Helpppp meeeeeee..............................

Answer:

The answer is B: Active Transport

Explanation: Because energy is required to move the sodium and potassium ions against the concentration gradient. Sodium ions are actively transported from the inside of the cell to the outside of the cell, even though there is a higher concentration of sodium ions on the outside.

Answer:

A. Pilus

Explanation:

Prokaryotic cell

pro

Answer:

Option A is correct

Explanation:

Given  

Pika are eaten by many animals of the grass land. The burrows of Pika are helpful in draining the ground water rapidly and the burrows also acts as nesting site for many bird species. Pikas consume grass and hence they are competitors of livestock animals.  

Removing Pikas from this ecosystem will destabilise the ecosystem as all the grass land predators will not get sufficient food. If Pika will not be there, then their burrows too will not exist and hence the excess ground water cannot be absorbed. Also the bird species will not be able to use burrows as nesting site.  

Hence, option A is correct  

Complete question:

Directions: Read the descriptions of the four islands presented in the lesson.

1. List two new traits that each new species of rat might demonstrate as it adapts to the conditions on each island.

2. Introduce one of the four new rat species to another island and describe one challenge it would encounter and one success as it adapts to its new environment

Island A:  

The island is fairly flat with an occasional hill. The ground is made of soft dirt, and several species of shrubs grow toward the center of the island. There is no animal life on land, but the water around the island is teeming with fish. The island is surrounded by a coral reef, and the shore is sandy with no algae growing on it. Freshwater is available.

The rat on Island A:

1.

2.

Island B:

This island has a rocky shoreline. Numerous tide pools dot the island along the shore where the wave action is somewhat sheltered by rocky outcrops. The tide pools host barnacles, abalone, sea urchins, and crabs. Algae grow all around the island; however, the growth of algae is quite sparse in the tide pools where the various animals feed. The current is quite strong along the rocky outcrops where the algae grow best. Freshwater is available.

The rat on Island B:

1.

2.

Island C:

The island is somewhat barren. A few species of cactus thrive on the bare rocks, and a large, cactus eating tortoise inhabits the island. A species of very large birds’ nests on the island annually. The birds build their nests on the rocks and protect their eggs from the sun by standing over the nests with outspread wings. The nests are always found on the windy side of the island, which is somewhat cooled by offshore breezes.

The rat on Island C:

1.

2.

Island D:

This island is an extinct volcano. Vegetation on the island changes as the altitude increases. Grasses grow at the base of the volcano, but farther up the volcano’s slope, the grasses give way to low shrubs. Halfway up, the island becomes quite lush; tropical plants and trees dominate the landscape. At this altitude, the island experiences frequent rain showers. Two species of birds inhabit the island. One is a raptor that preys on the smaller birds. The other fishes the waters approximately one mile offshore. Both of the bird species nest in trees.

The rat on Island D:

1.

2.

Answer:  

The rat on Island A:

1. Behavioural adaptation → Diurnal habits, as there are no predators that might attack them.      

2. Morphological adaptation → Flat feet to move on the sand and Long strong nails to dig in the soft dirt and reach the roots of the shrubs which are a nutritious source of food.

The rat on Island B:

1.  Morphological adaptation → Strong extremities to move along the rocky shoreline, to avoid sudden wave impacts, and handle to swim counter-current if they fall.

2. Morphological adaptation → Strong mandibles, well-developed masseteric and temporal muscles, and teeth adapted to feed on barnacles, abalone, sea urchins, and crabs.

The rat on Island C:

1.  Stress-induced → Reduced transpiration rate due to the limited water availability.

2. Behavioural adaptation →  Skills to compete for scars food with the tortoise avoiding its attack or presence.  

The rat on Island D:

1.  Morphological adaptation → Waterproof coat, due to the frequent rain showers.

2. Morphological adaptation → Vestigial nails, as they do not need them to get food.  

Introduction of a Rat from island C to island D.

Explanation:

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

Answer:

I think its vacuoles

Explanation:

Answer:

evaporation

condensation

condensed liquid water

rain

Explanation:

Answer:

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ʰᵒᵖᵉ ⁱᵗ ʰᵉˡᵖˢ

# ꧁❣ RainbowSalt2²2² ࿐

Answer:

[tex]1) \: nuclues[/tex]

[tex]2) \: cell[/tex]

[tex]3)tissue[/tex]

[tex]4) \: organ[/tex]

[tex]5) \: system[/tex]

[tex]6) \: animal[/tex]

i hope it helps

have a great day

#Captainpower

Answer:

c a letter c

Explanation:

follow me haha

Answer:

1) Alfred Wegener, in the first three decades of this century, and DuToit in the 1920s and 1930s gathered evidence that the continents had moved. They based their idea of continental drift on several lines of evidence: fit of the continents, paleoclimate indicators, truncated geologic features, and fossils.

Explanation:

Is this what you are looking for

Answer:

colder i think

Explanation:

........

Answer: Falso

Explanation: es falso porque monosacáridos son los mas sencillos

Answer:

A catalyst is a substance that can be added to a reaction to increase the reaction rate without getting consumed in the process. Catalysts typically speed up a reaction by reducing the activation energy or changing the reaction mechanism. Enzymes are proteins that act as catalysts in biochemical reactions.

Answer:

Explanation:

I believe why most living things do not leave fossils behind is most likely because they are decomposed before the fossils are covered by grouts and a predator might've eat them. The fossils are created when a plant or animal dies in a liquid environment and is covered by dirt.

Answer:

No; the frog is eating food as a whole, so its mode of feeding is swallowing

Answer:

Reduce amount of carbonate and dissolve calcium carbonate.

Explanation:

Ocean acidification can negatively affect marine life, causing organisms' shells and skeletons made from calcium carbonate to dissolve. ... Animals that produce calcium carbonate structures have to spend extra energy either repairing their damaged shells or thickening them to survive.

Ocean acidification will affect humans too! It will affect the food we eat since most of our shellfish requires calcium carbonate to form or to fortify their shells. Many of the fish we eat are also dependent on shelled animals for their food source, so the entire food chain is in jeopardy

Answer:

hi

Explanation:

Answer : They Do Move

Explanation : They settle into layers based mostly on their molecular weights. However, the Earth's atmosphere is much more expansive than a wine bottle. CO2 does not break down until about 80 kilometers from the Earth's surface, giving atmospheric gases a huge expanse to occupy.

Answer:

1. Support Small or Local Businesses

2. Pick Something Up for Your Neighbor

3. To encourage and motivated them

4. By donating blood and plasma

5.Make a donation

And most importantly take care of yourself then you can helps others.

#Stay safe # Stay home

Answer:

A hope this helps

Explanation:

Answer: A

Explanation:

As particles heat up, their kinetic energy increases. The particles in the box labeled X have larger tails, implying they have larger kinetic energy.

Answer:

1: mRNA

2: rRNA

3: tRNA

Explanation:

this may help you remember

m =messenger

r =Ribosome

t= transfer

Answer:

Ungulate population dynamics are influenced by multiple factors including ... Our weather hypotheses examined the influence of winter [28–30] and ... For example, increased temperatures and precipitation were related

Explanation:

Answer:

Living things use both to store energy.

Answer:A-G

Explanation:

What would best difference between Taiga and Tundra is C.Does the biome consist of deciduous trees.

Tundra ecosystems are ecosystem that doesn't posses trees which is found in the Arctic .

The taiga on the other hand isa forest of the cold, subarctic region.

Therefore, the difference between them is to check if there are trees especially deciduous trees.

Learn more about tundra at;

https://brainly.com/question/7640891

Answer:

AA-Dom, homogonous

TT-Dom, Homogonous

gg-recessive, homogonous

ss-recessive, homogonous

Ff-dom ,heterozygeoous

Ll- Dom, heterozygeoous

Pp- Dom, heterozygeoous

Explanation:

Homogonous pairs same genes (are the same ) , domminants are in capital letters and recessive are lowercase

heterozygeoous are mixtures a recessive and dominatn gene (capital and  lowercase )