archaea are more or less similar to eukaryotes than bacteria
Answer:
Although archaea superficially resemble bacteria in terms of size and cellular organization (members of both groups lack nuclei), they are surprisingly similar to eukaryotes at the molecular level. For instance, all archaea replicate their DNA and synthesize proteins using molecular machines like those of eukaryotes.
Which of the following is a function of the nucleus?
Answer:
Nucleus controls and regulates the activity of cell eg: growth, metabolism and carries the gene(structure that contain the heriditary information). nuclolie are small bodies often seen within the nucleus.
Explanation:
match the following
(i) Stem tuber (a) minerals
(ii) Conditioned Reflex (b) Blue green algae
(iii) Blood Circulation (c) potato
(iv) Pancreas (d) chlorosis
(v) Autotrophs (e) Pavlov's Experiment
(vi) Active transport (f) Insulin
(g) William Harvey
Answer:
Stem tuber ---- Potato
Conditioned reflex ---- Pavlov's experiment
Blood circulation ---- William harvey
Pancreas ---- Insulin
Autotrophs ------ Blue green algae
Active transport ---- Minerals
Note: Chlorosis has no matching item in the list. Explanation is given below.
Explanation:
Stem tubers are plants which store their food in their stems. Potatoes are stem tubers.
Conditioned reflex is a reflex is acquired gradually by training in association with specific repeated external stimuli. For example, the Russian psychologist Ivan Pavlov's performed experiments on conditioned reflex using a dog. He demonstrated that a dog will salivate on the sound of a bell even if there is no food given to it if the ringing of the bell preceded every feeding session of the dog.
William Harvey discovered the circulation of blood and the function of the heart .
The islets of Langerhans found in the Pancreas secretes the hormone, insulin.
Autotrophs are organisms which are able to manufacture their own food, Blue green algae are examples of autotrophs.
Active transport is transport which requires expenditure of energy and occurs against the concentration gradient of the substance being transported. Because the concentration of minerals in the soil are in very low concentration, active transport is used by the root hair cells carrier proteins to move mineral ions across the membrane into the cell against the concentration gradient. ATP hydrolysis provides the energy for this process.
Chlorosis is a disease which appears as the yellowing of leaves in plants and in human a green tinging of the skin which is caused by the deficiency of minerals especially iron and manganese.
HELP I'LL GIVE BRAINLIEST DUE BY 11:59!!!!!!!
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ACCESS 2021 AP BIOLOGY
Select the conditions caused by fungi.
rust
yellow mosaic
barley yellow dwarf
blight
Stewart’s wilt
holcus spot
stalk rot
which is an example of a changing biotic in an ecosystem
50 POINTS
How can the environment impact a particular population of a species?
Answer:
Certain species need different environments to live in and if its too cold for one species it can lead to death of the population of that species.
that is what I put
Explanation:
If a forest has many large trees with lots of leaves, what will most likely be found on the ground?
A. Very few small plants, because the trees block all the sunlight.
B. Lots of small plants, because the big trees provide more oxygen.
C. Very few small plants. because the trees use up all the oxygen.
D. Lots of small plants, because the trees provide enough water.
(I'm in 5th grade btw, and I have a big test coming up so this could really help)
Answer:
A.....
Explanation:
,.............
If a forest has many large trees with lots of leaves, the likely thing that could be found on the ground is very few small plants, because the trees block all the sunlight. Thus, the correct option for this question is A.
Why do plants that live on the forest floor have big leaves?The forest floor gets almost no light at all. Leaves in these environments have adapted to low light and lots of water. Large leaves are arranged horizontally to absorb the most light possible. This is because these plants have plenty of access to water, and they can keep large leaves alive.
The plants that live on the floor of the forest have bigger leaves so that they can absorb the little light that comes through rather the plants that live in hot sunny conditions don't need to store as much sunlight. Cacti are plants that live in extremely dry environments.
Therefore, if a forest has many large trees with lots of leaves, very few small plants would be found on the ground because all the trees block the sunlight. Thus, the correct option for this question is A.
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How can humans use mutations to produce traits we want?
Answer:
mutations can affect an organism by changing its physical characteristics (or phenotype) or it can impact the way dna codes the genetic information (genotype). when mutations occur they can cause termination (death) of an organism or they can be partially lethal.
