which of these characteristics of all three main groups of worms? check all that apply

a. they lack nerve cells

b. they can reproduce sexually

c. they display bilateral symmetry

d. they have a single tissue layer

e. they are invertebrates

PLEASE HELP ASAP IM TIMED

Answers

Answer 1
The answer to this question is B.
Answer 2

B, C, and E.

Brainiest if correct? Thanks!


Related Questions

Unzips the DNA strand by breaking hydrogen bonds

Answers

HELICASES unzips the dna at the beggening of replication to then break the hydrogen bonds

Which of the following processes cycles matter through different parts of an ecosystem?
More than one answer may be correct.
1. the nitrogen cycle
2. the water cycle
3. the carbon cycle

Answers

Answer:

the nitrogen cycle, the water cycle, and the carbon cycle

Explanation:

The water, carbon, and nitrogen cycles move nutrients through the different parts of an ecosystem. Water moves through organisms and the environment in different phases. Carbon moves through an ecosystem in carbon dioxide, minerals, and organic compounds. Nitrogen moves through an ecosystem in nitrogen gas, ammonium, nitrates, and organic compounds.

The biogeochemical cycle is a pathway that circulates the chemicals through the abiotic and the biotic factor. The nitrogen, water, and carbon cycle through various regions of an ecosystem.

What is a biogeochemical cycle?

The biogeochemical cycle is the movement of the chemicals and compounds of carbon, nitrogen, and water in the biosphere (biotic) and the atmosphere, lithosphere, and hydrosphere (abiotic) spheres of the earth.

These cycles move the nutrient through different spheres in the form of inorganic and organic compounds. It is an essential part of the ecosystem as they regulate the flow of the natural elements.

Therefore, option 1. nitrogen cycle, option 2. water cycle, and option 3. carbon cycle move through various parts of an ecosystem.

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1. Why is it important to have some access to water?

2. What physical and social factors can contribute to making water unte?

3. Why is it not safe to drink the water in the Attowopikat First Nation community

4. What would be sustainable solution to the problem of unsafe drinking water in Attawapiskat?

Answers

Answer:

1.Water is obviously essential for hydration and for food production—but sanitation is an equally important, and complementary, use of water.

2.Sedimentation.

Runoff.

Erosion.

Dissolved oxygen.

3.Ontario First Nation of Attawapiskat isn't safe. It has high levels of a chemical byproduct produced by the chlorination process in the community's ailing water plant that needs millions of dollars in repairs.

4.Boiling. This is a reliable way to purify water.

Use of Iodine solution, tablets or crystals. This is an effective and more convenient method. ...

Use chlorine drops. Chlorine has the ability to kill bacteria in water. ...

Use water filter. ...

Use Ultraviolet Light.

Which way the
Arrows go

Answers

Answer:

well, I know the answer for 1)

Divergent- <- -> convergent- -><- and Transform- the up and down one

Explanation:

Which of the following are sources of extra nutrients that can cause algae to overgrow in water due to HUMAN activity? CAREFULLY select all options that apply. List the answers.


dissolved oxygen in water

treated waste water

viruses

combined sewage overflow (CSO)

fertilizers

cleaning products

dog poop on the streets of NYC

water running over rocks


(This is 7th grade science)

Answers

I’m not sure about the rest but I think Dog poop is one

please help meeeeeeeeeee

Answers

Answer:

D

Explanation:

D like the person above

Light-dependent and light-independent reactions occur at the same time. True or False

Answers

true  because they are driven by the ATP made by the light-dependent reactions. Both systems shut down in the dark. The light-independent reactions can last a little longer if there is ATP remaining in the chloroplast.

Which component of a galaxy consists of tiny particles that look smoky or cloudy and can be found in the space between stars? A) Gas B) Stars C) Dust D)Sun

Answers

Answer: Gas

Explanation:

Look through the lesson lol i know your school

Nebulae are different luminous regions of the interstellar medium that can be made up of cosmic dust as well as ionized, neutral, or molecular hydrogen, hence option C is correct.

What is dust?

All the stuff between stars is referred to as interstellar matter by astronomers, and the complete collection of interstellar matter is referred to as the interstellar medium (ISM). Some interstellar material is gathered into massive clouds that are each referred to as a nebula.

Tiny pieces of solid matter drifting about in the region between stars make up cosmic dust. It's not like the dust you find in your home; instead, it has tiny particles that range in size from collections of just a few molecules to grains that are 0.1 mm in size.

Therefore, an interstellar medium can be made up of cosmic dust as well as ionized, neutral, or molecular hydrogen, hence option C is correct.

