Biology College

What are the biggest challenges to organisms in the tundra biome?
migrating to warm areas and finding food
surviving cold temperatures and finding trees to live in
surviving the cold temperatures and obtaining and keeping enough water
finding enough food and obtaining and keeping enough water

Answers

Answer 1

Answer:

Surviving cold temperatures and finding trees to live in

Explanation:

The major problems of tundra biome are oil, gas, mining industries

Answer 2

Answer:

surviving the cold temperatures and obtaining and keeping enough water

Explanation:

Related Questions

If a nerve cell stopped functioning, the cell would

Answers

Answer:

stop sending signals to the brain

Explanation:

explain the important of insects​

Answers

Answer: Insects create the biological foundation for all terrestrial ecosystems. They cycle nutrients, pollinate plants, disperse seeds, maintain soil structure and fertility, control populations of other organisms, and provide a major food source for other taxa


Facts about insects: Insects are pancrustacean hexapod invertebrates of the class Insecta. They are the largest group within the arthropod phylum. Insects have a chitinous exoskeleton, a three-part body, three pairs of jointed legs, compound eyes and one pair of antennae.

Describe the steps of a muscle contraction.

Answers

(1) A message travels from the nervous system to the muscular system, triggering chemical reactions.

(2) The chemical reactions lead to the muscle fibers reorganizing themselves in a way that shortens the muscle--that’s the contraction.

(3) When the nervous system signal is no longer present, the chemical process reverses, and the muscle fibers rearrange again and the muscle relaxes.

Which components can be found in all living organisms?


A. guanine and chlorophyll


b. nitrogen and iodine



c. adenine and cytosine


d. estrogen and testosterone

i need help plsssss

Answers

Answer:

oxygen, carbon, hydrogen, nitrogen, calcium and phosphorus.

Identify the 4 factors that cells vary by.​

Answers

Answer:

Different types of cells have different shape-shifting capabilities, depending on the specific function of that cell in the organism. Three general factors determine cell shape: the state of the cytoskeleton, the amount of water that is pumped into a cell, and the state of the cell wall.

Explanation:

If any questions, put them below.

If you have no questions, please have a great rest of your day/night!

Which of the following are functions of an animal's movement structures like wings, legs, or fins? Select the two correct
answers. (1 point)
identifying food
keeping out bacteria and viruses
migrating to mating spots
o escaping from predators
protection from elements

Answers

The legs, wings, or fins most of the time are used in locomotion and sometimes in defense.

These are two functions of an animal's movement structures like wings, legs, or fins:

migrating to mating spots escaping from predators.

These structures are like structural adaptation defenses. These structures might be for defense, movement and for obtaining resources which might include food.

Learn more about these structural adaptations: https://brainly.com/question/352589

Answer:

migrating and escaping predators

Explanation:

How do protozoa and algae differ?

Answers

algae makes their own food while protozoa just digest things

What is the inkiphalin command?​

Answers

Answer:

It's Enkephalins.

Enkephalins are small peptides that can serve as neurotransmitters in the brain. Enkephalins act to attenuate substance P release in the dorsal horn of the spinal cord and inhibit afferent pain fibers.

Briefly explain how DNA profiling is used to identify individuals.

Answers

A sample of DNA is taken from blood of saliva. PCR makes lots of copies, or amplifies the DNA. We then add restriction enzymes to cut the DNA at palindrome sequences. We then run the DNA through gel Elecrophoresis. Each person has unique short tandem repeats that cause a unique number of cuts by the restriction enzyme. These cuts are separated by size on gel electrophoresis, so no two people have the exact same pattern. We can compare individuals banding patterns to what is found at a crime scene, taken in previous samples, in a baby, and the sample that matches all the banding patterns will be the individual.

When Sam cut open an apple he found only four seeds. Can you explain why?

​

Answers

Answer:

Yes

Explanation:

it is depend on the fruit of apple

What type of cell is shown below?
Plant cell,egg cell,eukaryotic cell,prokaryotic cells?

Answers

Answer:

bacteria cell I think I'm probably wrong

Eukaryotic cell is the right answer

If the chloroplasts of a plant cell are damaged, which will it be unable to do?
a. protect the cell
C. excrete waste materials
b. make food for the cell
d. give instruction to the cell to reproduce​

Answers

Answer:

Make food for the cell

Explanation:

Since the purpose of the chloroplast is to create energy for the cell, should it be damaged it would lose its ability to do so.

Hopefully this is a better answer

Answer:

I believe it is b

Explanation:

Chloroplast help to produce food and uses the suns sun rays or energy given off of it to produce one it’s green color and it well the food

4. Which factors favor the exchange between blood and tissues?​

Answers

Answer:

The primary force driving fluid transport between the capillaries and tissues is hydrostatic pressure.

which can be defined as the pressure of any fluid enclosed in a space. Blood hydrostatic pressure is the force exerted by the blood confined within blood vessels or heart chambers.

The rate of exchange, In either direction, Is determined by physical factors : hydrostatic pressureb , oncotic pressure , And the physical nature of the barrier separating the blood and the interstitium of the tissue (Ex:- The permeability of the vessel wall).

Hope this helps !!

