Help

I think it’s D. But I’m not sure.

Why is malaria so common in Africa South of the Sahara?


A) The principal malaria transmitting mosquito - Anopheles - is common there.

B) Lack of resources and political instability prevent the building of adequate prevention programs.


C) Malaria parasites are increasingly resistant to antimalarial drugs.

D) All of the above.

Answers

Answer 1

Answer:

I also have a feeling that it is D,all of the above. Try it


Related Questions

What genotype would BOTH parents have to be to ensure that ALL offspring have unattached earlobes?

Answers

Answer:

homo zygous recessive

little a is the recessive gene and since little a is for unattached earlobes both parents need little a for all offspring to have unattached earlobes

hope this helped <3

List three things that are limiting factors on the growth of a population.

Answers

Answer:

in my opnion, in the natural world, limiting factors like the availability of food, water, shelter and spacecan change animal and plant populations. Other limiting factors, like competition for resources, predation and disease can also impact populations.

Explanation:

because of the way the lens of the eye bends light rays, the image produced by the lens is
A. Right side up
B. Black and white
C. Upside Down
D. Usually blurred​

Answers

Answer:

upisde down

Explanation:

The process of bending light to produce a focused image on the retina is called “refraction”. Ideally, the light is “refracted,” or redirected, in such a manner that the rays are focused into a precise image on the retina.

How are human populations NOT likely to be impacted by global warming?

A. Freguent intense storms

B. Rising power costs

C. Rising ses levels

D. Increased temperatures

Answers

Answer:

Rising power costs

4. Which of the following statements best
describes blood flow in the human body?
A. As blood pressure increases, the rate of
blood flow decreases.
B. As the length of a vein decreases, the
resistance to blood flow decreases.
C. As the viscosity of the blood decreases,
the rate of blood flow increases.
D. As the diameter of a blood vessel
decreases, the rate of blood flow increases.

Answers

Answer:

as the blood pressure increases, the rate of blood flow decreases

How does the binding affinity of a transcription factor to DNA affect the efficiency of Protein Synthesis?​

Answers

Answer:

The addition of transcription factor-binding sites could affect relative DNA replication efficiency in a number of ways. Each added site could produce an additive increase in replication efficiency, or one of the added sites could be responsible for all of the observed increase in RRE.

Let P = purple flowers and p = white, and T = tall plants and t = dwarf. Of the 16 possible gamete combinations in the dihybrid cross PpTt x PpTt, how many would be the phenotype white, tall?

Answers

I think the answer is 3

Task 2
Presenting a Persuasive Argument
In this activity, you’ll use presentation software to create a presentation of 10 to 15 slides that predicts how Earth’s climate zones (polar, temperate, and tropical) will change over the next century. You’ll use what you learned about the climate zones in Task 1. Your presentation should answer these questions:

Which types of climactic events do you predict will alter the climate zones?
How will climate zones be affected?
What evidence from online or other sources supports your predictions?
How might changing climate zones affect the plants and animals that live in them?
Follow the steps provided to plan and create your persuasive presentation. Do additional research if necessary and use this guide to writing a persuasive argument.

Estimated time to complete: 2 to 3 hours

Part A: Forming a Thesis
A thesis statement is the central idea of your argument. It should be focused and provide answers to the question, What am I trying to claim? It should tell listeners how you think Earth’s climate zones will change over the next century. Write your thesis statement in the answer space.

Answers

Greater climatic change in the next century is expected higher as compared in the past.

How Earth’s climate zones will change over the next century?

Across the globe due to increases in greenhouse gases such as carbon dioxide (CO2) in the atmosphere, temperature and precipitation patterns shows great change. The rate of climatic change in the next century is expected higher than nowadays.

So we can conclude that greater climatic change in the next century is expected higher as compared in the past.

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if the original cell is dead, does it stay their or does it disappear after mitosis?

Answers

Answer:

It disappears. The cell disappears because it can no longer divide if it dies.

if the original cell is dead, the cell is almost dead too. It has no ability to divide itself too.

What are the types of cell division ?

There are two types of division one is mitosis and the other one is meiosis.

Once mitosis completes, the cell has 2 groups of 46 chromosomes, each enclosed by their own nuclear membrane. The cell later splits in 2 by  process called cytokinesis and creates two clones of the original cell each with 46 mono valent chromosomes.

Mitosis is a nuclear division in which duplicated chromosomes segregates and distributed into daughter nuclei. The cell will divide after mitosis in a process called cytokinesis in which the cytoplasm is divided and two daughter cells are formed.

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Which characteristic did you use to identify the tree

Answers

Answer:

The most commom tool used to identify a tree is the LEAF - its unique shape, its margin, its colours, its venetion and how the leaves are arranged on the branch, are vital keys to identify a tree. The other most obvious key to identifying a tree is its FLOWERS, if it any.

Explanation:

Space X rocket traveled 1.2 miles
over a 3 second interval Calculate
the acceleration.

Answers

Answer:

7

Explanation:

What determines the capacity of the torch and the tip
being used?

A.Base Metal Type
B.Metal Thickness
C. Shielding Gas
D. Hose Length

Answers

Answer:

B : Metal thickness . METAL THICKNESS determines the capcity of the torch and the tip being used .

Answer:

What determines the capacity of the torch and the tip being used?

B. Metal Thickness

Explanation:

The welding tip size determines the flame size. The metal thickness and joint design dictate the correct tip size. The oxy-acetylene welding gas pressures are set according to the manufacturer's guidelines.


4. To break apart a polymer into individual monomers, what process would you use?

Answers

Answer:

hydrolysis reactions

Discuss the influence of environment on neonatal development​

Answers

can affect neural, reproductive, immune and cardiovascular function

through air, water, food

pubmedncbinlmnihgov

An effective way to reduce the waste released into the environment would be to pass a law
OA. limiting the number of fish that can be caught in the river.
OB. requiring the company to release its wastewater into a local pond.
a
OC. requiring the factory to pump its water to a treatment plant.
OD. requiring people to avoid boating and fishing on the river.

Answers

Answer:

OC

Explanation:

In OA, by limiting the number of fish caught does not have any connection with the waste released.  Its totally different idea.

In OB, pond is still a part of environment. Pond too have its own habitat and no mater if the company release less waste or too much waste, it still affect the environment.

In OD, by avoiding boating we dont have much to do. Still there is no correlation with redcing the waste released.

Normal human blood plasma contains all the amino acids required for the synthesis of body proteins, but not in equal concentrations. Why are alanine and glutamine present in much higher concentrations than any other amino acid in the blood

Answers

Answer: Alanine and glutamine play special roles in the transport of amino groups from the muscle and from other nonhepatic tissues, respectively, to the liver.

Explanation:

Two rabbits mate, each with one dominant gene
(F) for black and one recessive gene (f) for
white.
How many offspring out of every four will be
black? (complete a Punnett square to help
yourself)
A.three
B.four
C.two
D.one

Answers

3/4 offspring will be black. Here’s the Punnett square!

Determine the stability of each ecosystem. 1. an ecosystem with populations that mate with unrelated species. 2. an ecosystem that has very few species at every trophic level. 3. an ecosystem with populations that mate with only related species. 4. an ecosystem that has many species at every trophic level. Less Stable More Stable

Answers

The number of species and the mating patterns of species in an ecosystem will make it either more or less stable.

What is the stability of an ecosystem?

The stability of an ecosystem refers to the ability of that ecosystem to remain relatively unchanged in the composition of both biotic and abiotic factors over a long period of time.

The stability of an ecosystem depends on the changes that occurs in the ecosystem.

Considering the above situations;

an ecosystem with populations that mate with unrelated species will be less stable.an ecosystem that has very few species at every trophic level will be less stable.an ecosystem with populations that mate with only related species will be more stablean ecosystem that has many species at every trophic level will be more stable

Therefore, the number of species and the mating patterns of species in an ecosystem affects the stability of the ecosystem.

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I will give Brainliest!!!!!!!!

Which of these statements is the most correct regarding GENOTYPE?

A. The genotype is the combination of the two alleles that are inherited from your parents.

B. The genotype is the physical appearance of the trait determined by a certain phenotype.


C. The genotype is the allele that you inherit from your mother.

D. The genotype of a trait does not influence the phenotype at all.

Answers

the answer is A i think

What is the symbol of the element with 28 protons in its nucleus?

Answers

The element with 28 protons in its nucleus is Nickel

Name one weakness in your model

Answers

Answer:

This model doesn’t specifically state where the Calvin cycle takes place. The student’s model doesn’t specifically label the location either, so this is a definite weakness in the new model.

