Answer:
D.
She wishes to keep hot air from upstairs from flowing down the stairwell by convection
Decomposers play an important role in the carbon cycle.
True
False
Answer:
true
decomposers break down organisms and return the carbon in their bodies to the atmosphere.
the vacuoles in plant cells are different from the vacuoles in animal cells because
Answer:
Explanation:
The vacuole in a plant cell is differerent from vacuoles in an animal cell because an animal cell has multiple small vacuoles while a plant cell has one large central vacuole that mainly just stores water and nutrients.
the eukaryotic cell organelle that most resembles a bacterial cell is the
Answer:
mitochondria
Explanation:
Both bacteria and mitochondria have their own cell
Why do lysosomes keep their digestive
enzymes in membranous sacs?
A. because the membranous sacs can sense when the cell is about
to be attacked
B. because the membranous sacs keep the digestive enzymes
from destroying the cell
C. because the membranous sacs act as tails that help the
lysosomes move faster
D. because the membranous sacs act as factories helping the
digestive enzymes make proteins
The correct answer is option B. because the membranous sacs keep the digestive enzymes from destroying the cell.
What is the purpose of the membrane surrounding the lysosome?The membrane surrounding the lysosome is vital to ensure these enzymes do not leak out into the cytoplasm and damage the cell from within. In order to maintain the acidic pH of the lysosome, protons are actively transported into the organelle across the lysosomal membrane.
What part of the cell is a membranous sac?
A vesicle is a small, membrane-bound sac that transports substances in cells. The ER moves proteins and other substances within eukaryotic cells. Vesicles that contain newly made proteins move through the cytoplasm from the ER to an organelle called the Golgi apparatus.
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which enzyme pairs corresponding nucleotides to a preexisting dna chain in order to synthesize a new strand of dna?
Answer:
✓ DNA polymerase
Explanation:
cells obtain energy by ________ food molecules such as glucose.
Answer:
Crushing them
Explanation:
diffusion and osmosis are examples of __ transport.
The skeletal system is NOT responsible for which of the following?
1. Protecting the vital organs.
2. Being a storehouse for minerals.
3. Creating red blood cells.
4. Moving red blood cells around the body.
Explanation:
The skeletal system is reponsible for
1. Protecting the vital organs. ✅
2. Being a storehouse for minerals. ✅
3. Creating red blood cells. ✅
4. Moving red blood cells around the body. ❌ moving red blood cells aroud the body is the job of the blood (circulatory system)
the principle of ________ is the concept that ancient life forms evolved in a definite order and therefore their fossils can help determine the geologic ages of strata.
Answer:
Principle of fossil succession is the concept mentioned above.
Explanation:
i used g o o g l e but that's all i could find so if its right please give Brain l i e s t
Jessica is doing an investigation to see how many birds come to the tree in her backyard each morning. She repeats her investigation every morning for four days. Her data is shown below.
Number of Birds Observed
Day of the Week Number of Birds
Monday 7 birds
Tuesday 5 birds
Wednesday 6 birds
Thursday 2 birds
Average = 5 birds each day
How would the result of her investigation have been different if she had only counted the birds on Thursday?
Answer:
thrusday
Explanation:
i would invenstigation on the day thrusday
what is the canadian take on the bloody mary called?
How are organisms classified into subgroups?
Identify the type of cell shown
PLEASEEEE !!! I know it is probably easy
Answer:
where is the cell?
Explanation:
FILL IN THE BLANKS:
In a pedigree, ____ are represented by squares, and ____ are represented by circles.
Answer:
1) Males
2) Females
Explanation:
In a pedigree, Males are represented by squares, and Females are represented by circles.
Cell theory states that all living things contain one or more cells. Why do you think cell theory meets the definition of
a scientific theory? Do you think it should be a scientific law? Explain your response.
Explanation:
OK, first of all, let me explain to you, what is a scientific theory...
