Answer:
By the late 1830s, botanist Matthias Schleiden and zoologist Theodor Schwann were studying tissues and proposed the unified cell theory. The unified cell theory states that: all living things are composed of one or more cells; the cell is the basic unit of life; and new cells arise from existing cells.
Explanation:
Hope this helps
what is the answer to 2 x?=2
Answer:
2x=2
/2 both sides
x=1
Brainliest plz
Answer:
X=1
Explanation:
2x=2 or 2 times x equals 2 means x times 2 will give you 2 which is the only number 1 because anything times 1 is that number so 2(1)=2 or x=1
Mary wanted to know if seeds needed water to start growing or if any kind of liquid would work. Mary set up several experiments to find out. She used radish seeds, paper towels, plastic bags, and different kinds of liquid in her experiment. Mary put three seeds into each bag. She then used 30mL of liquid to wet a paper towel and put a different paper towel in each bag. Mary put all of the bags on the same table next to a window so that they could each get the same amount of light. She waited three days and then checked her plants.
independent variable:
dependent variable:
control:
experimental group:
control group:
Answer:
independent variable: 30mL of liquid to wet a paper towel
dependent variable: how much the plants grow if at all.
control: they all received the same amount of light, that or the paper towels are the same.
experimental group: It's not stated that she did indeed use water, but there is a need for a control group, if so, then it's the other 2 groups that didn't use water, also because I can't think of anything else.
control group: The groups that used water rather than the other 2 plants.
Explanation:
Why is the red blood cell disc in shape?
Answer:
Red blood cells are disc in shape because it allows the cells to flow smoothly through the narrowest blood vessels and provides flexibility to squeeze through them.
hope it helps you
1. Did the overall population of thr villages increase decrease or remain constant?
2. Did evolution (change in genotype frequency) occur in this population?
3.which genotypes(s) was selected for by natural selection?
4. Which genotypes(s) was selected against by natural selection?
5. Which genotype remained the lowest portion of the population? Why did this percentage remain so low?
Answer: remain constant
2 no
3. 1 2 and 4
4. 4 just 4
5. it remained low because EOF natural selection
What organs are targeted by the hormones secretin and cholecystokinin (CCK) to release pancreatic juice and bile into the small intestine for digestion
if you visit the beach on a hot summer day you will probably feel a Sea Breeze coming off the water onto the land. Which of the following causes this sea breeze?
A. The water is warmer than the land during the day.
B. Hurricanes that form in the oceans blow air into the shore.
C. During the day,solar radiation warms the land faster than the water.
D. Earth is tilted toward the Sun, causing air to move inland from the water
If I am correct, the answer is supposed to be C due to on hotter portions of the day, land warms much faster than the water. This causes cooler air to rise from the oceans and the wind currents then push the air towards the land.
Which part of the plant cell absorbs the energy needed for the process
Answer: chloroplasts
Explanation:
Please answer ! Best answers will be marked as brainliest and will be given thanks and 5 stars , Any unnecessary answer , will be deleted and will hack your points.
Answer:
A. Northern tropic, equator, Southern tropic (I think Im not double sure)
B. Because the sun's rays hit the earth's surface at a higher angle at the equator
C. If earth did not tilt and orbited in an upright position around the sun, there would be minor variations in temperatures and precipitation throughout each year as Earth moves slightly closer and farther away from the sun
D. It is the right distance from the Sun, it is protected from harmful solar radiation by its magnetic field, it is kept warm by an insulating atmosphere, and it has the right chemical ingredients for life, including water and carbon.
Explanation: hope it helps love :)
escribe ONE way that the use of rodenticides affects the kit fox population AND explain how the size of the kit fox population is affected.
One way that the use of rodenticides affects the kit fox population will be a
reduction in the population.
Foxes are secondary or tertiary consumers which feeds on smaller animals
such as rodents in the ecosystem. The use of rodenticides will kill and
reduce the number of rodents available for food.
The reduction in the rodents means lesser source of food for the foxes and a
decrease in the population. The size of the kit fox population is affected
because a larger size being more affected than the ones with a smaller
size/population.
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The movement of water across cellular membranes from a hypotonic to hypertonic environments through aquaporins, which are channel proteins, can be defined as both
A: simple diffusion and active transport.
B: active transport and facilitated diffusion.
C: osmosis and facilitated diffusion.
D: endocytosis and active transport.
Describe the differences between a monocot and a dicot. Are they similar in any way? Provide examples in your explanation. PLEASEE
Answer:
Monocots differ from dicots in four distinct structural features: leaves, stems, roots and flowers. ... Whereas monocots have one cotyledon (vein), dicots have two. This small difference at the very start of the plant's life cycle leads each plant to develop vast differences. They are similiar in ssome ways are they both grow with a type of leave same shae in third growing proscess
Explanation:
Answer:
Hey mate.....
Explanation:
This is ur answer.....
Monocots differ from dicots in four distinct structural features: leaves, stems, roots and flowers. But, the differences start from the very beginning of the plant's life cycle: the seed. Within the seed lies the plant's embryo. Whereas monocots have one cotyledon (vein), dicots have two.
Similarities :-Both monocots and dicots have stamens with two pairs of pollen sacs, male gametophytes of three cells, and female gametophytes made up of seven cells with eight nuclei. Also, the carpel is closed.
Hope it helps!
Brainliest pls!
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Cytokinesis begins with the appearance of a
Answer:
Cleavage furrow
Explanation:
Frequent earthquakes in an area may indicate
Frequent earthquakes in an area indicates that there are tectonic plates boundaries and there is sudden regression of underground rocks. Through the areas when there is sudden movement and dynamic stress along with the sudden triggering.
What are tectonic plates ?Tectonic plates are larger pieces of earth's crust and uppermost mantle. Tectonic plates movement cause the earthquakes to occur.
The other types of earthquakes are that of volcanic earthquakes, induced earthquakes and collapse earthquakes.
Therefore, earthquakes are mainly due to various conditions and other environmental activities that are not under control.
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The Diagram shows structures that form the surface of the trachea.
Which level of organisation is the structure labelled S ?
A. Cell
B. Organ
C. Organ system
D. Tissue
Structure S is a simple columnar epithelium, which is a type of tissue.
The diagram shows the structures that form the surface of the trachea. The trachea is a tube that carries air from the lungs. The surface of the trachea is lined with a layer of tissue called the epithelium. The epithelium is made up of cells that line the inside of the trachea.
The structure labelled S is a type of epithelium called a simple columnar epithelium. Simple columnar epithelia are made up of cells that are arranged in a single layer. The cells in a simple columnar epithelium are tall and column-shaped.
The simple columnar epithelium in the trachea helps to protect the trachea from infection. The cells in the epithelium produce a mucus that traps dust and other particles. The mucus is then carried away by the cilia, which are tiny hairs that line the trachea.
The other levels of organization in the diagram are organ, organ system, and cell. The trachea is an organ, which is a collection of tissues that work together to perform a specific function. The respiratory system is an organ system, which is a group of organs that work together to perform a common function. Cells are the basic units of life, and they are the building blocks of tissues, organs, and organ systems.
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18. Replicate the following four DNA strands using what you know about complementary base pairs.
a. AATACGTCCAGATTTT
c. CCCGCGGAATATACA
b. TTAACCGAGTTCAGA
d. AGGGCTACTTCAGAC
Answer:
a. TTAGCAGGTCTAAA
b. GGGCGCCTTATATGT
c. AATTGGCTCAAGTCT
d. TCCCGATGAAGTCTG
The replication can be TTATGCAGGTCTAAAA, GGGCGCCTTATATGT, AATTGGCTCAAGTCT, and TCCCGATGAAGTCTG respectively.
What is complementary base pairing?Complementary base pairing occurs when guanine always hydrogen bonds to cytosine and adenine always binds to thymine in DNA.
In comparison to the A-T bond, which always shares two hydrogen bonds, the bond between guanine and cytosine shares three hydrogen bonds.
Each strand of the double helix contains all of the information required to reconstruct the other half using the base pairing mechanism.
The strands are said to be complementary because each can be used to make the other.
Complementary base pairing describes how the nitrogenous bases of DNA molecules align with one another. The double-helix structure of DNA is also due to complementary base pairings.
TTATGCAGGTCTAAAA, GGGCGCCTTATATGT, AATTGGCTCAAGTCT, and TCCCGATGAAGTCTG are possible replications.
Thus, these are the complementary base pairing for the given codes.
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science questions , may be out of order but please help asap ( about mitosis ) may be out of order so i made two questions
Answer:
8. Prophase
9. Gap 1
10.Metaphase
Explanation:
Basically from what I remember
Prophase: Mitosis begins, nuclear envelope is gone
Metaphase: Chromosomes line up and spindle fibers attatch
Anaphase: Chromosomes are torn apart to separate sides of the cell
Telophase: Separates duplicated genetic material into 2 identical nuclei
Cytokenesis: The cytoplasm itself separates and forms 2 cells.
Gap 1: Cells increase in size as new organelles are formed
Synthesis: DNA is formed
Gap 2: DNA is checked as cell begins to divide
Mitosis: Cell divides
So from the simplified versions of things I remember, I think the answers listed above probably suit each question best.
Hope I helped a bit!
For each offspring genotype in the Punnett square you just completed, determine the phenotype. In other words, what is the predicted fur color and eye color of the offspring? Using your Punnett square from the last step, fill in the predicted fraction for each phenotype in the data table below.
Black Fur and Black Eyes Black Fur and Red Eyes White Fur and Black Eyes White Fur and Red Eyes
Predicted Fraction
/16
/16
/16
/16
Assuming diallelic genes, expressing complete dominance and not interacting, the predicted fractions are 4/16 Black Fur, Black Eyes - 4/16 Black Fur, Red Eyes - 4/16 White Fur, Black Eyes - 4/16 White Fur, Red Eyes
Available data:
Two traits are involved in this cross ⇒ fur color and eye color.Black fur color is dominant over white fur colorBlack eyes is dominant over red eyesThe cross is between a h0m0zyg0us recessive parent with a dihybrid one. What can we deduct about this information?
