Answer:
Ostriches, emus, cassowaries, rheas, and kiwis can't fly. Unlike most birds, their flat breastbones lack the keel that anchors the strong pectoral muscles required for flight. Their puny wings can't possibly lift their heavy bodies off the ground.
Explanation:
Answer:
cuz they're fat and their wings are small
Explanation:
their flat breastbones lack the keel that anchors the strong pectoral muscles required for flight
they lost the ability to fly through evolution because flying was no longer needed
water enters a plant cell through the what? no link please and hey des.
Answer:
water enter a plant cell through a tube called the xylem vessels
Scientists estimate the Earth has over 8 million different species of organisms classified over all of the kingdoms. Which of the following classification levels make up an organism's scientific name?
A.kingdom and phylum
B.genus and species
C.family and genus
D.class and order
The core of a virus may contain either DNA or RNA. To identify which nucleic acid is present, a biochemist
could chemically analyze the virus for the presence of
Answer:
Ribose
Explanation:
Hope this helps, have a nice day :)
The smallest unit of skeletal muscle tissue; examples includes myosin and actin. Intercalated Disce
Answer: The fundamental functional unit of muscle is called a sarcomere. One muscle may contain as many as 100,000 of the repeating sarcomere units. In the sarcomere, the myofilaments (thick filaments and thin filaments) are organized into parallel units.
HOPE THIS HELPS
Drag each label to the correct location on the image. Not all labels will be used.
Match the labels with the symbols on the weather map.
cold front
warm front
low pressure
strong winds,
cloudless
strong winds,
very cloudy
high pressure
occluded front
I need help now please!
About the question:
You will find the map in the attached files
Answer:
Cold front → blue line/trianglesWarm front → red line/semicircles Occluded front → lines with triangles and semicircles Low pressure → LHigh pressure → H Strong winds, cloudless → White key Strong winds, very cloudy → Black filled keyExplanation:
ISOBARS:
These are lines that join points of similar pressure and indicate atmospheric pressure for different regions. If lines are very close to each other, means that there will be bad weather. This is because, at a short distance, pressure values change, meaning atmospheric instability.
PRESSURE ZONES:
Isobars indicate the speed and direction of winds. Winds move from high atmospheric pressure areas to lower atmospheric pressure areas. When isobars are placed as small circles, there is a letter indicating the pressure center. It can be either high pressure symbolized with an H, or low pressure symbolized with an L.
High-pressure zones, H, represent anticyclones and are associated with good weather.Low-pressure zones, L, represent cyclones and are associated with bad weather. The closer the lines are to each other, the stronger will be the winds.FRONT TYPES:
There are different types of fronts, which can be represented with different symbols.
Cold front: In weather maps, these are represented with blue lines with triangles indicating the direction of the wind movements. Warm front: In weather maps, these are represented with red lines with semicircles indicating the direction of the wind movements. Occluded front: It can be warm or cold. These are represented with purple lines with triangles and semicircles indicating the direction of the wind movements.CLOUD COVER / WIND SPEED:
Indicated as a key figure on the map.
Circle: Represents the percentage of cloud cover. The clouder it is, the more black will be the circle. Stick: Represents the wind speed. The stick can have lines indicating the degree of speed → stick with no transversal line indicates 1-4 mph, one line means 5-8 mph, two lines 9-14 mph. And so on.PLEASE HELP ME ASAPPPPPPP
Answer:
hope i helped but i think its b or d
Explanation:
Answer:
it should be B
Explanation:
What is a “disturbance” in the field of ecology?
a. A living factor that affects organisms.
b. An event that makes a species extinct.
c. An event that changes a community.
Which treatment is best for a person with persistent diarrhoea?
Answer:
A i guess
Explanation:
are organisms that can be
used as warning signals for
changes in an ecosystem.
Answer:
Bioindicators
Explanation:
Answer:
Indicator species and/or keystone species
Explanation:
Indicator species are species (e.g., plants, animals, fungi) that can be utilized to determine changes in the environment. An indicator species can show the impact of pollution on an ecosystem. For example, mosses are indicator species that indicate the acidity in the soil. Moreover, keystone species are species that maintain the ecological balance in the ecosystem. When a keystone species is removed, the entire ecosystem is dramatically changed or may even cease to exist altogether. In consequence, keystone species can be used to define an entire ecosystem. For example, bees are a keynote species that contributes to balance the ecosystem by pollinating plants.
