Pls help this is an assignment!!
What is the length of a human cheek cell under the 100x objective lens of a microscope (aka 1000x magnification)?
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Answer:
When we look at cells under the microscope, our usual measurements fail to work. In objectives we use (4 X, 10 X, 40 X and 100 X) arm.
At 100 x magnification you will see 2 mm. At 400 x magnification you will see 0.45 mm, or 450 microns. At 1000 x magnification you will see 0.180 mm, or 180 microns.
Explanation:
how does an increase in available food increase genetic diversity?
Answer:
more food means more of the species would stay alive longer so that would mean obviously more mating and mutations.
Explanation:
In
blood is composed largely of water, which helps to transport
nutrients and gases.
PLASMA
Plasma is the main component of blood and consists mostly of water, with proteins, ions, nutrients, and wastes mixed in.
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Answer:
Plasma
Explanation:
Plasma is usually given to trauma, burn and shock patients. It helps boost the patient's blood volume, which can prevent shock, and helps with blood clotting. It is also the single largest component of human blood, comprising about 55 percent, and contains water, salts, enzymes, antibodies and other proteins.
Describe the pathophysiology
Which correctly lists the three types of rock particles that make up soil? A. air, clay, and sand B. clay, water, and silt C. sand, clay, and silt D. silt, water, and air answer C.sand, clay, and silt
Answer:
option.c
Explanation:
It is correct
The three types of rock particles that make up soil are sand, clay, and silt. Thus, the correct option is C.
What are Rock particles?Rock particles may be defined as those particles that are formed by the weathering of sedimentary rocks and construct small tiny particles.
In the production of soil, water molecules and atmospheric air are not required significantly. The gathering of tiny rock particles constitutes the formation of soil.
Therefore, the correct option is C.
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pls help
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please answer correctly.
Answer:
A=Cornea
B=Retina(rods and cones)
C=Sclerotic
D=Iris
E=Optic nerve
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Which of the following is an example of aerobic respiration? A.Lactic acid fermentation in human muscles B.Physical exchange of gases in human lungs C.Respiration during vigorous physical exercise D.Breaking down of glucose with oxygen inside an animal cell
D. Breaking down of glucose with oxygen inside an animal cell is an example of aerobic respiration.
Lactic acid fermentation occurs in human muscles and it is not a type of aerobic respiration as it occurs in the absence of oxygen gas. In this process, lactate or lactic acid is produced by the glucose. Physical exchange of gases in human lungs is called breathing. Respiration during vigorous physical exercise is an example of anaerobic respiration because vigorous physical exercise creates deficiency of oxygen. Aerobic respiration is a type of cellular respiration in which the glucose is broken down to release energy in the form of ATP or adenosine triphosphate in the presence of oxygen. This type of respiration occurs in both animal and plant cells. Hence, breaking down of glucose with oxygen inside an animal cell is an example of aerobic respiration.Learn more about aerobic respiration:
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Formulating hypotheses – Propose a hypothesis to account for the data related to the cell life spans of the lining of the esophagus, small intestine, and large intestine. Please use the format,if then because
Answer:
Hypothesis: If mucus production in the submucosal layer of the esophagus is insufficient, cell longevity is affected, because it interferes with the quality of connective tissue.
Explanation:
In a scientific research the hypothesis is an assumption, a possibility that will justify the purpose of the scientific research and will help in the establishment of all the steps of this research, so that it is possible to determine if the hypothesis is true or false. In other words, we can say that the hypothesis must be formulated as an assumption, before the research that will prove it or not.
An example of a hypothesis about research on the longevity of cells that line the esophagus is: "If mucus production in the submucosal layer of the esophagus is insufficient, cell longevity is affected, because it interferes with the quality of connective tissue."
Rosa drew a flow chart of the carbon cycle.
GIVING 100 POINTS FOR ANSWER AND BRAINLEIST!
Which labels best complete the flow chart?
X: Producers undergo photosynthesis.
Y: Decomposers return carbon to the soil and release waste.
X: Decomposers return carbon to the soil and release waste.
Y: Producers undergo photosynthesis.
X: Decomposers take in carbon dioxide.
Y: Producers absorb carbon through their roots.
X: Producers absorb carbon through their roots.
Y: Decomposers take in carbon dioxide.
The following label complete the flow chart:
X- Producers undergo photosynthesis.
Y- Decomposers return carbon to the soil and release waste.
What is carbon cycle?Carbon cycles through Earth's atmosphere, oceans, land, and living things. Carbon is essential to numerous life-sustaining chemical processes. Carbon dioxide (CO2), which plants use for photosynthesis and regulates Earth's temperature, is in the atmosphere.
Several Earth processes transport carbon between reservoirs in the carbon cycle. Photosynthesis, respiration, and decomposition. Plants employ photosynthesis to convert CO2 into organic carbon molecules like sugars for growth. Plants and animals respire to release CO2 into the atmosphere. Decomposition by microorganisms releases CO2 from dead plants and animals.
