Answer: Please refer to:
The small intestine has millions of tiny finger-like projections called villi. These villi increase the surface area for more efficient food absorption. Within these villi, many blood vessels are present that absorb the digested food and carry it to the bloodstream.
Explanation:
Not sure but hope it helps.
help me to answer my questions
What are some of the byproducts of photosynthesis? (Chose all that apply)
1. Oxygen
2. Water
3. Glucose
4. Carbon Dioxide
Answer:
oxygen and glucose
Explanation:
name five substances found in caspular space
Answer:
Bowman's capsule encloses a cluster of microscopic blood vessels—capillaries—called the glomerulus, where wastes are filtered from the blood.
Explanation:
Which of these correctly demonstrates the biomolecule with its function?
A)
steroids; separate the cytoplasm from the environment
B)
waxes, prevents water loss and repels water
c)
triglycerides; make up sex hormones
D)
phospholipids, store energy
Answer:
B) Waxes, prevents water loss and repels water
Explanation:
Waxes, steroids, phospholipids, and triglycerides are types of lipids. All of them are made of Hydrocarbon chains that are hydrophobic.
Triglycerides (fats) - Storage molecules for the body's energy
Steroids - Sex hormones and cholesterol
Phospholipids - Cell membrane (Separates cytoplasm from the environment)
Therefore, Answer choice B) Waxes, prevents water loss, and repels water, is the only answer that correctly matches with the provided answers.
Need the answers due in a hour
Answer:
1) Description of coal:
2)Benefits of using coal for electricity
3)Negative consequences of using coal:
Explanation:
1)Coal is a black rock formed by decomposing organic material over millions of years.
2)Coal contains more energy and it is also cheaper than other fossil fuels.
3)Using coal releases more carbon dioxide than other fossil fuels and fosil fuel alternatives, causing damage to land, water and air.
3a. Which paragraph is best illustrated by
the image?
Acetylcholine is an important chemical signal in the nervous system. Once aceylcholine is released, it is quickly broken down into other chemicals because of the activity of cholinesterase. Cholinesterase is which of the following? *
a lipid
an organelle
an enzyme
a hormone
what 3 similarities of carbohydrates and lipids
Answer:
Similarities: They're all largely or primarily carbon compounds, and they're all produced by living things. Proteins and some carbohydrates have what's sometimes called "high information content" in that the imputed instructions for producing them are very particular.
Explanation:
Which of the following correctly explains the steps pictured below? a
Prophase II, Metaphase II, Anaphase II
b
Prophase II, Anaphase II, Telophase II
c
Prophase I, Prophase II, Metaphase I
d
Prophase I, Metaphase I, Anaphase I
Answer:
The answer is A.
Explanation:
It cant be C because prophase 1 doesnt come right before prophase 2.
It cant be B Because telophase is not shown.
It cant be D because there are two cells going through the process so it has to be meisosis.
Assume that a student is given two models of bacteria, with one model consisting of big bacteria and the other consisting of small bacteria. How can the student demonstrate the theory of endosymbiosis using the models?
Answer:
37
Explanation: it is right
how do we know where the oceans separate?
Answer:
Simplesmente pelo contorno dos continentes e por linhas imaginárias que cortam a porção líquida do planeta.
Explanation:
confia
The largest number in ecosystems
No more than five trophic levels are present in an ecosystem, most have only 4.
layers of
make up the cell membrane.
The cell membrane is composed of two main layers called phospholipid bilayer. Each layer is made up of phospholipids, which are a type of lipid molecule.
These phospholipids have a hydrophilic (water-loving) head and a hydrophobic (water-fearing) tail. The hydrophilic heads are attracted to water, while the hydrophobic tails repel water.
The phospholipid bilayer consists of two layers of phospholipids arranged in such a way that the hydrophilic heads face the outside and inside of the cell, while the hydrophobic tails are sandwiched in between. This arrangement creates a barrier that separates the inside of the cell from the outside environment.
In addition to phospholipids, the cell membrane also contains other molecules such as proteins, cholesterol, and carbohydrates. Proteins are embedded within the phospholipid bilayer and serve various functions, such as transporting molecules across the membrane or acting as receptors for signaling molecules.
Cholesterol molecules are interspersed between the phospholipids and help maintain the fluidity and stability of the cell membrane. Carbohydrates are attached to proteins or lipids on the outer surface of the cell membrane and play a role in cell recognition and communication.
Overall, the cell membrane is made up of phospholipids, proteins, cholesterol, and carbohydrates, all working together to regulate the passage of molecules in and out of the cell and to maintain the integrity and functionality of the cell.
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Which is not accurate concerning plate tectonics?
a.Some continents are drifting apart
b.There are seismic activity at the margins of the crustal plates
c.The continents ride on crustal plates
d.The continents are fixed in position
Answer:
There are seismic activity at the margins of the crustal plates , I think
Figure 1.20 shows part of a fungus. The photograph
was taken with an electron microscope.
Name the structure labelled A.
Answer:
the name of the structure is mycelium
Explanation:
it's made up of hyhae, the fruiting bodies and the shores
how are enzymes, proteins, and amino acids related, and what is their role in a viral take over?
Answer:
Amino acids are building blocks to proteins, and the combination and order of them determines what protein is actually being built. Then enzymes are a type of protein which facilitates or catalyses a process, such as the breaking down of molecules in your food. In a viral takeover, the virus uses your body's ribosomes to create viral proteins (consisting of amino acids). Viral enzymes actualy facilitate this by inserting viral DNA into the hostcell's DNA.
Explanation:
Design an Experiment
Question: What is the effect of day length on plant
growth?
