Answer:
Mitosis
Explanation:
The second stage Mitosis, It is the process in cell division where the nucleus divides into two nuclei.
Hope it helps!
27. In 1986, a meltdown of a nuclear reactor in the city of Chernobyl, in Ukraine, released highly radioactive chemicals into the atmosphere. As a result, people suffered various forms of cancer because of exposure to these radioactive chemicals. Cancerous cells divide much more often than noncancerous cells and form tumors in the body.
(A) The radioactive chemicals burned people’s skin, which increased cell division rates in the people who developed cancer.
(B)The radioactive chemicals polluted people’s food, which changed some people’s ability to digest proteins and caused cancer.
(C) The radioactive chemicals caused structural changes in people’s genes, which changed how proteins functioned in cell division.
(D) The radioactive chemicals polluted people’s drinking water, which caused cells to divide more quickly in the people’s bodies and form tumors.
Answer:
I believe the answer could be B
During the period of time labeled Z in the graph, there is a drastic change in biodiversity. Which of following best describes the ecosystem at the rnd of time period Z?
Answer:
D: The ecosystem has a low biodiversity, so there is less competition over available resources among the species
Explanation:
In a pedigree, a rare trait appears in both sexes with equal frequency, and each affected offspring has one affected parent. What is the most likely mode of inheritance?
Answer:
Autosomal dominant inheritance
Explanation:
The most likely mode of inheritance of the trait would be autosomal dominance.
In autosomal dominant inheritance, a dominant allele on a non-sex chromosome is responsible for its transmission across generations. Unlike autosomal recessive traits that require two recessive alleles for their transmission, only one dominant allele is required for autosomal dominant traits and the implication is that it appears in every generation and both males and females have an equal chance of inheriting such traits.
Hence, for a rare trait that appears in both sexes with the same frequency and each affected offspring has one affected parent, the most likely mode of inheritance would be autosomal dominance.
Which family in the periodic table has metals that are usually harder than other metals?
Alkali metals
Alkaline earth metals
Lanthanide series
Transition metals
Answer:
Transition metals
Explanation:
The transition metals are usually harder than other metals such as the alkali metal, lanthanide series metals and the alkaline earthmetals.
The reason for this is because they have a stronger metallic bonding between their atom.
Hardness is a physical property which is attributed to intermolecular forces and the atomic arrangement
The transition metals are found in the d - block on the periodic table.
They have a d-orbirtal which confers extra electrons and higher degree of stability to the atom. The d-orbirtal provides more delocalized electrons for the metallic bonds formed.
Answer:
The answer is D), transition metals
Explanation:
I searched it up, and the only metal with hardness showing as a significant property was transition metals. I took the test, and transition metals is the answer. I also pulled this up on the internet:
Transition metals are hard which indicates the presence of covalent bonds. This happens because transition metals have unpaired d-electrons. The d-orbital which contains the unpaired electrons may overlap and form covalent bonds. Therefore, these transition metals are very hard.
Life has changed through the process of
Answer:
Life has changed through the process of evolution
Explanation:
Evolution is defined as a change in the proportion of traits of genes from one generation to the next
Which image represents cytokinesis in a plant cell?
Answer:
D
Explanation:
gl (:
A crucial function of cytokinesis is to divide the cell in half and make sure that one nucleus is placed in each daughter cell. Thus, option D is correct.
What is the importance of cytokinesis in plant cells?The four steps of cytokinesis are membrane insertion, contraction, and completion. Animal and plant cells experience these stages in different ways.
The assembly and action of an actomyosin-based contractile ring during animal cytokinesis were characterized as occurring at the cell periphery.
In contrast, it was thought that plant cell cytokinesis involved the centrifugal formation of a new cell wall through the fusion of vesicles generated from the Golgi apparatus.
Therefore, The process of cytokinesis begins at the anaphase phase of nuclear division and lasts until telophase.