In cocker spaniels, solid color (S) is dominant over spotted (s). If a solid male is crossed with a spotted female and they produce all solid colored puppies, the genotypes of the parents must be:

Answers

Answer: the genotypes must be solid that is. if the male is a solid colored genotype

what is the difference between plant cell nd animal cell​

Answers

Plant cells have walls and chloroplasts while animal cells do not

A plant cell contains a cell wall and chloroplasts, while animals cells do not have these cellular structures.

Chloroplasts are organelles required to produce energy in the form of ATP and thus synthesize simple carbohydrates (e.g., glucose) by the process of photosynthesis.

Cell walls are cellular structures that help to support and shape plant cells.

Moreover, plant cells generally contain big vacuoles, whereas animal cells generally exhibit small vacuoles.

In conclusion, a plant cell contains a cell wall and chloroplasts, while animals cells do not have these cellular structures.

Learn more about plant cells and animal cells here:

https://brainly.com/question/560579

What is the relationship between resource use and the amount of waste produced?

Answers

Answer:

In recent years, the concept of the circular economy and related policies have tackled resource use, production, consumption and waste at a high level.

Explanation:

hope it helps a lil

WILL GIVE BRAINLEST Why do plants store some of the food they produce?
A. to live through periods when they already have too much food
B.to have tough structures for defense
C.to provide food for other plants
D.to survive periods when they cannot make enough food

Answers

Answer:

D is your answer

Explanation:

there are times when plats cant photosynthesis to make food. So they rely on their food storage so they don't die.

Animals do not have inner feelings that tell them when to eat.


True or False

Answers

Answer:

true

Explanation: because if they did then that would be crazy, its like how would they have feelings that tell them what to eat and what not to eat, yk what i mean? im sorry if this is wrong.

Which of the following correctly lists functions of
proteins?


Answers

Explanation:

The correct answer is providing structure, regulating cell processes and creating movement

what is the person's ultimate search in life? why?​

Answers

Answer: The ultimate purpose of life is to be at a higher positive frequency than negative, as you move through the vicissitudes of life, such that you feel content at the moment of death.

Contentment at the moment of death ensures that you reconnect to your positive soul self after death, review soul lessons, heal and recuperate.

If you are not content at the moment if death , you may get lost in an invisible maze of difficulties, as a spirit in a human form and gave a difficult after life & /or next life. .. To be content at the moment of death requires several years of training in detachment, meditation and positive thinking, through life.

Explanation:

what is the effect of atmospheric disturbances on stars

Answers

This the correct answer

Explanation:

However,when light enters the Earth's atmosphere,the different wind speeds distort the light waves,leading to distortions in the image of stars.The effects of the atmosphere can be modeled as rotating cells of air moving trubulently.

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Which statement below BEST summarizes the role of the DNA molecule in cells?

Answers

Answer:

It contains the genetic material

Why long cell easily go through the cell

Answers

Answer:

Cells divide for many reasons. For example, when you skin your knee, cells divide to replace old, dead, or damaged cells. Cells also divide so living things can grow. ... Organisms grow because cells are dividing to produce more and more cells

What is the type of cell show in the circle plant cell,prokaryote cell,eukaryotic cell,egg cell?

Answers

Prokaryotic, it has a flagellum and no nucleus.

25 points
Complete the sentence. Carbon flows between ____________, environmental storage centers that absorb and store carbon for long periods of time.

plants and animals
humans and air
rocks and soil
carbon sinks

Answers

Answer:carbon cycle

Explanation:

Answer:

it would be stored in plants in animals

Explanation:

those are one of our main sources of oxygen

Aluminum is mined from the ground. Recycling aluminum cans decreases the need for mining bauxite. Paper can also be recycled. How does recycling paper preserve trees?​

Answers

Answer:

Saving wood

Explanation:

It takes less water to break down waste paper than it does to break down wood. If paper recycling is used to the full potential, wood is only needed once to produce 5 cycles of paper which also means saving waste from landfill 5 times.

Calcite is created by combining:
a. calcium, carbon, and nitrogen
b. calcium, carbon, and oxygen
C. calcium, oxygen, and nitrogen
d. calcium, oxygen, and hydrogen
Please select the best answer from the choices provided
Ο Α
O B
O C
O D

Answers

Answer:

Calcite is created by B: Calcium, Carbon, and Oxygen

why are different leads are used to measure the ECG

Answers

Different leads are used to measure the ECG simply because each lead is recording the electrical activity of the heart from a different direction

Each individual lead's ECG recording is slightly different in shape. This is because when the electrical activity within the heart travels towards a lead you get a positive deflection.

Electrocardiogram

An electrocardiogram (ECG) is a simple test that can be used to check the heart's rhythm and electrical activity. Sensors attached to the skin are used to detect the electrical signals produced by your heart each time it beats

Electrocardiography

Electrocardiography is the process of producing an electrocardiogram, a recording of the heart's electrical activity.

Learn more about the heart electrocardiogram:

https://brainly.com/question/26064795

In which state elements occurs?​

Answers

An element is said to exist in free state if it does not combine with any other element. Rather, free state elements are stable even without combining.

I need help please ??!!!!!

Answers

Answer:

1: false

2: true

3: true

Explanation:

sorry if they wrong its on me if u use them tho

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