Hypothesis: Plants will grow more when the day is
longer.
Answer:
Independent Variable: Time each plant is exposed to daylight.
Dependent Variable: Hours of exposure
Constant Variables: Species of plant, location of each plant, amount of soil, amount of water, and tempurature.
Explanation:
Independent variable: the variable that stays the same.
Dependent: the measurement that is used to measure the independent variable.
Constant: the variables that stay the same in a experiment.
b. What might be the purpose of this structure (flagellum)?
Answer:
Flagellum, plural flagella, hair like structure that acts primarily as an organelle of locomotion in the cells of many living organisms. Flagella, characteristic of the protozoan group Mastigophora, also occur on the gametes of algae, fungi, mosses, slime molds, and animals.
Explanation:
Answer:
Flagellum, plural flagella, hairlike structure that acts primarily as an organelle of locomotion in the cells of many living organisms. Flagella, characteristic of the protozoan group Mastigophora, also occur on the gametes of algae, fungi, mosses, slime molds, and animals.
During mammalian labor and delivery, the contraction of uterine muscles is enhanced by oxytocin. This is an example of
Answer:
positive feedback mechanism
Explanation:
What evidence contradicts the theory that moving two-ton stones was physically impossible for the Egyptians, and must have been done using alien technology?
Answer:
Archaeological evidence shows that Egyptians worked together to build the pyramids. Remains of quarries and ancient tools suggest that large slabs were created from rock beds. The slabs were placed on sleds and pulled to the building site. To make this process easier, men most likely poured oil on the roadway. This process is depicted in tomb paintings that date back to 1900 BCE.
Explanation:
Why are biosphere reserves the best way of wildlife conservation
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7. What is the goal of materials engineering?
Answer:
The goal of materials engineering is to predict and control material properties through an understanding of atomic, molecular, crystalline, and microscopic structures of engineering materials
2. Our kidneys could not function without____
3. Water____
when it freezes.
4. Water resists changing its____
5. Many animals rely on____
of water to cool them.
Explanation:
water
solidify
state
temperature
15. The human body has
why does the central part of a red blood cell appear paler than the outer part when viewed under a light microscope
Answer: The central pale area of each red blood cell is due to the concavity of the disc.
Explanation:
The absence of a nucleus and light effect makes the central part of a red blood cell appear paler
The red blood cells ( RBC )does not have a nuclei like every other cells contained in the body. therefore when viewed under a light microscope the outside of the red blood cell will appear brighter ( pink ) while the center of the red blood cell will appear pale ( whitish ). also the the light intensity from the light microscope contributes to the pale nature of the central part of the red blood cell.
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Considering zoo populations of lions, how can parentage information be helpful?
Answer:
By Budhan Pukazhenthi, SCBI Scientist
The International Union for Conservation of Nature’s Red List of threatened species, often considered the world authority on wildlife populations, lists African lions as vulnerable. “Vulnerable” is a classification that is not as extreme as “endangered,” “critically endangered” or “extinct,” but denotes that wild lion populations throughout the world are on the decline. As a result, it is important that healthy lion populations be managed in zoos as hedge against extinction.
Explanation:
The importance of getting to know the parentage information is to avoid inbreeding events as much as possible and increase genetic diversity -heterozygosity-.
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There are many challenges associated with captivity, and one of them is related to maintaining genetic diversity in the population, following the ex-situ conservation goal.
When selecting the animals to be kept in captivity, it is significant to consider a few aspects concerning genetic diversity maintenance. The main goal is to prioritize the original genetic material. Introducing a few animals of a species into the zoo might be considered an example of the founder effect. Just a pregnant female is enough for it to occur. And the most significant problem associated with this event is the loss the genetic diversity or variability. When breeding animals in captivity, there is a high risk of losing some genes and fixating others due to inbreeding.
An increase in inbreeding events means a significant reduction in genetic diversity, leading to a reduction in the fitness of individuals.
Inbreeding can be defined as mating events between related individuals. These events lead to an increase in the frequency of h0m0zyg0us individuals and a decrease in heter0zyg0us individuals. It means the loss of genetic variability. So, inbreeding is going on whenever the zygotes are formed by gametes proceeding from biologically related individuals.
In general, inbreeding occurs in small isolated populations and is closely related to the loss of aptitude. A reduction in population fitness might eventually end in its extinction.
In zoos, the importance of getting to know the parentage information is to avoid these inbreeding events as much as possible and try to enhance diversity -heterozygosity-. Knowing genetic information about parental animals is an important tool to manage crosses, avoiding genetic problems, and increasing genetic diversity.
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What elements make up carbohydrates?
A) Carbon, hydrogen, oxygen
B) Glucose and fructose
C) Carbon, hydrogen, nitrogen, oxygen
D) Sulfur, carbon, hydrogen
Carbon , Hydrogen and oxygen
Carbohydrates are a class of chemical compounds composed of carbon, hydrogen, and oxygen in 1:2:1 ratio, respectively.Which of the following describes an example of molecular movement across a membrane through active transport?
Answer: Hydrocarbons enter the cell by dissolving in the lipid bilayer of the membrane.
Explanation:
Answer:
Channel proteins bind with extracellular solutes and release them inside the cell.
Explanation:
seems right
Explain why the a single loop circulatory system is able to supply raw materials to cells as fast as the double – loop circulatory system.
Answer:
In the case of single circulatory systems, e.g. as in fish, the heart receives deoxygenated blood (also described as 'oxygen-poor blood') into the atrium of the heart and pumps it through the ventricle of the heart so that it continues onwards to the gills.
apakah yang berlaku pada isi padu air semasa pemanasan?