Explanation:

edmuntum answer

very
Which of the
following mineral
characteristics are
associated with
gold?
A. it is a compound
B. it is made of many elements
C. it is man made
D. it is a solid

Answers

Answer:

A. It is a compound

Explanation:

Color, hardness, streak, specific gravity, ductility, malleability

Color, hardness, streak, specific gravity, ductility, malleability. Many uses in jewelry, coinage, and bullion. Gold is an electrical conductor used in computers, circuits, appliances, cell phones, etc. Dental work, gilding, and many other uses.

List three purposes of marking and recapturing the organism (snake)?

Answers

Answer:

this is called The Mark-Recapture technique this is used to estimate the size of a population where it is impractical to count every individual. The basic idea is that you capture a small number of individuals, put a harmless mark on them, and release them back into the population.

Explanation:

I do hope this helps with this...I tried

Identify the sedimentary rock composed of halite and explain how this rock is usually formed.

Answers

Rock Salt - Crystals from chemical precipitates and evaporites.

The sedimentary rock composed of halite is known as rock salt, and it is usually formed by the process of evaporation, and rock salt is formed in environments where there is a high concentration of salt in water.

What is rock salt?

Rock salt is formed in environments where there is a high concentration of salt in water, such as salt lakes, shallow seas, or salt pans, and when the water in these environments evaporates due to high temperatures and low precipitation, the dissolved salt in the water is left behind and forms deposits. These deposits can be buried by sediment over time and eventually become compacted and cemented to form rock salt. Rock salt is made up almost entirely of the mineral halite, which is composed of sodium and chlorine ions.

Hence, The sedimentary rock composed of halite is known as rock salt. It is usually formed by the process of evaporation.

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Which characteristics apply to the autonomic nervous system?

Answers

Answer:What is one of the big differences between traditional media and social media?

a. participatory production

b. social media reaches only a few people at a time

c. the management structure of the companies

d. traditional media offers no way for audiences to communicate with media producers

Explanation:

PLSSS HELP ITS DUE TODAY

A student used individuals plastic blocks that snap together to build four walls and a roof. Then, the student connected the walls together, put on the roof, and added a plastic door in one of the walls to make a house. If we used this model to represent the organization of living things and we let the house represent an organ, what do the individual plastic blocks represent?


A. Cells

B. Tissues

C. Organelles

D. Organisms

Answers

Answer:

tissues

Explanation:

I would probably use tissues because the tissue is a biological organizational level between cells and a complete organ. I hope this helps...

A plant can have either broad leaves (B) or narrow leaves (b). A plant with genotype BB is crossed with a plant with genotype Bb. Which Punnett square correctly represents this cross?

Answers

The punnet square that correctly represents the cross between a plant with genotype BB and Bb is diagram C.

What is a punnet square?

A punnet square is a tabular representation of the cross between the genotypes of an individual.

The gametes of each individual is used to plot the punnet square.

According to this question, a plant with genotype BB is crossed with a plant with genotype Bb. This means that the punnet square will have the following alleles for each genotype:

BB - B and BBb - B and b

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Which is not a famous art centre in South Africa.
a. Polly Street b. Rorkes Drift C. Community Arts Centre d. Long Street dot Previous page​

Answers

d . long street dor previous page

What is the best measure of biodiversity? Is it

• the total number of species in an area

• the even distribution of species across that area

• whether or not rare species are present

• Whether or not the species have different “functions” in the ecosystem?

Answers

It’s the total number of species in the area. I believe the two components are species richness and relative abundance.

Cedar waxwings are one species of bird that is adapted to
withstand our cold winters. Bird watchers in Barrie provide
cedar waxwings with seeds at birdfeeders during winter
months. wum
(a) Would the seeds alter the carrying capacity of the
ecosystem? Explain.
(b) Provide a hypothesis that explains why bird watchers have
noted an increase in the falcon population in recent years.

Answers

The process of adding or removing the food supply (seeds) in an ecosystem would alter its carrying capacity.

What do you mean by Carrying capacity?

Carrying capacity may be defined as the maximum number of individuals that can be supported by a habitat to live. Every habitat has a fixed carrying capacity.

When the winter period comes, it decreases the number of seeds of cedar waxwings. At this time seeds undergo to dormant stage due to the freezing temperature of the winter, hence they can not be reproduced at this point.

In spite of this, offering seeds to the bird feeders during winter can be adequate for the reduction in the food supply of these birds.

It can assist them with sufficient food resources which allows them to get through the winter season. Hence, increasing the carrying capacity for the cedar waxwings in the ecosystem.

Therefore, it is well described above.

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