What is the importance of negative chemotaxis
Answer:
Chemotaxis is the directed migration of cells in response to concentration gradients of extracellular signals. ... In multicellular organisms, it ensures that the right cells get to the right place at the right time during development, and plays an essential role in processes such as wound healing and inflammation [2, 3].
PLEASE HELPP
A body is found lying on the ground, but lividity is present only in
the feet. It is deep purple in color. Investigators believe that the
victim was moved after death. Assuming environmental
conditions are average, which other conclusion might be drawn
from investigators working the scene?
M. The person has been dead less than 2 hours
N. The person has been dead at least 8 hours
0. The person has been dead less than 30 minutes
P. There is not enough information to determine
possible TOD
Answer:
I think the answer is that the person is dead less than two hours ago.
Part of ecosystem
Contains energy storage molecules?
(yes or no)
Energy storage molecules flowing in?
(yes or no)
Energy storage molecules flowing out?
(yes or no)
Producers
Consumers
Decomposers
Dead Matter
Abiotic Matter
(Answer the three questions for each of the topics)
Answer:
YES NO
Explanation:
Describe oligospermia
Explanation:
magsagot ka ng iyo tang ina mo bobo
Explain the difference between inter-cooperation and intra-cooperation between species.
Answer:
In evolution, co-operation is the process where groups of organisms work or act together for common or mutual benefits. It is commonly defined as any adaptation that has evolved, at least in part, to increase the reproductive success of the actor's social partners. For example, territorial choruses by male lions discourage intruders and are likely to benefit all contributors.
This process contrasts with intragroup competition where individuals work against each other for selfish reasons. Cooperation exists not only in humans but in other animals as well. The diversity of taxa that exhibits cooperation is quite large, ranging from zebra herds to pied babblers to African elephants. Many animal and plant species cooperate with both members of their own species and with members of other species.
Explanation:
I think?!
Which statements describe steps in photosynthesis? Select 3
AGlucose is broken down into carbon dioxide and water.
B
Energy is stored in the bonds of ATP.
C
Light energy is absorbed by chlorophyll.
D
Organic matter and oxygen combine to break molecules into smaller parts.
E
Energy is used to convert carbon dioxide and water into sugar.
F
Energy in the form of heat is used to absorb carbon dioxide.
G
Water is broken apart to produce oxygen.
Answer:
Light energy is absorbed by chlorophyll. C
Explanation:
Answer:
Light energy is absorbed by photosynthesis
Explanation:
Photosynthesis takes place in two stages: the light-dependent reactions and the Calvin cycle. In the light-dependent reactions, which take place at the thylakoid membrane, chlorophyll absorbs energy from sunlight and then converts it into chemical energy with the use of water.
What are the similarities and differences between predation and parasitism
plz answer
Answer: Predation Parasitism
Larger and stronger than the prey. Smaller than the host organism.
Metabolic Dependency
There is no such metabolic dependency between the predator and a prey. There is an intimate association involving metabolic dependency on the host.
Progression
Explanation:
A parasite obtains food and shelter from the host whereas a Predator will catch and kill its prey.
An ecosystem has been interrupted by an invasive species. A new grass eating lizard lives in the same ecosystem as a grass eating rabbit. Hawks eat both lizards and rabbits. What would happen to the grass and hawk populations immediately? Why?
There would be more hawks appearing because there is more food (both lizards and rabbits) and grass would lessen because there is another source feeding off of it.
I hope this helped ^^
Answer:
the grass population would decrease and hawk population would increase
Explanation:
The researcher hypothesizes that the FXR1 gene codes for a protein that binds to mRNAs that encode some of the proteins that damage arteries. Individuals with a particular mutation of the FXR1 gene tend to have high levels of these proteins. Based on this information, predict how the FXR1 protein most likely interacts with the mRNAs.
Answer:
it is expected that FXR1 interacts with mRNAs by inhibiting them before they are translated into the ribosomes, thereby preventing the production of proteins that cause damage in the arteries.
Explanation:
The translation is the cellular process in which a messenger RNA (mRNA) is used as template to synthesize a protein in the ribosomes. During translation, ribosomes catalyze the reaction that joins amino acids in order to create a polypeptide chain (i.e., an ordered sequence of amino acids). Diverse types of either synthetically or naturally occurring molecules can inhibit protein production at the level of translation (e.g., siRNAs, proteins, drugs, etc). In this case, it is expected that FXR1 inhibits the mRNAs that encode proteins capable of causing damage in the arteries, thereby a mutation that results in reduced and/or abolished FXR1 function (i.e., a loss of function mutation) will lead to a phenotype with high levels of these proteins.
