Answer:
vertebrates have backbone and invertebrates don't have backbone
vertebrates eg; goat,fish,cow
invertebrates eg: jelly fish ,snail, earthworm
Answer:
Invertebrates are those that do not possess a vertebral column or backbone while Vertebrates are those where vertebral column or backbone is present.
Invertebrates are those that do not possess a vertebral column or backbone while Vertebrates are those where vertebral column or backbone is present.The main difference between vertebrates and invertebrates is that invertebrates, like insects and flatworms, do not have a backbone or a spinal column. Examples of vertebrates include humans, birds, and snakes.
Which of the following best represents the changes to the SARS-COV-2 Virus.
A. adaptation
B. evolution
C. population
D. natural selection
Answer:
B
Explanation:
Evaluation
A scientist uses radioactive nitrogen to label the nitrogenous bases of the DNA of a cell. Then the DNA is allowed to replicate, and the new strands take up non-radioactive bases. Do one, both, or neither of the daughter cells have radioactive DNA? Explain.
I think yes, because from what i knew. When the DNA replicate, it will be same as the original/mother DNA. so it will both have radioactive DNA.
Just think, if only one DNA have radioactive then it wont be dangerous, but it affect the replication DNA, then its different case and will be dangerous for the body. You must've heard that radioactive can be dangerous for the body.
Sorry if im wrong
Answer:
I would say one..
Explanation:
It says the new strands take u non-radioactive bases.. if he only used the radioactive to label one of them then I would say one..
In the US, 1 in 1700 Caucasian children will be born with the monogenic hereditary disorder Cystic Fibrosis (CF), a pathology that results in an accumulation of abnormally sticky and thick mucus affecting the lungs and digestive system. Consider a small isolated community in Appalachia where most of the population lives below the poverty level and where adults have a higher rate of CF that the national average since the people tend to marry neighbors. The general practitioner for the county receives a Bill and Melinda Gates Foundation Grant to ascertain how many children in the community inherited cystic fibrosis from their parents. Out of 172 children tested, she finds 38 have CF. Remember that Mendel believed in diagnostic ratios for understanding inheritance outcome although other factors can come into play like assortative mating.
Complete question:
In the US, 1 in 1700 Caucasian children will be born with the monogenic hereditary disorder Cystic Fibrosis (CF), a pathology that results in an accumulation of abnormally sticky and thick mucus affecting the lungs and digestive system. Consider a small isolated community in Appalachia where most of the population lives below the poverty level and where adults have a higher rate of CF that the national average since the people tend to marry neighbors. The general practitioner for the county receives a Bill and Melinda Gates Foundation Grant to ascertain how many children in the community inherited cystic fibrosis from their parents. Out of 172 children tested, she finds 38 have CF. Remember that Mendel believed in diagnostic ratios for understanding inheritance outcome although other factors can come into play like assortative mating.
Based on the testing outcome, give your opinion on whether you think Cystic Fibrosis is a dominant or recessive disorder.
A.Probably dominant.
B.Probably recessive.
C. Neither
D. Not enough information
Answer:
B. Probably recessive disorder
Explanation:
Due to technical problems, you will find the complete question, the answer, and the explanation in the attached file.
Why are normally unseen members of the food web, such as soil microorganisms, essential to the nitrogen cycle?
Answer: Why are normally unseen members of the food web, such as soil microorganisms, essential to the nitrogen cycle? ... Since not all organisms can utilize the nitrogen gas directly, these microorganisms convert nitrogen in different nitrogen compounds, such as ammonia, nitrites, and nitrates. In this article we explore how nitrogen is cycled and the important role of microbes in this cycle. ... Nitrogen is required by all living organisms for the synthesis of organic molecules such as amino acids, nucleic acids and proteins. The Earth's atmosphere contains almost 80% nitrogen gas
Bacteria play a central role:
Nitrogen-fixing bacteria, which convert atmospheric nitrogen to nitrates.
Bacteria of decay, which convert decaying nitrogen waste to ammonia.
Nitrifying bacteria, which convert ammonia to nitrates/nitrites.
Denitrifying bacteria, which convert nitrates to nitrogen gas.
Explanation:
Once homeostasis is reached, no changes or adjustments are needed because permanent balance has been reached
-true
-false
Answer:
True
Explanation:
How can the type of bedrock under soil affect the characteristics of the soil?
by absorbing water
by making the soil more fertile
by weathering and becoming new parent material
by providing surface area for nutrient accumulation
Answer:
the second one you had a good weekend
Click on all the types of reproductive isolating
mechanisms (RIMs). *
Answer: Behavioral isolation.
