Answer:
I'm pretty sure this is true.
Explanation:
:)
How are transitional fossils evidence to support the process of natural selection?(1 point)
A) They show intermediate steps in the evolution process.
B) They show that most species have not changed over long periods of time.
C) They show plants and animals that once existed but do not exist now.
D) They show that every species of animals developed separately.
Answer:
1. Individuals with thicker fur had a survival advantage in the cold...
2. Random mating
3. The green skin color is being selected over blue skin color.
4. DNA.
5. They show intermediate steps in the evolution process.*
6. Different islands had very different food resources available...
7. Those who have traits that help them survive are able to reproduce...
8. It makes them unrecognizable to the immune system
9. The exposure of human populations to less UV light required...
10. The correlation between air pollution and white moth predation
11. It is a biological process that leads a population to have a widespread...
12-16 Essays
Explanation:
Good luck ♡
Transitional fossil evidence shows intermediate steps in the evolution process. So, the correct option is A.
What do you mean by Fossil?Fossils may be defined as the preserved remains, or traces of remains, of ancient organisms. They are dead and organic remains of past organisms.
Transitional fossil evidence would show intermediate forms of a species and they changed and accumulated adaptations at a slow pace. These are remnants of an organism that came in the version of the current species.
Therefore, Transitional fossil evidence shows intermediate steps in the evolution process.
To learn more about Transitional Fossil, refer to the link:
https://brainly.com/question/25223418
Two protein kinases, PK1 and PK2, work sequentially in an intracellular signaling pathway.You create cells that contain inactivating mutations in the genes that encode either PK1 or PK2 and find that these cells no longer respond to a particular extracellular signal.You also create cells containing a version of PK1 that is permanently active and find that the cells behave as though they are receiving the signal even when the signal is not present.When you introduce the permanently active version of PK1 into cells that have an inactivating mutation in PK2, you find that these cells also behave as though they are receiving the signal even when no signal is present.
A.From these results, does PK1 activate PK2, or does PK2 activate PK1? Explain your answer.
B.You now create a permanently active version of PK2 and find that cells containing this version behave as though they are receiving the signal even when the signal is not present.What do you predict will happen if you introduce the permanently active version of PK2 into cells that have an inactivating mutation in PK1?
Answer:
a. PK2 activates PK1
b. no response would be produced
Explanation:
Kinases are enzymes known to phosphorylate different substrates, thereby activating/inactivating them. In this case, a mutation that produces a constitutively (permanently) active PK1 kinase is itself able to continue the signaling pathway, independently of whether or not PK2 is present. This constitutive mutation shows that PK1 is recruited to continue signaling events within the cell and, therefore, PK1 activation is downstream in the signaling pathway. Conversely, cells containing active PK2 and inactive PK1 would be unable to continue the signaling pathway since PK2 activation is upstream of the induction of PK1, and thereby these cells cannot respond to the signal (PK2 activation).
what two gases easily diffuse through the phospholipid bilayer
Answer:
Consider substances that can easily diffuse through the lipid bilayer of the cell membrane, such as the gases oxygen (O2) and CO2. O2 generally diffuses into cells because it is more concentrated outside of them, and CO2 typically diffuses out of cells because it is more concentrated inside of them.
when can experimental growth happen
Answer:
Exponential growth may occur in environments where there are few individuals and plentiful resources, but when the number of individuals becomes large enough, resources will be depleted, slowing the growth rate.
Exponential growth may occur in environments where there are few individuals and plentiful resources, but when the number of individuals becomes large enough, resources will be depleted, slowing the growth rate
#SpreadTheLove
Base your answers to the following question on the structures represented in the diagram.
Review Packet- Modern Genetics Name___________________________ Page 1
What is the relationship between these three structures?
Group of answer choices
Protein is composed of DNA that is stored in the cell
The cell is composed only of DNA and protein
DNA is made up of proteins that are synthesized in the cell
DNA controls the production of protein in the cell
(b) Using the template of the phylogenetic tree, circle the lineages that share node
Complete question:
(b) Using the template of the phylogenetic tree, circle the lineages that share node A. You will find the tree in the attached files.
Answer:
The Lineages that share node A are
Chinese river dolphinAmazon river dolphinLa Plata river dolphinDolphinsNarwhalPorpoisesExplanation:
The phylogenetic tree is composed of,
Lineages → These are the taxonomic groups of interest placed in the extremes of the lines called branches. Nodes → These are the ramification points, which are also known as divergence points. They represent the location of the most recent common ancestor. Root → This is the older common ancestor that all lineages share. The first one in the tree.- Two or more lineages are more related to each other if they share a recent common ancestor. This means that they all diverge from the same node.
- Two or more lineages are less related to each other if they lack a recent common ancestor. This is, the node from which these lineages diverge is placed far away in the tree.
