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If climate change shifted environmental conditions back to the those of the very earliest horse, Eohippus, how might the remaining wild horses in Europe and North America change over the ensuing millennia?

A) the bone structures in their legs would likely get longer for running away from new predators

B) the structure of their feet would likely change to include more digits

C) Their size would likely increase for the new environment

D) Their muzzles would likely get longer for the new environment

Answer:

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Answer:

It's the first one. Carbohydrates and lipids contain the same elements in different ratios or  proportions.

The point mutation can alter the amount of DNA sequences depending upon the type of mutation.

A point mutation is a type of mutation in which the DNA or RNA, the organism's genetic material, is altered by the addition, deletion, or modification of a single nucleotide base. The amount of DNA is unaffected by base substitution since the nucleotide count is unaffected after the substitution. The amount of DNA grows with insertions and mutations because there are more nucleotides involved, whereas it decreases with deletion mutations. A common example of substitution point mutation is sickle cell anemia.

Hence, the type of point mutation determines the amount of DNA.

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True. The upper respiratory tract includes the nose, nasal cavity, sinuses, pharynx, and larynx.

To determine the number of grams of nitrogen in 7.5 g of Ca(NO3)2, we first need to calculate the molar mass of Ca(NO3)2:

Ca: 1 x 40.08 g/mol = 40.08 g/mol

N: 2 x 14.01 g/mol = 28.02 g/mol

O: 6 x 16.00 g/mol = 96.00 g/mol

Total molar mass = 164.10 g/mol

Next, we can use the molar mass to convert the given mass of Ca(NO3)2 to moles:

7.5 g Ca(NO3)2 x (1 mol / 164.10 g) = 0.0457 mol Ca(NO3)2

Finally, we can use the mole ratio between Ca(NO3)2 and nitrogen (N) to calculate the number of moles of nitrogen:

1 mol Ca(NO3)2 contains 2 moles of N

0.0457 mol Ca(NO3)2 x (2 mol N / 1 mol Ca(NO3)2) = 0.0914 mol N

Now we can use the molar mass of nitrogen to convert from moles to grams:

0.0914 mol N x (14.01 g/mol) = 1.28 g N

Therefore, there are 1.28 g of nitrogen in 7.5 g of Ca(NO3)2.

The answer is B) 1.3 g.

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Answer:

C. TCCAGTAA

Explanation:

Base pairing rule;

A - T

C - G

and vice versa.

hope it helps. :)

Answer:

Kelp is an ecologically and economically important foundation species in California, where forests line nutrient-rich, rocky bottom coasts. One of the detrimental impacts of increased carbon in the atmosphere is its subsequent absorption by the planet’s oceans, which causes acidification – a chemical imbalance that can negatively impact the overall health of marine ecosystems, including animals people depend on for food.

Kelp has been targeted as a potentially ameliorating species in part because of its speedy growth – up to 5 inches per day – during which it undergoes a large amount of photosynthesis that produces oxygen and removes carbon dioxide from the water. In Monterey Bay, the effects of giant kelp are also influenced by seasonal upwelling, when deep, nutrient-rich, highly acidic water from the Pacific is pulled toward the surface of the bay.

Explanation:

change it up a bit but hop this helps?

Answer:

D/ last one

Explanation:

please give brainlest need 2 more

Answer:

It is a geyser that formed due to water heated by magma erupting at Earth’s surface.

Answer: d. It is a geyser that formed due to water heated by magma erupting at Earth’s surface.

Explanation:

Glial cell is the part of the nervous system helps maintain homeostasis by providing nutrients and support to living neurons while also helping digest dead neurons.

There are different types of the glial cells which have different functions. The oligodendrocytes serve to speed up the condition of action potential by formation of myelin sheath around the axon.

Microglia are the glial cells that detect and kill the foreign invaders of neurons. Astrocytes are the glial cells that provide nutrients to neurons, hold them in place and digest the dead neurons.

Therefore, Glial cell is the part of the nervous system helps maintain homeostasis by providing nutrients and support to living neurons while also helping digest dead neurons.

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These statements are an example of a factual description of the behavior of ginkgo trees in Forest Lawn during autumn.

Specifically, it describes the phenomenon of ginkgo trees shedding their leaves over a 24-hour period and suggests that all the trees in the forest will go through this process in a single day. It is possible that this information may be based on observations or data collected by researchers or naturalists who have studied the behavior of ginkgo trees in this particular forest.

