Biology College

can someone please answer this question

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Answer 1

Answer:

D) Can simple organic molecules form spontaneously in an oxygen-free atmosphere?

Explanation:

Related Questions

pls help me with answers due today

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it's hard to read, can you crop out the rest so it's just the worksheet

PLEASE HELP TAKING TEST NOW!!!!!!!!!!!!!! Many animals influence and contribute to ecosystem services. As pollinators, how do bees ultimately contribute to direct ecosystem services? (1 point)
O Bees pollinate plant species that contribute to the carbon cycle.
O Bees pollinate plant species that humans admire in nature.
Bees pollinate plant species that produce oxygen that humans need.
O Bees pollinate plant species that produce food.

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Answer:

Explanation:

Many animals influence and contribute to ecosystem services. As pollinators, how do bees ultimately contribute to direct ecosystem services? (1 point)

O Bees pollinate plant species that contribute to the carbon cycle.

O Bees pollinate plant species that humans admire in nature.

Bees pollinate plant species that produce oxygen that humans need.

O Bees pollinate plant species that produce food.

Help me please!!!!!!!!!!!!!!!!!

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Answer:

Explanation:

I need help on this plzzz

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Answer:

they all stay but move 1 and 5 .. 1 goes to 4 and 5 goes to 1

Which of these are characteristics of herbaceous stems? (Select all that apply.)
A. don’t increase in diameter
B. more pliable
C. stiff
D. thin

Answers

Answer:

the characteristics of herbaceous stems are a, b, and d.

Explanation:

The herbaceous stems include that it does not rise in diameter, it should be more pliable, and thin.

What are herbaceous stems?

It is comprise of the vascular bundles that should be arranged in the circle across the vital role with respect to the spongy tissue that contain of cells that named should be parenchyma which is known as the pith. Moreover, it attributes include that there is no change in the diameter, also it is not stiff but thin.

Therefore, option a, b and d are correct.

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Why does the bronchioles get smaller and smaller before they reach the alveoli?

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Answer: Parasympathetic stimulation causes bronchoconstriction while sympathetic stimulation causes bronchodilation. During an asthma attack, the muscles that encircle the airway tighten or constrict, limiting the flow of air to and from the lungs.

Explanation: i hope this answers your question and i have a awesome marvelous day.

Answer:

In your lungs, the main airways (bronchi) branch off into smaller and smaller passageways -the smallest, called bronchioles lead to tiny air sacs (alveoli)

the bronchiole end in tiny air sacs called alveoli, where oxygen is transferred from the inhaled air to the blood, after absorbing oxygen, the blood leaves the lungs and is carried to the heart, the blood then is pumped through your body to provide oxygen to the cells of your tissues and organs.

which term describes a pure substance that made up of only one type of atom

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Answer:

Element

Explanation:

In chemistry, two substances are referred to as PURE SUBSTANCES. One of the pure substances is ELEMENT and the other is compound. An element is a pure substance that contains only one type of atom.

In an element, only one type of atom makes up the structure. For example, H2 (hydrogen) and O2 are examples of elements because they contain only hydrogen and oxygen atoms respectively

20. Which does NOT describe primary succession? *
O Decomposing organic matter forms soil
O Presence of existing fertile soil
O Long-term occurrence over extended time
Barren land once covered by glacier

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i think it is B because primary succession is something that can grow on rocks and exposed land. the answer is B because primary success doesn’t include soil where soil is incapable of sustaining life

Match the description with the appropriate clade.

a. Sheds outer cuticle, radial cleavage, schizocoelous formation, reduced cilia, triploblastic, bilateral symmetry
b. Triploblastic, bilateral symmetry
c. Segmented, trochophore larvae, spiral cleavage, schizocoelous coelom formation, triploblastic, bilateral symmetry
d. Metazoa lacking tissue level of organization
e. Diploblastic, radial symmetry, unique stinging cells (cnidocytes)
f. Sheds outer cuticle, radial cleavage, schizocoelous formation, reduced cilia, triploblastic, bilateral symmetry, segmented

1. Ecdysozoa
2. Bilateria
3. Annelida
4. Parazoa
5. Cnidaria
6. Arthropoda

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Answer:

Explanation:

13. Which of the following shows the correct relationship between warm
ocean water and its movement? *

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Answer: B

Explanation:

The following that shows the correct relationship between warm ocean water and its movement is:

A. The density increases and the movement rises

Warm ocean water is the condition in which the temperature of the ocean is warm. This in turn affects climatic conditions as it also has an effect on the marine ecosystem.

As a result of the temperature, warm water usually stays at the horizon of the ocean and when there is a joining of the cold water and the warm water, then there is a change in density as it increases while the movement of the water rises.

This phenomena occurs as a result of convection and the movement changes because warm water is less dense. The Indian Ocean is the warmest ocean in the world.

