Answer:
b human beings is the answer
HELP!!!!!! I don’t get it plz help
Which vitamin helps in the production of red blood cells and supplies oxygen to cells?
a) iron
b) protein
c) copper
d) calcium
Answer:
iron
Explanation:
iron helps in blood making
What would happen to the propagation of a neural impulse if the membrane potential (voltage) at the synaptic terminal did not cross the threshold to open voltage-gated calcium channels
Answer: Hello the options related to your question is missing attached below are the missing options
answer : Calcium channels would remain closed, causing the neural impulse to travel back to the cell body. ( B )
Explanation:
When the membrane potential at the synaptic terminal does not cross the given threshold to an open Voltage-gated calcium channels, the propagation of the neural impulse will travel back to the cell body and this is caused by the calcium channels to remaining closed
PLEASE ANSWER ASAP WILL MARK BRAINLIEST!!
Choose all the answers that apply.
What does the cardiovascular system do?
a.) transports oxygen and carbon dioxide for the respiratory system
b.) carries nutrients for the digestive system
c.) works with the immune system to fight infection
d.) carries hormones for the endocrine system
e.) sends nerve impulses to the brain and spinal cord
Please answer both I would mark as brainliest.
What is a Menstrual Cycle??
Answer:
The menstrual cycle is a series of natural changes in hormone production and the structures of the uterus and ovaries of the female reproductive system that make pregnancy possible. The ovarian cycle controls the production and release of eggs and the cyclic release of estrogen and progesterone. The uterine cycle governs the preparation and maintenance of the lining of the uterus to receive a fertilized egg. These cycles are concurrent and coordinated, normally last between 21 and 35 days in adult women, with a median length of 28 days, and continue for about 30–45 years.
It basically prepares you to have a baby!
Feel free too ask questions.
Explanation:
In this assignment, you will use simulations to analyze how climate, resources, and habitat size affect
carrying capacity. You will then look at another simulation to analyze the effects of certain factors that
affect biodiversity and populations. Finally, you will write and revise a conclusion on how human activity
affects biodiversity.
Background Information
Population growth is the change in size of a group of organisms of the same species over time. It is
affected by four factors: birth rate, death rate, immigration, and emigration.
Carrying capacity is the maximum total population that an area can support. Carrying capacity limits
population growth and is affected by competition for food, water, shelter, or mates, and threat of
predators, disease, and parasites. Carrying capacity may be affected by one or a combination of these
factors.
Biodiversity is the total variety of organisms that live in the biosphere. Biodiversity is affected by the loss
of habitat, introduction of invasive species, pollution, and/or human activities.
Answer:
Larger habitats support populations with higher carrying capacities. Higher quality habitats support populations with higher carrying capacities. There is no difference in population growth rate between large and small habitats. Some major threats to biodiversity are: Habitat destruction/Deforestation, Introduced and invasive species, Genetic pollution, Over exploitation, Hybridization, Climate change, Diseases, Human overpopulation. If abiotic or biotic factors change, the carrying capacity changes as well. Natural disasters can destroy resources in an ecosystem. If resources are destroyed, the ecosystem will not be able to support a large population. This causes the carrying capacity to decrease.
Carrying capacity could be reduced if each individual within the species consumed less from the environment. Think about humans: if every human needs a four car garage and a large house, the planet can sustain fewer humans than if each human lived in a studio apartment and traveled using a bicycle. It would take 1.75 Earths to sustain our current population. If current trends continue, we will reach 3 Earths by the year 2050. It is beyond dispute that the modern industrial world has been able to temporarily expand Earth's carrying capacity for our species. As Nordhaus points out, population has grown dramatically (from less than a billion in 1800 to 7.6 billion today), and so has per capita consumption. Historically, habitat and land use change have had the biggest impact on biodiversity in all ecosystems, but climate change and pollution are projected to increasingly affect all aspects of biodiversity. Sustainable agriculture practices support integrating biodiversity in various ways including in terms of diversity of crops, traditional agriculture techniques to control pests and increase productivity as well as ensuring that farmed land is made up of a diverse mix of grazing land, crop land, orchards, wetlands and more.
Explanation:
Hope this helps :)
Explain the concept of half life
Answer:
Explanation:
Half-life is defined as the time it takes for one-half of a radioactive element to decay into a daughter isotope. As radioactive isotopes of elements decay, they lose their radioactivity and become a brand new element known as a daughter isotope.
Fred discovered a new organism. It is eukaryotic and multicellular, and it flies to get its food, which is a type of grass. Which kingdom does it belong in?
plants
fungi
archaebacteria
bacteria
animals
protists
need the answers quick
Answer: Animals
Explanation: Animal cells are eukaryotic but so are plants. However, only an animal can fly to get its food. Plants get their food by the sun or by themselves.