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Question 7 brainliest involved
Answer:
Its B i think hope it helps
Explanation:
Within a population of rabbits, black fur (B) is dominant over white fur (b). A scientist observes 16% white rabbits on an island. The dominant allele frequency of this population is
Answer:
Explanation:
According to hardyweinberg principle
p+q= 1
P2+2pq+q2=1
given that
Black fur =B =p(dominant allele)
White fur =b =q (recessive allele)
q2=16%
16/100=0.16
q=√0.16
q=0.4
Since p+q=1
P=1-q
P=1-0.4
P=0.6
Therefore the allele frequency for dominant organism Black fur is 0.6
What is hemoglobin?
A. Lipid
b. Protein
c. carbohydrate
d. Nucleic Acid
Answer:
B. Protein
Explanation:
Main function is to transport oxygen from the lungs to tissues and to transport carbon dioxide from tissues to the lung.
A biology teacher asks students to give examples of genetic variations that support the idea that changes in a population’s environment affect genetic variation. Which is the least supportive example?
A. changes in genetics in human populations
B. antibiotic resistance in bacteria populations
C. pesticide resistance in garden insects
D. changes in the color of the peppered moth population in England
True or false: A cell's DNA is replicated during the M phase of the cell cycle.
What are two things that can make the pressure of a gas rise? (what are two variables you can change to increase the pressure) *
Answer:
Temperature, pressure, volume and more
Is dinosaurs dying considered a macroevoluation or a mikroevoluation?
Answer:
It would be macroevolution :)
Answer:
macroevoluation
Explanation:
eukaryotic life forms, the origin of humans, and the extinction of the dinosaurs which is considered macroevoluation.
Cells typically respond to DNA damage in three ways: by ceasing to grow and divide until the damage is repaired, by permanently ceasing to grow and divide, or by dying. In 2010 a group of scientists reported that a certain kind of immune reaction can cause DNA damage that leads to a fourth response. DNA damage can turn off genes involved in cell-signaling pathways. Turning off these genes can cause less-mature cells to divide too rapidly, often leading to the development of- a. tumors c. hemophilia b. allergies d. cardiovascular disease
It can lead to the development of A. Tumors
Turning off these genes can cause less-mature cells to divide too rapidly, often leading to the development of (A) tumors.
What is the most common cause of tumor?
When cells reach their end of life cycle or get damaged, they pass away and are replaced by new ones. This normally well-regulated process can, on occasion, become disorganized, allowing aberrant or damaged cells to proliferate and reproduce when they should not. These cells have the potential to develop tumors, which are mass accumulations of tissue.
There are primarily three different kinds of tumors:
Benign: These tumors do not have any cancer-causing properties. They do not penetrate the tissue that is close by and they do not spread to other areas of the body.Tumors that are premalignant have cells that are not currently cancerous but have the capability of developing into cancerous cells in the future.Malignant: Malignant tumors are malignant.Learn more about tumors, here:
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What technologies could the state use to lessen its flood risk?
Explanation:
they include floodwalls/seawalls, floodgates,levees, and evacuation routes. Nonstructural measures reduce damage by removing people and property out of risk areas. They include elevated structures, property buyout, permanent relocation, zoning, subdivision, and building
Answer:
My state could help prepare for future floods by using weather-detection technologies and building canals to divert overflowing rivers.
Explanation:
1 pts
Cells must function properly for the body to thrive and survive. The structure below is made up of carbon
based molecules that have a role in the function of the structure. Which statement best describes an important
function of the cell structure shown in the model below?
Answer:
Can you give me the answer choices or the photo to work off of?
Explanation:
what are atoms and what is the connection between atoms, elements and matter?
Answer:
Atoms are the smallest indivisible part of an element that can neither be created nor destroyed in a chemical reaction.
Answer:
an atom the part of an element. a particular element is composed of only one type of atom. Atoms are further composed of subatomic particles called electrons, protons, and neutrons. elements can combine with each other to form molecules via chemical.
Explanation:
What is the diploid phase?
Answer:
In the sporophyte phase a diploid (having two sets of chromosomes) plant body grows and eventually produces spores through meiosis. These spores divide mitotically to produce haploid (having a single set of chromosomes) gamete-producing bodies called gametophytes.
Explanation:
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If a man with type AB blood and a woman with type O blood were to have children, what is the probability that a child would have the blood type O? *
100%
50%
25%
0%
which one^
Answer:
0%
Explanation:
Let's use a Punnett square to solve this problem.
A B
O AO BO
O AO BO
The Punnett square shows that 50% of their children will have the AO genotype and 50% will have the BO genotype. Neither of these genotypes give the child type O blood, so it is impossible for the child to have type O blood. The child would need two O alleles.