Assuming diallelic genes coding for each trait, expressing complete dominance, and no interaction between genes, we can propose the following genotypes and phenotypes.
Genotype Phenotype
BBEE, BbEE, BBEe, BbEe Black fur, Black eyes
bbEE, bbEe White fur, Black eyes
BBee, Bbee Black fur, Red eyes
bbee White fur, Red eyes
How to perform the cross?Cross: h0m0zyg0us recessive parent with a dihybrid parent
Parental phenotypes) White fur, Red eyes x Black fur, Black eyes
Parentals genotype) bbee x BbEe
Gametes) be, be, be, be
BE, Be, bE, be
Punnett square) BE Be bE be
be BbEe Bbee bbEe bbee
be BbEe Bbee bbEe bbee
be BbEe Bbee bbEe bbee
be BbEe Bbee bbEe bbee
F1)
4/16 = 1/4 = 25% of the progeny is expected to be dihybrid, BbEe, expressing black fur and black eyes4/16 = 1/4 = 25% of the progeny is expected to be heter0zyg0us for fur color and h0m0zyg0us recessive for eye color, expressing black fur and red eyes.4/16 = 1/4 = 25% of the progeny is expected to be heter0zyg0us for eye color and h0m0zyg0us recessive for fur color, expressing white fur and black eyes.4/16 = 1/4 = 25% of the progeny is expected to be h0m0zyg0us recessive, bbee, expressing white fur and red eyes.Predicted fraction per phenotypeBlack Fur and Black Eyes ⇒ 4/16 BbEeBlack Fur and Red Eyes ⇒ 4/16 BbeeWhite Fur and Black Eyes ⇒ 4/16 bbEeWhite Fur and Red Eyes ⇒ 4/16 bbee
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Answer: look at the picture
Explanation:
Cellular respiration uses one molecule of glucose to produce approximately
A. 2 atp molecules
B. 4 atp molecules
C. 32 atp molecules
D. 36 atp molecules
Answer and Explanation; Equation for Cellular Respiration:
C₆H₁₂O₆ + 6O₂ --> 6H₂O + 6CO₂ + 36-38 ATP
Products of Cellular Respiration:
Water, Carbon Dioxide, and 36-38 ATP molecules
The answer is (D) 36 ATP molecules.
Which group shown in this figure contains the highest biodiversity
Answer:
insects
I think
hope this helps and I am not sure
___________________________ structure is the distribution of individuals among various age groups in a population.?
Answer:
Distribution structure is the distribution of individuals among various age groups in a population.?
Explanation:
To read signs, you need to have good ________ . focal vision peripheral vision paracentral vision double vision
To read signs, one needs good peripheral vision. The capacity to see things that are beyond of one's direct line of sight is known as peripheral vision. It is the capacity to perceive things that are beyond of one's direct field of vision.
Because it enables a person to perceive items that are situated at the boundaries of their peripheral vision, this form of vision is crucial for reading signs.
For instance, it's crucial to be able to understand signs that are placed along the side of the road when driving. A person might not be able to see the signs and might miss crucial information without adequate peripheral vision. Aside from peripheral vision, clear focus vision is crucial for reading.
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What factors help blood move through veins?
The pumping force of the ventricles moves blood through the arteries. The breathing movements exerts pressure on the chest veins, the valves in the larger veins keep the blood from flowing backwards, and the skeletal muscles' contraction all help the blood in veins to move.
Can anyone please help me
Answer:
because there is no essential conditions like water ,air,ect
A given skull has flaring zygomatics, shovel-shaped incisors, round orbits, and moderate nasal aperture width. The ancestry of this individual is likely ________________
Answer:
Asian or Native American
Which cells can form ATP by breaking down glucose?
a
Prokaryotes only
b
Plants only
c
All cells
d
Animals only
Answer:
C.) All cells
Explanation:
because energy needs plants as well as animals including prokaryotic cell
How does your body respond to an increase in the need for energy----why would you need more energy?
Your body circulates more blood and your heart beats faster.
You need more energy to do activities that take more effort.
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when a tautomeric shift occurs, what is true about the resulting mutation?
When a tautomeric shift occurs, then the resulting mutation ALWAYS changes a purine to a purine or a pyrimidine to a pyrimidine. A tautomeric shift may lead to a point mutation.
A mutation is any alteration in the nucleotide (DNA) sequence of the genome of an individual.
A tautomeric shift can be defined as a temporary change in the nucleotide base structure.
A transition mutation is a point mutation of one purine or pyrimidine base pair to the other purine/pyrimidine that occurs when one nucleotide base undergoes a tautomeric shift during DNA replication.
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Study the diagram showing the range of temperature in the Earth’s layers.
Which temperature most likely corresponds to the asthenosphere?
1,613°C
2,521°C
3,628°C
6,217°C
Answer: a) 1,613°C
Explanation: just took the test
Which parts of a plant or animal contain the genetic information for characteristics like this?
All plants and animals are made up of cells where the genetic material can be found in the form of genes and chromosomes (usually in the nucleus).
Need help please having trouble
Answer:
Brain
toxins
smaller
injury
protein
slow
rest
dementia