Understanding the Pericardium (Pericardial Sac) Your heart is surrounded by a double-layered membrane, called the pericardium or pericardial sac. This membrane keeps your heart in place in your chest cavity, restricts the expansion of your heart when your blood volume increases, and helps to protect your heart
Answer:
The pericardium acts as mechanical protection for the heart and big vessels, and a lubrication to reduce friction between the heart and the surrounding structures. A very important role in all aspects of pericardial functions is played by mesothelial cells.
The attraction of one water molecule for another is known as
A.adhesion
B.cohesion
C.none of these
D.polarity
In corn, seeds may be starchy (S) or sweet (s). Cross two heterozygous starchy corn plants. Using a Punnett’s square, give the phenotypic ratio then state the proportion of offspring that would be expected to be sweet?
if we cross Ss with Ss on the punnet square we will get the gametes S and s for both parents
on top left we have SS since we combine the alleles S and S
on top right we have Ss since we combine the alleles S and s
on bottom left we have Ss since we combine the alleles S and s
on bottom right we have ss since we combine the alleles s and s
The phenotypic ratio starchy:sweet is 3:1
1:3 of the offspring will be sweet
Which is a disadvantage for organisms undergoing asexual reproduction?
A. asexual reproduction results in less diversity among the offspring
B. asexual reproduction results in greater diversity among the offspring
Answer:
A - Asexual reproduction results in less diversity among offspring
Explanation:
Asexual reproduction results in less diversity among offspring because it produces exact copies of the parents. In sexual reproduction, two parents offer two sets of genes and allow diversity.
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PLS HELP FAST IM GETTING TIMED ILL MARK BRAINLIEST!
Answer:
I believe Mac should increase the tilt.
Explanation:
GIVING BRAINLIEST!!!
The circulatory system is responsible for what?
filtering toxins out of the body
transporting materials through the body
controlling our body parts
[tex]\huge\boxed{\text{Transporting Material through the body}}[/tex]
_____________________________________[tex]\huge\textbf{Body Systems}[/tex]The human body is made of different body systems which help it to perform different processes and manage them. Body systems is made of different Body organs. They are listed below
Digestive SystemIt is also called Gastrointestinal(GI) System. The GI system starts from mouth and ends at anus. All the organs between and including the mouth and anus comes under GI system.
The GI system intakes food and breaks it down into small and diffusable nutrients and excretes the solid waste products. One of the most important purposes of food is to serve as cellular fuel. Also, carbohydrates, proteins, and fats can all be used by our cells as sources of the energy that they need to stay alive.
Cardiovascular SystemCardiovascular system provides a transit way for the Products. It includes heart, Veins, Arteries, Capillaries.
It moves blood, hormones, nutrients etc. The main function of the cardiovascular system is therefore to maintain blood flow to all parts of the body, to allow it to survive. Veins deliver used blood from the body back to the heart.
Renal SystemIt cleans dissolved waste products from the blood and excretes them. It includes kidneys and bladder. All blood is passed through the kidneys, where special filters allow dangerous substances to pass out of the bloodstream while keeping helpful substances in. The waste liquid that’s filtered out by the kidneys is stored in the bladder until the body expels it.
Endocrine SystemThis system sends secret chemical signals that allow body systems to act cooperatively as require. These secret messages have their own unique purpose, to which the body’s other systems respond accordingly.
Respriatory SystemThis system is involved with gaseous exchange. It includes lungs, bloodvessels, heart, blood etc.
The respiratory system provide the cell with the oxygen which is taken in by lugns from the environment. In exchange the cell gives the blood "Carbon dioxide" which is given out when we expire.
Nervous SystemThe Neuron system is made of brain, neuron etc. It allows perception, emotion, thought, and rapid response to the environment. It includes the brain and nerves. The nervous system allows us to sensory stimuli such as light, sound, smell, and touch from our environment.
Immune SystemThis system fights infection and includes lymphatic vessels which permeate the body. Every living thing needs to be able to fight infection. We have white blood cells that can specially target and destroy invading pathogens. These white blood cells are made in our bone marrow and stored in our blood and our lymphatic systems.
Reproductive SystemThis system is related to the production of offspring. It includes ovaries, uterus, mammary glands (breasts), penis, and testes. The reproductive system is not essential to individual survival, but it is essential for the survival of the species.
Muscular and Skeleton SystemThis system contains all the muscles and bones we have. It include smooth, cardiac, skeletal muscles which are involuntary and voluntary in function also hard rigid bones and cartilage.
It provides body support, shape and protection.
_____________________________________Best Regards,'Borz'Answer:
sssss
Explanation:
WHere is my FOOKN BRAINLIEST
Why did the researchers NOT tell the patients which pill they were given?
Answer:
where is the rest of the question
Explanation:
Identify the true statements below.
The reaction of the burning candle occurs at a faster rate than an exploding firework.
The reaction of an exploding firework occurs at a faster rate than a burning candle.
The activation energy required for an exploding firework is less than the activation energy required for a burning candle.
The activation energy required for a burning candle is less than the activation energy required for an exploding firework.
Answer:
The activation energy required for an exploding firework is less than the activation energy required for a burning candle.
Explanation:
I did this in class. The height of the activation is lower for the firework than the burning candle.
what is cell inclusion?
Answer:
Cell inclusion are various diverse nutrients or pigments found within the cell but do not carryout activities like other cell organelles (cell organelles like mitochondria, nucleus, ribosomes e.t.c.) .
Examples of these nutrients are :
GlycogenLipidsExamples of Pigments are :
Melanin and so many moreAnswer:
Cell inclusions are considered various nutrients or pigments that can be found within the cell, but do not have activity like other organelles.
Hope this helps, have a wonderful day/night, stay safe, happy holidays, and merry Christmas!
The nucleus has a system of _____ embedded within its outer membrane which allows communication between the nucleus interior and the cytoplasm.
Answer:
pores
Explanation:
The nucleus consists of "nuclear pores" on its outer membrane. Each of these are surrounded by nuclear pore complex. It allows the pore to regulate the movement of molecules between the nucleus and the cytoplasm. It allows small particles to pass through such as ribosomal proteins. It prevents most large particles (except for histone) from passing through; thus, it is selective in nature. This function of the pores clearly shows that it allows communication to occur between the nucleus interior and the cytoplasm.
Which of the following eat producer organisms in a food chain?
A. quarternary consumer
B. tertiary consumer
C. primary consumer
D. secondary consumer
Answer:
a
Explanation:
quarternary consumer
What instrument can be used to demonstrate that Earth is rotating?
Answer:Foucault pendulum
Explanation:
Do red blood cells cause blood clots? And how/why?
Answer:
yes
Explanation:
RBCs are involved in platelet‐driven contraction of clots and thrombi that results in formation of a tightly packed array of polyhedral erythrocytes, or polyhedrocytes, which comprises a nearly impermeable barrier that is important for hemostasis and wound healing.
Answer:
Red blood Cells Cause clots because->
Explanation:
Cholesterol builds up in certain parts of the body and blood gets stuck on these piles of Cholesterol. Soon Cholesterol piles up and as more blood cells get stuck, the vein gets clogged.
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the cells were kept in a dilute solution. they were then transferred to distilled water. explain what will happen to each of these two cells when they are placed into distilled water.
When you place the animal cell in distilled water, because distilled water is a hypotonic solution(has a lower concentration than the cytoplasm). Water will diffuse inside the cell through osmosis. This will cause the cell to swell and eventually burst.
When you place the plant cell in the distilled water. The water will diffuse inside the cell, the water will build up inside the vacuole and turgor pressure will appear. The cell won't be able to burst because the cell wall prevents it.
Plants, algae, and cyanobacteria all release what
as waste that animals use
to breathe.
Plants, algae, and cyanobacteria all release oxygen as waste that animals use to breath.
What are cyanobacteria?Cyanobacteria are the type of bacteria which comes in the category of microorganisms and they are related to the bacteria they are not plants still they are performing the process of photosynthesis. The type of cyanobacteria is blue green algae.
Cyanophyta is the another name of cyanobacteria and they are from the phylum Gram-negative bacteria that used to obtain the energy that is utilized in the process of photosynthesis. The name of the cyanobacteria is depend upon its color and the common name of the cyanobacteria is blue-green algae.
Generally, there are five main types of cyanobacteria and these are named on the basis of their toxicity and they are named as Anabaena Flosaque, Microcystis aeruginosa, Aphanizomenon flosaquae, and the last one is Nodularia species.
Therefore, Plants, algae, and cyanobacteria all release oxygen as waste that animals use to breath.
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Many small freshwater organisms have a structure called a contractile vacuole, which pumps water out their body. Explain how this process is an example of active transport.
Answer:
1: The process of osmosis would cause water to move into the cells causing them to swell and possibly burst. Many freshwater one celled organisms have structures called contractile vacuoles. These structures collect and pump out excess water that accumulates in the cell.
2: During active transport, a protein pump uses energy, in the form of ATP, to move molecules from an area of low concentration to an area of high concentration. An example of active transport is the sodium-potassium pump, which moves sodium ions to the outside of the cell and potassium ions to the inside of the cell.
Explanation:
The circulatory system keeps the blood and tissues continuously oxygenated.It does this by having
Answer:
Following are the solution to this question:
Explanation:
The circulatory system is also known as the cardiovascular system or the vascular system, which allows blood to flow from cells in the body continually oxygenates the skin and tissue. It will take blood and oxygen from certain tissue to the tissue and veins, but deoxygenated blood to the lungs from the tissues.
Can you curl your tongue? Tongue-curling in humans (T) is a dominant genetic Derek can curl his tongue but his wife. Ashley, cannotAll nine of their children can curl their tongues. Complete the Punnett square based on the genotypes they most likely have.
Answer:
yes, i can. I can also make a 'w' with my tongue
Explanation:
Write the formula for the population growth rate. Identify all the variables.
Answer: v =59
Explanation:
To calculate the Population Growth (PG) we discover the difference (subtract) among the preliminary population and the populace at Time 1, then divide with the aid of using the preliminary populace and multiply with the aid of using 100.
What is A population variable?It is a descriptive variety or label related to every member of a populace. The values of a populace variable are the numerous numbers (or labels) that arise as we recollect all of the contributors of the populace.
Calculated with the aid of using (Birth Rate - Death Rate) / 10 = Growth Rate in % Natality Rate Number of births/ yr to each one thousand human beings withinside the populace Mortality Rate The ratio of deaths in a place to.
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Does the fossil of Archaeopteryx support Darwin's idea? Explain your answer.
(look at picture and read)
Answer:
yes
Explanation:
An analysis of fossil traits indicates that Archaeopteryx is not a bird at all. ... Archaeopteryx seemed to confirm Darwin's theories and has since become a key piece of evidence for the origin of birds, the transitional fossils debate, and confirmation of evolution.
True or false, when you eat (like when you eat lunch) the energy in your food that you are getting is stored as thermal energy in the food? True False
Steve Irwin, "The Crocodile Hunter," lived what he enjoyed doing best, getting up close and personal to some dangerous and non-dangerous animals. He was an Australian television personality, wildlife expert, and conservationist. He and his wife also ran a zoo in Australia. Irwin died after being stabbed in the chest by a stingray while filming an underwater documentary film entitled Ocean 's Deadliest.
WHAT IS THE IRONIC IN THE TEXT??
which supercontinents were present on earth at the beginning of the crustaceous period?
a. Rodinia
b. Pangaea
c. Laurussia and Gondwana
d. Laurasia and Gondwana
Answer:
The supercontinent that was present at the beginning of the Cretaceous was Laurasia and Gondwana (option d).
Explanation:
The Cretaceous period was preceded by the Jurassic and followed by the Paleocene, being a division of the Mesozoic era.
Laurasia and Gondwana were the result of the division of the supercontinent Pangea at the beginning of the Cretaceous period. Laurasia was predominantly located to the north, while Gondwana was to the south, which gave way to the continents known today.
The other options are not correct because:
a. Rodinia existed in the Proterozoic.
b. From Pangea Laurasia and Gondwana were formed.
c. Laurussia is another name for Laurasia
Please helpppppp will give brainliest
Answer:
Embryotic stem cell research benefits our society with the possibility of it helping various diseases and it only requires a small number of cells. The negatives of stem cell research are the cost and ethical controversary. To start, stem cell research could help with diseases like Alzheimer's and certain cancers like Parkinson's. Also since cells replicate incredibly fast, procedures wouldn't need many cells depending on the case. Stem cell research can vary in costs from about $5000 to $20,000 which for many people is difficult because stem cells are very temporary in many cases. Many groups of people don't agree with stem cell research since human embryos are destroyed in the process of harvesting embryonic cells and it is "potential life".
Thats all i could do i hope this helps
suggest the function of the flagellum in bacteria
Answer:
[tex] \huge \pink{flagellum \: in \: bacteria}[/tex]
Primary function of Flagellum is
Organelle of locomotion in the cells of many living organisms.It is a protozoan group.It has hairlike structure.Answer:
Flagellum is primarily a motility organelle that enables movement and chemotaxis. Bacteria can have one flagellum or several, and they can be either polar (one or several flagella at one spot) or peritrichous (several flagella all over the bacterium).
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Write the names of any two hormones secreted by the adrenal glands with one function of each
Cortisol is secreted by the cortical region of the adrenal gland and it increases the blood sugar levels.
Adrenaline is secreted by the medular region of the adrenal gland and it increases the heart rate.
Ad means upon and renal means kidney, thus adrenal gland is present at the top of the kidney. There are two regions in the adrenal gland,
Adrenal Cortex: Outer regionAdrenal Medulla: Inner regionx------------------------------------------------------------x
[tex]\Large\textbf{Adrenal Cortex}[/tex]
Adrenal Cortex is active all the time but especially in shock or stress condition. It secretes aldosterone, cortisol and androgenic hormones.
ALDOSTERONE: It promotes the retention of sodium ions and release of potassium ions by kidney. It also promotes inflammation as part of the body immune defense reaction.CORTISOL: It brings about an increase in blood glucose level mainly its production from protein and by antagonizing the action insulin.ANDROGEN: They play an important role in sexual development. As they secrete androgen and testosterone so they promote the secondary sex characters such as beards in men and sexual characters in woman._____________________________________[tex]\Large\textbf{Adrenal Medula}[/tex]The adrenal emdulla produces the hormones such as adrenaline and nor-adrenaline. Both of these hormones are secreted in stress condition. THey produce many specific changes in the body.
They produce the fight and flight mechanism inside our body. It dilates the blood vessels, promotes the release of glucose from the liver glycogen, reinforces the effects of sympethatic system, dilates the pupil of an eye.
_____________________________________QUESTION:
The question asks for the two hormones from the adrenal gland, it does not say specifically from which part of the adrenal gland, thus you could mention any hormone from any region of the adrenal gland mentioned above.
_____________________________________Best Regards,'Borz'Differential heating of the Earth's atmosphere is driven by energy from the
A.the earth's inner core
B.the sun
C.convection currents in the mantle
Answer:
B. the sun
Explanation:
the sun's ray are hot the closer they get to earth, it gets less warmer
Answer:
B
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In the desert food web above which of the following species would have the largest negative
impact if it was removed?
A. golden eagle
B. black-tailed prairie dog
C. sand sagebrush
D. kit fox
Answer:black tailed prairie dog
Explanation:
Because that is the center of attention everyone in the food corcle wants it
List 3 similarities between the 3 types of macromolecules
Answer:
3 Similarities are Carbon, Hydrogen, and oxygen
Explanation:
How does the cooling rate of magma affect the
texture of igneous rock?
Answer:
The factor that affects the size of the crystals and the texture of the rock is the cooling rate of the molten rock or magma. If the magma cools rapidly, the crystal formed is very small. ... On the other hand, if the magma cools slowly, the crystal formed is large. This rock has a coarse-grained texture.
Explanation:
The texture of an igneous rock is completely dependent on the rate of cooling of the melt. Slow cooling allows large crystals to form whereas fast cooling gives small crystals.
How is cooling rate of magma related to texture of igneous rock?If the magma cools quickly then the reactions are much more faster and smaller mineral crystals. Igneous rocks have a distinctive appearance based on the rate of cooling.
Cooling rate of the molten rock or magma is the factor that mainly affects the size of the crystals and texture of the rock. Crystal formed is very small, when the magma cools rapidly whereas, the crystal formed is large, if the magma cools slowly.
Rocks formed from the crystallization of a liquid are called Igneous rocks. Igneous rocks are divided into:
Intrusive rocks that crystallize from magma in the earth's crust. Extrusive rocks that crystallize from lava in the earth's crust.To know more about igneous rock, refer
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Make a list of three
other scientific words that have
-tion as a suffix.
Answer:
Condensation
Evaporation
Dissection
Reproduction
Explanation:
I gave an extra so you had a couple of options!
There are many more words with the suffix "tion," such as evolution, reproduction, and regeneration, and here the evolution is possible through sexual reproduction, and the regeneration is a process in which new cells are grown.
What is the significance of reproduction in living things?In the living forms, both types of reproduction are seen, such as sexual reproduction and asexual reproduction, and in the case of sexual reproduction, there is variation among the offspring due to the crossing over and the recombination, whereas this is not seen in the case of asexual reproduction. Asexual reproduction is seen in plants and others, while the parents and offspring are similar.
Hence, there are many more words with the suffix "tion," such as evolution, reproduction, and regeneration, and here the evolution is possible through sexual reproduction, and the regeneration is a process in which new cells are grown.
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