Answer: lymphatic vessels
Explanation:
Like veins, the lymphatic vessels, which are known as lymphangions, have one-way valves to prevent any backward flow
CAN SOMEONE HELP ME WITH THE PICTURE ABOVE
thank you
Answer:
B.
Explanation:
2% better off
If bacteria do not contain a nucleus will bacteria still have DNA?
Of course not the DNA is found in two basic forms: a chromosomal loop and ring-like plasmids. The chromosomal loop is literally a looping string of DNA. Since there is no true nucleus in a prokaryotic cell, the DNA is suspended in cytoplasm, or the fluid filling the cell.
Is the cladogram pictured here correct? Does it accurately represent the cladistic relationships between these species based on their derived characteristics? Why or why not?
Answer:
The cladogram is correct. The further explanation is given below.
Explanation:
As with most other species excluding lamprey, paired arms and legs are established. In any organism except lamprey as well as tuna, paired legs become available. Throughout all animals, except lampreys, tuna, certain bullfrogs, the amniotic membrane seems to be preserved. In kangaroos, rhesus monkeys including people, mammary glands were only ever available. The placenta has only been found throughout rhesus monkeys and also in humans. Foramen magnum forward will be exclusively found in humans.how do you find per capita growth rate over a month?
All you have to do is take the CGR (capita growth rate) percentage you just found and divide it by the number of years, months, etc. The complete formula for annual per capita growth rate is: ((G / N) * 100) / t, where t is the number of years.
What are the functions of centrioles
Answer:
Centriol play a major role in cell division (mitosis)
Explanation:
Help coordinate cell division (only in animal cells)
why is it important to understand plant physiology in crop/plant production and productivity?in your discussion make sure that you mention related fields/areas in agriculture which specifically require a background of plant physiology
Knowledge of Seed physiology helps in understanding of different physiological and morphological changes that occur during germination. By knowing the different inputs requirement of plants (water, nutrients, sunlight) we can easily manage the plant population to get highest yield.
Which of the following is not a process that occurs during cytokinesis of an animal cell?
(Please help I will mark brainliest)
A. Cytoplasm is divided
B. Nucleus reappears
C. Chromosomes line up at the metaphase plate
D. Nuclear envelope surrounds chromosomes
Chromosomes line up at the metaphase plate is the process that is not happen during cytokinesis.
What is cytokinesis?Cytokinesis is the process of cell division in which the cytoplasm of a parental cell divides into two daughter cells. It occurs in both mitosis and meiosis type of cell division so we can conclude that Chromosomes line up at the metaphase plate is the process that is not happen during cytokinesis.
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Chromosomes lining up at the metaphase plate is not a process that occurs during the cytokinesis of an animal cell (Option C). It is part of mitosis.
What is cytokinesis?Cytokinesis is the cellular process by which the cellular cytoplasm separates to form two different daughter cells.
Chromosomes line up at the metaphase plate during the process of cell division (metaphase step of mitosis).
Mitosis can be sequentially divided into prophase, metaphase, anaphase, and telophase.
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Does a parrot eat a grasshopper?
The majority of pesticides do not have a residual effect (i.e., not persistent; lose chemical activity) in the soil.
a) True
b) False
Answer:
B- False
Explanation:
Pesticides can contaminate soil, water, turf, and other vegetation. In addition to killing insects or weeds, pesticides can be toxic to a host of other organisms including birds, fish, beneficial insects, and non-target plants. Soil can be degraded and the community of organisms living in the soil can be damaged by the misuse or over use of pesticides. Some pesticides are more toxic to soil organisms than others.
Hope this helps!
Select the correct answer.
Jayden is taking a test. He has to write why scientists support the theory that life began near hydrothermal vents in the ocean. Which point should he include in his answer?
A.
Hydrothermal vents were closest to ocean surface, and therefore could receive oxygen.
B.
Oceans were dry and only had water near the hydrothermal vents in the earlier ages.
C.
Even today, all life forms are first born near hydrothermal vents and they later migrate to land.
D.
Fossils of archeabacteria, which are early common ancestors, were found near hydrothermal vents.
Answer:
The answer is; D
Archaebacteria are early life forms on earth. They utilized the process of chemosynthesis to make organic molecules from inorganic molecules and for energy. The word archae means ‘ancient’ life forms. These single-celled organisms evolved around sulfur-rich environments of the hydrothermal vents.
Answer:
D
Explanation:
How do you know if something is alive? Describe some of the characteristics of living things.
Answer:
We can determine if something is a living thing by seeing if they show some of the living characteristics. These characteristics include:
Reproduction - to make more of the same organism
Sensitivity - the ability to detect and react to stimuli
Nutrition - eat and digest food.
Movement - the ability to change its position or location
Respire - to breathe / gas exchange
Excretion - get rid of toxic / materials in excess
All living things show the characteristics above.
For example, we can be sure that robots are not living things because they cannot excrete, respire, or reproduce even if they can move and sense stimuli from outside. We can also be sure that plants are living because they show all characteristics, even for movement, we don't obviously see that, but for example, they may grow towards a light source.
Answer:
To be alive organisms have to include all of the following:
- Made up of a cell or cells
- Has DNA
- Can reproduce
- Responds to the environment
- Grows and develops
- Exchanges energy
- Evolves
Explanation:
Prokaryotic and Eukaryotic cells are both alive because they contain all of the seven necessary characteristics listed above. Viruses are not alive because they do not contain all of the seven characteristics listed above.
What is a fourth order consumer
Which of the following is a slow process that changes earths surface (flooding), (earthquake), (wind erosion), (volcanic erosion)
Answer:
i'm pretty sure it's earthquake.
Explanation:
Answer:
flooding because of water erosion.
Hope this helps!!!What organelle is attached to the Rough ER
Answer:
Ribosomes
Explanation:
Answer:
The ribosomes.
Explanation:
Which activities would best target a key muscle in her cool down routine?
Answer:
The answer is "Calf stretch".
Explanation:
hope this helps!
Lactic acid and alcohol fermentation occur when _______?
Question 4 options:
cell death occurs
when no oxygen is present
a cell is subjected to too much oxygen
when the amount of glucose is not sufficient
Answer:
a cell is subjected to too much oxygen
Which statement is false?
O Polypeptides are made of amino acids.
O Lipids are made of fatty acids.
O Simple sugars are made of polysaccharides.
O Nucleic acids are made of nucleotides.
Do neritic nones have sudden changes
Answer:
They face pounding waves as well as sudden changes in water levels and temperature that occur with high and low tides. Why is the neritic zone particularly in living things? It is rich in organisms because sunlight passes through its shallow water enabling photosynthesis to occur.
Explanation:
what do plant cells do?
Answer:
Create glucose
Explanation:
they go through photosynthesis and create glucose
Which structures are highlighted? Which structures are highlighted? goblet cells submucosa chondrocytes in lacunae seromucous glands
The image is not given in the question, so the appropriate image is attached below:
Answer:
goblet cells
Explanation:
Goblet cells are the mucin-secreting glands found within epithelia. Their shape and size look like a goblet, hence named goblet cells, and contain narrow bases and wide apex.
The structure highlighted in goblet cells scattered within epithelia. Goblet cells function for producing mucin, create a protective mucus layer and immunoregulation.
Hence, the correct answer is "goblet cells".
Lateralization refers to the
a. number of neurons produced during prenatal development.
b. organizational structure of the peripheral nervous system.
c. specialization of the two hemispheres of the cerebral cortex.
d. plasticity of the spinal cord.
ASAP Which level of organization is directly below organ system
A:organelle
B:Cell
C:Tissue
D:organ
Answer:
Here since the person above wants to be 3 years old, lemme try to help you, the answer will be D. Organ
Explanation:
Thought and memory pass across synapses in the brain. What are the neural circuits transmitted by new or reactivated pathways called
Answer:
Neuronal networks
Explanation:
Neuronal networks are made of neurones that give the ability of understanding relationship in a set of data. It functions in similar way to brain function.
Neuronal networks are able to adapt to changes in input and give appropriate output.
A simple example of neuronal network is a system made up of neurones at input layer, hidden layer, and output layer.
Self learning occurs in this network as it can use past experience to better respond to a given stimulus
Which is one of the purposes that technology serves in science?
O It illustrates complex systems.
It helps create new science problems.
It assists in data collection.
O It simplifies representations of real objects.
Answer:
Explanation:
It illustrates complex systems
Answer:
C) It assists in data collection.
Explanation:
trust me bro
How do convection currents cause the motion of tectonic plates??
Answer:
These tectonic plates rest upon the convecting mantle, which causes them to move. The movements of these plates can account for noticeable geologic events such as earthquakes, volcanic eruptions, and more subtle yet sublime events, like the building of mountains.
Explanation:
What caused Antarctica’s climate to change from a more temperate climate to its current climate?
A)
isolation from the other continents
B)
El Niño
C)
being surrounded by ocean
D)
volcanic eruptions
E)
all of the above
Answer:
E
Explanation:
Answer:
E) All of the above
Explanation:
Got it right on the test
If a cell does not go through the Sphase of the cell cycle before mitosis, what might be wrong with the daughter cells?
Answer:
Synthesis is the phase of the cell cycle in which DNA is replicated, occurring between G1 phase and G2 phase. Since accurate duplication of the genome is critical to successful cell division, the processes that occur during S-phase are tightly regulated and widely conserved.
Explanation:
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.
Each step in the cell division is controlled and regulated by proteins like Cyclins. If a cell does not go through the S phase, it can not go to the G2 phase until the replication process is completed, or until it's programmed cell death.
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As the cell passes through different steps of cell division, there are auto control mechanisms to ensure that the step was correctly performed and the cell is ready to go to the next step.
Many regulator molecules act during the different stages of the mitosis process to make it possible.
There are too many factors interacting, activating, and deactivating to pass from one stage to another.
Cyclins are proteins that regulate the whole cell cycle. There are different types of cycling, each of them acting on a different stage.
When the cell is going through one of the stages, the only cyclin in high levels is the one that is regulating that cycle.
Once that stage is over, that cyclin concentration decreases, and the following one increases.
But if any step was not correctly performed, the cell can not pass to the following one.
During the S stage of the interphase occurs the DNI replication process.
At this point, also occurs the synthesis of histones and other associated proteins.
This is the only stage where the DNI molecule is replicated.
S phase cyclins are in charge of regulating the stage of DNA replication.
If the cell does not go through the S phase, the cyclins of this stage are not activated. And if S phase cyclins are not active, the cell can not go to the G2 phase.
The cell remains in the S phase until the DNA replication process is correctly done. And if it does not occur, the cell suffer programmed cell death.
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Related link: https://brainly.com/question/21126407
which of these organisms are most likely to occupy similar niches in different ecosystem
A. Oak tree and maple tree
B. Kangaroo rat and kangaroo
C. Earthworm and freshwater eel
D. Koala and black bear
Oak tree and maple tree are most likely to occupy similar niches in different ecosystem.
What is an ecosystem?An ecosystem is defined as a system which comprises of all living organisms and physical components with which the living beings interact. The abiotic and biotic components are linked to each other through nutrient cycles and flow of energy.
Energy enters the system through the process of photosynthesis .Animals play an important role in transfer of energy as they feed on each other for requirement of energy.As a result of this transfer of matter and energy takes place through the system .Living organisms also influence the quantity of biomass present.By decomposition of dead plants and animals by microbes nutrients are released back in to the soil.
Learn more about ecosystem,here:
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When atoms combine, they may gain, lose, or share:
O electrons.
protons.
O neutrons.
O nuclei.
Answer:
electrons
Explanation:
Which statement accurately describes the energy needs for photosynthesis and cellular respiration?
A. Solar energy is needed for cellular respiration but not for photosynthesis.
B. Chemical energy in the form of glucose is needed for both cellular respiration and photosynthesis.
C. Chemical energy in the form of glucose is needed for photosynthesis, and solar energy is needed for cellular respiration.
D. Solar energy is needed for photosynthesis, and chemical energy in the form of glucose is needed for cellular respiration.
Answer:
D. Solar energy is needed for photosynthesis, and chemical energy in the form of glucose is needed for cellular respiration.
Explanation: