Answer:
their secretions reach the blood directly without ducts
How can scientific conclusions be reliable, but also able to be changed with the introduction of new evidence
Answer:
scientific conclusions are reliable as they are helpful for many things however it is true that after the evolution of new ideas the old theory have some changes or may change fully or may be proved wrong but yeah the old theories are still helpful for many reasons and things.
so I think scientific conclusions are reliable
What type of cells are produced at the end of meiosis?
Answer:
haploids i think
Explanation:
sorry if its wrong!
The vascular tissue of a plant transports various substances. Which substance would you expect to find in phloem, but not in xylem? a. Glucose b. Iron c. Potassium d. Water
While xylem transports water and mineral salts up from the roots to various parts of the plant, phloem transports sucrose and amino acids between the leaves and different parts of the plant. Thus, option D is correct.
What is the function of xylem and phloem?Water and dissolved minerals are distributed upward through the plant by the xylem, from the roots to the leaves. The phloem carries nutrients from the leaves to the roots.
The vascular cambium gives rise to xylem, vascular tissue that moves nutrients and water throughout the plant.
The vascular tissue known as phloem, which carries big molecules like sugar, develops outward from the vascular cambium. Increased xylem and phloem cells are produced when the vascular cambium cells divide.
Therefore, water is the substance that you expect to find in phloem.
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How many stages of development take place in incomple metamorphosis? A.two B.three C.four D.five
Answer: isnt it C. four
Explanation:
the female part of the plant is called the
A. stamen
B. pistil
Answer:
B
Explanation:
Answer:
the correct answer is B. pistil
the earth requires 24 hours for one rotation. so in 24 hours how many longtitudes will face the sun?
Answer:
The sun would observe 15 degrees of earth's longitude.
Precipitation in Jacksonville (1961-1990
True or false
Answer:
your answer is true I believe
Answer:
True it is the precipation in Jacksonville 1961 to 1990
an adaption that helps an organism blend in with the environment is called
I believe the correct answer is camouflage. The ability to blend into an animal’s environment.
Hope this helps!
if you are hiking and find fossils, can you dig them up
Answer:
thanks for the points May God bless you always
Give two reasons why studying DNA is important.
DNA is important because it encodes the genetic characteristics of a living organisms
What solution can be used to detect blood that has been cleaned or cannot be seen?
Answer:
Fluorescein is a presumptive blood test for latent bloodstain detection. It has been used in forensic applications to reveal trace amounts of blood. Traces of latent blood can be detected even after repeated cleansing of the crime scene.
Explanation:
- Eijiro <3
Which physical property of a medium is defined by how close the particles of the substance are to each other?
Answer:
The question is not complete as the options are not given, here are the options gotten from another website.
A) Crest.
B. trough.
C) density.
D) amplitude
The correct option is C.
Density.
Explanation:
This is because density of a particle is measured or define as the mass or weight of a particle divided by it's volume. This is a physical property which is determined through it's mass and volume, it illustrate how particles are closer or tend to move bearer to each other through it's mass and volume.
A food web shows how energy moves from one organism to another in an ecosystem. Students in a life science class created a diagram demonstrating a food web.
Based on the food web, which of these organisms receives its energy directly from a primary consumer?
Caterpillar
Dandelion
Frog
Grasshopper
Answer:
If you don't have a picture of the food web, I'm not sure but it's A or D
Myrtle the Turtle finishes a 5 meter race in 7 minutes, How far would he walk in 3.5 minutes? (Round to the
first decimal place.)
Answer:
2.5
Explanation:
3.5/(7/5)=2.5 hope this helps
What effect did an increasing human population have on the sustainability of a managed ebony forest?
A)The ebony forest population increased when managed, even as the human population grew. As the human population grew, forest management caused more trees to be produced.
B) The ebony forest population remained stable when managed, even as the human population grew. Forest management allowed more trees to be grown.
C) The ebony forest went extinct. As the human population grew, it was not possible to maintain the forest, even when it was managed.
The ebony forest went extinct. As the human population grew, it was not possible to maintain the forest, even when it was managed. That is option C
Forest is one of the renewable resources that needs to be conserved.
This is because the importance of forest to humans, wildlife and the soil can not be over emphasized.
Their benefits include:
They provide a protective cover for the soil against the action of wind and rain.They act as wind-breaks, reducing wind speeds and checking the erosion of the surrounding land.They provide homes for wildlife.When there is increase in human population, the chances of a conserved forest like ebonyi forest to survive is diminished.
This is so because, with the increased population there will be:
Increased demand for timber,Clearing of forest for growing crops, Setting up industries, building roads and houses.Therefore, the government may be forced to clear the forest to attend to the needs of the growing population. This can cause the ebonyi forest to go extinct.
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What struggles do aquatic organisms have that terrestrial ones do not?
If you are not going to actually answer the question don't even bother.
Answer:
Aquatic animals can be found in water habitats, which can be either fresh or marine. Terrestrial animals can be found exclusively in the land. Aquatic animals respire through gills or their skin. ... The main difference between aquatic and terrestrial animals is their habitat and modes of living
Explanation:
Answer:
being destroyed easily
Explanation:
aquatic organisms are faced with lots of challenges,,,eg.....oilspillage on water bodies,this prevents entry of oxgen into water hence suffocation leading to death,also growth of weeds such as water hyacinth which suck nutrientss and oxygen from water,,,also aquatic krganisms are hunted by lots of predators compared to that of terrestrial
Which statement is an example of variation within a species? picture attatched.
A. Birds have wings, and so do butterflies.
B.Some squirrels are gray, and others are brown,
C.A lion roars and so does a tiger.
D.Dinosaurs are extinct but we know that they existed because of fossils.
Answer: B
Explanation: The other answers are talking about similarities among different species.
What is the type of relationship between a rabbit and a leopard?
Answer:
Prey and Predator
Explanation:
rabbit is the prey and leopard is the predator
Answer:
Parisitism.
Explanation:
Im pretty sure the answer is parasitism because the Leopard would feed on the rabbit, meaning the leopard benifits while the rabbit would be harmed.
Do you think we should use technology to alter/manipulate our genetic code? Explain.
Answer: Yes and No
Explanation: I think that we should use technology to alter our genetic code if someone is ill/sick because it is actually beneficial, but I think we shouldn't dive too deep or get lost in altering genes because it can cause unintended consequences.
Explanation:
When we can govern the very biology that makes us who we are, what will it ... Technology Will Soon Give Us Precise Control Over Our Brains and Genes ... to manipulate these elements for medical purposes, do we not risk altering who we are? ... I feel a responsibility to at least explore what it would it take for the science .
Select the false statement about the effect of lymphopenia on the immune response following administration of immunosuppressive drugs like the corticosteroids. Select one: a. The immunosuppressive effect (lymphopenia) occurs 4 to 6 hours following drug administration and significantly reduces the number of circulating lymphocytes in the blood. b. Lymphopenia decreases the ability of lymphocytes to initiate and participate in an immune response. c. Corticosteroids increase the amount of lymphoid tissue and cells in the lymph nodes and spleen. d. None of these are false.
Answer:
The correct answer is option C (Corticosteroids increase the amount of lymphoid tissue and cells in the lymph nodes and spleen).
Explanation:
Lymphopenia occurs when the white blood cell count in the bloodstream of an individual that defends the body from a harmful attack is lower than normal this could be due to different reasons, maybe the body has been previously invaded by viruses, bacterias or diseases that have already weakened the immune system, or the body is under siege from a prolonged illness. The white blood cell counts may be very low or severe which rightly indicates all is not well with the body.
Corticosteroid drugs are usually used to treat inflamed areas of the body and they cause those special defensive white blood cells in the blood cell count to be channeled effectively to the bone marrow.
White blood cells, bone marrow, spleen, are examples of lymphoid tissue and cells which support the way the immune system responds to attack.
Corticosteroids don't increase the amount of lymphoid tissue and cells in the lymph nodes and spleen when immunosuppressive drugs like corticosteroids are used for individuals with lymphopenia.
According to fossil records, the horses that lived 50 million years ago were much smaller, weaker and slower than modern horses. Which process is most likely responsible for the changes that have led to the increased size, strength, and speed in horses?Immersive Reader (1 Point) commensalism inbreeding migration evolution by natural selection
Evolution by natural selection.
survival of the fittest=natural selection
The human hands and feet have similar types and numbers of bones. However, hands and feet are very different in their appearance. What physical differences do you notice between the hands and feet? How might these differences relate to differences in the function of these body parts? Would you expect other primates to have hands and feet differently like this? Why or why not?
Answer:
Hands have a larger range of dexterity compared to feet. Longer tendins and stronger grip strength, they are made for more intrucite tasks such as making and using tools. Feet have a larger surface area, made for holding large amount of weight, shorter bones and tendins allow for easy acceleration and no extra flesh to get in the way. Other more primitive species will not have the feet we have due to evolution. They simply do not have the evolved sense of brain pwer hians haev in order to make tools. So they have more need for speed, grip exc. in feet to escape pradators and live day to day. Where on the other hand humans do not.
Explanation:
The metatarsals that can be found in the foot are larger than the metacarpal bones that are in the hands.
It should also be noted that the phalanges of the hand are larger than that of the foot. The way that the metacarpal of the thumb is built is vital for mobility and movement.
Primates have hands and feet that are different from that of humans because they use their hands and feet for grasping. They also have strong clavicles and flexible shoulder joints. This enables them to climb and grasp things firmly.
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Explain why both unisexual and bisexual flowers can self pollinate.
Answer:
Bisexual flowers:
In order to make a new seed male gamete present in a pollen grain units with the female gamete present in the ovule.
Unisexual flowers:
Unisexual flower can self pollinate where both male and female flowers are present on the same plant. Stigma of the female flower can be pollinated by the pollen of the male flower present on the same plant.
The nucleus contains genetic information which controls and gives the cell _________________ about what to do.
Answer:
please give me brain list and follow
Explanation:
The main function of the cell nucleus is to control gene expression and mediate the replication of DNA during the cell cycle. The nucleus is an organelle found in eukaryotic cells. Inside its fully enclosed nuclear membrane, it contains the majority of the cell's genetic material.
Which Hawaiian island is the youngest (newest )?
Answer:im pretty sure its kauai actually
Explanation:yea i think soo!
Answer:
its hawaii
Explanation:
i hope its correct
plz can i get brainliest:)
Which of the following does the ocean provide?
Question 1 options:
Over half the oxygen we breathe
Climate regulation
Pollution
Food and medicine
Answer:
Over half of the oxygen in the worldClimate regulationFoodThe ocean provides benefits to the whole world in many forms like over half the oxygen we breathe Climate regulation and Food.
The air we breathe: The ocean produces over 1/2 of the world's oxygen and absorbs 50 instances greater carbon dioxide than our atmosphere. Climate regulation: Covering 70 percent of the Earth's surface, the sea transports warmness from the equator to the poles, regulating our weather and climate patterns. One of the primary offerings furnished via way of means of the oceans to human societies is the provisioning carrier of meals from seize fisheries and culturing operations. What is the ocean used for?The oceans have lengthy been used as a platform for delivery and communications. They additionally offer residing sources for meals (fisheries and aquaculture) in addition to pharmaceutical, biotechnology, and genetic products.
Thus it is clear that the ocean provides Over half the oxygen we breathe
Climate regulation and Food.
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what do we call the actual gas or substance that causes air pollution?
Answer:
The actual gas that causes air pollution is called a pollutant
Explanation:
Air pollution is the decrease in air quality. Air pollutants are the gases that cause air pollution.
What are pollutants?Pollutants are harmful substances and particles that affect the quality of the environment and are man-made or natural. Fly ash from volcanic eruptions is a natural pollutant that deters the air quality.
The air pollutants like carbon monoxide, sulfur dioxide, and carbon dioxide released from the burning of fossil, coal, and vehicles alter the air quality and result in a change in weather conditions.
Therefore, the pollutants are the actual gases that cause air pollution.
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Which of the following increases genetic variation by forming entirely new alleles?
Natural selection
Genetic drift
Mutation
Gene flow
Answer:
gene flow
Explanation:
type of gene flow
how does cancer effect the skin?
13. List the advantages of glycolysis.
If oxygen is present...
Answer:
Although glycolysis doesn't require oxygen, the fate of the pyruvate molecules depends on whether oxygen is present. If oxygen isn't available, the pyruvate is converted to lactate, and no additional ATP is produced from this conversion. If oxygen is present, the pyruvates are transported into the mitochondrial matrix.
Explanation: