Answer:
blood cell production
Explanation:
ur welcome!
b
Explanation:
it is part of the vein system
1) why should we always breathe through the nose and not through the mouth ?
Answer:
Below
Explanation:
The nose is lined with hairs which act as a filter for particles like dust, pollen and other allergens so they don't enter your lungs.
Your nose also preheats the air you breath in.
How can antibiotic resistance be minimized?
Explanation:
There are many ways that drug-resistant infections can be prevented: immunization, safe food preparation, handwashing, and using antibiotics as directed and only when necessary. In addition, preventing infections also prevents the spread of resistant bacteria.
Select the correct answer.
With support for cases such as Brown v. Board of Education, the National Association for the Advancement of Colored People (NA
its attention during the early days of the civil rights movement on doing which of the following?
Answer:
Although the Declaration of Independence stated that "All men are created equal," due to the institution of slavery, this statement was not to be grounded in law in the United States until after the Civil War (and, arguably, not completely fulfilled for many years thereafter). In 1865, the Thirteenth Amendment was ratified and finally put an end to slavery. Moreover, the Fourteenth Amendment (1868) strengthened the legal rights of newly freed slaves by stating, among other things, that no state shall deprive anyone of either "due process of law" or of the "equal protection of the law." Finally, the Fifteenth Amendment (1870) further strengthened the legal rights of newly freed slaves by prohibiting states from denying anyone the right to vote due to race.
Despite these Amendments, African Americans were often treated differently than whites in many parts of the country, especially in the South. In fact, many state legislatures enacted laws that led to the legally mandated segregation of the races. In other words, the laws of many states decreed that blacks and whites could not use the same public facilities, ride the same buses, attend the same schools, etc. These laws came to be known as Jim Crow laws. Although many people felt that these laws were unjust, it was not until the 1890s that they were directly challenged in court. In 1892, an African-American man named Homer Plessy refused to give up his seat to a white man on a train in New Orleans, as he was required to do by Louisiana state law. For this action he was arrested. Plessy, contending that the Louisiana law separating blacks from whites on trains violated the "equal protection clause" of the Fourteenth Amendment to the U.S. Constitution, decided to fight his arrest in court. By 1896, his case had made it all the way to the United States Supreme Court. By a vote of 8-1, the Supreme Court ruled against Plessy. In the case of Plessy v. Ferguson, Justice Henry Billings Brown, writing the majority opinion, stated that:
Explanation:
please help just one question.
Answer: I think the answer is True
Which of the following is NOT a correct description of cnidarian nervous tissues?
Answer:
Three tissue layers I think
Of these things is an environment which one is a living thing?
Air (wind)
Soil (clay)
Fungus (mushroom)
Water (river)
Answer:
What is Fungus (mushroom)
Explanation:
The living body of the fungus is a mycelium made out of a web of tiny filaments called hyphae. The mycelium is usually hidden in the soil, in wood, or another food source. A mycelium may fill a single ant, or cover many acres.
Air,water and soil may well be a place living things exist in, ecosystem, but they are in no way living.
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Fungus (mushroom) is the living thing in environment. Thus option C is correct.
What are the types of environment ?The surrounding of living organism including both the biotic and abiotic factors called as environment. It may be natural, social, or built environment.
Majority of the environment is composed up atmosphere, hydrosphere, lithosphere, and biosphere.
It can be up microenvironments which is the immediate local surroundings of an organism and secondly macro environments refers to biotic and abiotic factors.
Two common types of environment such as natural or geographical environment, and man-made environment.
Geographical environment include terrestrial environment independent of humankind. For example rivers, deserts, water, oceans.
Man-made environment refers to a social environment. It is completely dependent on human social influence.
For example, city infrastructures, houses, transport and communication etc.
Thus option C is correct.
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The figure shows two water molecules held together by a/an
bond. (arrow tip)
A. covalent
B.hydrogen
C.ionic
D.van der Waals
Answer:
b) Hydrogen
Explanation:
The figure shows the hydrogen bonding of two H2O molecules. The red atom is Oxygen which is δ−, and the white atom is Hydrogen which is δ+, this is determined by their electronegativity. H2O molecules can form hydrogen bonding when the Hydrogen atom bonds through hydrogen bonding to the oxygen atom and vice versa.
This type of bond is an intermolecular bond
Chloroplasts and mitochondria are both involved in energy conversion in cells and share many similarities. Differentiate between chloroplasts and mitochondria. Choose ALL of the characteristics that apply ONLY to chloroplasts.
A) contain DNA B) found in plants C) contain pigments D) used in photosynthesis E) used in aerobic respiration
Explanation:
contain pigments c and used in photosynthesis
The main difference between chloroplasts and mitochondria are contained pigments, used in photosynthesis. The correct options are C and D.