Therefore, the correct answer is option A

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Answer:

THE MATEMÁTICAS 163 por eso

Photosynthesis needs water and:

sunlight
chlorophyll
carbon dioxide
all of the above

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Answer:

All of the above is the answer.

Answer:

all of the above

Explanation:

Photosynthesis needs water and:

sunlight

chlorophyll

carbon dioxide

(all of the above)

A database is an efficient way to share information because it:
A. is often the most significant source of error in an experiment
B. provides the most precise measurement of a natural object.
C. can be searched quickly for the most relevant observations.
D. can evaluate the validity of a logical argument in a discussion.

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Answer:

C. can be searched quickly for the most relevant observations.

Can be searched quickly for the most relevant observations. Therefore, option (C) is correct.

What is a database?

A database is a collection of organized data that can be searched, updated, and analyzed to obtain specific information or insights. One of the main advantages of a database is that it allows for quick and efficient searching and retrieval of relevant information.

This is particularly useful for sharing information among multiple users, as it allows for easy access to the same data from different locations and at different times. While a database can be used to store a wide range of information, it is typically not used to evaluate the validity of a logical argument, measure natural objects, or identify sources of error in an experiment.

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which of the following is a function of the spleen?

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Answer:

Clearance of microorganisms and particulate antigens from the blood stream.

Synthesis of immunoglobulin G (IgG), properdin (an essential component of the alternate pathway of complement activation), and tuftsin (an immunostimulatory tetrapeptide)

Removal of abnormal red blood cells (RBCs)

Explanation:

What's muscles are affected?PLEASE ANSWER a-c

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Answer:

do it in your self hahahahahaa

A massive flood tears out many trees in a wooded area. What would you expect the area to look like a year later?
A.
A new species of trees will be about half grown.
B.
Grasses and weeds will be growing in the sunny areas.
C.
It will look exactly like it did before the flood.
D.
There will not be any plants growing the first year.

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The best answer is B, the reason why secondary succession happens much faster than primary succession is because the oil is already there, once the oil is there- with enough sunlight- grass and weeds will grow easily within the span of a year.

Answer:

Explanation:

Their movement will require the input of energy. That is option B.

What is an active transport?

An active transport is defined as the movement of molecules across the cell membrane from different compartments in the living organism.

The active transport makes use of energy because of the need to move molecules from a semi permeable membrane that is against a concentration gradient.

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Because they both have a nucleus but both of them do not have a cell wall

Which word best describes the feeding relationships in a food web?

a
Interconnected
b
Independent
c
Unrelated
d
Insignificant

Answers

Answer: a

Interconnected

Explanation:

The word that best describes the feeding relationships in a food web is "interconnected."

What is food web?

A food web is a complex network of interrelated food chains that shows the flow of energy and nutrients through an ecosystem. The organisms in a food web are connected to each other through predator-prey relationships, where some organisms are consumers and others are producers.

Each organism in the food web depends on other organisms for food, and their survival is interconnected with the survival of other organisms in the ecosystem. Therefore, the feeding relationships in a food web are highly interconnected.

The feeding relationships in a food web are highly interconnected, with each organism depending on others for survival. A food web is a dynamic system, and changes in one part of the web can have far-reaching effects on the rest of the ecosystem.

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Anna went to her physician complaining of fatigue and swelling in her legs. She explained the doctor that she exercises often and does not drink water. She also revealed that she is smoker. Doctor sad that she was dehydrated, had edema and probably hypoproteinemia (low plasma protein concentration). He ordered some blood tests and ECG. ECG revealed that she had atrial fibrillation, which he said might explain her fatigue. Doctor advised her perhaps exercise more moderately, drink water and that she should definitely stop smoking.

- How might a blood test help to diagnose the cause of Jessica’s fatigue and edema?
- How does her hypoproteinemia relate to her edema?
- How would dehydration influence blood volume, stroke volume, and cardiac output?
- What is atrial fibrillation, and how does it appear on an ECG?
- How might atrial fibrillation explain Anna’s fatigue?

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Tooooo much of a question

Too much of a question

During meiosis the cell replicates its DNA once, but divides twice. So each cell only ends up
with half the DNA.
MITOSIS
MEIOSIS
88
V3
1. Mitosis makes
daughter cells.
1. Meiosis makes
daughter cells.
chromosomes
2. Each daughter cell has
inside it.
2. Each daughter cell has chromosomes
in it, which is half of the parent cell.
3. Are the daughter cells identical to each
other?
3. Are all the daughter cells identical to each
other?

Answers

Explanation:

in mitosis the daughter cells are genetically identical to each other but in meiosis the daughter cells aren't identical, it has half of the chromosome of its parent cell unlike mitosis who have exactly same number of chromosome as it parent

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