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BIOLOGY - QUARTER 2 - SUN
Which two bio molecules must the supplement contain to provide these benefits
Answer:
Proteins and Carbohydrates
The supplement has to build lean muscle and strengthen tendons and ligaments. Muscle, tendons, and ligaments are all made of protein. So the supplement must contain protein.
It should also provide energy. The most readily used form of energy is carbohydrates
Enter your answer in the provided box. Calculate the frequency of the genotype Aa from a population that is made up of the following numbers of individuals: 41 individuals with the genotype AA 23 individuals with the genotype Aa 28 individuals with the genotype aa frequency of individuals with genotype Aa g
Answer:
25% or 0.25
Explanation:
The frequency of the genotype Aa from the population can be calculated from the formula;
Frequency of Aa = number of individuals with Aa/total population
number of individuals with Aa genotype = 23
Total population = 41+23+28 = 92
Hence,
Frequency of Aa = 23/92 = 0.25 or 25%
HELP!!
What can every Florida citizen do on a daily basis to help prevent further damage to the environment?
O join one of the many ecological organizations
O give money to the Sierra
Club or other NGOs
O make environmentally conscious choices
O lobby the government for more money
Answer:
The answer is "make environmentally conscious choices"
Explanation:
All the human are the reasons for global environmental change through a subset of proximate causes, which straightforwardly modify parts of the climate in manners that have worldwide impacts. We start this section by laying out and showing a way to deal with representing the major proximate reasons for worldwide change, and afterward continue to the more troublesome issue of clarifying them.
Different contextual analyses delineate the different ways human activities can add to global environmental change and give solid foundation to the more hypothetical conversation that follows. We have recognized explicit exploration needs all through that conversation.
While standing near a river, a student noticed small rocks colliding with larger rocks, causing small pieces to break off and be carried
downstream. What processes is the student observing?
A. The small rocks are chemically weathering the larger rocks and erosion is moving the pieces downstream.
B. The small rocks are chemically weathering the larger rocks and deposition is moving the pieces downstream.
C The small rocks are mechanically weathering the larger rocks and erosion is moving the pieces downstream.
D. The small rocks are mechanically weathering the larger rocks and deposition is moving the pieces downstream.
what are some early signs of MBD in bearded dragons
Answer:
stress lack of eating Constipation and weakness
Explanation:
are the main ones
Which of the following is not true of asexual reproduction?
A offspring that differ genetically from either parent
B offspring inherit all their genetic material from just one parent
C a single cell duplicates its genetic material, and then splits into two new genetically identical cells
D an example is a paramecium
Answer:
idk
Explanation:
Answer:
D
Explanation:
I don't need to put 20 charavters
Which of these choices do both sustainable and organic agriculture avoid?
Answer:
You are saying which one but what is which one???
Explanation:
Today, prairie ranchers and farmers raise:
sheep, cattle, and pigs
COWS, deer, and bison
O horses, cows, and bison
o hawks, owls, and snakes
Answer:
sheep, cattle, and pigs
Explanation:
From sheep, cattle, and pigs, the most raised animal on the farms today is beef cattle. The reason why cattle is the first choice is its profitability. The cattle are easy to maintain, they just need good pasture and freshwater, some supplemental food during the winter, and enough space.
Identify which list of questions below would all be classified as Abiotic
Options:
Deer, fern, mushroom, soil
Weather, volcano, sunlight, river
Elephant, fish, weather, fern
Sunlight, river, deer, volcano
The list of options that would be classified as abiotic are sunlight, river, deer, volcano (option D).
What are abiotic factors?An ecosystem is the interconnectedness of organisms (plants, animals, microbes) with each other and their environment.
An ecosystem is composed of biotic and abiotic components. Biotic factors are those factors that have life while abiotic factors are those without life.
Biotic factors or components include the following:
Plants e.g. ferns, mushroomsAnimals Microbes e.g. bacteriaTherefore, the list of options that would be classified as abiotic are sunlight, river, deer, volcano.
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Why should there only be only one independent variable in an expirement
what is mitosis can do
Answer:
The purposes of mitosis are : cell renewal. repair of injuries. asexual reproduction. growth of organisms.
