Answer:
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The greenhouse effect is a natural process that warms the Earth's surface. When the Sun's energy reaches the Earth's atmosphere, some of it is reflected back to space and the rest is absorbed and re-radiated by greenhouse gases. The absorbed energy warms the atmosphere and the surface of the Earth.
describe the product of mitosis
The result of mitosis is two identical daughter cells, genetically identical to the original cell, all having 2N chromosomes. ... A chromatid, then, is a single chromosomal DNA molecule. In contrast to a mitotic division, which yields two identical diploid daughter cells, the end result of meiosis is haploid daughter cells with chromosomal combinations different from those originally present in the parent. In sperm cells, four haploid gametes are produced.
Which of the following describes the structure of a
mitochondrion?
What do all arthropods have?
6 legs
jointed kegs
8 legs
stiff legs
please help :')
what is the atomic number of this atom?
Answer:
6
Explanation:
The atomic number should be 6. Atomic number is determined by how many protons are in an atoms. In the diagram, 6 protons are shown in the nucleus.
species change over time through a?
Answer:
Evolution
Explanation:
The concept of growth and development and changes , or the hypothesis that species have evolved and formed from previous species, is referred to as evolution. Biological evolution of an organism' features changing over many generations by natural selection. Genetic diversity is needed for evolution to occur.
RNA is used in the process of translation to build proteins. Which of these correctly describes the role of the different types of RNA in protein synthesis? Choose ALL that apply.
A) rRNA makes up the ribosome. Eliminate B) tRNA carries amino acids to ribosome. C) tRNA carries nucleotides to the ribosome. D) mRNA copies the genetic code from DNA and carries it to the ribosome. E) mRNA code is read to determine the sequence of amino acids in the protein.
Answer:
A, B, E
Explanation:
rRNA is ribosomal RNA
tRNA is transfer/transport RNA, and it brings amino acids to the ribosomes so they can make proteins.
mRNA is messenger RNA
Hope it helps :)
Answer:
rRNA makes up the ribosome.
tRNA carries amino acids to ribosome.
mRNA copies the genetic code from DNA and carries it to the ribosome.
mRNA code is read to determine the sequence of amino acids in the protein.
Explanation:
What is meant by a carbohydrase?
how magnification and resolution affect the appearance of objects viewed under a microscope
Answer:
It allows to see objects more clearly.
Explanation:
Magnification and resolution greatly affects the appearance of objects that can be seen under a microscope because these two things make the specimen enlarge in size. Magnification refer to the process of enlarging the apparent size of something to see and observe it clearly while on the other hand, resolution is used to see more details about specimen that can be study in the microscope so we can conclude that both magnification and resolution has a great impact on the appearance of objects.
Which of the following is true about Amoeba? Select all that apply.
They are heterotrophic organisms
They have structures called pskudopods which help them move through water
They are unicellular organisms
They are autotrophic organisms
They are multicellular organisms
They have structures called cilia which help them move through water
Select ALL that apply:
They have structures called pseudopods which help them move through water,They are unicellular organisms,They are heterotrophic organisms.
What are three similarities between biotic and abiotic factors?
i will give brainiest if you help me out !!!
Answer:
Both can occur in the same environment. Both can affect the same animals. Both depend on the environment.
Why is it important for your brain to control many functions automatically?
Answer:
The brain controls what you think and feel, how you learn and remember, and the way you move and talk. But it also controls things you're less aware of — like the beating of your heart and the digestion of your food.
Think of the brain as a central computer that controls all the body's functions. The rest of the nervous system is like a network that relays messages back and forth from the brain to different parts of the body. It does this via the spinal cord, which runs from the brain down through the back. It contains threadlike nerves that branch out to every organ and body part.
Explanation:
If you brain does not, or is unable to perform multiple tasks automatically, you could have trouble breathing on your own, your heart could have problems, even your thought process, movement, and digestion could malfunction. Which could cause a multitude of complications.
Hope this helped, have a great day/night :}
What type of physical evidence is acquired through the senses
Answer: Physical evidence (also referred to as real or direct evidence) is that which is tangible and can be observed with any of the five senses. Examples of physical evidence are blood, hair, fiber, fingerprints, shoe/tire track impressions, etc.
Explanation:
How do the densities of the planets support the Nebular Theory?
Answer:
The solar nebula theory explains that planets are formed by solid bits of matter. What that matter is entirely dependent on the gas and substances available.
Explanation:
mitosis maintains living organisms by which of the following processes?
