Lifeforms have changed throughout Earth's geologic history. Scientists learn about these changes by studying the fossil record. For example, scientists have learned when different groups of organisms first appeared. These events can be placed within specific periods on the geologic time scale, which is shown below.


Fishes with jaws first appeared during the Silurian period, and dinosaurs first appeared during the Triassic period. Large mammals first appeared after both dinosaurs and fishes with jaws.

Using this information and the geologic time scale above, choose the period in which large mammals first appeared.
A.
Permian
B.
Ordovician
C.
Tertiary
D.
Cambrian

Uniporter allows the movement of a subtance in one direction, symporter two molecules in the same sense and antiporter two in opposite sense. Nicotinic acetylcholine receptors are linked to symporters to allow the movement of neurotransmitters. G protein function is coupled to second messengers such as cyclic AMP, active transport allows the movement of substance again a concentration gradient and reuptake mechanism involves symporter transport.

The terms uniporter, symporter, and antiporter make reference to different types of channel proteins located in the cell membrane which allows the movement of molecules through this selectively permeable barrier.

Moreover, nicotinic acetylcholine receptors are receptors that bind to certain neurotransmitter chemical messengers such as acetylcholine in order to allow the movement of ions through the membrane.

Therefore, with this data, we can see that uniporter, symporter, and antiporter are different classes of channel proteins in regard to the movement of molecules in and out of a selectively permeable barrier (i.e. the cell membrane).

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Answer:

b)sedimentary rock layers

Explanation:

New York is composed of sediments that have metamorphed around 400 to 500 million years ago during the Acadian and Taconic orogenies.

Bedrock in the area of Binghamton, New York, consists of sedimentary rock layers. So, the correct option is B.

The formation of sedimentary rocks involves the accumulation or deposit of mineral and organic particles at the Earth's surface, following by cementation. The mechanisms that lead to the accumulation of these particles are collectively referred to as sedimentation.

Sediment refers to the little particles that make up sedimentary rocks and can be either geological detritus (nitrogen and phosphorus) or biological detritus (organic matter). Sandstone, limestone, and mud are examples of typical sedimentary rocks.

These rocks frequently begin as sediments that are transported by rivers, then are dumped in lakes and oceans. The sediments become dry and cement together to form rock when they are buried. Volcanic ash can be found in tuffaceous sandstones. Bedrock in the area of Binghamton, New York, consists of sedimentary rock layers.

Therefore, the correct option is B.

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Answer:

Regulation the transport of mmRNA to the cytoplasm

Explanation:

Canine teeth are not as useful as it is in animals while archaeopteryx has the character of both birds and reptiles.

The vestigial organs are those organs that have no apparent function in the body which means that the body can do without them.

Examples of vestigial organs in the body are:

The canine teeth is a type of teeth in mammalian dentition and is said to be vestigial because man can do without it.

Archaeopteryx are animals that has the characteristics of both birds and reptiles because it bears wings like birds and has hands it uses to crawl like a reptile.

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Answer:

1,750 cubic feet

Explanation:

I did the math. I believe that is it <3

Answer:

Shrink

Explanation:

The cells will shrink because they lose water by osmosis.

A fishing practice that is commonly used to catch large solitary species of fish is referred to as Long line fishing.

This practice involves the use of a long main line attached to several hooks at various intervals.

This helps to catch large solitary species of fish and was featured in The Perfect Storm.

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Phagocytosis is the innate immune functions provide immediate protection from foreign antigens.

Phagocytosis is a process that take place in cells of organisms in which the cell ingest and eliminate particles like microorganisms, foreign substances, and apoptotic cells. Phagocytosis is found in many types of cells .

Therefore, Phagocytosis is the innate immune functions provide immediate protection from foreign antigens.

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Answer: Each pair of chromosomes consists of two chromosomes that are similar in size and shape. They contain the same genes at the same loci, though they may have different alleles. These pairs of chromosomes are known as homologous chromosomes or homologs.

Explanation:

Answer:

Test/Back Cross ( a method used to determine the unknown genotype of organsm by crossing it with recessive phenotype)

Answer:

[tex]beinggreat78~here~to~help![/tex]

The term is called a test-cross. This method is used to determine the genotype of someone whose genotype is unknown. For instance, we can see the person's eye color, which is Hazel, but we cannot identify which genotype they have because they have mixed eye colors. You would have to test or back cross to discover their genotype.

Mass selection is considered a form of selective breeding because it includes selection of individuals from a large group organisms.

Mass selection is defined as a type of selective breeding in which two species are chosed and breeded with one another. This process is used to get the desired characteristic organism.

So we can conclude that mass selection is considered a form of selective breeding because it includes selection of individuals from a large group organisms.

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Answer:

vestibulocochlear nerve

Explanation:

The Vestibulocochlear nerve( V||| cranial nerve) should be tested in a person who is having trouble balancing while walking.

The Vestibulocochlear nerve has two components within a single trunk: the vestibular nerve, which innervates the semicircular canals of the inner ear and is involved with equilibrium, coordination, and orientation in space, and the cochlear nerve, which innervates the cochlea and subserves hearing.

Dysfunction of the vestibular system results invertigo, the sensation of environmental motion. On examination, patients with vestibular nerve dysfunction typically have nystagmus, in which the fast component is directed away from the affected nerve. With their arms outstretched and eyes closed, their limbs tend to drift toward the injured side.

Functions of vestibulocochlear nerve:

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so that offsprings can inherit half traits from the mother and half traits from the mother.

Explanation:

one chromosome is of the mother and one for the father

Plasmolysis of bacteria in foods occurs when high concentrations of salt or sugar are added to the foods creating a hypertonic environment.

To complete the blanks, read carefully both the poem and the story and then analyze the interaction between the characters.

A story is written in the most traditional writing form; while the poem is written in verses. Moreover, stories are likely to include more descriptions and narrative details, while poems often use elements such as metaphors, similes, etc.

This question requires you to identify the relationship between the narrator and sis, and Joseph and Megan to do this:

Note: This question is incomplete because the story and poem are missing; due to this, I answered them based on general knowledge.

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Answer:

A or B

Explanation:

What ever is right under the snake in the food chain.

Explanation:

Its levels are controlled by negative feedback. The hypothalamus and pituitary gland have important roles in detecting and controlling thyroxine levels. Low thyroxine levels in the bloodstream stimulate the hypothalamus to release TRH and this causes the pituitary to release TSH so the thyroid releases more thyroxine.

Answer:

Explanation:

1, What are the 2 biomes that experience all four seasons?

Tropical forests are warm, humid, and found close to the equator. Temperate forests are found at higher latitudes and experience all four seasons. Boreal forests are found at even higher latitudes, and have the coldest and driest climate, where precipitation occurs primarily in the form of snow

After an exposure of the cells to high-energy radiation many newly reproduced cells appear different due to mutation.

Mutation occurs in cells when the change or damage of deoxyribonucleic acid in the cell brings about alterations in the genetic makeup of the organism.

Mutation of genetic material is caused by environmental factors called mutagens.

Examples of mutagens include:

X-ray is an example of electromagnetic wave that possess high-energy radiation.

Therefore, after an exposure of the cells to high-energy radiation many newly reproduced cells appear different due to mutation.

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Answer:

RED and BLUE

Explanation:

Special pigments in chloroplasts of plant cells absorb the energy of certain wavelengths of light, causing a molecular chain reaction known as the light-dependent reactions of photosynthesis. The best wavelengths of visible light for photosynthesis fall within the blue range (425–450 nm) and red range (600–700 nm).

Red and blue as the best wavelengths of visible light for photosynthesis fall within the blue range (425–450 nm) and red range (600–700 nm).

Chlorophyll is the pigment responsible for photosynthesis. It absorbs most energy from wavelengths of violet-blue and orange-red light.

The chlorophyll pigments mainly absorb blue and red light. Maximum absorption is in blue light but maximum photosynthesis occurs in red light

Thus, the answer is red and blue.

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Answer: In the lysogenic cycle, the viral DNA is replicated, and the host cell isn't destroyed.

Answer: Lactose is a disaccharide

Explanation:

Answer:

By people stepping on the little bugs, it kills them. and when they are born some will die and others won't

Explanation:

The cartoon refers to the principle of natural selection, which operates in many species, including bugs.

When individuals of a species reproduce, their offspring inherit certain traits or characteristics that can be advantageous or disadvantageous. In the case of bugs, some may have stronger exoskeletons, faster reflexes, or better camouflage, which can help them survive being stepped on or avoid being noticed by predators.

As a result, those bugs with advantageous traits are more likely to survive and reproduce, passing on their favourable characteristics to the next generation, while those without these traits are more likely to die. This is an example of natural selction.

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The idea of it is that if an organism changes during life in order to adapt to its environment, those changes are passed on to its offspring. However, that isn't the case (proved by Darwin). This theory was made by Jean Baptiste Lamarck.

Answer:

I'm assuming this means concentrations of the atmosphere*

Explanation:

Carbon dioxide are both considered greenhouse gasses. This means whenever they are in the atmosphere, they absorb heat from the sun and trap it within the atmosphere. In general, greenhouse gasses are a good thing. They trap heat in the Earth during nighttime so we do not freeze when we don't have the sun. However, since the Industrial revolution, the overuse of fossil fuels which are made of carbon and sometimes have high methane concentrations have lead to an excess amount of these gasses in our atmosphere. If concentrations become too high, the Earth's climate will continue to display higher average temperatures, leading to a complete change in our environments as once glacial areas will begin to display more temperate climates, and temperate and warm climates will become even hotter. Ecosystems in every area will be severely damaged, with many species likely facing extinction. Additionally, sea levels will rise much higher, both due to the melting of glaciers into the ocean and also because warmer climates will make the ocean warmer, meaning the molecules of water will spread farther apart and increase the volume of the ocean.

The answer is Genotype.

What is Genotype?-

A phenotype is an individual's observable traits, such as height, eye color, and blood type. The genetic contribution to the phenotype is called the genotype. Some traits are largely determined by the genotype, while other traits are largely determined by environmental factors.

Answer:

oxytocin - Billie

Explanation:

Answer:

Rocks deteriorating the ocean floor

Explanation:

As rocks scrape past the ocean floor they chip away at it smoothing it (erosion) out but due to continental drift and magma rising and cooling it causes the new igneous rock forms on the ocean floor making it rough and rugged.

When thinking about this think about a pebble on the beach, what it is?

rounded due to erosion just as scientists thought the ocean floor would be.