Mechanical isolation. ...
Temporal isolation
what is a national park
Answer:
a scenic or historically important area of countryside protected by the federal government for the enjoyment of the general public or the preservation of wildlife.
"commercial exploitation of natural resources in a national park is illegal"
Explanation:
brainliest plz
Answer:
an area of countryside, or occasionally sea or fresh water, protected by the state for the enjoyment of the general public or the preservation of wildlife.
Explanation:
please mark me as brainliest
What are the behavioural adaptions for a snake?
Answer:
Behavioural Adaptation: A Red Belly Black Snakes is able to find small positions to get away from predators, as they have adapted to hide in small cracks, holes and logs as this enables the snake to get away from predators.
Will give brainliest
Which best describes how limiting factors affect all the species in this ecosystem?
Answer:
Its a COYOTE
Explanation:
What is the answer The nucleus or large central vacuole contains
genetic material of a eukaryotic cell.
Which question cannot be tested with Scientific investigation?
Answer:
air
Explanation:
the smaller the value of n the lower the energy and the closer to the orbital is to the nucleus true or flase
Answer:
True
Explanation:
This is because when you move across the periodic table, the number of atoms increase and the number of energy decrease downward. N represent energy level . n1 is the closest in the nucleus and n7 is the farthest. The farther the n in the nucleus, the higher the energy in the orbital. The smaller the n, the lower the energy and closer to the orbital.
what is peace and conflict??
What does this quote mean to you?
Quote: “Everybody is a genius. But if you judge a fish by its ability to climb a tree, it will live its whole life believing that it is $tupid.”-Albert
Answer:
It basically means that everyone is a genius in their own way and everyone has their own skills. If you decide to judge someone on what they cannot do (eg. a fish climbing a tree) rather than what they can do, it's gonna make the person feel $tupid their entire life. Not everyone can do the same thing and not everyone has the same abilities. A fish may not be able to climb a tree, but it can swim well. Just like a bee wouldn't be able to swim, but it can fly.
Deadly gas. Carbon monoxide is a colorless, odorless gas that binds to hemoglobin at an oxygen-binding site. Indeed, it binds 200 times as tightly as oxygen, accounting for its toxic nature. Even if only one of the four oxygen-binding sites on hemoglobin is occupied by carbon monoxide and the remaining three are bound to oxygen, oxygen is not released. Explain.
Answer:
The binding of carbon monoxide (CO) with hemoglobin leads to an R state even in conditions that should produce the release of oxygen. In consequence, CO-hemoglobin binding shifts the oxygen dissociation curve to the left.
Explanation:
Hemoglobin is a globular protein containing four heme groups that can bind to one oxygen each. This protein (hemoglobin) has two conformational states: the T-state, also known as deoxyhemoglobin (a tense state, where lacks O species), and the R-state, also known as oxyhemoglobin (a relaxed, fully oxygenated state). When carbon monoxide binds to hemoglobin, the protein can not release oxygen, shifting the oxygen dissociation curve -which expresses the percentage of oxygen saturation against the partial pressure of oxygen- to the left. Therefore, under CO-hemoglobin binding, the oxygen level in the tissues is reduced.
100pts!!! PLEASE HELP quickly!!
1. For today’s weather, it’s up to you to decide where the fronts are located. Draw the fronts on the map. Explain your reasoning.
As per the weather map of north America the regions of high and low pressure are given along with the cloudiness and range of temperatures
The warm and fold fonts are affected by the cloud covers and hence affect the temperature of the region. The cold front will be along the borer of 40 and 50°. The northeastern region shows maximum cloud cover and a low pressure. As compared to the western and southern region have have high temperatures and experienced high pressure. The winds will below from the high pressure to low pressure and hence create instability cover the north eastern parts.Hence the fronts are located north east and central zone.
Learn more about the For today’s weather, it’s up to you to decide where.
brainly.com/question/10838574.
How “Competition in an ecosystem” is playing a role in life?
Potential energy is
a. Stored energy
b. Energy in motion
c. kinetic energy
d. moving energy
Check all that apply as characteristics of myelinated axons. Check All That Apply Myelinated axons transmit nerve impulses via continuous conduction.Myelinated axons transmit nerve impulses via continuous conduction. Myelinated axons transmit nerve impulses in the same manner as unmyelinated axons.Myelinated axons transmit nerve impulses in the same manner as unmyelinated axons. Myelinated axons utilize fewer voltage-gated channels than unmyelinated axons of the same length and diameter.Myelinated axons utilize fewer voltage-gated channels than unmyelinated axons of the same length and diameter. Myelinated axons are more energy efficient than unmyelinated axons.Myelinated axons are more energy efficient than unmyelinated axons. Myelinated axons would be unaffected by diseases that attack the CNS.
Answer:
Myelinated axons utilize fewer voltage-gated channels than unmyelinated axons of the same length and diameter.
Myelinated axons are more energy efficient than unmyelinated axons.
Explanation:
Neurons are cells that specialize in transmitting messages to each other using a type of electrical signal. These signals carry information from outside your body to the brain, while others are the instructions for the various organs, glands and muscles to carry out functions.
Neurons receive these signals from other neighboring neurons through their dendrites. The signal then travels to the soma of the neuron, which is the main body of the cell, and finally travels down the axon to the synapse (space between the end of a neuron and another cell). The axon is a neuronal extension through which the electrical signal travels, extending from the soma to other neurons.
There may be layers of myelin, which consist of a layer of fat, covering the axons and where they have the function of acting as insulators to help keep the electrical signal inside the cell, which makes it move faster increasing the speed of transmission of the nerve impulse.
1) Myelinated axons transmit nerve impulses via continuous conduction. FALSE. In the axon, nodes of Ranvier are found at regular intervals along the length of the axon in the myelin sheath that surrounds it. These are small spaces that expose the axon membrane to the extracellular fluid and serve to allow the nerve impulse to travel faster, in a jumping manner and with less chance of error.
2) Myelinated axons transmit nerve impulses in the same manner as unmyelinated axons. FALSE. In an unmyelinated axon, the movement of voltage across the membrane is due to ion flux that is limited by the time it takes for sodium ions to diffuse into the axon. Myelinated axons conduct faster because they are shorter than unmyelinated axons. In the latter, transmission is continuous but slower.
3) Myelinated axons utilize fewer voltage-gated channels than unmyelinated axons of the same length and diameter. TRUE. The action potential conduction jumps from node to node, thereby they need fewer voltage-gated channels. Unmyelinated axons need voltage-gated channels in along the entire axon.
4) Myelinated axons are more energy efficient than unmyelinated axons. TRUE. The rate at which sodium input through one node can depolarize the axon at the next node is related to the current and capacitance across the membrane. Myelinated axons have faster action potential conduction because it jumps from node to node, thereby they use less energy because they don't have to travel the entire length.
5) Myelinated axons would be unaffected by diseases that attack the CNS. FALSE. For example, Multiple sclerosis (MS) is a demyelinating disease of the CNS in which the immune system attacks the myelin sheath or the cells.
The correct statements are:
Myelinated axons transmit nerve impulses via continuous conduction.Myelinated axons utilize fewer voltage-gated channels than unmyelinated axons of the same length and diameter.Myelinated axons are more energy efficient than unmyelinated axons.Myelinated axons are nerve fibers that are protected by a covering called myelin. In both the central nervous system (CNS) and peripheral nervous system (PNS), oligodendrocytes and specialized cells known as Schwann cells work together to generate the myelin sheath. This sheath is composed of several layers of lipids, which are fatty substances that wrap around the axon in segments, leaving small spaces known as nodes of Ranvier.
Therefore, the correct options are A, C and D.
Learn more about Myelinated axons, here:
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Your question is incomplete, most probably the complete question is:
Check all that apply as characteristics of myelinated axons. Check All That Apply
Myelinated axons transmit nerve impulses via continuous conduction.Myelinated axons transmit nerve impulses in the same manner as unmyelinated axons.Myelinated axons utilize fewer voltage-gated channels than unmyelinated axons of the same length and diameter.Myelinated axons are more energy efficient than unmyelinated axons.Myelinated axons would be unaffected by diseases that attack the CNS.A variety of opium poppy (Papaver somniferum L.) having lacerated leaves was crossed with a variety that has normal leaves. All the F1 had lacerated leaves. Two F1 plants were interbred to produce the F2. Of the F2, 249 had lacerated leaves and 16 had normal leaves. Give genotypes for all the plants in the F1, and F2 generations. Explain how lacerate leaves are determined in the opium poppy. (Section 5.2)
Answer:
The correct answer is-
F1 - AaBb (lacerate)
F2 - A_B_; A_bb; and aaB_ (lacerate)
- aabb (normal)
2. Two genes, with a dominant allele at either or both loci.
Explanation:
The given information gives THE following data:
Dominant: Lancerate leaves - AABB
Recessive: normal leaves - aabb
F1 has - all Lacerated leaves - AaBb
F2 by selfing F1:
AB Ab aB ab
AB AABB AABb AaBB AaBb
Ab AABb AAbb AaBb Aabb
aB AaBB AaBb aaBB aaBb
ab AaBb Aabb aaBb aabb
Here, 15/16 = lacerate which is 0.94 which is equal to the value of lacerate given in the question - 249/265 = 0.94
And normal 1/16 = 0.062 is almost same as 16/265 = 0.060
Thus, the genotypes of -
F1 - AaBb (lacerate)
F2 - A_B_; A_bb; and aaB_ (lacerate)
- aabb (normal)
Which type of organism must be at the bottom of food chains because of its structures for obtaining food energy?
A
Insects
B
Mammals
C
Plants
D
Fungi
Which of the following factors would NOT cause a population decline?
a. disease
b. natural disasters
c. competition
d. predation
e. peace
Answer:
peace
Explanation:
All the other options are bad. Peace would bring unity.
Natural Disasters-can infect waters,kill peoplw,etc.
Competition-people killing each other or animals to gain something over their opponent
Diseases-kills people,brings anxiousness
Predation-Kills animals. No animals,bad environment
Answer:
peace is the factor that will not cause that
what is intrapersonal communication
During what phase of meiosis does non-sister chromatids align at the equator?
A force of 5 N is required to increase the speed of a box from a rate of 1.0 m/s to 3.0 m/s within 5 s along a level surface. What change would most likely require additional force to produce the same results?
(SC.6.P.13.3)
reduce the mass of the box
increase the mass of the box
make the surfaces of the box smooth
make the surface of the floor smooth
HELPPP
Answer:increase the mass of the box
Explanation:
Big brain
1. Tell what type of interaction is being performed by the following pairs of
organisms. (Commensalism, Mutualism, Competition, Parasitism and
Predation)
6. aphid and rose plant
9. butterflies and flowers
10. birds and worms
7. lion and buffalo
8. coral reefs and fishes
Answer:
6. Parasitism
9. mutualism
10. predation
7. predation
8. mutualism
Explanation:
Living organisms, in their natural habitat, forms certain relationships with one another. These relationships are as follows:
- Mutualism is the association of two organisms in which both organisms benefits from one another in the relationship. Example is butterfly and flower in this question, where the butterfly helps pollinate the flower while the plants provide food source for the butterfly. Another example is coral reefs and fishes where the fishes and coral depend on one another.
- Predation is the kind of relationship in which one living organism called PREDATOR kills and feeds on another called PREY. Examples are the relationship between birds and worms, lion and buffalo where the bird and lion are predators while worm and buffalo are preys.
- Parasitism is the relationship between two organisms in which one organism called PARASITE lives on and derive nourishments from another organism called HOST. In the example of aphid and rose plant where the aphid is the parasite and rose plant is the host.
The type of interaction that is being performed by the following pairs of
organisms include the following:
Aphid and rose plant - ParasitismButterflies and flowers - MutualismBirds and worms- PredationLion and buffalo - PredationCoral reefs and fishes - MutualismAphid and rose plant have a parasitic relationship due to the aphids taking
up vital nutrients from the rose plant thereby resulting in distorted growth.
Butterflies and flowers have a mutualistic relationship as the butterfly aids
pollination of the flowers and also derives food and juice in return.
Birds and worms have a predatory relationship as the birds eat worms for
food and survival.
Lion and buffalo have a predatory relationship as the Lions eat buffalos for
food and survival.
Coral reefs and fishes have a mutualistic relationship as the fishes aids
reproductive ability of the coral reefs while the fishes benefit food and habitat in return.
Read more about Species interaction here https://brainly.com/question/10438690
aid of diagram describe the biconversion of surfur cycles?
Answer:
The sulfur cycle describes the movement of sulfur through the geosphere and biosphere. Sulfur is released from rocks through weathering, and then assimilated by microbes and plants. It is then passed up the food chain and assimilated by plants and animals, and released when they decompose.
Ceratin bacteria convert nitrogen gas into ammonia through a process called
A denitrification
B ammonification
C nitrogen fixation
D decomposition
11. Does the rate of diffusion change over time? Why or why not?
Answer:
The rate changes over time because once the molecules reaches equilibrium diffusion slows down.
Explanation:
Hope this helps =)