The carbon cycle is a crucial aspect of Earth's climate system, regulated by CO2 levels, photosynthesis and respiration rates, and greenhouse gas levels. Understanding the carbon cycle helps us comprehend climate change and identify solutions.
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stion 6/48which would be the best evidence that a cell is using active transport to move a substance across its cell
membrane?
A) Substances are moving rapidly across the cell membrane.
B) ATP is being rapidly consumed near the cellular membrane.
C) Substances are moving from high to low concentrations.
D) Substances are moving through channels in the cell membrane.
active transport is Substances are moving through channels
Answer:
d,4
Explanation:
d,4
Which type of fault is under compression?
O A Transform
B. Reverse
c. Strike slip
O D. Normal
Answer:
B. Reverse
Explanation:
The reverse fault is the type of fault that is created by two faults under compression
Reverse fault is under compression. A reverse fault occurs when the hanging wall moves upward and over the footwall due to compression forces in the earth's crust.
Reverse fault is associated with whom?This type of fault is commonly associated with convergent plate boundaries, where two plates are moving towards each other and compressing the rock between them. The reverse fault is characterized by a steep dip angle and a short horizontal displacement.
A reverse fault is a type of dip-slip fault, where the movement of the rocks is vertical, and the hanging wall moves upward and over the footwall.
This type of fault is caused by compressional forces that push the rocks together and shorten the distance between them. As a result, the rock mass on one side of the fault plane is pushed upwards, and the rock mass on the other side is pushed downwards.
In summary, a reverse fault is a type of fault where the hanging wall moves upward and over the footwall due to compressional forces, and it is commonly found at convergent plate boundaries where the crust is undergoing compression.
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Because cells come from other cells,
larger organisms will have...
A. larger cells than smaller organism.
B. more cells than smaller organisms.
C. cells that reproduce more rapidly.
Answer:
B. more cells than smaller organisms
Explanation:
Animals and plants are multi-cellular eukaryotic creatures. Eukaryotes tend to be bigger than prokaryotes, but, more importantly, eukaryote means multiple cells, and prokaryote is one.
The organismal theory teaches that _____.
the basic unit of life is the organism
the basic unit of life is the cell
all cells have the same basic structure
cells are miniature reflections of the organisms from which they are taken
Answer:
the basic unit of life is the organism
Explanation:
The organismal theory teaches that the organism (even a multicellular organism) is the basic unit of life.
You go on a trip to the Galapagos island to study the animals there for a paper you are writing on evolution, just like Darwin did. You spend 3 days taking notes on all the physical characteristics you can observe about the tortoises and then you spend 3 days observing the finches. What have you recorded? A. Inherited characteristics B. Environmental variation factors C. Phenotypes D. Genotypes
Answer:
C. Phenotypes
Explanation:
Taking notes on all the physical characteristics observed about the tortoises and then observing the finches, I have observed the phenotypes.
Phenotypes are the observable characteristics of a species which are the result of genetic expression influenced by the environmental factors.
So, phenotypes will be recorded during the trip while taking notes on all the physical characteristics which can be directly related to genotype and environmental factors.
Hence, the correct option is "C. phenotypes".
There are no nucleus and mitochondria in the red blood cells (RBCs). For this reason, RBCs are able to carry more hemoglobin molecules and deliver oxygen to the right place. Look at the following statements about RBCs: 1. RBCs cannot produce any ATP due to the lack of mitochondria 2. RBCs produce 2 molecules of ATP from 1 molecule of glucose 3. RBCs produce CO2 and water from glucose 4. RBCs produce lactic acid from glucose 5. RBCs produce ethyl alcohol and CO2 from glucose Which of the statement(s) is/are true? A. 2 and 4 B. 1 C. 3 and 5 D. 4 and 5 E. 2, 4 and 5
What are the two main categories of mutations that occur in humans? Name and define the two types?
Answer:
Gene Mutation and Chromosomal Mutation
In an experiment, 4 liters of water was observed to evaporate in 20 hours. What rate of
evaporation was observed in this experiment?
O A. 0.001 liters per minute
O B. 0.2 liters per hour
O C. 0.02
Х
D. 5 hours per liter
It’s not D
Answer:
B. 0.2 litres per hours
Which part of the membrane can catalyze chemical reactions?
A Nucleic acids
B. Fatty acids
XC. Phospholipids
D. Enzymes
It isn’t C
Answer:
Enzymes
Explanation:
Catalysts" are agents that 'increase the rate of' , or 'speed up' , a 'chemical reaction' , when added to the reactants; and by definition, catalysts do so within affecting the reaction itself.
Enzymes can catalyze chemical reactions. Therefore, option (D) is correct.
What are the functions of enzymes?Catalysts are proteins that assist with accelerating digestion, or the compound responses in our bodies. Some substances are created and others are broken down.
Enzymes aid in the transmission of signals. Protein kinase, which is the enzyme that catalyzes the phosphorylation of proteins, is the most frequently used enzyme in the process. They break down big molecules into smaller ones that the body can easily take in.