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⚠️Second time posting this⚠️
Geneticists use Punnett Squares to show all the possible outcomes of a genetic cross and to determine the probability of a particular outcome.
True
or
false

Answers

Answer:

True

Explanation:

Scientists only use punnet squares if they want to determine what the possible outcomes will be for the offspring.

Hope this helps, if it is wrong, I am sorry. T^T

Answer:

   true

Explanation:

Select the correct answer
Linda owns a great deal of land. She decides to rent her land to Andrea. However, she places certain restrictions on Andrea regarding the land use. Linda is using
which rights?
ОА. .
use rights
OB.
alienation rights
OC. management rights
OD. ownership rights

Help need answer ASAP !!

Answers

Management rights.

_______________________

I'll give you a cookie if answered

Answers

Answer:

a mutation

Explanation:

becaus ethere are diffrent traits wich would be a mutation im in middle school i learned this is 2 so trust me.

Answer:

variation

Explanation:

Any difference between individual organisms or groups of organisms of any species caused either by genetic difference or by the effect of environmental factors is called variation. Variation is observed in physical appearance, metabolism, behavior, learning and mental ability, and other visible characters of an individual.

Which organelles digest waste materials and worn out organelles?
O cell membrane
O chloroplast
nucleus
O lysosome
cell wall
O cytoplasm
mitochondria
O vacuole

Answers

Answer:

Lysosomes

Explanation:

break down food molecules, waste products, and old cells.

What abiotic factors might affect a population of fish? Check ALL that apply.

clear water
light
temperature
food

Answers

Answer:

Clear water, light, and tempature.

Explanation:

What is osmoregulation?

Answers

Answer:

adalah penghijauwan kota

Osmoregulation is the active regulation of the osmotic pressure of an organism's body fluids, detected by osmoreceptors, to maintain the homeostasis of the organism's water content; that is, it maintains the fluid balance and the concentration of electrolytes (salts in solution which in this case is represented by body fluid) to keep the body fluids from becoming too diluted or concentrated. Osmotic pressure is a measure of the tendency of water to move into one solution from another by osmosis.[1] The higher the osmotic pressure of a solution, the more water tends to move into it. Pressure must be exerted on the hypertonic side of a selectively permeable membrane to prevent diffusion of water by osmosis from the side containing pure water.

Organisms in aquatic and terrestrial environments must maintain the right concentration of solutes and amount of water in their body fluids; this involves excretion (getting rid of metabolic nitrogen wastes and other substances such as hormones that would be toxic if allowed to accumulate in the blood) through organs such as the skin and the kidneys.


1. How is natural selection related to the process of evolution?

Answers

Answer:

Natural selection is related to the process of evolution because It is one of the processes that drives change and helps to clarify the diversity of life on Earth.

Explanation:

Hope that helps

What are some examples of nutrients that
circulate in blood? Check all that apply.
red blood cells
glucose (a simple sugar)
amino acids

fats

white blood cells

Answers

the answer would be all of them but fats so the top person is correct:)))

Write down important details about the immune system

Answers

Answer:

lungs,heart, stomach, and livers

Explanation:

I thinks what an immune system is

Answer:

important details about the immune system : it protects organisms from diseases, it can be self-distructive, white cells make your immune system work , and sleepless night hurt your immune system

Explanation:

If the process of meiosis shown to the right proceeds
normally, how many
chromosomes will cells A, B, C, and D have?
B

Answers

Answer:

If I’m correct it’s 15

Explanation:

During which phase of mitosis do the chromosomes pull away from the middle of the cell?

Answers

In Anaphase of mitosis chromosomes pull away from the middle of the cell.

During this period the replicated chromosomes are split and moved to the opposite poles of the cells.

What is mitosis?

It is the process by which cell replicates its chromosomes and then segregates them, producing two identical nuclei in preparation for cell division.

What are chromosomes?

It is along DNA molecule with part or all of the genetic material of an organisms.

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Which of the following provides the best summary of the process of natural
selection?
A. Populations become better adapted to their environment.
B. Individuals pass on their best traits to their offspring.
C. Individuals always change in response to their environment.
D. Population sizes increase with every generation.
SUBMI

Answers

Answer:

c

Explanation:

A cactus with the genotype Kkww is crossed with a cactus with the genotype KKWw. Which of the following genotypes will be shared by 25% of the offspring?
A. KKWW
B. kkWw
C. KKww
D. KkWW

Answers

Answer: C

Explanation: Think of it this way, which ever has the most is what answer would be. So they come across 3 capitals with K its gonna be KK not kk.

Hope this helps

The genotype is defined as the genetic makeup of an organism, or the set of alleles. The cross between Kkww and KKWw will result in 25% of the progeny having genotype KKww.

The correct option is:

Option C. KKww

Find the attachment for the Punnett square, given below.