A scientific theory is an explanation and demonstration of an aspect that exists in the natural world or universe that has been verified by the scientific way through repeated testing of the experiment with accepted protocols of observation, measurements and evaluation of results.
A scientific law is generated in the same procedure as above, but it can predict a wide range of natural phenomena.
Ex-: you are throwing a basketball from the top of a dam to the river. according to physics on earth, it should fall down. it's a law. no matter where you are, that basketball touches down the ground if there's any gravitational force.
But cell theory cannot be assumed to be common throughout the entire universe. Because we may find some other form of life that has some other plans. viruses are not obeying this theory.
*In a nutshell, a law is stable from its' origin. most of the time, it won't change. but theories will change with updating facts of science.
what cell structure is made of a bilayer of phospholipids and proteins
Answer:
the Plasma Membrane
Explanation:
Like all other cellular membranes, the plasma membrane consists of both lipids and proteins. The fundamental structure of the membrane is the phospholipid bilayer, which forms a stable barrier between two aqueous compartments.
Animal cells like to be in equilibrium
with their surroundings. What type of
solution would this be?
A. hypertonic
B. hypotonic
C. isosmotic
D. isotonic
Please help asap
Animal cells tend to do best in an isotonic environment, plant cells tend to do best in a hypotonic environment.
Answer:
D
Explanation:
when in this environment, water homeostasis is maintained and the cell will neither shrink or swell
what weather factor is also a meausurement of energy held within the air?
Answer:
Answer:Temperature is the amount of heat energy contained in the air, and we measure this in degrees.
Mark me as the brainlist
Where should a prep table be located
In the 21st century, the international community tried to punish North Korea
because:
A. it refused to join the United Nations.
B. it treated racial minorities poorly.
C. it committed human rights violations.
o
O
D. it invaded several neighboring countries.
Answer:
d it invaded several neighboring countries
Explanation:
A recent diet trend has made snack cakes far less popular than they once were. As such, demand for snack cakes is expected to
fall. As demand falls, (1 point)
o producers make lower profits, and some will exit the market
O consumers face lower prices, and are encouraged to consume more
O consumers face higher prices, and are encouraged to consume less
O producers make higher profits, and more will enter the market
Producers make lower profits, and some will exit the market. The correct option is A.
Thus, Reduced demand for snack cakes will probably result in decreased profitability for producers, and some may even decide to leave the market.
This decline in demand could affect the profitability of snack cake producers by resulting in lower sales and revenues.
In addition, prices may drop as a result of the decline in demand to entice customers to purchase more of the falling snack cakes.
Thus, Producers make lower profits, and some will exit the market. The correct option is A.
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does an object need to able to perform all characteristics of life? Why or why not?
(c) Make a claim about the most immediate effect on the fused B-cancer cells if the fused cells are transferred to a growth medium that lacks a source of nitrogen.
Answer:
CLAIM: IF THE FUSED B CANCER CELLS ARE GROWN IN A MEDIUM THAT DOES NOT CONTAIN NITROGEN SOURCE, THE CELLS WILL STOP SYNTHESIZING PROTEINS AND THEIR LIFE SPAN WILL BE GREATLY REDUCED
Explanation:
The growth medium that was used to reproduce the fused cancer B cells contains nitrogenous compounds that serves as source of nitrogen for the production of nitrogenous bases of DNA, If the nitrogen source is removed, the DNA in the nucleus of the white blood cell will lack adenine and guanine, which are necessary for the synthesis of DNA molecules.
2. Nitrogen is an integral part of DNA and protein. Nitrogen is needed to produce nitrogenous bases that are found in DNA. The DNA molecule is the one that initiate and direct the synthesis of protein in living cells.
In the fused B cancer cells, DNA must be produced, so that the dividing cancerous cells can continue their uncontrolled division, this will keep the cells alive. Nitrogen is also needed for the continuous synthesis of the special protein that the fused B cell is producing.