Compounds catalyze a wide range of synthetic responses that are engaged with development, blood coagulation, recuperating, infections, breathing, processing, multiplication, and numerous other natural exercises.
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xam
Which of the following is
considered a producer?
A. algae
B. bacteria
C. deer
D. a cow
while the earth is home to many members of this phylum earthworms are not a member of blank
Answer: Chordata.
Explanation: While the earth is home to many members of this phylum, earthworms are not a member of Chordata.
How is a clade differentiated from another clade
Answer:
A clade is a grouping that includes a common ancestor and all the descendant species of that ancestor. Clades are differentiated visually based on where they branch off from one another.
Explanation:
A clade is a grouping that includes a common ancestor and all the descendants (living and extinct) of that ancestor. Using a phylogeny, it is easy to tell if a group of lineages forms a clade. Imagine clipping a single branch off the phylogeny — all of the organisms on that pruned branch make up a clade.
Clades are nested within one another — they form a nested hierarchy. A clade may include many thousands of species or just a few. Some examples of clades at different levels are marked on these phylogenies. Notice how clades are nested within larger clades
Answer:
A clade is a monophyletic grouping in which all the organisms stem from the same branching point.
Explanation:
The organisms in a clade must all stem from the same branching point in evolutionary history, as represented in the phylogenetic tree.
Question 9 Lipids and proteins can be formed from carbohydrates. Which elements do these molecules have in common that help form different molecules? carbon hydrogen sodium oxygen
Answer:
carbon if only one answer allowed, if check multiple, carbon, hydrogen, and oxygen.
Explanation:
The common elemental ingredients are carbon, hydrogen, and oxygen. They all contain the element carbon. They contain simpler units that are linked together making larger molecules.
Answer:
the main answer is carbon although its really carbon, hydrogen, and oxygen
to remember each macromolecule, you can use this reference...
Carbohydrates = CHO (carbon, hydrogen, oxygen)
Lipids = CHO (carbon, hydrogen, oxygen)
Proteins = CHON (carbon, hydrogen, oxygen, nitrogen)
Nucleic Acids = CHONP (carbon, hydrogen, oxygen, nitrogen, phosphorus)
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What kingdoms of life can have either sexual or asexual reproduction
Answer:
Protista, Fungi, and Plantae.
Explanation:
PROTISTA - asexually with binary fission , and sexually; two individuals join and exchange genetic material in the nucleus.
FUNGI - Reproduce sexually and asexually.
PLANTAE - Sexual reproduction involves the male pollen grains traveling to the stigma of a flower , and asexual reproduction involves the production of a new plant without the use of flowers.
Answer:
Plantae, protista, and fungi
Explanation:
took the test and got it right! Good luck and God bless you!
how does photosynthesis relate to the formation of dna?
Answer:
During photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds.
Explanation:
Which arrow or arrows represent reactions that demonstrate a conservation of mass and energy? Explain your answer.
Answer:
E I believe I don't know sorry if I am wrong
The idea that layers of sediment are always deposited horizontally is called_____.
answer here
Answer:
original horizontality
Explanation:
The Principle of Original Horizontality states that layers of sediment are at first deposited horizontally below the movement of gravity. It is a relative relationship technique. The precept is critical to the evaluation of folded and tilted strata.
Which was an idea used to dispute the theory of plate tectonics?
O
A. Seafloor spreading
O
B. Evidence of glaciers in Australia
O
C. Locations of Mesosaurus fossils
O
D. The existence of land bridges between continents
Answer:
option d is correct. the existence of land bridges between continents.
Explanation:
landland bridge theory which was used to explain why species would end up continents over, such as mammoth travelling to North America, thisthis theory was based on the idea that water eventually Rose to cover these bridges rather than the at having individual plates that moved away from each other.
The cytoskeleton in a cell is responsible for which?
Answer:
C the specific shapes of bacteria
Explanation:
It is responsible for sustaining a cell's shape, for the locomotion of a cell, and for the movement of the various organelles within the cell itself. Besides the intracellular movement of organelles, the cytoskeleton is responsible for chromosome movement during cell division and for cytokinesis.
Which of the following is a specific variant of a character? A.) A Class B.) A Trait C.) A Species
Answer:
B.) A Trait - pls mark brainiest
Explanation:
A phenotypic trait, simply trait, or character state is a distinct variant of a phenotypic characteristic of an organism; it may be either inherited or determined environmentally, but typically occurs as a combination of the two.
draw or define superior and inferior. give and example (anatomy)
Answer:
Superior (or cranial) describes a position above or higher than another part of the body proper. The orbits are superior. Inferior (or caudal) describes a position below or lower than another part of the body proper; near or toward the tail (in humans, the coccyx, or lowest part of the spinal column).
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Explanation:
Answer:
Superior (or cranial) describes a position above or higher than another part of the body proper. The orbits are superior to the oris. Inferior (or caudal) describes a position below or lower than another part of the body proper; near or toward the tail (in humans, the coccyx, or lowest part of the spinal column).