Binding of FRX1 protein to mRNA will block the translation process of mRNA, thereby inhibiting protein synthesis.
What is the function of mRNA in protein synthesis?mRNA or messenger RNA is made from the transcription of DNA and the information stored in it is translated into amino acids by ribosomes in the process of protein synthesis.
Thus, mRNA serves as a template for protein synthesis.
How does the FRX1 protein interact with mRNA?The binding of the FRX1 protein will most likely block access to the codons present in the mRNA from being read by tRNA, thus inhibiting the synthesis of the proteins that damage arteries.
Therefore, binding of FRX1 protein to mRNA will block the translation process of mRNA, thereby inhibiting protein synthesis.
Learn more about mRNA and protein synthesis at: https://brainly.com/question/25797328
Which of the following is a accurate depiction of primary ecological succession?
Answer:
This question lacks options, however, primary succession will be explained for detailed comprehension.
Explanation:
Ecological succession is the gradual series of changes that occurs in an ecosystem, charging it's structure and composition over time. It is of two types namely; primary and secondary successions.
Primary succession is characterized by the "LACK OF NO SOIL". It begins on a barren piece of land e.g rocks, with no form of life previously known to colonize the area. In primary succession, the barren land is first colonized by organisms such as lichens etc., which are collectively regarded to as PIONEER SPECIES.
How does genotypic variation occur?
Answer:
Genotypic variation occurs when alleles are randomly sorted during sexual reproduction. ... Some types of organisms can increase genetic variation through reproduction. They are able to combine the genetic material of two parents, rather than copying the genetic material of a single parent.
Brainliest would be great!
1. List the levels of biological organization in order.
2. Name and recognize the general characteristics of the 6 Kingdoms discussed in class.
3. List and define the shared characteristics of life
Answer:tissue
Explanation:
Tissues are groups of cells that have a similar structure and act together to perform a specific functio”. ... Groups of tissues make up organs in the body such as the brain and heart.
PLEASE HELP!!!! WILL GIVE BRAINLIEST!!!
Eukaryotes evolved after prokaryotes and eukaryotes have a nucleus
that surrounds the DNA.
O True
O False
Answer:
True
Explanation:
Why does warm air rise? Why does cool air sink?
where on the food chains are crocodiles
Answer:
Fresh water crocodiles eat frogs so crocodiles are third order consumers.
Explanation:
Hope this helped Mark BRAINLIEST!!!?
Answer:
Years ago, the Crocodile order was one of the top animals on the food chain.
Hope this helps :)
A summary paragraph on a visit to vegetables garden in school
this will motivate you to love plant crops and also eat health food .....so that you can become healthy ....
this will encourage you to teatch others about the importance of vegetables especially those who are adult that dependent on medice
this will push to enged you to work on agriculture so that you can have your own besisness and also get profit
Select the correct answer.
Which of these is an example of structural protein in plants?
A. Chitin
B. Lignin
C. Keratin
Answers :
I believe the ans is (B) lignin.
Following are assertion and reasoning questions. Read the two statements labelled as A and R. Pick any of the
four options given below :
a. A and R are true and R is the correct explanation of A.
b. A and R are true but R is not the correct explanation of A.
c. A is true but R is false.
d. Both A and R are false.
1. A: Cell wall is present in plants.
R: Cell wall acts like a layer of protection to the plant cells as plants don't move.
2. A: Cell membrane is semipermeable.
R: It allows only certain molecules to pass through it.
3. A: Bacteria are prokaryotes.
R: A prokaryote is a typically unicellular organism that has a nuclear membrane-enclosed nucleus.
4. A:Nucleus is called the control center of the cell.
R: It is located in the center of the cell.
5. A: Plastids are resp sible for
R: They contain chlorophyll that traps sunlight.
Answer:
1,. d
2,.a
3,.b
4,.a
5,.b
PLZ HELP MEEEEEEEEEEE
Explanation:
To measure large distances in the universe astronomers have coined a technique called 'cosmic distance ladder'. It is basically a succession of different methods applied in accordance to distances between objects.
Answer:
i d k
Explanation:
jud]stt give me brainlest plxzzzzzz
Which of the following materials is a good choice for a greenhouse framework?
wood
steel
stone
aluminum
Answer:
aluminum
Explanation: