What additional evidence
do we have today that
supports Darwin's theory?
A. Cell theory
B. DNA and molecular evidence
C. Process of photosynthesis
D. Method of protein synthesis
Answers
Answer: The answer is A cell theory.
Explanation: For our cells to be as developed and complex as they are today a huge evolutional process was necessary. This process is explained in the cell theory
DNA and molecular evidences are the additional evidences to support Darwin's theory. The correct option is B.
What is Darwin's theory?According to Darwin's theory, all species of organisms emerge and develop through natural selection of slight, inherited variations that significantly raise the individual's capacity to compete, stay alive, and reproduce.
It is backed up by research from a wide range of scientific disciplines, as well as genetics, which shows that DNA from different species is similar.
Fossils, embryological studies, anatomical and morphological characteristics, and molecular biology are examples of evidence that support the theory of evolution by comparing DNA sequences.
Thus, the correct option is B.
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Related Questions
How many earthworms are found in a 100 square meter lot if its density is 39 worms per square meter? Show all work for credit
Answers
Answer:
3900
Explanation:
100 meters x 39 worms per meter = 3900 worms per square meter :)
So: 39 X 100 = 3900 worms
EXPERT HELP I'LL GIVE BRAINLIEST: EXPLAIN THE ANSWER
Answers
How many chromosomes would you find a cell inside a dog’s heart?
IF YOU DON'T KNOW PLEASE DON'T GET THE ANSWER FROM GOOGLE I ALREADY LOOKED IT UP SO DON'T EVEN THINK ABOUT IT.
Answers
Answer:
78 chromosomes/39
Explanation:
Can someone please help me on this question?
The model below represents water.
~insert picture~
Based on the labels, what is the best description of this model?
A. X and Y represent molecules; Z represents an atom of water
B. X represents a molecule; Y represents a particle; Z represents an atom of water
C. X represents an atom; Y represents a molecule; Z represents a particle of water
D. X and Y represent atoms; Z represents a molecule of water
Answers
Answer: D. X and Y represent atoms; Z represents a molecule of water
Explanation:
Molecule - Group of two or more atoms
Water is H2O meaning two hydrogen atoms bound to an oxygen atom.
Answer:
The answer is D
I need help with this science work. I’m terribly confused.
Answers
Answer:
This is a mixture of science and math where both is very important, what you need to do is fill in 1 yard for every 46 million years of each of the events that happened.
Explanation:
your welcome i will always help if you let me just dont expect me to get your work done for you:)
A mother and father have two daughters. The daughters have some similar and some different physical features. Which statement best explains why the daughters’ physical appearance includes both similar and different features?
A: One daughter received fewer genes than the other.
B: Each daughter received a different number of genes from each parent.
C: The daughters received a random set of genes from both of their parents.
D: One daughter received all her genes from her father, and the other daughter received all her genes from her mother
Answers
C: The daughters received a random set of genes from both of their parents.
The physical appearance of an individual is determined by their genes, which are inherited from their parents. Each parent contributes half of their genes to their offspring, and the combination of genes from both parents determines the physical characteristics of the offspring.
When the two daughters inherit genes from both their parents, they receive a random set of genes from each parent, which can result in both similar and different physical features. Therefore, statement C is the best explanation for why the daughters' physical appearance includes both similar and different features.
IF YOU ANSWER ALL THESE QUESTIONS AND THERE ARE CORRECT YOU WILL GET BRAINLEAIST
1. Which part of the flower produces sperm?
2. Which part of the flower attracts pollinators, like bees?
3.What is the name of the male reproductive organ of the flower?
4.What is the function of the stamen?
5. What holds up the stamen?
6. What are the male reproductive parts of the flower?
Answers
Answer:
1. The anther produces the pollen grains that contain the sperm needed for fertilization
2.Petals attract the pollinators.
3.Stamens are the male reproductive organ
4.The main function of the stamen is to produce the pollen grains, which house male gametes , necessary for reproduction.
5.The stamen is made up of two parts: the anther and filament. The anther produces pollen (male reproductive cells). The filament holds the anther up.
6.A stamen consists of an anther (which produces pollen, the male reproductive cell) and a filament.
please mark as brainlsit if it helps
Answer:
1. the anther
2. showy petals and sepals, nectar guides, shape, size, and color.
3. stamen
4. The pollen-producing part of a flower, usually with a slender filament supporting the anther.
5. the anther and filament
6. anther, filament, pollen
Explanation:
Not Biology but Science - 8th Grade
To find the index fossil, write the best choice below to describe each fossil.
Answers
Answer:
32 is 10
Explanation:
Which parts of the compound light microscope can be used to improve the quality of the image being observed?
a.) diaphragm and fine adjustment
b.) ocular and high power objective
c.) coarse adjustment and low power objective
d.) ocular and diaphragm
Answers
a.) diaphragm and fine adjustment
or
d.) ocular and diaphragm
but i’m leaning more towards a.)
Identical twins share all of their genes, while fraternal twins share only half of their genes. For twins with the disorder schizophrenia, about 50% of indetical twins share the disease, while only about 10-15% of fraternal twins do. What does this tell you about the way genetic and envionmental facotrs affect schizophrenia?
Answers
Answer: The environmental factors likely interact with genetic liability negatively to produce disorders in the schizophrenic spectrum. Genetic and environmental components of the disorder are examined, as well as their interactions in producing either neurodevelopmental syndromes or schizophrenia itself.
Explanation:
The differences between identical and fraternal twins are due to how they are conceived. When identical twins are conceived, the fertilized egg splits into two, causing two separate embryos to grow. When fraternal twins are conceived, two eggs are fertilized at the same time.
Many factors normally contribute to the onset of schizophrenia
The actual causes of schizophrenia are not fully understood.
Brain chemistry: Abnormal functioning of neurotransmitters such as dopamine can cause schizophrenia.
Heredity: Schizophrenia tends to run in families. If a parent has the disorder, the offsprings are susceptible to the disease.
What is something special about regional climate?
Answers
please answer the questions below
Answers
1. The particles will speed up as they gain more kinetic energy from their surroundings and try to escape. They will collide with the balloon more and cause gas pressure which over time will cause the balloon to explode.
2. The particles will slow down
3. It has more density unlike water which expands when it’s frozen. Normally a liquid has more volume and less density when heated.
4. 10°C 50°F
5. 0°C 35°C/36°C ( trick question it’s not 10 degrees less Fahrenheit but Celsius for both)
6. The air particles slow down, losing their energy to the surroundings in an attempt to change state.
one product was O2 (oxygen gas). What was the evidence of this gas?
Answers
THERE ARE MULTIPLE ANSWERS Which of the following systems use the cardiovascular system for the transport of materials? excretory system digestive system endocrine system respiratory system immune system
Answers
Excretory
Digestive
50 POINTS!
Energy is transferred into the ecosystem when
1.when bacteria absorbs nitrogen from other organisms
2. dead organisms decay and form organic matter
3. rodent prey on invertebrates
4.plants grow from the soil
Answers
Answer:
2
Explanation:
Energy is transferred between organisms in food webs from producers to consumers.
The energy is used by organisms to carry out complex tasks. The vast majority of energy that exists in food webs originates from the sun and is converted (transformed) into chemical energy by the process of photosynthesis in plants.
Answer: between organisms in food webs from producers to consumers.
Explanation:
All of these plant structures are used in reproduction except
A.) spore
B.) stamen
C.) pistil
D.) phloem
Which one is it
(doing a test that is 100 questions so if i think your answer is good ill give brainly :D)
Answers
Answer:
D) Phloem
Explanation:
Phloem is used in photosynthesis, not reproduction
Make a claim about how the complexity of fossils in the fossil record can provide clues to the relative ages of rock units.
Answers
Answer:
about the geologic history of Earth. How do fossils provide important clues to environmental changes that occurred in earths past?
revealing the ways that organisms have changed throughout the geologic past. ... to learn about how environmental changes have affected living organisms.
Explanation:
i hope it's right..
Why is there a delay for the tides to react to the Moon's and Sun's gravitational effect?
The gravitational forces must overcome inertia and friction for the tides to take effect on water.
Gravity is one of the slower forces in nature having to travel great distances.
There is no delay because the effects of gravity is constantly acting on bodies of water.
Water is relatively immune to the force of gravity delaying the tidal process.
Answers
Answer: the moon causes the water tide
Explanation: The Moon exerts over twice the gravitational pull of the Sun on Earth's tides because of its proximity to Earth. -The lunar tidal bulges are about twice the size of the solar tidal bulges. -The Sun's contribution to the tides is less than that of the Moon.
