Diseases can be caused by many different types of organisms, including protozoa. Which of the following diseases is caused by a protozoan?
A. anthrax
B. influenza (flu)
C. malaria
D. tuberculosis

Answer: How does oxygen get into the bloodstream? Inside the air sacs, oxygen moves across paper-thin walls to tiny blood vessels called capillaries and into your blood. A protein called haemoglobin in the red blood cells then carries the oxygen around your body.OK Our typical red cell passes from the capillary into the venules, and then into veins. It flows back to the right side of the heart, completing the second loop of its circuit [music out]. As we saw, it then travels back to the lungs.The heart, blood and blood vessels work together to service the cells of the body. Using the network of arteries, veins and capillaries, blood carries carbon dioxide to the lungs (for exhalation) and picks up oxygen. From the small intestine, the blood gathers food nutrients and delivers them to every cell.

Explanation:

Answer:

B) XRxr XrY

XRXr,XRY,XrXr,XrY

Genotype ratio:1:1:1:1

Phenotype ratio: 2:2 50% white, 50% red

C) XRXR, XrY

XRXr,XRY,XRXr,XRY

Genotype: 2:2

Phenotype: 100% white

D) XRXR,XRY

XRXR,XRXR,XRY,XRY

Genotype: 2:2

Phenotype: 100% white

Answer:

A?

Explanation:

The first step of protein synthesis is transcription, and transcription occurs in the nucleus of the cell... so...

Answer:

Ministry of climate change, Ministry of Commerce and Textile Industry, Ministry of Communications and Ministry of Defense

Explanation:

Ministry of climate change, Ministry of Commerce and Textile Industry, Ministry of Communications and Ministry of Defense are the four departments of national government. Every department has their own functions and responsibilities which is done by the officials of that departments. These departments has a great role in running of the government efficiently.

Answer:

B-Precambrian is the earliest part of earth's history

Answer:

The Earth's orbit around the Sun is an ellipse, but it does change shape. ... At other times, the ellipse is more pronounced so that the Earth moves closer and further away from the Sun as it orbits. When the Earth is closer to the Sun our climate is warmer and this cycle also affects the length of the seasons.

Answer:

Ovary, in botany, enlarged basal portion of the pistil, the female organ of a flower. The ovary contains ovules, which develop into seeds upon fertilization. The ovary itself will mature into a fruit, either dry or fleshy, enclosing the seeds.

Answer:

Image result for A plants ovary helps the plant carry out what function?

Ovary, in botany, enlarged basal portion of the pistil, the female organ of a flower. The ovary contains ovules, which develop into seeds upon fertilization. The ovary itself will mature into a fruit, either dry or fleshy, enclosing the seeds.

Answer:

motor neuron-spinal cord- brain

Answer:

its A

Explanation:

Answer:

A

Explanation:

Answer:

top left:

      T      T

T    TT    TT

T    TT     TT

1) dominant tall 2) dominant tall 3) dominant tall 4) dominant tall

top right:

    T      t

T   TT    Tt

t    Tt     tt

1) dominant tall 2) mixed hybrid 3) mixed hybrid 4) recessive short

bottom left:

      T     T

T   TT    TT

t    Tt      Tt

1) dominant tall 2) dominant tall 3) mixed hybrid 4) mixed hybrid

bottom right:

      t     t

t     tt    tt

t     tt    tt

1) recessive short 2) recessive short 3)recessive short 4) recessive short

Answer:

When heat is added to a substance, the molecules and atoms vibrate faster. As atoms vibrate faster, the space between atoms increases. The motion and spacing of the particles determines the state of matter of the substance. The end result of increased molecular motion is that the object expands and takes up more space.

Explanation:

Answer:

a

Explanation:

bb

Answer:

They have homologous structures because they have a common ancestor.

homologous structures because they have a common ancestor is the most likely reason that horses and mountain goats have hooves.

Homologous structures shoe the same structure, but may have a distinct  function, it indicate a common ancestor.

A homologous structure is an organ or bone seen  common between different animals that demonstrates an anatomical commonality indicating that the animals share a common ancestor.

on the other hand analogous structures where two unrelated species have structures with similar forms or functions due to convergent evolution.

for example of a homologous structure is the wing of a bird and an insect.