Hope that helped! :)
Please select the word from the list that best fits the definition
An echinoderm that is covered with movable spines and that eats seaweed
sea urchin
sea star
brittle star
sea cucumber
echinoderm
Answer:
echinoderm I'm pretty sure but I'm not 100% so if I get it incorrect I'm sorry
Which of these results is an advantage of the green garden technology shown
in the picture compared with other gardening practices?
A. It conserves forest resources.
B. It conserves water.
C. It prevents air pollution.
D. It prevents water pollution.
SUBMIT
The result is an advantage of the green garden technology shown in the picture compared with other gardening practices is it conserves water.
There are both direct and indirect uses for water. Bathing, drinking, and cooking are examples of direct uses, while the production of steel for automobiles and the processing of wood for paper are examples of indirect uses.
Water is used by every cell, organ, and tissue in our bodies to keep our body temperature stable and maintain other bodily functions. Since our bodies lose water through breathing, perspiring, and processing, it's vital to rehydrate.
Learn more about benefits of water:
https://brainly.com/question/6469523
#SPJ7
Comprehensive detail and links between structure and functions of animal cells and different tissue in animals
Answer:
Great relationship.
Explanation:
There is a great relationship between the structure and functions of animal cells because the structure of cells helps the cell to perform a particular function assign to it. The cells in epithelial tissue are tightly packed together with a very little intercellular matrix. intercellular matrix is a non-living material used to fill the spaces between the cell. Due to this structure, the epithelial tissue forms the covering of all body and helps in protecting the skin.
Dominant refers to...
A. The genetic makeup of an organism
B. The trait that is expressed over another trait
C. The physical traits you can see in an organism
D. The trait that is not expressed when a dominant trait is present
Answer:
B. The trait that is expressed over another trait.
What can coral do to waves during stroms
Answer:
The researchers performed a meta-analysis of 27 previous studies of how coral reefs around the world dissipate wave energy, conducted in conditions ranging from normal surf to hurricane-level waves. They found that coral reefs reduce wave energy by an average of 97 percent, dissipating disproportionately more wave energy as wave energy increased.
Hope this Helps :)
Explanation:
Answer:
coral reefs protect the shore from storms and other natural disasters (it creates a buffer by reducing the impact of the harsh waves)
Explanation:
Mixing chamber for air and dust is
observed in ....
Explanation: Should We Fill The Blanks ? Or What I don't understand this question
if text Mike 25 minutes to go to work on a text Ashley 15 minutes to go to work today Mike left home at 8:30 a.m. and I should leave for my 8:15 a.m. arrive at work earlier
Answer:
mike arrived to work at 8:55 while Ashley arrived at 9:05
Explanation:
8:30 + 25 min = 8:55
8:15 + 50 min = 865 so that would be 9:05
what did the soil conservation act of 1935 call for?
a. poor farming practices and loss of farming soil
b. a federal bureau to regulate the use of federal lands
c. planting native grasses and tree instead of crops
d. a national soil- and water-conservation program
C-planting native grasses and tree instead of crops
3
1. Which one of the following scientists
was NOT involved with discovery of
viruses?
(1 Point)
Martinus Beijerinck
Felix d'Herrelle
Robert Fleming
3
Dimitri Ivanowsky
Answer:
Robert Flemming
Explanation:
This is because Robert Flemming was a Scottish actor and he invented black guitar. Scientist starts to discover virus in the 1930s . The first virus discovered was tobacco virus and it is discovered by Dimitri IIvanowsky. Electrons microscope was use to discover it because it was too tiny.
State 5 importance of diffusion in liquid
Answer:
Diffusion of solutes in liquids is very important in many industrial processes, especially in such separation operations as
1) liquid–liquid extraction or solvent extraction,
2) gas absorption
3) distillation
4) Diffusion is important to cells because it allows them to gain the useful substances they require to obtain energy and grow
5)and lets them get rid of waste products.
PLEASE HELP QUICK!!!
Which of the following is caused by mutations?
A. Mutations can cause genetic disorders.
B. Mutations never have any effect on
organisms.
C. Mutations only cause problems on the sex
chromosomes.
D. Mutations only cause problems on autosomal
chromosomes.
Answer:
C
Explanation:
Sssssddddddddddddsdd
A dispersion pattern that indicates that resources are abundant, evenly distributed with little interaction within individuals is:_______.
Answer:
Uniform dispersion pattern.
Explanation:
Uniform dispersion pattern is a type of dispersion pattern in which resources are present in abundant quantity as well as evenly distributed with little interaction within individuals. Due to abundant quantity of resources , the population of organisms increases that leads to more population of individuals in the ecosystem. Due to abundant amount of resources, there is less competition as well as interaction between individuals that are present at that time.
NEED ANSWERED ASAP, WILL GIVE BRAINLIEST!
In eukaryotic cells, this process allows multiple proteins to be produced from the same gene.
a. Activator
b. Enhancer
c. Histone Acetylation
d. Methylation
e. Alternative RNA splicing
Answer:
En todos los organismos el contenido del ADN de todas sus células (salvo en los gametos) es esencialmente idéntico. Esto quiere decir que contienen toda la información necesaria para la síntesis de todas las proteínas. Pero no todos los genes se expresan al mismo tiempo ni en todas las células.
Answer: Gene Splicing
Explanation:
I hope this helps!
It has been proposed that the presence of black markings on the throat of kung fu geckos is coded by a dominant allele (B) and that the absence of such markings is coded by a recessive allele (b). To test this idea, heterozygous individuals are crossed (Bb x Bb) producing 500 offspring of which 350 have black markings and 150 don’t have black markings. Based on a punnett square, the expected phenotypic ratio for black markings to no black markings is 3:1.
Required:
Write down the correct statistical approach to test if the data is consistent with the expected 3:1 ratio.
Answer:
See the answer below
Explanation:
The correct statistical approach to test if the data is consistent with the expected 3:1 ratio would be the Chi square.
Chi-square = [tex]\frac{(O - E)^2}{E}[/tex] where O = observed frequency and E = Expected frequency. In this case:
Phenotype O E Chi square
Blacks 350 3/4 x 500 = 375 [tex]\frac{(350-375)^2}{375}[/tex] = 1.67Non blacks 150 1/4 x 500 = 125 [tex]\frac{(150-125)^2}{125}[/tex] = 5Total Chi square = 1.67 + 5 = 6.67
Degree of freedom = 1
Tabulated Chi square = 3.841
Since the calculated Chi-square is more than the tabulated value, the null hypothesis is rejected and we conclude that the data is not consistent with the expected 3:1 ratio.
a car moves takes in fuel releases energy from fuel gets rid of waste through the exhaust pipe is a car living thing
Answer:
The correct answer is - no, the car is not a living thing.
Explanation:
All living organisms have definite life processes that are characteristics of a living organism and are common in every living being. There are seven life processes that determined and need to do to count as a living thing, that are -
1. Movement - all living things show some type of movement, even plants
2. Respiration - required to get energy from food
3. Sensitivity - sense what is happening around
4. Growth - all living things grow
5. Reproduction - increasing number of the same type
6. Excretion - removal of biological waste
7. Nutrition - utilizing food
A car shows movement and the ability to get energy from fuel similarly as respiration and nutrition can show sensitivity if an alarm installed, and removes waste through exhaust pipes like excretion. However, it can not grow or make another same type like reproduction, So a car is not alive.
Burrowing owls sometimes build their nests in holes that were dug by prairie dogs, coyotes, or badgers and have been since abandoned. They sometimes line the nests with cattle or horse dung. Why
Answer:
To avoid extreme temperature and keep away predators.
Explanation:
Burrowing owls sometimes line the nests with cattle or horse dung in order to avoid extreme temperature. The cattle dung protect the Burrowing owls from extreme temperature of the surrounding so they make nests close to these cattle dung. These dung has many insects which is a food of Burrowing owls and this cattle dung also keep predators away from Burrowing owls.
1. What does the simulation model? How do the components of the simulation model these ideas?
Give an example to support your answer.
Answer:
The correct answer is - computer-based experiment or model where each component of this experiment or model contributes to the calculation of the effects caused by the interaction of uncertain inputs.
Explanation:
A simulation model is a model that uses the known data that already existed to make future inferences. Various components of this system interact with other inputs to calculate the future impacts. Simulation models consist of the following components:
System entities, input variables, performance measures, and functional relationships.
For instance, the differences in water temperature affect the interaction between various trophic levels in the coral reef ecosystem.
Anytime that a substance changes size, shape, or temperature it would be considered a------------------ change. But, if it changed properties such as its density, pH, or how it reacts with other substances it is most likely a -------------- change
Answer:
physical
chemical
Explanation:
changes in size and shape are just physical and changes into a different substance are chemical
What is the chemical name for N2O3?
Answer:
Dinitrogen trioxide
Explanation:
Answer:
dinitrogen trioxide
Explanation:
Dinitrogen trioxide is the chemical compound with the formula N203
What is the largest organ in the body
g Name and describe two possible pathogens that could be responsible. The spinal tap reveals the presence of Gram-negative cocci in the CSF. What would be the likely diagnosis
Answer:
Explanation:
The missing information describing the status of the sick sophomore student is attached in the image below.
The first question says we should name and describe the two possible pathogens responsible for such.
The two possible pathogens are:
Virus and Bacteria.
Recall that, the College student experienced a severe headache, nausea, vomiting, neck stiffness, and fever.
These highlighted symptoms are commonly caused by meningitis which is a bacterial infection.
Surgeons, surgical tools, and scrub nurses must all be sterile when doing surgery; If any infection arises provided all crucial measures were not taking into consideration, it would harm the patient and there will be a risk of meningitis as a result of this.
SImilarly, given that In the CSF, the presence of Gram-negative cocci is shown via a spinal tap; then the likely diagnosis would be that:
The patient has suffered from Neisseria meningitis.
This is because Gram-negative cocci are the most prevalent cause of infection in persons of this age group and In the Gram stain test, it has a dark red color.