The cross between Kkww and KKWw will result in the gametes as:

Kkww - Kw, Kw, kw, kwKKWw - KW, Kw, Kw, kw

The progeny having genotype as KKww will be 4 or 25%.

Therefore, Option C is correct.

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Identify the labeled structures.
A: B: C: D: E:
The multiple questions are the same for each question. Please help!

Answers

Answer:

e cell wall that is the only one I am sure of because I can hardly see the rest

What molecule do organisms obtain energy from

DNA
ADP
Sugar
ATP
All the above.

Answers

Organisms mainly use the molecules glucose and ATP for energy. Glucose is a compact, stable form of energy that is carried in the blood and taken up by cells. ATP contains less energy and is used to power cell processes. The flow of energy through living things begins with photosynthesis, which creates glucose.
Answer:
ATP

Explanation: as the other person said they mainly use glucose or ATP for energy. Adenosine triphosphate (ATP) is the source of energy for use and storage at the cellular level. The structure of ATP is a nucleoside triphosphate, consisting of a nitrogenous base (adenine), a ribose sugar, and three serially bonded phosphate groups.

I hope this helped !

True or False.
The lymphatic and immune systems contain the lymphatic vessels and ducts, lymph nodes, bone marrow, and spleen.

Answers

Answer:

True

Explanation:

I also like your profile picture

The lymphatic system consists of  lymphatic vessels and ducts, lymph nodes, and spleen. The immune systems consist of bone marrow. Hence, statement true.

What is immune system?

The system that helps to fight infections and diseases with the help complex system of tissues, cells, organs is called as immune system.

In humans, immunity is of 3 types including:

adaptive immunity- natural immunityinnate immunity- develops throughout lifepassive immunity- borrowed from any source that doesn't last long.

Bone marrow and the thymus are primary parts of the immune system. Bone marrow play significant role in production of blood cells including B and T lymphocytes. In also includes organs of lymph system such as lymph node, thymus, spleen, tonsils, lymph node, and lymph vessels.

Therefore, The statement above is true.  

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What are the advantages and disadvantages to produce few offspring that are extensively cared for and protected?

Answers

Advantages: Since they’re well cared for, they will grow up to be strong and hopefully produce healthy offspring.
Disadvantages: Fewer of them means that when one is lost, it will have a greater effect on the group. They also cannot reproduce as quickly as if they had lots of offspring.

You want to make 1 ton ration of an 18% protein ration using corn (12%) and soybean meal (22%). How much of each will he have to mix together? Show your work for full credit.

Answers

Answer:

To make a 1 ton ration of an 18% protein ration using corn (12%) and soybean meal (22%), 0.6 tons of soybean meal and 0.4 tons of corn are needed

Explanation:

Using the Pearson’s Square calculations:

1. Subtract across the diagonal:

a. 18% - 12% = 6 parts soybean meal

b. 18% - 22% = 4 parts corn

2. Sum the parts:

a. 6 parts soybean meal + 4 parts corn = 10 totalparts

3. Divide each part by the total to calculate the percentage of each feed to include in the ration:

a. 6 parts soybean meal ÷ 10 total parts * 100 = 60.0% soybean meal

b. 4 parts corn ÷ 10 total parts * 100 = 40.0% corn

So, to make 1 ton ration of an 18% protein ration using corn (12%) and soybean meal (22%),

60% of soybean meal is needed = 60/100 * 1 ton = 0.6 tons of soybean meal

40% of corn is needed = 40/100 * 1 ton = 0.4 tons of corn

The purpose of the control is to ..?

Answers

The control group is used as the constant variable

What is the function of Primase?

Answers

Answer:

Explanation:

"Primase is an enzyme that synthesizes RNA sequences called primers.  primase produces RNA molecules, the enzyme is a type of RNA polymerase."

Hope this helps :)

23. Which of the below names is not a type of biologist?
a) paleontologist
b) botanist
I
c) zoologist
d) astrophysicist
BA

Answers

Answer:

D

explanation: it literally has physics in its name

Is a chicken egg biotic (living) or abiotic (non-living)? *
biotic (living)
abiotic (non-living)

Answers

Answer:

its biotic

Explanation:

Chicken egg is biotic.

What are biotic or abiotic components?

Biotic components are living organisms while abiotic components are nonliving organisms. All biotic components are living components of ecosystem. Bacteria and birds, animals  are living components.

Abiotic components are non living components. sunlight, water and temperature are the non living components. Biotic factors are producers, herbivores and omnivores.

Abiotic components are physical and chemical components that act on the living components. In chicken cell the yolk which is living cells.

Biotic components also include the waste from living things and dead organisms. Earth have many biotic components. The surface of Mars has no biotic components.

Therefore, Chicken egg is biotic.

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