Answer:
because they are very light and they're density is very low
Explanation:
i think thats why
Answer:
Leaves float on water since they are too lightweight to break the surface tension of the water. Leaves also contain chloroplasts; which makes sugars using sunlight (a.k.a. photosynthesis). One of the by-products of this process is Oxygen. The oxygen sits in the middle of the leaf, called the Parenchyma. This gives the leaf a lower density than water; thus causing it to float.
2. How does mimicry differ from camouflage?
Answer:
mimicry is copy camouflage is something already has
Explanation:
What did bacteria come from?
Help please??
Explanation:
The evolution of bacteria has progressed over billions of years since the Precambrian time with their first major divergence from the archaeal/eukaryotic lineage roughly 3.2-3.5 billion years ago. This was discovered through gene sequencing of bacterial nucleoids to reconstruct their phylogeny.
What are the charecteristics of epihtelial tissue
Answer:
- covers and lines body surfaces
- minimal intercellular substance
- cells are densley packed together
- cells rest on basement membrane
- simple (single line of cells) and stratified (multiple layers)
- squamous (oval like shape), cuboidal (cube shape), columnar (long rectangle shape)
- vascular (tissue doesn't have its own blood supply)
Explanation:
Hope this helps!
Each replaced cell ______
the original cell.
Answer:
Mitosis
Explanation: Mitosis is a method of cell division in which a cell divides and produces identical copies of itself. The primary mechanism by which organisms generate new cells is through cell division. During this process, a single "parent" cell will divide and produce identical "daughter" cells.
Which statement is true about the differences between plant and animal cells?
A) Only plant cells have cytoplasm.
B) Animal cells are always larger than plant cells.
C) Plant cells have vacuoles, but animal cells do not.
D) Only plant cells have chloroplasts that help make food during photosynthesis.
The statement which is true about the differences between plant and animal cells is that only plant cells have chloroplasts that help make food during the photosynthesis. Thus, the correct option will be D.
What are plant cells and animal cells?Plant cells have a cell wall, as well as an inner cell membrane. In plants, the cell wall surrounds the cell membrane. This cell wall gives the plant cell its unique rectangular shape which is absent in animal cell. Animal cells simply have a cell membrane, but no a cell wall.
The statement which is true about the differences between plant and animal cells is that only plant cells have chloroplasts that help make food during the photosynthesis.
Therefore, the correct option will be D.
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1. Photosynthesis in the Earth's forests produces about half of the oxygen in the atmosphere. Photosynthesis in the Earth's oceans produces the other half of the oxygen in the atmosphere. Why do you think so much photosynthesis occurs in the oceans?
Answer:
Because of sea plants and the use chemical lighting instead of solar light.
Explanation:
The ocean has an aquatic ecosystem in which there is a majority of oceanic planktons, algae, drifting plants, and even some bacteria prepares their own food with the help of photosynthesis.
What is Photosynthesis?Photosynthesis may be defined as the process through which green plants and some algae synthesize their own food (glucose) with the help of carbon dioxide and water in the presence of sunlight.
About 50-70% of photosynthesis occurs in the ocean due to the presence of the excess amount of organisms that perform photosynthesis. It occurs in the euphotic zone of the ocean where sunlight easily falls.
Therefore, it is well described above.
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42. A very large cell will need a large amount of oxygen to sustain its energy needs. Will it efficiently be able
to get the oxygen it needs compared to a smaller cell? Why or why not?
Answer:
What problems do larger cells need to overcome in order to exist. They must overcome the fact that, as they get larger, their surface-to--volume ratio becomes so small that simple diffusion can't take care of their needs (there's not enough surface area for things to come and go in satisfactory quantities
Explanation:
How are the light reactions of photosynthesis important to the production of glucose?
pls help
Answer:
Because light reaction provide the chemical energy in the form of ATP and NADPH.
During the light-dependent reaction, it takes energy from the sun and converts it into chemical energy. This chemical energy is ATP and NADPH.
This is known as the first stage of photosynthesis. The light-independent reactions will then use the ATP and NADPH from the light-dependent reactions and essentially make glucose. This is also known as the Calvin cycle.
The Calvin cycle will use the enzymes and create sugar, or glucose, from the carbon dioxide. This can be put into three steps, fixation, reduction, and regeneration.
The state of matter of a material depends on its _____
A) density
B) tempature
C) volume
D) weight
The state of matter of a material depends on its temperature. Therefore, option B is correct.
What is the state of matter?One of the several configurations in which matter can exist is a state of matter. Solids, liquids, gases, ionized plasma, quark-gluon plasma, bose-einstein condensate, and fermionic condensate are the seven states of matter.
Particles in a solid, liquid, or gas move more quickly because their kinetic energy increases as their temperature rises. The particles slow down as the temperature drops. When a liquid is sufficiently cooled, it turns into a solid. A gas is created when a liquid is sufficiently heated. The most affected state of matter is gas.
This is how the state of matter of a material depends on its temperature. Therefore, option B is correct.
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Which base pairs with thymine (T) in RNA?
Answer:
Uracil
Explanation:
Adenine pairs with thymine and cytosine pairs with guanine in DNA but when it's RNA thymine is replaced with uracil
Are these answers correct?
Answer:
yes it is correct. the water potential and solute are both correct
Answer:
yes, those are correct:)
Explanation:
hope this helps:))
help me pleaseeeeeeeee
Answer:
múltiple allele because the offspring have alleles from both parents
Explanation:
is the C).
Mendel’s law of segregation states that
Answer:
The principles that govern heredity were discovered by a monk named Gregor Mendel in the 1860s. One of these principles, now called Mendel's Law of Segregation, states that allele pairs separate or segregate during gamete formation and randomly unite at fertilization.
Explanation:
Is precipitation abiotic or biotic
Answer:
abiotic
Explanation:
Biotic- Living things
Abiotic- Nonliving things
Precipitation- Rain, snow, sleet, hail, etc.
Rain, snow, sleet, hail are not living things or biotic because they dont move, or do anythings that humans or plants or animals do. Instead, they are abiotic or nonliving things!
how can I define Anatomy
Answer:
What is anatomy?
Anatomy, a field in the biological sciences concerned with the identification and description of the body structures of living things. Gross anatomy involves the study of major body structures by dissection and observation and in its narrowest sense is concerned only with the human body.
or
The branch of science concerned with the bodily structure of humans, animals, and other living organisms, especially as revealed by dissection and the separation of parts.
Example of an anatomy
The study of the structure of the human leg is an example of a study in the field of anatomy. Animal anatomy is also called zoomy or zootomy; vegetable anatomy, phytotomy; and human anatomy, anthropotomy.
Two major types of anatomy
1) Gross (macroscopic) anatomy is the study of anatomical structures that can be seen by the naked eye, such as the external and internal bodily organs.
2) Microscopic anatomy is the study of tiny anatomical structures such as tissues and cells.
Which statement best illustrates how an organism maintains homeostasis?
Desert pack rats are active at night to conserve water.
Young hawks have different kinds of feathers than adult hawks.
Parents pass their traits to their offspring.
Female barn swallows mate with long-tailed males.
Answer:
first one
Explanation:
makes most sense,taking testrn
Several different amino acids join together to form a protein. How do any two types of amino acids differ from one another?
Every amino acids have the alpha carbon which is bind with hydrogen atom, carboxyl group, and amino group, R group. Due to variation in R group each amino acid is different from one another.
What is amino acid?Amino acids are the basic organic component of protein which is essential to life as they involved all cell functions.
Some proteins act as enzymes, antibodies, some provide structural support. There are 20 essential amino acids as they cannot naturally synthesized.
Structurally amino acids composed 4 different parts such as alpha carbon, a hydrogen atom (H), a Carboxyl group (-COOH), one Amino group (-NH2) and finally a variable R group.
On the basis of variable R group, amino acids have 4 categories such as nonpolar, polar, negatively charged, and positively charged.
The amino acid sequence is the collection of information stored in genetic code of DNA and RNA.
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This diagram is an example of which global cycle?
phosphate cycle
carbon cycle
water cycle
nitrogen cycle
The correct answer is Water cycle
Explanation:
The diagram presented shows how water, water vapor and even ice/snow flow from one system of the Earth to another. In this, there are included processes such as evaporation that implies water from water bodies turning into water vapor and going to the atmosphere; transpiration that involves the evaporation from the plants, and precipitation as rain, snow, or similar occur and water returns to the surface of Earth. According to this, the cycle depicted is the water cycle.
How did we end up with 8.7 million species?
A protein that is bound for secretion from a cell is produced by ____
A. Ribosomes floating free in the cytoplasm
B. Ribosomes within the golgi apparatus
C. ribosomes found on the rough endoplasmic reticulum.
D. Ribosomes found on the smooth endoplasmic reticulum
Answer:
I think B but I still could be wrong
sorry is I'm wrong
A protein that is bound for secretion from a cell is produced by ; ( C ) Ribosomes found on the rough endoplasmic reticulum
Proteins bound for secretion are produced by the Ribosomes that are found on the rough endoplasmic reticulum because the Ribosomes synthesizes the protein chain while sending it to the cisternae ( contained in RER ).
The proteins synthesized and sent to cisternae are then secreted from the surface of RER.
Hence we can conclude that A protein that is bound for secretion from a cell is produced by Ribosomes found on the rough endoplasmic reticulum.
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Why do we use microscopes to study cells?
Answer:
Explanation:
Because most cells are too small to be seen by the naked eye, the study of cells has depended heavily on the use of microscopes. .
Answer:
We use microscopes to study cells because most cells and cell organelles cannot be seen with the naked eye.
Explanation:
What are some effective ways to clean-up polluted water? Support your answer
Below is a diagram of the male reproductive system in humans.
The reproductive function of the organ indicated by the arrow is to
A. mix the sperm with fluids to make semen
B. transfer sperm cells to the urethra
C. store sperm cells until they mature
D. produce new sperm cells
The indicated parts serves to mix the sperm with fluids to make semen Option A
What is the male reproductive system?The group of organs and tissues known as the male reproductive system are in charge of producing male s--ex hormones as well as sperm creation, storage, and delivery. Its main job is to create and transport sperm for fertilizing eggs and starting the reproductive process.
The paired seminal vesicles are glands that create seminal fluid, a fluid rich in nutrients that feeds and shields the sperm.
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When did Jean Baptiste Lamarck states that all species on Earth are descendants of other less complex species?
Answer:
1744-1829 is when she said that
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
A cell is placed in a beaker of solution. After the cell is placed into the beaker, students observe that it increases in size. Which statement best explains the process being modeled by the cell?
A.
The processes needed for the cell to communicate with other cells.
B.
The processes needed for the cell to take in nutrients.
C.
The processes needed for the cell to move.
D.
The processes needed for the cell to reproduce.
Answer:
The best answer would be A
Explanation:
Glad I could help you!
After the completion of meiosis II, how many copies of gene A does each of the daughter cells contain?
Answer:
1
Explanation:
During meiosis, a diploid cell ultimately forms four haploid gametes that go on to take part in fertilization. Because they are haploid. that means they have one copy of all of the chromosomes and the genes contained within them.
First, the DNA is replicated, and then two cell divisions take place form the haploid gametes. So at first, there are two copies of each gene, creating four after the DNA is replicated.
After the first cell division (meiosis I) there are two cells with 2 copies of every gene. Then to form the haploid gamete, there is another cell division (meiosis II) creating 4 cells each containing one copy of every gene
whitch is a term for decomposer
What is the largest bone in the human body?
Answer:
femur
Explanation:
the upper leg bone that connects to the socket in your hip
You conduct an experiment to see how different colors of light affect the growth of sunflowers. At the end of each week, you measure the height of each flower and record the data in your journal.
What is the independent variable in the above example?
Answer:
hi shelbi
Explanation:
Since plants are naturally green thanks to the pigment chlorophyll, green light has the least impact on them. Additionally, changing colored light aids plants in achieving various objectives.
What elements make up an experiment's independent variables?
The variable you alter, regulate, or change in an experimental study to examine its effects is known as an independent variable.
It is named "independent" because it is unaffected by any other study variables. Other names for independent variables include: Explaining factors
For instance, blue light promotes the growth of vegetative leaves. Plants can blossom when red and blue light are present together.
The independent variable (height) influences the dependent variable (height).
Therefore, performing an experiment, the independent variable refers to the thing you change, and the dependent variable refers to the thing that changes as a result of that change.
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Happy halloween. MORE POINTS. AND BRAINLIEST. FOR ALL OF YOU
Answer:
halloween!! yayayayya
Explanation:
Answer:
henlo.
Explanation:
i am Mr.doge the meme