BLOOD TYPE GENETICS!! HELP!!
Answer:
Darn Bro... No Clue
It is often difficult to save individual species because ( multiple choice answer)
Answer: This is because small populations are more prone to disease, inbreeding may result in gentrified disorders, and captive species may not reproduce in the wild.
Hope this helps :)
Answer:
Small populations are more prone to disease, inbreeding may result in gentrified disorders, captive species may not reproduce in the wild
Explanation:
A population of lizards carry a gene for scale color in which the dominant allele produces green scales while the recessive allele codes for brown scales. In the first generation, you determine that 75% of the population is green and 25% of the population is brown. In the second generation, you determine that 50% of the population is green and 50% of the population is brown. Finally, in the third generation, you determine that 25% of the population is green and 75% of the population is brown. Which of the following correctly explains this change in the genotype frequencies?(1 point)
The lizards mate randomly with each other.
The brown color is an adaptation that is being selected by the environment.
The lizards remain isolated from other lizards, only mating with lizards in their own population.
The DNA of these lizards carries no mutations from one generation to the next.
Answer:
1) There are no mutations in the DNA of the population.
2) The brown color is an adaptation that is being selected by the environment.
3) The number of individuals displaying each phenotype in both the current generation and the offspring.
4)The recessive phenotype in this population may serve as an adaptation in this environment.
5) A population of flies that maintains a population size of at least 1 million individuals.
Explanation:
just took the test (connexus student)
Correct answers are :
No mutations in the DNA.The brown color is an adaptation.individuals displaying current generation, offspring.Rcessive phenotype adaptation.Flies population has a size of at least 1 mn.What is a genotype?A genotype is a set of genetic material that characterize an organism and is also used or refer to the allies or the variant of that individual that carries genetic material.
The population of lizards has a gene for scale color that is a domain allele. The brown color is due to the adaptation of the species.
Find out more information about the population.
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What is Science??
Answer:
please mark me as brainliest
Answer: Good Morning
Science is the intellectual and practical activity encompassing the systematic study of the structure and behaviour of the physical and natural world through observation and experiment.The three main types of science are: physical science, Earth science, and life science. Physical science is the study of inanimate natural objects and the laws that govern them. It includes physics, chemistry and astronomy
Explanation:
Hope it helps! Have a good day
Which of these statements about budding is FALSE?
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A: The new cell is the same size as the parent cell when it breaks away.
B: Yeast is an example of an organism that reproduces through budding.
C: The nucleus of the parent cell divides, providing an identical nucleus to the new cell.
D: It is a form of asexual reproduction.
Answer:
A is false
Explanation:
If purple flowers are dominant to white flowers, and a heterozygous purple flower is crossed with a white flower, what is the probability that an offspring will be white? (Hint: draw a Punnett Square). Rr x rr *
50%
25%
100%
75%
which one^
when the phenotype is2:2 the 50%is white
The correct answer to the given quested about Heterozygous genotype is 50 percent.
How to solve this question?Considering a hybrid of two plants that are heterozygous for purple blooms as the are dominant to white flowers.Purple Heterozygote (Pp) X Purple Heterozygote (Pp)Each plant will generate two different types of gametes, with 50% of them having the (P) allele and 50% bearing the (p) allele.Check the alleles and demonstrate the genetic cross when the purple flower is crossed with the full one.Thus the conclusion is that there is a chance that when two plants with heterozygous purple flowers are crossed, 50% of the offsprings will have purple flowers and 50% will have white flowers.
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What is photosynthesis, and what is it's main goal?
Answer: Photosynthesis is the process of when a plant makes it's own food, and the main goal is to convert solar energy to chemical energy.
Explanation: Plants use photosynthesis by taking the sunlight, to synthesize foods from carbon dioxide and water. Since plants can't move and consume other organisms, they use photosynthesis. The formula is: [tex]6CO_2+6H_2O=C_6H_1_2O_6+6O_2[/tex].
Like I said, the main goal is converting solar energy to chemical energy then store the chemical energy for future use, for example it can be used for Chemical batteries, Natural gas, Heat, Food, etc.
What is the difference between mechanical energy and electrical energy?
Answer:
Kinetic Energy can be defined as the energy possessed by the object by the virtue of its motion. The sum of these two energies is often called Mechanical Energy of the System. Electric Energy is also a form of these 2 energies: Electric potential energy stored in a charged particle in an electric field.
Explanation:
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