Explanation:
The purpose of mitosis is cell restoration, growth, and asexual reproduction, while the persistence of meiosis is the generation of gametes for sexual reproduction.
• Some nitrogen fixing bacteria help
increase the fertility. This makes the
soil more productive. What activity of
bacteria helps make soil more
productive?
●
(a) Supplying compounds of nitrogen
to the plant roots.
(b) Breaking down nitrogen rich waste
into nitrogen gas.
OUTLO
(c) Breaking down compounds of
nitrogen to release nitrogen gas.
(d) Taking up nitrogen from the air
and converting it into compounds of
nitrogen
Explanation:
This makes the soil moreproductive. What activity of bacteria helps make soil more productive? (a) Supplying compounds of nitrogen to the plant roots.
1
Gases and
Photosynthesis
0)
The diagram shows the gases that enter and leave a plant during photosynthesis. Which
gases do arrows 1 and 2 represent?
*
(Photosynthesis)
(1 Point)
Arrow 1 represents nitrogen and arrow 2 is oxygen
Arrow 1 represents oxygen and arrow 2 is nitrogen
Arrow 1 represents oxygen and arrow 2 is carbon dioxide
Arrow 1 represents carbon dioxide and arrow 2 is oxygen
Answer: Arrow 1 is carbon dioxide, and arrow 2 is oxygen
Explanation: I got it right in a test.
Photosynthesis is the process of preparing food in the presence of sunlight, water, and carbon dioxide. The process is carried out by the plants and certain bacteria and algae.
The correct answer is:
Option D. Arrow 1 represents carbon dioxide and arrow 2 is oxygen
The mechanism of photosynthesis can be explained as:
Photosynthesis is the process in which light energy is converted into chemical energy. The plants use up carbon dioxide and water in the presence of sunlight to yield products. During photosynthesis, the plants yield oxygen as a by-product and produce a sugar molecule to be used as energy.
Thus, the plants use carbon dioxide and give out oxygen during photosynthesis.
To know more about photosynthesis, refer to the following link:
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What’s the relationship between ants and large blue butterfly larva?
a) competition
b) predation
c) mutualism
d) commensalism
Answer:
its D commensalism, one benefits from it and the other gets no harm
Explanation:
In the PBS video about the marathon, the speaker discusses several pieces of information about why humans are well equipped for running. The majority of his support for this position comes from which discipline?
You Answered
Well the PBS kid television is about to teach kids how to behave and be disciplined .
Explanation:
They also have them to learn.
please answer this question and I will mark you as brainliest. for who get the correct answer.
Answer: Your answer is The Lac Repressor
Explanation: I've taken this test before, it is correct.
What is the second step in the classification of living things
Answer:
The classification of living things includes 7 levels: kingdom, phylum, classes, order, families, genus, and species
Which early farming tool removed the stalk and the grain from a husk of wheat?
Answer:
thresher
Explanation:
DNA contains four types of nitrogenous bases. One of these bases is
Answer:
Explanation:
adenine (A), thymine (T), cytosine (C), and guanine (G).
Genetic engineering is the manipulation of genes using cloning and transformation to change the
gene structure. Genetic engineering has many positive outcomes. These positive outcomes include
a. Manipulation of crops decreasing growth rate.
b. decreasing the diversity of living organisms
c. increasing the possibility of new pathogens
d. fruits and vegetables do not spoil easily
Answer:
B
Explanation:
Which organism is most likely 10cm in size
Answer:
A lizard is approximately 10 centimeters in size, so the answer is "lizard".
Why did polio vaccine make people paralysed?
Answer:
When it multiplies in the nervous system, the virus can destroy nerve cells (motor neurons) which activate skeletal muscles. These nerve cells cannot regenerate, and the affected muscles lose their function due to a lack of nervous enervation.
Explanation:
Which of the following molecules supplies the main source of short term energy used in cellular respiration?
More the 90% of the worlds ocean is
Answer:
Inhabited by life
Explanation: