Answer:
A. The model illustrates active transport because energy is required for solute particles to cross the cell membrane.
Explanation:
Active transport is the transport of molecules from a region of lower concentration to a region of higher concentration. In other words, movement occurs against a concentration gradient.
Due to this, it requires energy in form of ATP for this movement to occur. Hence, based on this question, the model illustrates active transport because energy is required for solute particles to cross the cell membrane.
1. The barnacles secrete a cement-like substance that anchors them to rocks in the
a. Intertidal Zone
b. Mangrove Forests
C. Pond Area
d. Tropical forests
Describe how the egg gets from the ovary to the site of fertilisation.
Answer:
The ovaries produce the egg cells, called the ova or oocytes. The oocytes are then transported to the fallopian tube where fertilization by a sperm may occur. The fertilized egg then moves to the uterus, where the uterine lining has thickened in response to the normal hormones of the reproductive cycle.
Explanation:
I hope it helps you *(^ - ^ )*
Which species do you think is the best adapted to a diet of small, delicate seeds? explain why you think so
Which species do you think is the best adapted to a diet of large, tough-to-crack seeds? Explain.
Answer:
the second bird below the first one
Explanation:
birds need a big beak to crack shells while some need small ones to eat small seeds.
HELP!!! why is land considered a resource??
PLEASE HELP!! I NEED THIS ASAP
Answer:
B
Explanation:
goodluck
Answer:
its b
Explanation:
because it is
Is a reflex part of the central
nervous system, the peripheral
nervous system, or both? Explain.
Answer:Because the peripheral nervous system transmit reflex impulses from sense organs to central nervous system and then back to the sense organs. So both the Central nervous system and the peripheral systems are involved.
To understand a bit better.....
One of our body parts consists of a nervous system it is a complex network of neurons and cells that carry pieces of information to and from the brain and spinal cord to various parts of the body.
So in conclusion...
Yes! The Central nervous system and the peripheral systems are involved!So therefore your question is correct!
Hope this helps!
-Tobie The Dog <3
(p.s a photo has been listed so you know what the nervous system is!)
How do plants in the desert behave to attract pollinators?
A: They don't bloom.
B: They bloom at night.
C: They bloom day and night.
D: They bloom during the day.
Answer:
C: They bloom day and night
Hello
They bloom at night
Explanation:
I just took the K12 test
Describe the preparation of the following mixtures
3.In the same way coffee is a mixture of water caffeine and other components of coffee. It could be a homogeneous mixture (everything is completely dissolved in water or a heterogeneous mixture (some of the substances may not be fully dissolved; e.g., milk.)
Explanation:
I Couldnt Tell What were The Object aside From The coffe--or was Number 3 not coffe?? - anyways That Is all I can answer
The following mixtures are made by mixing the components with each other.
What are mixtures?A mixture is a substance comprised of two or more additional chemical compounds or substances that do not chemically combine. It is really the physical blending of two or more substances such that they may still be distinguished from one another when combined as solutions, suspensions, or colloids. Physical means can be used to separate them. The different components of any combination are not created via any sort of chemical transformation. As a result, each component's unique qualities are unaltered.
A mixture's constituent parts also do not combine chemically to form a new material, in contrast to a compound. Instead, they just combine while retaining their individual traits. The lemonade seen above is a mixture since the ingredients are not present in predetermined amounts. Even though it has more or less sugar or lemon juice, it will still be referred to as lemonade.
Therefore, mixtures are made by mixing the components together.
Read more about mixtures, here
https://brainly.com/question/24898889
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What is the exchange of genes between
homologous chromosomes called?
A Crossing over
B. Independent assortment
C. Criss-Crossing
D. Meiosis
A. Crossing over
During synapsis in meiosis (when the homologous chromosomes pair together during prophase I), is when crossing over occurs, and the chromatids of the homologous pairs "cross over" and swap genetic material.
I would appreciate brainliest, if not that's ok!
During which season does the rabbit population increase most rapidly?
A. Spring
B. Summer
C. Fall
D. Winter
Answer:
a
Explanation:
Does each daughter cell have the same genetic makeup as the original cell? Explain.
