By which process does carbon dioxide enter a plant?

Answers

Answer 1

Answer:

Photosynthesis

Explanation:

Plants get the carbon dioxide they need from the air through their leaves. It moves by diffusion through small holes in the underside of the leaf called stomata . Guard cells control the size of the stomata so that the leaf does not lose too much water in hot, windy or dry conditions.

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Pls need help the question is up there already giving BRAINLEST to a good answer

Answers

Answer:

The last choice. Think of planets, the bigger they are, the stronger they attract to one another

Explanation:

hope it helps

A new virus has been identified by DNA sequencing methods in a remote location in the South Pacific. The World Health Organization is very concerned because infection with this virus has a death rate of 20% of all infected individuals and no vaccine is available. This is an example of a(n) _____ disease.

Answers

Answer:

an emerging infectious disease

Explanation:

According to the World Health Organization (WHO), an emerging infectious disease can be defined as a newly identified and previously unknown infection in a population that may lead to serious public health concerns at local and/or international level. Emerging infectious diseases usually are caused by pathogenic organisms (like viruses) already present in the environment that acquire the ability to infect a new host species as an adaptive response to changes in ecological conditions. Some examples of emerging infectious diseases include, among others, Ebola virus disease, Chikungunya virus disease, H1N1 Influenza virus disease, etc.

List at least three health problems associated with a deficiency of vitamin D.

Answers

Answer:

hjknm

Explanation:

Which pair of structures would provide a positive identification of an animal cell under a microscope? plasma membrane, A. endoplasmic reticulum B. Golgi apparatus, mitochondrion C. lysosome, flagellum D. cell wall, chromatin

Answers

Answer:Lysosome Flagellum

Explanation:

Answer:

c. lysosome, flagellum

Explanation:

k12 I took the test

The_ theory explains how our universe became so structured and uniform.

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Answer:

The cosmological principle makes assumptions that provide scientific guidelines to enable its study. Mr. Biggins believes that the universe has been and always will look and be structured the same throughout all time.

Explanation:

Sponges lack which of the following:-definite symmetry -bilateral symmetry-mirror image-no body cavity

Answers

Sponges are members of the Phylum Porifera. They are basic animal consisting of many cells. They are described as lacking with true tissue or no body symmetry. Sponges are unsymmetrical or without body plan symmetry.

Answer - Sponges lack definite symmetry

In the Galapagos Island finches, the variation in the beak shape correspond to which finch characteristic?

Answers

Answer:

Their diet

Explanation:

Over time, all of the finches adapted to their food source. This caused the evolution of their beaks to begin.

Which statement is true of evergreen coniferous trees?

some leaves remain on the tree year-round

no organisms can eat the seeds of evergreen trees

evergreen trees only grow during the winter

there are no evergreen trees in the taiga

Answers

The statement that is true of evergreen coniferous trees is that some leaves remain on the tree year-round. The correct answer is A.

Evergreen trees have adaptations that allow them to retain their leaves, also called needles, throughout the year.

Unlike deciduous trees that shed their leaves in the fall, evergreen trees continuously photosynthesize and produce food throughout the year.

This adaptation allows evergreen trees to grow in areas with harsh climates, such as the taiga, where the winters are long and cold.

Additionally, evergreen trees produce seeds that are often eaten by a variety of organisms, including birds and small mammals.

The seeds of some evergreen trees, such as pine nuts, are also a food source for humans. Therefore, the statement that no organisms can eat the seeds of evergreen trees is false.

Lastly, the statement that there are no evergreen trees in the taiga is also false.

The taiga is dominated by evergreen coniferous trees such as spruce, fir, and pine, which are well-adapted to the cold and snowy conditions of the region.

Therefore, the correct answer is A.

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Question

Which statement is true of evergreen coniferous trees?

A) some leaves remain on the tree year-round

B) no organisms can eat the seeds of evergreen trees

C) evergreen trees only grow during the winter

D) there are no evergreen trees in the taiga

How many did you observe to be yellow

Answers

i observed a few to be yellow

A crane has a sharp and pointed beak while the duck has a flat beak.Explain why

Answers

Answer:

The crane has a sharp and pointed beak adapted for catching and grasping prey. The sharp beak allows the crane to effectively stab and pierce its prey, such as fish, frogs, or small animals. The pointed shape helps the crane to accurately target its prey and secure a firm grip.

On the other hand, the duck has a flat beak, which is better suited for its specific feeding habits. Ducks are primarily filter feeders, and their flat beak enables them to sift through water or mud to collect small organisms, insects, and plants. The flat beak acts like a sieve, allowing the duck to strain out food particles while retaining water.

The difference in beak shape between the crane and the duck reflects their distinct feeding strategies and ecological roles. Each species has evolved its beak shape to optimize its ability to capture and consume the specific types of food sources available in their respective habitats.

When a certain species disappears from the fossil record, what does that indicate?
The species has moved to a different habitat.
A. the species has moves to a different habbitat
B.
None of the above.

C.
The species has gone extinct.

D.
The species has multiplied.

Answers

Answer:

Explanation:

inquiry based pedagogy is being embraced in principle across the globe. in the last decade , it has been supported by an increasing body of research on its effectiveness. illustrate your understanding of the concept of inquiry based pedagogy with a relevant example

Answers

Inquiry-based pedagogy involves fostering curiosity and active learning. For example, students investigating real-world environmental issues and proposing solutions.