1. the removal of waste from the body
2. the exchange of gas with the environment
3.the healing of a cut after an injury
4. the formation of sperm and egg
Answer:
3
Explanation:
mitosis helps in the reproduction of identical copies of cells thus helping in the repairing of damaged tissues or replacing worn out cells
Match Column A with Column B
Column A
3.1.1 Division of the cytoplasm
3.1.2 Uncontrolled cell growth
3.1.3 Chromatids lined up at equator of cell
3.1.4 Chromatids joined at this point
3.1.5 Mass of cancerous cells
3.1.6 Skin cancer
3.1.7 Growth and mitosis
3.1.8 Cancer causing factors
3.1.9 Cancer cells that do not spread
3.1.10 Replicated half of a chromosome
Column B
A carcinoma
B benign
C cancer
D meristematic
E carcinogens
F metaphase
G cytokinesis
H tumour
I centromere
J sarcoma
K anaphase
L malignant
M chromatid
N cell cycle
Answer:
3.1.1 Division of the cytoplasm - Cytokinesis
3.1.2 Uncontrolled cell growth - Cancer
3.1.3 Chromatids lined up at equator of cell - Metaphase
3.1.4 Chromatids joined at this point - Centromere
3.1.5 Mass of cancerous cells - Tumor
3.1.6 Skin cancer - Carcinoma
3.1.7 Growth and mitosis - Meristematic
3.1.8 Cancer causing factors - Carcinogens
3.1.9 Cancer cells that do not spread - Benign
3.1.10 Replicated half of a chromosome - Chromatid
Explanation:
The division of the cytoplasm is known as Cytokinesis. It occurs during the later part of the division of the nucleus in both mitosis and meiosis. In Cytokinesis, the cytoplasm of a single parent cell divides in two to produce two daughter cells.
Cancer is a disease condition that results when the growth and division of cells is uncontrolled. It occurs as a result of changes to the DNA either due to environmental factors or heredity factors.
Metaphase is one of the four stages in mitosis. During mitosis, the chromatids which are joined at the centelomere line up at the middle or equator of the cell.
Centromere is a region in the chromosome in which sister chromatids are joined together to form a short and a long arm of the chromosome.
A tumour is a swelling of a part of the body due to the abnormal growth of cells in that part of the body. A tumour may have the ability to spread or not.
Cancers that originate in the skin or tissues lining organs is known as carcinomas.
In plants, meristematic tissues are responsible for growth as they consist of actively dividing or mitotic cells. Meristematic cells are present at the tips of roots,stem and branches.
Carcinogens are agents or factors that are able to cause cancers. They include such agents like chemicals, electromagnetic radiations, some viruses, lifestyle factors, etc.
Benign tumours refers to growths in tissues or organs of the body which are non-cancerous as they do not spread to other tissues or organs in the body.
A chromatid is one-half of a replicated chromosome present in the nucleus of the cell. Two chromatids are joined together at the centromere to form the chromosome.
Before genetic engineering, insulin for diabetics was extracted from the pancreases of slaughtered animals. This was good because it gave diabetics the insulin they needed to maintain their blood sugar levels.
Can you think of any disadvantages of this practice?
This is due today and I really need help
Answer:
There is a chance that the person receiving that insulin will get a bad immune response, and there is a possibility that the animal might have a disease or infectious organisms, that their insulin might contain, and putting it inside a human might transmit that disease.
Explanation:
Which of the following do NOT explain how fossils can be used to support claims of common ancestry and as evidence of evolution?
Fossils show extinct species that are no longer modern.
Transitional forms show intermediate states between ancient and modern species.
Fossils can show the original purpose of the vestigial structures in modern species.
Fossils show the similarities between modern and extinct species.
Which plankton is most efficient in converting solar energy to energy in chemical bonds?
Please help!
How we can use codes for Automation and Robotics?
Answer:
to make them move with the code
ubicación corporal del gusto
Answer:
La sensación de sabor se percibe utilizando dos sentidos corporales simultáneamente: el gusto, detectado en la boca, principalmente en la lengua, y el olfato, radicado en las fosas nasales, en donde se detecta el aroma
2. Is the following sentence true or false? As a cell increases in size, it usually makes extra copies
of its DNA.
Answer:
false
Explanation:
Sedimentation and erosion lead to what characteristic of streams?
A]meandering
B]channeling
C]reduced flow
D]increased salinity
Answer:
b. channeling
Explanation:
Nutrients are needed for: a.cells to produce proteins and other bio chemicals b. Animals to build shells and skeletons c. Plants to grow d. All of these
Answer:
Nutrients are compounds in foods essential to life and health, providing us with energy, the building blocks for repair and growth and substances necessary to regulate chemical processes. There are six major nutrients: Carbohydrates (CHO), Lipids (fats), Proteins, Vitamins, Minerals, Water
Explanation:
List five of the other subject areas involved in the study of ecology
Answer:
1. Organisms
2. Populations
3. Communities
4. Ecosystems
5. Biomes
Explanation:
What is stored energy and where is it in the food chain?
Answer:
At each level in a food chain, some energy is stored in newly made chemical structures, but most is dissipated into the environment. Continual input of energy, mostly from sunlight, keeps the process going. 3.4 Energy flows through food webs in one direction, from producers to consumers and decomposers.
help if you know thank you x
Answer:
C. O2 (Oxygen)
Explanation:
Match Column A with Column B
Column A
3.1.1 Division of the cytoplasm
3.1.2 Uncontrolled cell growth
3.1.3 Chromatids lined up at equator of cell
3.1.4 Chromatids joined at this point
3.1.5 Mass of cancerous cells
3.1.6 Skin cancer
3.1.7 Growth and mitosis
3.1.8 Cancer causing factors
3.1.9 Cancer cells that do not spread
3.1.10 Replicated half of a chromosome
Column B
A carcinoma
B benign
C cancer
D meristematic
E carcinogens
F metaphase
G cytokinesis
H tumour
I centromere
J sarcoma
K anaphase
L malignant
M chromatid
N cell cycle
Answer:
3.1.1 = G
3.1.2 = C
3.1.3 = F
3.1.4 = I
3.1.5 = H
3.1.6 = A
3.1.7 = N
3.1.8 = E
3.1.9 = B
3.1.10 = M
Explanation:
- 3.1.1
Cytokinesis is the process whereby the cytoplasm of a cell divides into two in order to accommodate the already divided nucleus.
- 3.1.2
Cancer is a medical condition that means an uncontrolled division or growth of cells.
- 3.1.3
Metaphase is a stage of mitosis where chromatids line up at the equator of the cell i.e cell plate.
- 3.1.4
Centromere is a point where sister chromatids i.e. replicated chromosomes are joined before separation in the anaphase stage.
- 3.1.5
Tumour is the term given to a mass of cancerous cells. Cells repeatedly divide without control to form a mass called tumour.
- 3.1.6
Carcinoma is a type of skin cancer or rather a cancer that begins in the skin.
- 3.1.7
The cell cycle involves the interphase and mitotic phase. Interphase stage is the stage where the cell grows, multiplies its genetic material and generally prepare while mitosis is the nuclear division.
- 3.1.8
Carcinogens are biological or chemical substances that causes cancers. They are said to be factors that induce cancer.
- 3.1.9
Benign tumor are mass of cancerous cells that do not spread to other parts.
- 3.1.10
A chromatid is the half part of a replicated chromosome. Together, they are called SISTER CHROMATIDS.
Answer the following questions: no links nor files.
Asexual reproduction in plants with flowers is called __________________________
Define Pure:
Answer:
pollination
Explanation:
transfer of pollen grain from the anther to stigma of a plant
this is one characteristic of asexual reproduction, involves only one parent
What is formed inside the nucleus, then leaves and travels to the ribosome for protein synthesis?
mRNA
rRNA
tRNA
ZRNA
Answer:
tRNA
Explanation:
have to have 20 characters
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Which of the following is necessary in order for natural selection to act on a
population?
A. selective pressures that favor certain individuals
B. asexual reproduction through mitosis
C. equal chance of survival for all individuals
D. decrease in diversity through genetic drift
No dam links
Answer:
A
Explanation:
Natural selection occurs when an environment makes organisms with certain traits more likely to survive and reproduce.
Asexual reproduction results in no genetic variation (meaning differences in traits, also called divserity). Genetic variation must be present for certain organisms to be better suited to their environment, because in its absence all organisms share the same traits. This rules out B, C, and D. I hope this helps :)
Selective pressures that favor certain individuals are necessary in order for natural selection to act on a population. Therefore, option (A) is correct.
What is natural selection?The process by which organisms are able to pass on the favorable qualities they possess to their offspring is known as natural selection. Organisms that are better able to adapt to their surroundings have a greater chance of surviving and reproducing in that environment. As a consequence of this, advantageous characteristics become more prevalent over time, whereas undesirable traits become less prevalent, resulting in a change in the genetic make-up of a population.
Natural selection can be influenced by a variety of environmental factors, including predation, competition for resources, and shifts in climate. It is a fundamental mechanism of evolution and contributes to our understanding of the diversity of life on Earth as well as the various ways in which different species have adapted to their surroundings.
Learn more about natural selection, here:
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