Thus, if nitrogen source is removed from the growth medium used for the cultivation of fused B cells, then the cells will stop synthesizing protein, their life span will be greatly reduced and they will eventually die out.
Which of these macromolecules are made of fatty acid molecules?
O proteins
O lipids
O carbohydrates
nucleic acids
Question 16
how many days can sperm live inside a woman’s body
Answer:
up to 5 days
Explanation:
this is the right answer
Put the components of the visual projection pathway in order starting with the retina and ending with the brain. Instructions Choice 1 of 6. Optic radiations toggle button Optic radiations Choice 2 of 6. Optic tracts toggle button Optic tracts Choice 3 of 6. Bipolar and ganglion cells of the retina toggle button Bipolar and ganglion cells of the retina Choice 4 of 6. Hemidecussation in optic chiasm toggle button Hemidecussation in optic chiasm Choice 5 of 6. Lateral geniculate nucleus of thalamus toggle button Lateral geniculate nucleus of thalamus Choice 6 of 6. Primary visual cortex in the occipital lobe toggle button Primary visual cortex in the occipital lobe
Put the components of the visual projection pathway in order starting with the retina and ending with the brain. In order, starting from the lowest to the highest, we have:
Bipolar and ganglion cells of the retina Hemidecussation in optic chiasmOptic tracts Lateral geniculate nucleus (LGN) of the thalamusOptics RadiationPrimary visual cortex in the occipital lobeThe visual projection pathway is referred to as the channel through which electrical impulses created by the retina are transmitted to the brain.
When light penetrates the eye into the retina;
The bipolar and ganglion cells carry the signals from photoreceptors (cones and rods) to ganglion cells, either actively or passively.The axons of the ganglion gather and unite to form the optic nerve.The optic nerve leads to the optical chiasm where hemidecussation of the optic nerve fiber takes place.In the Optic Chiasm, the optic tract contains the nasal fibers that join from the left eye and connect with temporal fibers from the right eye, vice versa.The lateral geniculate nucleus (LGN) which connects from the optic tracts has nerve endings that send optical radiation information from the superior visual fields to the inferior visual fields.The primary visual cortex region is largely located on the occipital lobe of the medial brain surface, its function is to receive and process the optical radiation information sent from the (LGN).
Therefore, we can conclude that we understood the order, mechanism, and process in the visual projection pathway.
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If you crossed two plants from the F2 generation, what procedure would you follow to determine the genotypes of the next generation?
Answer:
You would use a test cross to determine the next generation
Explanation:
If you crossed two plants from the F2 generation, test cross procedure you should follow to determine the genotypes of the next generation.
What is a test cross?Another important tool created by Gregor Mendel is the test cross. A test cross is a genetic experiment that involves crossing a homozygous recessive organism having a dominant phenotype with an unidentified genotype (and phenotype).
A test cross is a tool for investigating an organism's genetic makeup. The test cross was initially employed as an experimental mating test to identify the genotype's allele composition.
Therefore, to determine the genotypes, the test cross gets its name from the fact that it can tell whether a person has a homozygous dominant or heterozygous dominant trait.
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bacteria with rod-shaped cells connected end-to-end are called _________.
Answer:
A bacillus (plural bacilli), or bacilliform bacterium, is a rod-shaped bacterium or archaeon. Bacilli are found in many different taxonomic groups of bacteria
Explanation:
Hope this helps.
Answer:
bacilli
Explanation:
You just studied 27 terms! 1/27.
Natural laws are:
a. a process of discovering the answers to questions.
b. a preliminary explanation.
c.rules that explain how all things in the entire universe always behave.
d. a form of inquiry.
Answer:
bxhxnxvjxxvhxjxjxbxbxhx xhxbxbxjx
What is the smallest family in the phylum Aves?
one who gets it right get brianlyness! (if i can find the button..)
Answer:
birds
Explanation:
All the websites I've found confirm this.
:)