Answer:
Each daughter cell contains the same genetic makeup as the original parent cell
Explanation:
After the process of mitosis and cell division 2 new identical daughter cells are created. Each daughter cells contains the same number of chromosomes as the original cell. Therefore, each daughter cell has a complete copy of all the genes that the original cell contained. Making them identical to the original cell.
Prokaryotes do not have a nucleus.
Explanation:
Prokaryotes do have their genomic DNA concentrated and localized to a small area within cell. so its not accurate to say that they do not have a nucleus.
what will happen if an organ does not function properly?
Answer:Balance gets disrupted and body system may not function properly and the human health can suffer very badly. ... The human can suffer muscle failure as well as organ failure.
Explanation:
In the formation of macromolecule, what type of bond joins two amino acid
Answer:
Peptide Bonds
Section 3.2Primary Structure: Amino Acids Are Linked by Peptide Bonds to Form Polypeptide Chains. Proteins are linear polymers formed by linking the α-carboxyl group of one amino acid to the α-amino group of another amino acid with a peptide bond (also called an amide bond).
Explanation:
plss followed me:)
Peptide bond is the answer.
What is it?
It's a chemical bond formed between two molecules when the carboxyl group of one molecule reacts with the amino group of the other molecule, releasing a molecule of water (H2O).
Sleep well after this! Hope it helped.
How much does an egg weigh in vinegar?
14. Did all four children inherit exactly the same traits? Explain.
15.
If two children have the same traits, will they look exactly alike? Explain.
16.
Would any of the children look exactly like their parents? Explain.
I’ll give brainliest
Answer
r u sure u will though
Explanation:
what is the density? is it a metal, nonmetal, or metalloid? what is the mystery element?
Answer:
The density is 3.73 and it is a nonmetal
Explanation:
1865 divided by 500 is 3.73 and the properties seem to suggest that it is a nonmetal
What are dark lines
Answer:
An absorption line in an electromagnetic spectrum, appearing as a black line at visible wavelengths. ... 'Each element or compound in the sample absorbs particular wavelengths of light, resulting in one or more dark lines on its spectrum. '
Explanation:
Answer:
An absorption line in an electromagnetic spectrum, appearing as a black line at visible wavelengths
Explanation:
PLEASE HELP ME ITS FOR SCIENCE DUE TODAY!! (Punnett Squares!)
Answer:
B
Explanation:
Both traits on the left are dominant meaning the offspring would take on that trait no matter what.
how can we be healthy and happy
Answer:
Eat nourishing food & Sleep seven to eight hours a night
Explanation:
Answer:
Read good books
Eat healthy food
Think positive
Explanation:
Please follow me
Some people call Earth the "Blue Planet," why do you think this is? Of all the water on Earth, only about 1% is available for human use. WHY?
Answer:
I think it's not because of the water we use it's the water we have.
Explanation:
Because our planet is made up of 75% water it is naturally the first thing to recognize.
Which two kingdoms are composed of decomposers?
O Protists and plants
O Bacteria and fungi
O Plants and animals
O Archaea and protists
16. List three reasons why the young earth could not support life.
Which statement correctly describes a level of organization in the human circulatory system?
Answers:
Cells are only present in tissues.
O Organ systems are only present in cells.
Tissues are made up of many organs.
Organs are made up of many tissues.
Nitrogen is necessary for building these two organic molecules:
O carbohydrates & lipids
carbohydrates & proteins
nucleic acids & lipids
nucleic acids & proteins
Answer:
D
Explanation:
the major constituents of carbohydrates are carbon, oxygen, and hydrogen while protein contains nitrogen,carbon, hydrogen,and some mineral elements, and lipids major constituents are carbon, hydrogen and little oxygen.
the nucleic acids are packed with histones, which is proteinous, and contain nitrogen too
How many humans are there in india?
Answer:
1.38 billion peoples
Explanation:
in 2020 is the estimated total population in India amounted to approximately 1.38billion people
Answer:
1.38 billion people are there
Need help. Will give brainliest. Answer all these questions.
Answer:
1. The daughter cells are genetically identical because they each contain the same diploid chromosome complement as the original parent cell. It can be seen in the stages shown above that mitosis maintains the chromosome number or complement of a cell.
2. Much of the growth in an adult is attributed to the growth plate in the bones, which is line of cells at each end of the bone that divides rapidly during puberty. As the bones elongate, the muscles also elongate as they are stimulated to grow by stretching and hormonal changes. When puberty is completed, the growth plate calcifies into solid bone and can no longer grow. Muscles can continue to enlarge with athletic activities and can sometimes split with excessive force, but muscle cells typically do not continue to divide. Cells such as your skin, hair, and interior mucus surface cells continue to divide because they are in direct contact with things from the outside world. Bone marrow also continually divides to produce red and white blood cells. Many other cells in your body do not continue cell division.
3. The number of Chromosomes stay the same when the cell divides because before a cell divides it produces new copies of the Chromosomes in the nucleus so when division takes place two genetically identical 'daughter cells', containing the same genes, are formed.
4. – in cells capable of dividing, the period between cell divisions is called interphase – cells spend most of their time in interphase because this is the phase where they perform their functions (obtaining energy, synthesizing products, repair damage, fight disease, duplicate their genetic material and get ready for division)
5. Asexual reproduction is a type of reproduction that does not involve the fusion of gametes or change in the number of chromosomes. The offspring that arise by asexual reproduction from either unicellular or multicellular organisms inherit the full set of genes of their single parent. Asexual reproduction is the primary form of reproduction for single-celled organisms such as archaea and bacteria. Many eukaryotic organisms including plants, animals, and fungi can also reproduce asexually. In vertebrates, the most common form of asexual reproduction is parthenogenesis which is typically used as an alternative to sexual reproduction in times when reproductive opportunities are limited. While all prokaryotes reproduce without the formation and fusion of gametes, mechanisms for lateral gene transfer such as conjugation, transformation and transduction can be likened to sexual reproduction in the sense of genetic recombination in meiosis.
6. Since each of the parent cell’s chromosomes were replicated during interphase, there are two copies of each chromosome in the cell during prophase. Once the chromatin has condensed into individual chromosomes, the genetically-identical chromosomes come together to form an “X” shape, called sister chromatids .
Explanation:
I hope it helps!!
State the level of organization of euglena onion bulb and blood
Answer:
The correct answer is -
Euglena - single-cell organism
Onion bulb - organ
Blood - tissue (connective tissue)
Explanation:
The level of organization of an organ, or organism could be cellular level, tissue level, the organ level, organ system, or a complete organism. These levels are formed by assembling the lower level of the organization.
Euglena is a single-cell eukaryotic organism found in freshwater. These organisms have a very simple level of an organism which is cellular level. The onion bulb is the organ of the onion plant composed of shortened, compressed, underground stems (tissue) that are an organ-level organization.
The blood is considered as connective tissue due to the blood cells present in the matrix called plasm thus, blood is connective tissue.
5. Explain how the structure of a cell's membrane is related to its function,
Which statement best describes codominance and incomplete dominance?
Answer:
This question lacks options, the options are;
A) In codominance and incomplete dominance, both of the alleles are dominant.
B) In codominance and incomplete dominance, neither of the alleles are dominant.
C) In codominance, both of the alleles are dominant; in incomplete dominance, neither of the alleles is dominant.
D) In codominance, neither of the alleles is dominant; in incomplete dominance, both of the alleles are dominant.
The answer is C
Explanation:
Codominance and incomplete dominance are both a type of non-mendelian inheritance pattern i.e. patterns of inheritance that do not follow mendelian principles.
- In codominance, the alleles of a gene are both dominant and hence, both express themselves simultaneously for that trait. An example is the alleles A and B of the blood group in humans where both A and B are dominant in the gene.
- In incomplete dominance, neither of the two alleles of gene is dominant and none is recessive either. This means that the two alleles blend together to form an intermediate phenotype in a heterozygous offspring. An example is the pink flower in four o'clock plants resulting from the blending of red and white alleles.
Answer:
The correct answer is b