Inquiry-based pedagogy is a teaching approach that promotes active learning and critical thinking through inquiry and exploration. One relevant example of inquiry-based pedagogy is a science classroom where students are encouraged to design and conduct their own experiments. Instead of simply following instructions, students formulate research questions, develop hypotheses, plan and execute experiments, collect and analyze data, and draw conclusions. For instance, students may investigate the effect of different variables on plant growth by manipulating factors like light, water, or soil composition. This approach allows students to engage in authentic scientific practices, develop problem-solving skills, and gain a deeper understanding of the scientific method. By actively participating in their learning process, students develop a sense of ownership and become more engaged, fostering a love for learning and nurturing their ability to explore and discover knowledge independently.

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These cells produce the myelin that wrap axons in neurons found in the PNS
O Schwann cells
O Ogliodendrocytes
O Satellite cells
O Astrocytes

Answers

Answer:

Schwann cells

Explanation:

Schwann cells are the cells that produce myelin sheet around axons of neurons, providing insulation or protection from loosing the signals.

which macromolecule is involved in how hemophilia is passed

Answers

The macromolecule involved in how hemophilia is passed is DNA, specifically the genes carried on the X chromosome. The inheritance of hemophilia follows a pattern influenced by the presence or absence of the hemophilia gene on the X chromosome.

The macromolecule involved in how hemophilia is passed is DNA, specifically the genetic material carried on the X chromosome.

Hemophilia is an inherited bleeding disorder caused by a mutation in one of the genes responsible for producing clotting factors in the blood. The genes involved in hemophilia, such as the F8 gene (hemophilia A) or F9 gene (hemophilia B), are located on the X chromosome.

The X chromosome is one of the two sex chromosomes, with females having two copies (XX) and males having one copy (XY). Since hemophilia is a recessive trait, it typically affects males more often than females. This is because if a male inherits a defective X chromosome carrying the hemophilia gene, he will develop the disorder since he does not have a second X chromosome to compensate for the mutation.

In females, who have two X chromosomes, hemophilia can be passed on if they inherit a defective X chromosome from both parents. These females are carriers of the hemophilia gene and may not exhibit symptoms themselves but can pass the mutation to their offspring.

The inheritance of hemophilia follows a specific pattern, with affected males having an X chromosome with the hemophilia gene and unaffected males having a normal X chromosome. Female carriers have one normal X chromosome and one X chromosome with the hemophilia gene.

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Which is a method of making many copies of DNA?
O A. Nuclear transfer
B. Gel electrophoresis
C. Reverse transcriptase
D. Polymerase chain reaction

Answers

Answer:

D. Polymerase chain reaction

Explanation:

PCR is very percise; used to amplify or copy a specific DNA target from a mixture of DNA molecules by:

two short DNA sequences (primers) are bind to start and end the DNA targetperform the PCR; DNA templates is added to a tube that contains primers, free nucleotides, and the enzyme (DNA polymearse)it is mixed in a PCR machine that increases and decreases the temperature of the samplemixture is heated to seperate the double strnaded DNA templated into single strandsmixture is cooled so the primers can bind to the DNA templatethe DNA polymerase will synthesize to new strands of DNA from the primersduring synthesis, the end of the first cycle, the DNA molecule will consist of a new and old DNA strandPCR continues with added cycles to repeat the stepsnewly synthesized DNA segements serve as templates in later cycles; which can be copied over and over.

Which correctly lists three planets that have rings?
O Jupiter, Mars, Saturn
O Mars, Jupiter, Mercury
Mercury, Mars, Venus
O Neptune, Uranus, Jupiter

Answers

The minor Deimos Ring, as mentioned earlier, but it is not comparable to the extensive ring systems of Saturn or Jupiter Mercury does not have any known rings the correct combination is "Jupiter, Mars, Saturn" when referring to planets that have rings.

Out of the four options provided, the only combination that consists of three planets with rings is "Jupiter, Mars, Saturn."

Jupiter: Jupiter is the largest planet in our solar system and is well-known for its impressive ring system.

Although not as prominent as Saturn's rings, Jupiter's rings are made up of fine dust particles and are relatively faint compared to those of Saturn.

Mars: Mars is the fourth planet from the Sun and is often referred to as the "Red Planet."

While it doesn't possess a large, visible ring system like Saturn or Jupiter, it does have a thin dust ring called the Deimos Ring.

This ring is composed of dust particles kicked up by the Martian moon Deimos as it orbits the planet.

Saturn: Saturn is renowned for its spectacular and prominent ring system. It is composed of countless icy particles ranging in size from micrometers to meters.

Saturn's rings are one of the most iconic features in our solar system and are visible even from small telescopes.

The other options listed do not accurately represent planets with ring systems:

Mars, Jupiter, Mercury: While Jupiter is included, neither Mars nor Mercury have prominent ring systems.

Mars has the minor Deimos Ring, as mentioned earlier, but it is not comparable to the extensive ring systems of Saturn or Jupiter. Mercury does not have any known rings.

Mercury, Mars, Venus: None of these three planets have significant ring systems.

Mercury and Venus do not possess any rings, and Mars has only the minor Deimos Ring.

Neptune, Uranus, Jupiter: Neptune and Uranus both have ring systems, but Jupiter does not.

Therefore, this option does not accurately list three planets with ring systems.

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Out of the four options provided, the only combination that consists of three planets with rings is "Jupiter, Mars, Saturn."

Jupiter: Jupiter is the largest planet in our solar system and is well-known for its impressive ring system.

Although not as prominent as Saturn's rings, Jupiter's rings are made up of fine dust particles and are relatively faint compared to those of Saturn.

Mars: Mars is the fourth planet from the Sun and is often referred to as the "Red Planet."

While it doesn't possess a large, visible ring system like Saturn or Jupiter, it does have a thin dust ring called the Deimos Ring.

This ring is composed of dust particles kicked up by the Martian moon Deimos as it orbits the planet.

Saturn: Saturn is renowned for its spectacular and prominent ring system. It is composed of countless icy particles ranging in size from micrometers to meters.