Seed Germination Investigation
The students are to investigate the process of seed germination during their summer
vacation.
They will select different types of seeds, such as beans, peas, or sunflower seeds.
Encourage students to set up a germination experiment by placing the seeds in
different conditions, such as light vs. dark, or wet vs. dry. Moreover, they need to
pot the same seed in more than one pots.
They should observe and document the changes that occur over time, including the
emergence of roots and shoots.
Answers
Answer:
Okay...In this case I suggest you use corn seed or beans seed
Explanation:
It should take about 6 weeks to see the Germination, until then continue watering it and giving it sunlight
The seed germination investigation during the students' summer vacation involves selecting various seeds (e.g., beans, peas, sunflower) and setting up an experiment. They will place the seeds in different conditions, like light vs. dark or wet vs. dry, and pot the same seed in multiple pots. Throughout the investigation, the students are expected to carefully observe and document the changes that take place over time, including the growth of roots and shoots. This hands-on approach allows them to gain practical knowledge of seed germination and develop essential scientific skills in observation, data collection, and documentation.
Answer the following questions in complete sentences in the space provided:
1. Why does cell division take place in single-celled organisms?
2. What occurs in a cell when it is not undergoing cell division?
3. How do chromosomes change before cell division?
4. What is mitosis?
5. Why doesn’t mitosis occur in prokaryotes?
6. What would happen if DNA did not duplicate during interphase?
7. What is cytokinesis and when does it happen?
8. During what phase of mitosis do the chromosomes line up?
9. When do the chromosomes condense and become visible under a microscope? 10. What happens to the chromosomes during anaphase?
11. Sometimes a cell inaccurately duplicated its DNA, and the resulting cells are not identical. What effects might such a change have on the organism?
Answers
Answer:
1.All multicellular organisms use cell division for growth and the maintenance and repair of cells and tissues. Cell division is tightly regulated because the occasional failure of regulation can have life-threatening consequences. Single-celled organisms use cell division as their method of reproduction.
2.What happens to cells that "decide" not to divide? If the decision is to not divide, the cell goes into a quiescent, or nondividing state, called G0 (G zero).
3.Prophase is the first phase of mitosis. During this phase, the chromosomes inside the cell's nucleus condense and form tight structures. In fact, the chromosomes become so dense that they appear as curvy, dark lines when viewed under a microscope (Figure 1).
4.Mitosis is a process where a single cell divides into two identical daughter cells (cell division).
5.In bacterial cells, the genome consists of a single, circular DNA chromosome; therefore, the process of cell division is simplified. Mitosis is unnecessary because there is no nucleus or multiple chromosomes. This type of cell division is called binary fission.
6.If a cell has not properly copied its chromosomes or there is damage to the DNA, the CDK will not activate the S phase cyclin and the cell will not progress to the G2 phase. The cell will remain in S phase until the chromosomes are properly copied, or the cell will undergo programmed cell death.
7.Cytokinesisis the part of the cell division process during which the cytoplasm of a single eukaryotic cell divides into two daughter cells. Cytoplasmic division begins during or after the late stages of nuclear division in mitosis and meiosis.
8.Metaphase. Chromosomes line up at the metaphase plate, under tension from the mitotic spindle. The two sister chromatids of each chromosome are captured by microtubules from opposite spindle poles. In metaphase, the spindle has captured all the chromosomes and lined them up at the middle of the cell, ready to divide.
9.During prophase, the complex of DNA and proteins contained in the nucleus, known as chromatin, condenses. The chromatin coils and becomes increasingly compact, resulting in the formation of visible chromosomes.
11.When Replication Errors Become Mutations. Incorrectly paired nucleotides that still remain following mismatch repair become permanent mutations after the next cell division. This is because once such mistakes are established, the cell no longer recognizes them as errors.
Help if you can please?
Leachate is produced as:
A) Rainwater absorbs water-soluble compounds in layers of trash
B)Toxic waste is emptied into ponds and streams
C) Metal comes into contact with water
D) Plastic flows into ponds and streams
Answers
A.
The liquid formed when rain water filters through wastes placed in a landfill. When this liquid comes in contact with buried wastes, it leaches, or draws out, chemicals or constituents from those wastes
Rainwater absorbs water-soluble compounds in layers of trash
what cell stage is E in>
Answers
Three Anacharis plants were placed inside inverted test tubes filled with water. One test tube was exposed to low light, another to medium light while another was exposed to high light. The table provided shows the results of this experiment. Notice that more oxygen was produced by the Anacharis in high light.
Based on the information provided, what is the difference in volume (in mL) of oxygen produced between the low light and high light plants after 45 minutes? Record your answer below
Answer value
Answers
Answer:
Anacharis in High Light produces more mLof oxygen per min than Anacharis in Low Light Anacharis and in Medium Light.
Explanation:
The increased light intensity also increases the rate of photosynthetic activity. As photosynthesis occurs, the energy from sunlight, along with CO2 is converted to chemical energy in the form of glucose.
6CO2 + 6H20 + (energy) → C6H12O6 + 6O2
or Carbon dioxide + water = energy (glucose) + oxygen
Photosynthesizing cells in green plants produce oxygen as a waste product. As this process is rate-limited, certain factors may increase the reaction rate. These include:
carbon dioxide concentration
water availability
ambient temperature
light intensity;
Does animals take part in Water Cycle?
If your answer is YES then, explain how they take part in Water Cycle? If your answer is NO then, explain why NO.
Answers
Which structure does a virus have in common with a prokaryotic cell?
Answers
The structure which a virus have in common with a prokaryotic cell is: nucleic acid.
A prokaryote can be defined as a unicellular organism which is typically characterized by a cell that is devoid (lacking) of a well-defined cell organelle such as a nucleus.
Unlike eukaryote, a prokaryote doesn't have a well-defined, membrane-bound nucleus but has a nucleoid instead.
A nucleoid refers to an irregularly-shaped portion inside the cell of a prokaryote where all or most of its genetic materials are located such as nucleic acid.
Read more: https://brainly.com/question/24261254
A polar bear’s white fur is the result of a beneficial genetic mutation. Make a model
of a scenario where that mutation would be neutral or harmful.
Answers
Animal cells must work together in order to obtain nutrients and produce energy. Students were asked to create an explanation about the organelles involved in this process. Which student’s explanation is correct?
A. Student D is correct because they said the cell membrane allows the nutrients into the cell and the cytoplasm allows the nutrients to move across to the cell to be broken down by the mitochondria to create energy, and the lysosome gets rid of waste.
B. Student A is correct because they said the nucleus provides the organelles instructions to carry out their jobs, the lysosome breaks down the nutrients to create energy, and the mitochondria gets rid of waste.
C. Student B is correct because they said the nucleus provides the organelles instructions to carry out their jobs, the cell membrane stores the nutrients until the mitochondria breaks them down to create energy.
D. Student C is correct because they said the cell membrane allows the nutrients into the cell and the cytoplasm allows nutrients to move across to the cell to be stored in the lysosome until they need to be broken down by the mitochondria.
Answers
Step by step solution
If a 20 kg object is lifted to a height of 10m, how much potential energy will it have
Answers
Once the solid gains enough thermal energy, it can change to a _____ state.
A. liquid
B. gas
C. solid
D. frozen
PLEASE HELP
Answers
Answer:
A
Explanation:
Liquid
EASY; 7TH GRADE SCIENCE, OFFERING BRAINLIEST! please help me fast: Look at the image below and place the corresponding places.
Subject: Nitrogen cycle
Answers
Answer: Free nitrogen comes from bacteria breaking down the nitrogen compounds which causes it to be released in the air. Fix nitrogen is from soil, plants and animals consuming it which causes it to recycle, nitrogen is cycled through: plants, soil, animals, bacteria and water and the atmosphere. I hope this helped!
Explanation:
Bacteria breaking down nitrogen compounds releases free nitrogen.Explanation:The nitrogen cycle is a process in which nitrogen is recycled through different components of the environment. Bacteria play an important role in this cycle by breaking down nitrogen compounds found in plants, animals, and soil. When bacteria break down these compounds, they release free nitrogen into the environment. This free nitrogen can then be used by other organisms like plants to create proteins and other essential molecules. So, bacteria breaking down nitrogen compounds is an important step in the nitrogen cycle.
Hope this helps! Please mark me the brainliest!!! :D