Ginkgo trees are a type of tree that is native to China and is also commonly found in other parts of the world. They are characterized by their unique fan-shaped leaves and are considered to be a living fossil, as they are one of the oldest tree species in the world.

Ginkgo trees are also known for their hardy nature and resistance to pests and diseases, making them a popular choice for landscaping and ornamental use in many parts of the world. In addition, ginkgo trees have also been used in traditional medicine for centuries and are believed to have various health benefits.

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Answer:

The structure labelled a was marked 10 and structure b was marked 20 how much bigger did these structures make the cells appear?

Answer:

DNA

Explanation:

Answer:

13

Explanation:

There were 13 new WNV positive dead birds reported in California last week from the following counties: Contra Costa (2), Los Angeles (1), Orange (2), Sacramento (2), San Joaquin (2), and Yolo (4). 261 dead birds from 18 counties have tested positive for WNV in 2020.

Answer:

Most of the ATP in cells is produced by the enzyme ATP synthase, which converts ADP and phosphate to ATP. ATP synthase is located in the membrane of cellular structures called mitochondria; in plant cells, the enzyme also is found in chloroplasts.

Explanation:

Answer:

When the cell has extra energy it stores that enrgy

by reattcaching a free phosphate molecule to ADP, turning it back into ATP. The ATP molecule is just lile  a rechargable battery.

The statements that describe active transport are as follows:

Active transport is the process whereby molecules or substances are moved from a region of lower concentration to a region of higher concentration across a membrane.

Active transport moves molecules against a concentration gradient, hence, requires the input of energy for it to occur.

Based on the above explanation, the statements that describe active transport are as follows:

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According to the question, The percentage of heterozygous individuals (carriers). Thus, option "C" is correct.

The Hardy-Weinberg equilibrium theory states that the allelic frequencies in a locus are represented as p and q. Assuming a diallelic gene,  

p is the frequency of the dominant allele,  

q is the frequency of the recessive allele.

The genotypic frequencies after one generation are  

p² (H0m0zyg0us dominant genotypic frequency),  

2pq (Heter0zyg0us genotypic frequency),  

q² (H0m0zyg0us recessive genotypic frequency)

Thus, option "C" is correct.

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The children will have a 3:1 genotypic ratio and a 1:1 phenotypic ratio.

H is a dominant attribute, therefore

recessive trait h as

Heterozygous denotes that the alleles on the gene encoding a particular trait are different. Both of the parents in this situation had the tendency to bring both shiny and dull objects home, but because bringing shiny objects home is the dominating trait, it is the only one that would cause them to take action.

shiny objects are the parental trait of shiny objects.

the genotype of the parents: Hh 》 Hh

Gametes from the parents: (H) (h) 》(H) (h)

fertilization at random: punnet square

\(\left[\begin{array}{ccc}H&h&\\H&HH&Hh\\h&Hh&hh\end{array}\right]\)

F1 generation trait= Shiny objects 》 dull objects

the genotype of the first generation: HH, Hh, Hh 》hh

Genotypic ratio = 3 children for every 1 offspring, with 75% bright and 25% boring items.

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A population size drops before eventually stabilizing between the time it exceeds its carrying capacity and the time it recovers and stabilizes.

The correct statement is D.

the state of being set and unchanging, or the process of creating something similar: The AIDS epidemic was beginning to stabilize in South Africa. It was an impressive accomplishment that the currency was able to stabilize over night.

On a rocking boat, you undoubtedly desire for some stabilization or steadying if you're motion sick. Stabilization is frequently used to describe unstable entities, such as unstable political systems, unstable economic markets, or damaged constructions or buildings that result from a natural disaster like an earthquake.

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Answer:

All cells are surrounded by a cell membrane. The cell membrane is semipermeable, allowing some substances to pass into the cell and blocking others.

Explanation:

Answer:

c ) the height of radish seedlings is measured

Explanation:

The quantitative observation from the given choices is the height of the radish seedling measured.

Observation is one of the most important steps in the scientific method. It is usually carried out with our six senses. Also, observations can be made with very specialized equipment.

Taking note of color, odor, etc are all qualitative observations.

Quantitative observations are taken for measurements.

The best example of a living thing obtaining matter and energy is "A tree uses sunlight to make its own food through photosynthesis.

Living things or organisms obtain matter and energy for their life processes. Matter refers to the physical substance that is visible in a living organism. Energy refers to the ability to do work, which is essential for life processes. All living things require matter and energy to grow, reproduce, and maintain life.