What are chloroplast and mitochondria?The organelle found inside the cells of plants is known as a chloroplast. Additionally, there are particular algae that serve as the photosynthesis sites, where the sun's energy should be converted into chemical energy for the sake of growth. In addition to being employed in photosynthesis, it also contains pigments.
Membrane-bound cell organelles known as mitochondria (mitochondrion, singular) produce the majority of the chemical energy required to fuel cellular metabolic operations.
Therefore, the correct options are C) containing pigments and D) used in photosynthesis.
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Match the organism with the biome where you would expect to see it.
Answer:
What are the 26 states of matter?
Bose–Einstein condensate.
Fermionic condensate.
Degenerate matter.
Quantum Hall.
Rydberg matter.
Rydberg polaron.
Strange matter.
Superfluid
Question 8
1 pts
s
When a person jumps off the diving board and they spread their whole body out in the
air, they will hit the water with a loud smack. This is called a "belly flop". This is due to a
unique property of water called
O capillary action
O surface tension
Odensity
O temperature
< Previous
Next >
Answer:
Surface Tension
Explanation:
Hello,
Can someone re-word this well for 50 points?
"The lab allowed me to model and observe stream and river processes. Using a virtual model, I compared low and high velocity streams or rivers, low and high gradient streams or rivers, and low and high volume streams or rivers. I found that higher velocity streams or rivers can cause more erosion, as do higher gradient and higher volume streams or rivers. Not only did these factors move more small sediment, they also moved larger pieces of sediment."
Answer:
Explanation:
This lab here allowed me to model and notice the stream and river processes. I found that higher celerity streams or rivers can cause more abrasion, as do higher gradient and higher volume streams or rivers. Not only did these factors move more small sediment, they also moved bigger pieces of the sediment rock.
whut is a biofultproduc
why organisms need specialised cells and tissues in order to survive
Multicellular organisms require cells to perform various functions and collaborate to maintain a balance in the system known as homeostasis. As a result, specialized structures become specialized for specific functions.
What is cell specialization?Cell specialization, also recognized as cell differentiation, is the methodology by which formulaic cells transform into specific cells that perform specific functions within the body.
Cell specialization is especially important during embryonic development.
Cell specialization allows multicellular organisms to express fewer genes in individual cells, protecting genes from mutagen damage.
Cell specialization occurs primarily during embryonic development as a result of cell signaling of cytoplasmic determinants.
Adult stem cells become specialized to various types of stem cells primarily due to gene expression regulation.
Cells in multicellular organisms must perform a variety of functions and collaborate to maintain a balance in the system known as homeostasis. As a result, specialized structures evolve to perform specific functions.
Thus, the organisms need specialized cells and tissues in order to survive.
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10. Since I contain many enzymes,
I can digest an injured cell;
And can break down a large molecule
Into a smaller one as well.
What am I
Answer:
Lysosomes
Your Welcome!
How does doing work on an object change its energy?
Answer:
WHEN WORK ISS DONE ON A OBJECT, ENERGY IS ADDED TORDS IT.
Explanation:
.
.
.
Which type of data is non-numerical?
A. statistical data
B. quantitative data
C. qualitative data
Answer:
qualitative data. ....
is a plant a cell, a tissue or an organ
2. What is the name of the site on a chloroplast where half of the reactions in photosynthesis occur?
thylakoid membrane
cell wall
stroma
grana
Answer:
thylakoid
Explanation:
Hope this helps
Why are amino acids called amino acids?
Answer:
The name “amino acid” is derived from the amino group and carboxyl-acid-group in their basic structure. There are 21 amino acids present in proteins, each with a specific R group or side chainAll organisms have different essential amino acids based on their physiology.
Answer:
Because they are made of an amino group (NH3) and carboxylic acid group ( COOH)
= amino acid
Explanation:
A solution is a chemical reaction?
Answer:
False
Explanation:
A solution does not have to be a chemical reaction. Salt and water is a perfect example. Even though salt will dissolve in water, there is no chemical reaction going on. Salt remains salt and water remains water. The salt can easily be recovered by evaporating off the water.
Some solutions can be a chemical reactions but not all have to be.
what features do root hair cells, epithelial cells, and red blood cells have in common
All of these types of cells have a high surface area-to-volume ratio.
What is the function of RBCs?
Erythrocytes also referred to as red blood cells carry oxygen to your body's tissues. As oxygen is converted to energy, carbon dioxide is released by your tissues. Additionally, your red blood cells carry carbon dioxide to your lungs so you may exhale it.
The process of getting oxygen from your lungs to your body's tissues is carried out by red blood cells. Your tissues use oxygen to make energy and carbon dioxide to expel waste. The carbon dioxide waste is transported to your lungs by your red blood cells, where it is exhaled.
It takes roughly seven days for red blood cells to properly mature and are then released into the bloodstream from the soft bone tissue (bone marrow) of your body. A protein that enables red blood cells to transport oxygen from your lungs and transfer it to other tissues in your body gives them their vivid red color is called hemoglobin.
Therefore, all of these cells have a high surface area-to-volume ratio.
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what occurs if resources within a population are limited
Answer:
Explanation:
As resources are depleted, population growth rate slows and eventually stops,This is known as logistic growth.
Describe the function of chloroplasts.
Chloroplasts use light energy to make sugar from carbon dioxide and water.
O Chloroplasts break down sugar to make energy in the form of adenosine triphosphate, or ATP.
Chloroplasts use light energy to make sugar, carbon dioxide, and water.
Chloroplasts break down sugar to make energy in the form of carbon dioxide and water.
Answer:
chloroplasts use light energy to make sugars, water, and carbon dioxide.
Explanation:
Which two body systems work closely together to make sure your body remains in a stable condition
The Circulatory system helps in providing impure blood to heart and taking pure blood to cells with hemoglobin.
The respiratory system handles the coming of oxygen to body and out of carbon dioxide from body
1. A rock sample has a mass of 16 grams:
and a volume of 8 cubic centimeters.
When the rock is cut in half, what is
the volume and density of each piece?
(1) 8 cm3 and 0.5 g/cm3
(2) 8 cm² and 1.0 g/cm3
(3) 4 cm' and 2.0 g/cm3
(4) 4 cm3 and 4.0 g/cm3
1
Answer:
(3) 4 cm' and 2.0 g/cm3
Explanation:
Given:
volume= V= 8 cm³
mass= m= 16 g
The density is the mass per volume of a substance, so the density of the rock is:
density= d= 16 g/8 cm³= 2 g/cm³
When we cut the rock in half, we have a half volume and a half mass:
V= 8 cm³/2= 4 cm³
m= 16 g/2= 8 g
But the density is not altered because it is an intrisic property - it does not change with the amount of subtance. Thus, the density of a half rock is:
d = m/V= 8 g/4 cm³= 2 g/cm³
HELP WILL GIVE BRANLIEST
Answer:
I think it's the last one, photosynthesis takes place in all plant cells, and respiration takes place only in leaf cells, but im not 100% sure
Explanation:
Answer: last one
Explanation:
Which of the following allows water to move much faster across cell membranes? A) the sodium-potassium pump B) ATP C) peripheral proteins D) aquaporins
Answer:
D
Explanation:
I believe the answer would be aquaporins
Aquaporins efficiently speed up the total rate of water diffusion across the cell membrane due to the slow diffusion of water through the lipid bilayer, hence option D is correct.
What are aquaporins?Aquaporins (AQP) are essential membrane proteins that act as conduits for the passage of water and, occasionally, tiny solutes.
The Na+ K+ pump is an electrogenic transmembrane ATPase that was initially identified in 1957. It is located on the cytosolic side of the cell's outer plasma membrane. For every ATP, the Na+ K+ ATPase pumps 3 Na+ out of the cell and 2K+ into the cell.
Therefore, animals, plants, and microorganisms all have them preserved. Every aquaporin molecule has a pore in the middle, according to structural investigations of the molecules.
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Which might be aAfter reading the passage about acupuncture, identify which statement supports the
claim that acupuncture relieves pain.
Answer:
The National Institutes of Health found it effective in reducing pain and other symptoms, but it is not clear how it works.Explanation:
Which term names a property or mineral
Answer: Streak
Explanation: For k12 Science Unit 2 test
The four main types of pest
Answer:
1) Insect
2) Mites
3) Rodents
4) Animals
5) Birds
Explanation:
1) These are significant and significant pests. Insects have three pairs of legs, two pairs of wings, a segmented body, and complex eyes and antennae that are unique to them. Insects are smart, extracting sap from plants, biting plant parts, burrowing into fruits, twigs, and leaves, attacking roots, barks, and blooms, among other things. Larvae, adults, and nymphs are the stages of insect pests that cause harm.
2) These are insect-like organisms with a soft body and four pairs of legs. The colour of these small organisms is red or pastel yellow. They feed on the plant's sap and attack the crops in large numbers.
3) This bug consumes a considerable amount of human food and causes widespread crop damage. They're also to blame for massive grain losses on fields, in warehouses, and in homes.
4) Wild boars, deer, elephants, buffalo, jackals, monkeys, and squirrels are among the animals that inflict direct harm to agricultural plants. They devour the plants and, as a result, squander a tremendous amount of food.
5) Birds devour grains and destroy crop plants. Crows, parrots, and sparrows are among the most common birds that prey on crops.
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