being leading to persistent headaches.
Explanation:
Brain injury in general leads to concussion for several minutes and leading to worsening headaches. Skull may become swollen or filled with blood and brain tissue or cerebrospinal fluid. This leads to slow activity. Cerebrum damage can lead to every headache and low cognitive ability eventually.
Do ecosystems always stay the same? Explain
Answers
Help me please ASAP!
Answers
Answer:
2&4 are correct
Explanation:
hope this will help
During which years did the wolf population outnumber the moose population?
A. 1959-1968
B. 1976-1983
C. The wolf population has never outnumbered the moose population in this graph.
D. 1969-1974
Answers
Which of the following is an innovation of the first vascular plants? Seeds Roots Flowers Independent gametophyte Parent nourished embryo
Answers
The innovation of the first vascular plants that is included in the given options is roots.
The roots allowed these plants to absorb water and nutrients from the soil, which helped them grow larger and more complex. Additionally, vascular plants also developed the innovation of independent gametophytes, which allowed for sexual reproduction and genetic diversity. However, the other options listed are not innovations of the first vascular plants. Seeds, flowers, and parent-nourished embryos are innovations that developed later in the evolution of plants.
The innovation of the first vascular plants among the options provided is: Roots. The development of roots allowed vascular plants to anchor themselves in the ground and absorb water and nutrients, which contributed to their success and diversification.
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How has the soil of the Flatwoods region affected the region over time?
Answers
Flatwoods series soils are moderately deep and moderately well drained. They formed in weathered acid shale material in the highlands of the Great Valley. The slopes range from 2 to 15 percent.
Where is the Flatwoods region located?The Flatwoods physiographic region extends south of Houston, Chickasaw County, along the western edge of the Black Belt into Alabama, and ranges from three to fifteen miles wide (Lowe, 1919).
Which is Mississippi's least productive soil region?The gray soil of the Flatwoods is not fertile and it drains poorly; therefore, it is not conducive to cultivation. Although this area can sustain several varieties of upland hardwood, it is considered one of the least productive soil regions in the state.
With this information, we can conclude that the Flatwoods is formed in weathered acid shale material in the highlands of the Great Valley.
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Acute epiglottitis used to be caused by: a. Staphylococcus aureus b. Streptococcus pyogenes c. Corynebacterium pseudoinfluenzae d. Haemophilus influenzae
Answers
Acute epiglottitis used to be caused by Haemophilus influenzae.
Acute epiglottitis is an infection and inflammation of the epiglottis, a flap of tissue at the base of the tongue that covers the entrance to the windpipe (trachea) during swallowing to prevent food or liquid from entering the airways. In the past, Haemophilus influenzae type B (Hib) was the most common cause of acute epiglottitis in children. However, with the introduction of the Hib vaccine, the incidence of epiglottitis caused by Haemophilus influenzae has significantly decreased. Other bacterial pathogens, such as Streptococcus pneumoniae and Streptococcus pyogenes, can also cause epiglottitis, but they are less common than Haemophilus influenzae. Staphylococcus aureus and Corynebacterium pseudoinfluenzae are not typically associated with acute epiglottitis.
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dogs keep themselves cool by panting, rapidly breathing air in and out. panting results in evaporation from moist tissues of the airway and lungs, which cools the animal. measurements show that, on a 35∘c day with a relative humidity of 50%, a 12 kg dog loses 1.0 g of water per minute if it is panting vigorously.
Answers
Since water absorbs heat equivalent to mass times latent heat of evaporation in order to turn into vapor, it results in cooling. This results in a heat loss rate of 37.66 W in watts in Dog.
Evaporation:
Consequently, latent heat of water evaporation
= 2260 x 10³ J / kg or 2260 J / g
Now
1 g of water evaporates during the process,
heat lost = 2260 J
Moreover, heat loses every minute
= 2260 J
So,
Every second, heat is lost
= 2260 / 60
= 37.66 J /s
= 37.66 W
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Blood is a biohazard that requires special safety precautions
True or False
Answers
describe how human male gametes differ from female gametes
Answers
Explanation: Gametes are the cells used during sexual reproduction to produce a new individual organism or zygote. The male gamete, sperm, is a smaller, mobile cell that meets up with the much larger and less mobile female gamete, egg or ova. Both sperm and egg are only haploid cells. They only carry half of the chromosomes needed.
Answer:
a female is any individual that produces the larger type of gamete called ovum
the male produce a smaller tadpole like called a sperm
Jackson says, “The really scary things though are the physical, chemical, oceanographic things that are happening.” What does he mean by this?
Answers
Oceanography includes the oceans and sea depicting and analysis or change in the characteristics of water bodies.
By the statement, scary things are happening to the oceans by Jackson means that:
The oceans and aquatic lives are suffering from climatic changes and is undergoing immense physical and chemical changes.
The addition of unwanted wastes, dumps and chemical spills in oceanic bodies are altering the chemical and physical attributes of the water. The habitants of water like fauna and flora are suffering a lot of loss due to changes.