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Answer:

abcdefs

Explanation:

Answer:

the effects of sunlight on the aquatic life inhabiting the Amazon River. The center of all aquatic life in the Amazon is located in The Amazon Basin, the sun makes sure that all fish and plant life can sustain life.

The sunlight affects the aquatic species that lives in the Amazon River. The Amazon Basin is the epicenter of all aquatic life in the Amazon, where the sun ensures that all fish and plant life may survive.

The region of South America that the Amazon River and its tributaries drain is known as the Amazon basin. Approximately 6,300,000 km2, or 35.5 percent of South America, is covered by the Amazon river basin.

The Amazon basin not only contains the world's largest remaining tropical rainforest, it also harbours at least 10% of the known biodiversity, including endemic and threatened species of plants and animals, and its river contributes 15–16% of all river flow into the oceans.

The aquatic animals that inhabit the Amazon River are impacted by sunlight. All aquatic life in the Amazon is concentrated in the Amazon Basin, where the sun ensures the survival of all fish and plant life.

Thus, this is the chief effect of sunlight on the aquatic life inhabiting amazon river.

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The collision between an oceanic and a continental plate, or two oceanic plates originate volcanoes.  a) oceanic crust at convergent boundary b) heats up.

Collision area between two plates. Two continental plates might collide, or two oceanic plates, or one oceanic plate with a continental one.

In the last two cases, the thicker and older plate subduces under the other plate, and magma rises to the surface by crevices.  The Himalayas and Los Andes are examples of these collisions.

Plates' movement might produce earthquakes. Also, collisions create volcanic arches and continental arches.

When one of the plates sinks under the other one, it reaches a depth where it melts and magma rises. Volcanoes get formed on the superior plate since magma flows over it.

The subduction of oceanic crust at convergent boundary often forms volcanoes. This phenomenon occurs because the underground pressure squeezes water out of the dense crust, and this water works its way into the mantle. The water heats up the mantle and allows for the creation of magma.

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Answer:Ocean crust at a convergent / heats up

Explanation:

Answer:

12: curly wings  

13: normal wings  

14: normal wings

for the last three the data would look like AA, Aa, aa

Also let me tell you this as a junior in high school this year of science is the easiest thing ever

Explanation:

Answer:

Can confirm it is A

Explanation:

The process of the natural selection produce change occurs when there is the individual member of species.

It refer to the group of the organism where it should be reproduced in a natural way with one another and also developed the fertilization off-spring.

The organism that does reproduction at a se-xually only, the species population, and the animal species should not change the natural selection.

It is the process via which populations of living organisms should be adapt and change.

Therefore, the option A is correct.

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Answer:T-cells are a type of white blood cell that work with macrophages. Unlike macrophages that can attack any invading cell or virus, each T-cell can fight only one type of virus. You might think this means macrophages are stronger than T-cells, but they aren’t. Instead, T-cells are like a special forces unit that fights only one kind of virus that might be attacking your body.The T-cell receptor fits with its antigen like a complex key. When the perfectly shaped virus antigen on an infected cell fits into the Killer T-cell receptor, the T-cell releases perforin and cytotoxins. ... Cytotoxins go directly inside the cell through this pore, destroying it and any viruses inside.

Explanation:

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Answer:

In order for something to be classified as living, it must grow and develop, use energy, reproduce, be made of cells, respond to its environment, and adapt. While many things meet one or more of these criteria, a living thing must meet all of the criteria.

Answer:

The second option: Both alleles are expressed

Explanation:

Codominance is when both alleles are expressed.

Answer:

The water is drawn in the xylem through capillary action and is dispersed through out the entire plant from stem to tips of the leaves and petals. When the water is colored, the color from the water can stain the plant, especially if it is a light colored plant, such as the white petals on our flowers.

Explanation:

Answer:

Fitness or aptitude

Explanation:

Aptitude (or fitness) is the genotype/phenotype that results in the survival, fertility, and capability of having a mate. It is a way of measuring the individual ability to leave fertile offspring.

Aptitude puts together everything that matters in natural selection. Includes the survival capability, finding a mate partner possibility, producing fertile descendants, and leaving the genes to the next generation. The aptitude of a genotype must be significant for natural selection to act in its favor.