A tree uses sunlight to produce its food through photosynthesis. Photosynthesis is the process by which plants convert light energy from the sun into chemical energy in the form of organic compounds. Plants can obtain energy from the sun and produce organic matter that they use for growth and repair.

Therefore, the sentence "A tree uses sunlight to make its own food through photosynthesis" is the best example of a living thing obtaining matter and energy.

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The decline of the cod supply in Atlantic Canada is the terrible problem being examined here. Government of Canada (2015) notes that large-scale cod fishing practised off the Atlantic coast of Canada since 1550.

The Maritime Environmental Council (MSC), which assesses fish stocks and confirms those that may tolerate greater fishing without severe harm, has recognised cod throughout the North Sea as sustainable.

There are fewer organisms from the U.S. stocks of cod in the Atlantic than the median for the previous 40 years as a result of heavy fishing pressure over the latter half of the 20th century. The quantity of young fish is a key indicator of rebuilding potential.

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Answer:

1)Invertebrates are known as creatures that do not have backbones. Even though these creatures do not have backbones, they have been uniquely designed in order to survive. According to studies, most of these creatures are found in the sea and one of them is the Star Fish or also called as the Sea Star. Starfish's functions and ability to survive is not the same like other animals which make them unique in a different way. The starfish's body is hard and bony for protection purposes and they exist in a variety of colors for camouflage. Their essential functions in order to survive are as follows:

-The Ability to Regenerate: Starfishes have the ability to grow damaged and lost limbs or even their entire body as long as the center part is still present and intact. And this is their way of reproduction as well.

-Having Tube Feet: Its arms are covered with a suction-like tiny cups of tube feet. This unique design of the starfishes enables them to move and secure themselves, especially on rocks and ocean floors.

-Unique Feeding Ability: Sea Stars don't have mouths nor teeth to ingest food. Rather, these creatures have the ability to push open or turn their stomachs out and digest its food. After digestion, their stomachs retract back to their bodies.  

-Vascular System: How starfishes survive does not rely on having hearts, brains and blood. Rather, they use the seawater. The seawater serves as the one the circulates inside the sea stars' bodies and this is when nutrients and oxygen are being transported and absorbed.

2)Keep in mind invertebrates are those who have exoskeletons (outside skeleton) or are hydrostatic (no skeleton). This make up 95% of all animals for example an ant or sponge. For a sponge, all it has is tissues that enable it to allow water to flow out the tops.  

Chordata are anything with vertebrates so a simple fish could suffice. THEY HAVE 4 SPECIFIC CHARACTERISTICS: 1.Notochord 2.Dorsal, hollow nerve cord 3.Pharyngeal slits 4.Muscual, an.al tail  

This is us, we have thumbs, and vertebrates.

3)The bipedalism of primates puts their heads on a higher elevation and this allows them to see predators or prey from afar hence giving them advantage. Opposable thumbs on the hand and feet allow primates to grasp and handle objects effectively hence are able to make use of tools for hunting and etcetera

Explanation:

Answer:

Yes, there are nuclear reactions constantly occurring in our bodies, but there are very few of them compared to the chemical reactions, and they do not affect our bodies much. ... Chemical reactions do not change the nuclear structure of any atoms. In contrast, nuclear reactions involve the transformation of atomic nuclei.

Explanation:

Answer:

yes

Explanation:

Answer:

false Isotopes. An isotope is one of two or more forms of the same chemical element. Different isotopes of an element have the same number of protons in the nucleus, giving them the same atomic number, but a different number of neutrons giving each elemental isotope a different atomic weight.

Explanation:

Answer:

Phenotypic ratio--> 9:3:3:1

Explanation:

Due to technical problems, you will find the complete answer and explanation in the attached files.

Ichthyosis is an X-linked recessive disorder then the probability is that there is a 50% chance of having sons with ichthyosis and a 50% chance of having daughters who are carriers. If he marries a healthy woman then none of the son will be affected but all the daughters will be carriers.

The type of inheritance manifested in the transmission of this character is X-linked recessive. It means that the gene responsible for ichthyosis is located on the X chromosome, and the trait is more commonly observed in males. Males only have one X chromosome, so if they inherit the affected X chromosome, they will express the disorder.

If the man with ichthyosis (XY) marries a woman who is not a carrier (XX), none of their sons will have ichthyosis, as they will receive the healthy X chromosome from their mother. However, all of their daughters will be carriers of the ichthyosis gene. If the man with ichthyosis (XY) marries a carrier woman (X(Xi)X), there is a 50% chance of having sons with ichthyosis and a 50% chance of having daughters who are carriers.

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