The involvement of human activities has increased water pollution and many other kinds of pollution. Overfishing, oil spills and dumping of waste in water bodies have altered the natural characteristics of water.
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16. Consider the overall chemical reaction for cellular respiration.
CHO,+ 604 GCO, + 6HO
Complete the table below to identify the phase of cellular respiration where each of the reactants
are used, the products are produced, and the location in the cell where that phase occurs. You
may need to refer back to previous activities on cellular respiration.
Reactants
Products
CHO
6CO,
6H0
38ATP
Phase(s) at
which it is
used or
produced
Location
STOF
POGIL" Activities for AP Biology
Answers
Answer:
Reactants of the cellular respiration process are:
1. C6H12O6
The phase reactant is used: Glycolysis
Location: cell cytoplasm
In cellular respiration, the glucose is used up in the phase known as glycolysis which is performed in the cell cytoplasm that breaks the glucose into 2 molecules of pyruvate.
2. 6O2
The phase reactant is used: oxidative phosphorylation
Location: mitochondrial matrix
Oxidative phosphorylation is the phase of cellular respiration that forms the ATP by the transfer of the electron to the oxygen which reduced the oxygen to water.
Products of cellular respiration are -
1. 6CO2
The phase reactant is used: Krebs cycle
Location: mitochondrial matrix
2. 6H2O
The phase reactant is used: oxidative phosphorylation
Location: mitochondrial matrix inner membrane
3. 38ATP
The phase reactant is used: oxidative phosphorylation, Glycolysis, Krebs cycle
Location: mitochondrial matrix, cell cytoplasm and inner membrane mitochondrial matrix
Aerobic respiration takes place in three steps: Glycolysis occurs in the cytoplasm. Krebs cycle occurs in the mitochondrial matrix. And oxydative phosphorilation that occurs in the internal mitochondrial membrane.
------------------------------
Through cellular respiration cells degrade organic compounds and produce energy.
Aerobic respiration takes place in three steps or stages: Glycolysis, Krebs cycle and oxydative phosphorilation.
Glycolysis ⇒ Occurs in the cytosol
Process through which the cell partially decomposes glucose and turns it into pyruvate. These enzymatic reactions do need no oxygen to occur. So this step is shared by aerobic and anaerobic respiration.Glycolysis transforms one glucose molecule (6-C) into two pyruvate molecules (3-C).The net product of glycolusis are two pyruvate molecules (3-C), two ATP, and two NADH.
The Krebs cycle ⇒ takes place in the mitochondria matrix.
Pyruvate, the main product of glycolisis, enters the mitochondria matrix and turns into Acetyl CoA. Once in the matrix, it enters the Krebs cycle.Each cycle consumes one Acetyl CoA molecule, releases two carbon dioxide molecules, and produces three NADH, one FADH₂, and one ATP molecule. Since two molecules of pyruvate are produced during glycolysis, the krebs cycle occurs twice per glucose molecule.
Oxidative phosphorilation
Electron transporter chain is placed in the internal mitochondrial membrane The process uses electrons from NADH and FADH₂ to produce ATP. Different redox reactions occur to pass electrons along the chain. At the end of the chain, electrons are sent to O₂ molecules, which also receive protons to create water molecules. Four electrons are needed to produce two water molecules from one O₂ molecule. The proton gradient is used to produce ATP molecules.According to this theoretical framework, we can complete the table.
Reactants
C₆H₁₂O₆ 6O₂
PHASE Glycolysis Oxydative Phosphorilation
LOCATION Cytosol Internal mitochondrial membrane
Products
6CO₂ 6H₂O 38ATP
PHASE krebs cycle oxidative glycolisis,
phosphorylation krebs cycle,
oxidative
phosphorylation
LOCATION mitochondrial mitochondrial cytoplasm
matrix membrane mitochondria
-----------------------
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The laetoli footprints provide valuable information about the ____ of early hominins.
Answers
Early hominins walked on two legs is the answer.
Laetoli's footprint provides a clear snapshot of early Hominini bipedalism with slightly but significantly different limb postures. These data support the hypothesis that significant evolutionary changes in Hominini bipedalism occurred 36 million years ago.
Laetoli is a prehistoric site in the Enduleni district of the Ngorongoro district in the Arusha region of Tanzania. The site dates from the Pliocene to the Pleistocene and is famous for its Hominini footprints preserved in volcanic ash. The location of Laetoli's footprints is 45 km south of the Olduvai Gorge.
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Which of the following is NOT a true statement about soil microorganisms?
A.Microorganisms can be used for medicinal purposes.
B.Microorganisms can use oxygen, sulfur, iron or nitrogen to respire.
C.Microorganisms can cause disease in plants, animals and humans.
D.Microorganisms cannot decompose organic matter.
Answers
Hello, the answer to your question is: B
Microorganisms can use oxygen, sulfur, iron or nitrogen to respire.