There are also different phylogenetic relationships between lineages.
Apomorphies → Occur when the involved lineages share a trait that they inherited from their most recent common ancestor. This trait evolved for the first time in this ancestor. → This relationship is a homology.Plesiomorphies → occur when the involved lineages share a trait inherited from a common ancestor, but that is older concerning the present traits exhibited by other descendants of the same common ancestor. → This relationship is a homology.Homoplasy → Lineages share a trait that evolved independently in each group. → This relationship is an analogy.Firstly the question is incomplete the image is not attached with it which shows the phylogenetic tree.
The Lineages that percentage node A are
Chinese river dolphin river dolphinLa Plata river dolphinDolphinsNarwhalPorpoisesThe phylogenetic tree consists of:
Lineages → These are the taxonomic companies of hobby located withinside the extremes of the traces referred to as branches.Nodes → These are the ramification points, that are additionally called divergence points. They constitute the area of the maximum latest not unusual place ancestor.Root → This is the older not unusual place ancestor that every one lineages percentage. The first one withinside the tree.- Two or extralineages are extra associated with every difference in the event that the percentage a latest not unusual place ancestor. In this manner, all of them diverge from the equal node.Two or extra lineages are much less associated with every difference in the event that they lack a latest not unusual place, ancestor. This is, the node from which those lineages diverge is located a long way away withinside the tree.
There also are one-of-a-kind phylogenetic relationships among lineages.
• Apomorphies → Occur while the worried lineages percentage a trait that they inherited from their maximum latest not unusual place ancestor. This trait developed for the primary time on this ancestor. → This dating is a homology.
• Plesiomorphies o( while the worried lineages percentage a trait inherited from a not unusual place ancestor, however, this is older regarding the prevailing developments exhibited via way of means of different descendants of the equal not unusual place ancestor. This dating is a homology.
• Homoplasy → Lineages percentage is a trait that developed independently in every group. → This dating is an analogy.
What is the phylogenetic tree?
The phylogenetic tree is the branching diagram showing the evolutionary relationships among various biological species.
Thus it is clear from the above answer.
To know more about the phylogenetic tree refer to the link :
https://brainly.com/question/2555632
When can an acquired mutation be passed from parent to offspring
Create some GREAT SCIENTIFIC game of hide and seek to play in class.
Answer:
you can place scientific terms around the classroom and the kids must work in groups to find the cards. Then you let the kids read the terms at the end.
Explanation:
The spinal cord is automatically arranged with
cervical region
spinal nerves
central canal
Which of the following statements about diffusion is FALSE?
Question 39 options:
smaller surface area of the cell membrane increases the diffusion rate
small molecules travel much faster than larger molecules
a higher concentration gradient increase the diffusion rate
higher temperatures allow for molecules to move quickly across the cell membrane
Answer:
smaller surface area of the cell membrane increases the diffusion rate
Explanation:
Diffusion is the process by which molecules move from a region of high concentration to a region of low concentration until there is an even distribution. The rate at which diffusion occurs is dependent on certain factors as follows:
- Temperature: An increase in temperature increases the rate of diffusion because there is an increase in the kinetic energy of the molecules in response to temperature.
- Surface area of the cell: A cell with large surface area undergoes diffusion at a higher rate than a cell with small surface area.
- Concentration gradient: The difference in concentration of the molecule on each side of the membrane is the CONCENTRATION GRADIENT, which when increased also increases the rate of diffusion.
- Size of molecules: small molecules tend to travel faster than larger ones, hence, they diffuse faster.
1. Imagine you played the game, and the results are as follows. Examine the tables below and questions (a) and (b)
Sample Data for Stable Food Scenario for EAST SIDE (Wet).
Season Large (AA) Medium (Aa) Small (aa)
1 2 2 2
2 3 2 2
3 4 4 4
4 5 5 6
Sample Data for Stable Food Scenario for WEST SIDE (Dry).
Season Large (AA) Medium (Aa) Small (aa)
1 2 2 2
2 2 2 2
3 3 2 2
4 4 2 2
A) Describe what happens to the bird population for both the East and West sides of the Islands in terms of its composition of different size beaks when the food source is stable over several seasons.
B) Are the initial populations maintained, explain?
2. Imagine you played the game again, but under different conditions. Examine the tables below, and answers (a), (b), and (c).
Sample Data for Natural Selection Scenario for EAST SIDE (Wet).
Season Large (AA) Medium (Aa) Small (aa)
1 2 2 2
2 3 3 3
3 4 3 2
4 8 5 0
Sample Data for Natural Selection Scenario for WEST SIDE (Dry).
Season Large (AA) Medium (Aa) Small (aa)
1 2 2 2
2 2 2 2
3 2 2 2
4 2 0 3
A) What happened to the composition of the original population over these four seasons for the East and the West?
B) What factor(s) might have caused these changes?
C) How was natural selection acting on this population?
Answer:
The population is increase in the east due to good and wet environment.
Explanation:
The bird population of the East and west sides of the Islands is increases of different size beaks when the food source is stable over several seasons because the presence of food to all size of beaks leads to increase in their populations. The initial populations is increased in the east side as compared to west side may due to good environmental conditions. The population of east side increases as compared to west side due to good and favourable environmental condition of the east side of the island.
The __
__from farmland is often contaminated with pesticides, herbicides,
fertilizers, and oils used in farm equipment.
A. ammonia buildup
B. runoff
C. livestock
D. acid rain
Answer:
B. Runoff
Explanation:
help pleasee
Many plants produce seeds which have small hooks on them. These hooks will attach to animals as they
move past the plants. What process do these hooks help the plant with?
A. pollination
B. fertilization
C. germination
D. seed dispersal
Answer:
A. Pollination
Explanation:
Because the "Hook" is helping the "Seed" get to other places to grow.
Some cells release active signaling proteins when membrane-bound precursor proteins are cleaved by proteolytic enzymes. The signaling proteins can then bind to receptors on the surface of a target cell, thereby activating an intracellular signaling pathway and eliciting a response from the target cell. This mechanism of activating receptor-binding signaling proteins has been observed in a variety of organisms from bacteria to humans. Many of the enzymes responsible for proteolysis of membrane-bound precursor proteins have been isolated and characterized.
Required:
What questions would be most appropriate to investigate whether the proteolytic enzymes are evolutionarily conserved among species?
Answer:
Following questions would be most appropriate to investigate whether the proteolytic enzymes are evolutionarily conserved among species:
Are the genes encoding the proteolytic enzymes expressed in the same cell types in all species? Once the precursor proteins of different species are cleaved, do the active signaling proteins bind to the same receptors on different target cells? If a proteolytic enzyme from one species is incubated with a precursor protein from another species, does correct cleavage occur? Are the proteolytic enzymes synthesized in the rough endoplasmic reticulum of all species?
when a plant doesnt have enough water, it will wilt and____.
the amount of carbon dioxide will increase.
the amount of carbon dioxide will decrease.
the amount of oxygen will increase.
the rate of photosynthesis will increase.
Answer:
the rate of photosynthesis will increase
Explanation:
Darwin was influenced to propose evolution by natural selection based on changes that farmers are able to obtain by means of __________ selection.
By means of natural selection.
I think natural could be the word
can someone please help me with this!
Answer:
large teeth is dominant on small
Answer:
50%
Explanation:
It's a chart based thing but I don't have one, but it's for sure 50%
Body fat in humans includes both essential and storage body fat.
a. True
b. False
Answer:
true
Explanation:
Answer:
yes that claim is actually true. those are the main fats (correct me if im wrong there)
- 1:
Translate the following sequence into a short protein. Add hyphens between,
please.
2
3
5'- AUG GCA AAA GAG GAA CAU UAA - 3'
5
6
Second Letter
U
с
A
G
Phe
Tyr
Ser
UUU
UUUC
UUA
UUG
UCU
UCC
UCA
UCG
UAU
UAC
UAA
UAG
3
9
Leu
Stop
Stop
UGU
Cys U
UGC
с
UGA Stop A
UGG Trp G
CGU
CGC
Arg
CGA
G
His
Pro
CUU
C | CÁC
CUA
CUG
CCU
Leu CCC
CCA
CCG
CAU
CAC
CAA
CAG
Gin
12
1st
3rd
CGG
✓
letter
Asn
Ser
lle
AUU
A AUC
AUA
AUG
ACU
ACC
ACA
Thr
AAU
AAC
AAA
AAG
AGU
AGC
AGA
AGG
U letter
с
A
G
15
Lys
|
Arg
Met ACG
Asp
GUU
GGUC
GUA
GUG
Val
Ala
GCU
GCC
GCA
GCG
GAU
GAC
GAA
GAG
GGU
GGC
GGA
GGG
Gly
|
Duco
18
Glu
✓
http://biology.kenyon.edu/courses/biol114/Chap05/Chapter05.html
1
Answer:
lol
Explanation:
Human beings are at 98.6F, which is roughly 300K. What wavelengths do we emit the most?
Question 4 options:
Red
Blue
Infrared
Radio
Ultraviolet
Answer:
Infrared.
Explanation:
The Infrared wavelength emitted by humans the most because of the temperature of the body. Infrared is an electromagnetic radiation having a frequency lower than visible light. The wavelength of radiation emitted depends on the temperature of the objects. Different objects emit different radiation wavelength due to their internal body temperature. Such type of radiation is known as thermal radiation. Most of the radiation emitted by human body is the infrared, having the wavelength of 12 micron.
One of the biggest sources of greenhouse gases released into the
atmosphere is emissions from burning fossil fuels. How could carbon
sequestration help alleviate problems associated with burning fossil fuels?
A. It could make fossil fuels a clean-burning energy resource.
B. It could prevent carbon dioxide from being a greenhouse gas.
O C. It could prevent released carbon dioxide from entering the
atmosphere.
D. It could make fossil fuels a renewable energy resource.
Answer:
The correct answer is - B. It could prevent carbon dioxide from being a greenhouse gas.
Explanation:
Carbon sequestration is the process that involves capturing and removal of atmospheric carbon dioxide from the atmosphere and prevent it from changing climate by increasing global warming as carbon dioxide gas traps the heat.
It is helping in the removal of excess carbon dioxide from the atmosphere and prevents it from being a greenhouse gas and increase global warming. It could be geological or biological.
Answer: C- it could prevent released carbon dioxide from entering the atmosphere
Explanation: ap3x
DNA is normally found in the nucleus as
but condenses into
during cell division.
A. histones, chromosomes
B. chromosomes, chrothatin
C. chromatin, chromosomes
Answer:
The answer is chromatin and chromosomes.
What molecule is all of this based on?
Answer:
carbon
Life is based on carbon; organic chemistry studies compounds in which carbon is a central element. The properties of carbon make it the backbone of the organic molecules which form living matter. Carbon is a such a versatile element because it can form four covalent bonds.
Some students correctly made a life cycle model for two specific animals. One group has made a model showing three parts, and another group has made a model showing four parts. Which parts would the group modeling incomplete metamorphosis have in their model?
A. egg, larva, adult
B. egg, nymph, adult
C. egg, larva, pupa, adult
D. egg, pupa, nymph, adult
Which wire, when current flows through it, would be surrounded by the strongest magnetic field?
A thin copper colored bar.
A copper colored coil with 2 turns.
A copper colored coil with 5 turns.
A thick copper colored bar.
Mark this and return Save and Exit
Answer:
A copper with 5 turns
Explanation:
Answer:the other guy is right
Explanation:
describe the pathway of water molecules from the soil through a plant and into the atmosphere ?
sience plants absorb carbodieoxide the water molecules that is absorbed by the plant bond with carbondieoxide to form oxygen and release ìt into the atmosphere
RNA: CATTGGCTAACGTCGATAATCGTCGGTAC
9. Which amino acids would be found in the mutation protein?
Which amino acids would be found in the mutation protein
Answer:
Amino acid sequence: Valine- Threonine- Aspartic acid- Cysteine- Serine- Cysteine- Stop.
Explanation:
This question is describing the process of translation, which is the second stage of protein synthesis. Translation is the process whereby a mRNA template is used to produce amino acids, which forms a sequence that will eventually become protein.
The mRNA sequence is read in a group of three nucleotides called CODON. Each codon specifies a particular amino acid. According to this question, using the genetic code table, the given DNA sequence is as follows:
DNA: CAT- TGG- CTA- ACG- TCG- ATA- ATC- GTC- GGT- AC
RNA = GUA- ACC- GAU- UGC- AGC- UAU- UAG- CAG- CCA- UG
Amino acid sequence: Valine- Threonine- Aspartic acid- Cysteine- Serine- Cysteine- Stop.
Match each clade to the unique innovation(s) that characterize it.
Reptiles and Birds, Mammals
Ecdysozoa
Chordates
Eukaryotes
Opisthokonts
Deuterostomes
Match each of the options above to the items below.
NotochordNotochord
Endoskeleton
Nucleus + mitochondria
Single flagellum
Amniotic egg
Ecdysis
Answer:
The correct answer is -
Notochord= Chordates
Endoskeleton= Deuterostomes
Nucleus+mitochondria= Eukaryotes
Single flagellum= Opisthokonts
Amniotic egg= Reptiles, birds, and mammals
Ecdysus= Ecdysozoa
Explanation:
The notochord is a flexible rod-like structure that is present in all chordates in their embryological stage and gives its name Chordata. It gives support through the length of the body and present between the nerve cord and digestive tube.
All vertebrates especially deuterostomes have an endoskeleton made up of bones or cartilage.
Nucleus and mitochondria are two double-membrane structures present in all eukaryotic cells and organisms.
Opisthokonts have a characteristic feature to have flagellated cells. These organisms have a single posterior flagellum. Amniotic eggs are produced by birds and reptiles only.
Application of surface tension in respiratory system
Answer:
The force of surface tension in the lungs is so great that without something to reduce the surface tension, the airways would collapse after exhalation, making re-inflation during inhalation much more difficult and less effective. Collapse of the lungs is called alectasis.
Explanation:
write any two uses of Rocks and Minerals of each?
Answer:
The use of rocks and minerals includes building material, cosmetics, cars, roads, and appliances.
Explanation:
