Which of these materials cannot cross the placenta from mother to fetus?
water
oxygen
alcohol
antibiotics
HIV virus
nicotine
nutrients
DNA​

Answers

Answer 1

Answer:

alcohol is the answer i think

Answer 2

Answer:

its not alcohol. i think it is dna because dna from the mother and father are givin at the time of the sperm fertilizing the egg


Related Questions

Scientific theories can be disproven or modified. True or false?

Answers

true. theories can be modified

Explain how physical and chemical properties influence the formation of ocean current and the distribution of marine life

False answers will be reported but if your answer is good I will give it brainliest.

Answers

Physical and chemical properties influence the formation of ocean current and the distribution of marine life through the different features present.

What is Marine life?

This is referred to as the animals, plants and other organisms which live in salt water sea and oceans.

Physical and chemical factors such as oxygen levels and light availability promotes the presence of of plants and animals as they are able to undergo photosynthesis and also respire thereby ensuring their increased growth and reproduction.

High ocean current also reduces the amount of organisms present in the marine life due to them being washed away to other parts and hindering their survival.

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Poop that is burned and used for energy is an example of...

a. Solar Power
b. Biomass
c. Wind Power
d. Hydro Power

Answers

Answer:

B. biomass

Explanation:

plz mark brainliest if correct.

What is
Age of fishes

Answers

Devonian is known as the “age of fishes”

But the average age of a fish is 3-5 years depending on the environment

how does an organism use the information in dna

Answers

DNA contains the instructions needed for an organism to develop, survive and reproduce. To carry out these functions, DNA sequences must be converted into messages that can be used to produce proteins, which are the complex molecules that do most of the work in our bodies.

Explanation:

DNA's instructions are used to make proteins in a two step process.

1st- Enzynes read the information in a DNA molecule and transcribe it into an intermediary molecule called messenger ribonucleic acid (mRNA).

2nd- Information contained in the mRNA molecule is translated into amino acids, which are the building blocks of proteins.

15. If a person feels pressure on her bladder, then she is experiencing -
o
A.)an external stimulus to stop drinking.
B.)an internal stimulus to drink more water.
C.)an external stimulus to release excess water.
D.)an internal stimulus to release waste.

Answers

D to release external waste.

Which of the following explains the role of plants in the carbon cycle?*
(1 Point)
Plants transfer oxygen and carbohydrates in the biosphere to carbon dioxide in the atmosphere.
Plants transport carbon dioxide in the atmosphere to groundwater.
Plants transfer carbon dioxide in the atmosphere to carbohydrates in the biosphere.
Plants transfer oxygen in the atmosphere to fossil fuels.

Answers

Answer:

Plants transfer carbon dioxide in the atmosphere to carbohydrates in the biosphere.

Explanation:

Plants are unique organisms being that they have the unique ability to manufacture their own food via the process of PHOTOSYNTHESIS. Hence, they are called AUTOTROPHIC. Photosynthesis is the metabolic process by which plant cells make sugar (glucose) in the presence of sunlight.

However, in the photosynthetic process, plants require inorganic source of carbon called CARBON DIOXIDE (CO2) and water to perform the process. The chemical overall reaction of photosynthesis is as follows:

6CO2 + 6H2O → C6H12O6 + 6O2

This explains the role of plants in the carbon cycle as they help transfer carbon dioxide (CO2) in the atmosphere to carbohydrates in the biosphere (living organisms).

Explain, using a named example, why many sex-linked diseases occur more frequently in men than women

Answers

Answer:

Because men have Y-chromosomes.

Explanation:

In women, the final chromosome is XX, but in men, it is XY. Because this Y gene is different, genetic disorders are typically linked to this chromosome. A mutation in the X chromosome is equally prevalent in the population, meaning that the Y chromosome makes a male more likely to have a disease because they are more likely to have a genetic disorder, due to having both an X and Y chromosome.

Which of the following is NOT true regarding taproots?
A. Allows for the transport of sugars up the plant through the xylem.

B. The main root that grows down vertically allowing plants to penetrate deep into the soil

C. An advantage for plants growing in dry soils

D. Support and anchor plant to the soil

Answers

Answer:

A

Explanation:

Which cricket got the mate in this comic?
A)The smartest and most resourceful.
B)The most attractive male.
C)The strongest singer.

Answers

Answer:

realistically

Its either

A)The smartest and most resourceful.

or

B)The most attractive male

as the singer would most likely get eaten

Explanation:

I it is most likely A tho so

{QUESTION}WHICH CRICKET GOT THE MATE IN THIS COMIC?{CHOICES}

A)THE SMARTEST AND MOST RESOURCE.

B)THE MOST ATTRACTIVE MALE.

C)THE STRONGER SINGER.

{ANSWER}

➡A)THE SMARTEST AND MOST RESOURCE.

#CARRY ON LEARNING

The study of the connection of the roles of different animal systems is called

Answers

The study of the connection of the roles of different animal systems is called Ecology

The connection between different animal systems is a part of ecology study, in which every animal plays a different role to balance the ecosystem.

What is ecology?

In the ecology study of the interaction between organisms and their abiotic environment, different animal systems play different roles.

In a particular ecosystem, every organism is dependent on others to maintain a balanced life which affects its surrounding environment.

An animal system is a group of animals in a particular habitat that describe a particular species interaction in which an organism interacts with its surrounding environment.

Therefore ecology is the study of connections between different animal systems.

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CAN SOMEONE PLEASE HELP ME WITH THIS SCIENCE QUESTION I WILL MARK YOU BRAINLIEST THANK YOU !!!

Answers

Answer:

Mercury :3

Explanation:

:3

why are myxozoans actually a bad example of supposed evolution in action?
(I will give the best answer brainiest and extra points)

Answers

Explanation:

Myxozoans (phylum Myxozoa) are metazoan parasites utilizing invertebrate and (mainly) aquatic vertebrate hosts. They have in common with cnidarians the possession of virtually identical, highly complex organelles, namely the polar capsules in myxozoan spores, serving for attachment to new hosts and the nematocysts in surface epithelia of cnidarians, serving for food capture. Although myxozoan spores are multicellular, the simple trophic body forms of almost all species, reduced to syncytial plasmodia or single cells, reveal no clues to myxozoan ancestry or phylogenetic relationships. The myxozoan genus Buddenbrockia is one of only two known genera belonging to a clade which diverged early in the evolution of the Myxozoa. Today the Myxozoa are represented by two classes, the Myxosporea, containing all the better-known genera, which alternate between fish and annelids, and the Malacosporea, containing Buddenbrockia and Tetracapsuloides, parasitising bryozoans. The latter genus also infects salmonid fish, causing proliferative kidney disease (PKD). The enigmatic Buddenbrockia has retained some of its ancestral features in a body wall of two cell layers and a worm-like shape, maintained by four longitudinally-running muscle blocks, similar to a gutless nematode and suggestive of a bilaterian ancestry. Although some analyses of 18S rDNA sequences tend towards a cnidarian (diploblast) affinity for myxozoans, the majority of these studies place them within, or sister to, the Bilateria. The latter view is supported by their possession of central class Hox genes, so far considered to be synapomorphic for Bilateria. The simple body form is, therefore, an extreme example of simplification due to parasitism. Various hypotheses for the occurrence of identical complex organelles (nematocysts and polar capsules) in diploblast and triploblast phyla are evaluated: common ancestry, convergent evolution, gene transfer and, especially, endosymbiosis. A theory of the evolution of their digenetic life cycles is proposed, with the invertebrate as primary host and secondary acquisition of the vertebrate host serving for asexual population increase.

FIRST CORRECT GETS BRAINLIEST AND 25 POINTS



_____________________: Would be considered a pure element because ___________________________________________________________________________________________________________________________________________________________.
_____________________: Would be considered a mixture of elements because ___________________________________________________________________________________________________________________________________________________________.
_____________________: Would be considered a mixture of compounds because ___________________________________________________________________________________________________________________________________________________________.
_____________________: Would be considered a mixture of only one type of compound because __________________________________________________________
_____________________________________________________________________________.

Answers

Answer:

E would be considered a pure element beacuse there's only one type of atom

B would be considered a mixture of elements because there is more than 3 elements

C would be considered a mixture of compounds because there is more than 2 compounds

A would be considered a mixture of only one type of compound because there are 2 different atoms joined together

Translocator is to ER as _____ is to lysosome

Answers

Answer:

man complete the questions

Organ systems work together to meet the needs of the human body. How is the skeletal system related to the nervous system?

Answers

Answer:

The Skeleton forms a framework for the body and the joints of the bones hold the muscles together.Hence the muscles can move when there's an impulse from the brain (through nervous system.)

What is Newton's third law of motion

Answers

Answer:

His third law states that for every action (force) in nature there is an equal and opposite reaction.

Explanation:

What does the water molecule do in the Lithosphere during the Water Cycle.

Answers

Answer:It's a process that happens on a molecular level when the molecules of water are really energized and rise into the air.

Explanation:

The water comes out of the atmosphere and makes it to the surface

Water moves from the ground or oceans into the atmosphere through a process called evaporation.

De
minor
The picture shows on ant infected with the fungus Cordyceps. An infected ant will move to an area that is favorable
for the growth of the fungus. The fungus will remain there while its mycelia replace the ant's tissues, causing death
and eventually releasing more spores that can Infect other ants.

Answers

Answer:

A

Explanation:

i just took test

They help regulate the population of the arthropods in the jungle.

What is Cordyceps?

A fungus called cordyceps is found in China's high mountain regions and feeds on specific caterpillars. It is occasionally employed as medication.

The majority of supplements use lab-made cordyceps. Despite the fact that cordyceps is occasionally referred to as a mushroom, the form of cordyceps created in a lab does not grow a mushroom.

By stimulating immune system cells and certain molecules, cordyceps may enhance immunity. In especially with lung or skin malignancies, it may also aid in the fight against cancer cells and reduce tumor size. Natural cordyceps can be pricey and difficult to get.

Therefore, They help regulate the population of the arthropods in the jungle.

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how does the digestive system interact with the musculoskeletal system

Answers

The muscular system allows for movement within the body, for example, during digestion or urination. Smooth muscles in the gastrointestinal or GI tract control digestion. The GI tract stretches from the mouth to the anus. Food moves through the digestive system with a wave-like motion called peristalsis.

Describe a situation in which a bacteria-free environment would be desirable: not desirable:

Answers

desirable: When observing bacteria

not desirable: When eating food.

Which organelle of a cell contains its DNA? a) Mitochondria b) Membrane c) Cytoplasm d) Nucleus​

Answers

Answer:

b po

Explanation:

kasi yan ang turo Ng teacher namin

Hope makatulobg

Which blood type would not be possible for children of a type AB mother and a type A father?
a. Type A
b. Type B
c. Type O
d. Type AB

Answers

Answer:

c. O

because no parent has o in their blood.

Explanation:

what are the five types of templements​

Answers

Answer:

Site templates.

Snippets.

Navigation templates.

App templates.

Form templates.

Explanation:

Explain how the genetic disease called Sickle Cell Anemia is more prevalent in African- Americans compared to other races because of the Malaria Disease.

Answers

Answer:

Explanation:

This is because sickle cell disease is common in malaria dorminated area because their traits confers resistance to malaria. The red blood cells, which contain abnormal hemoglobin become sickle in shape after it has been affected by malaria parasite. Therefore, most American that have African ancestry are at high risk of

the disease because the African ancestry are carriers if this gene and are inherited by the Americans.

The United States uses about _______. of the worlds energy

Answers

Answer:

Here you go!

17%

Explanation:

Demand. With less than 5% of the world's population, the U.S. consumes almost 17% of the world's energy and accounts for 15% of world GDP.

Have a great day!

farmer plants the same crop in a field year after year. Every year there are months during which the field is left without any plants. The former notices a decline in soil quality during these months. What causes this dech
soil quality ?

Answers

Answer: A

Explanation: I think..

What challenges do researchers trying to breed fungus-resistant Cavendish bananas face?

Answers

The two diseases currently attacking banana crops around the world are known as Black Sigatoka and Panama disease. Both are caused by fungi species which grow inside banana organs, draining away their nutrients or reducing their ability to photosynthesise. These fungal parasites slowly starve the banana to death.

Explanation:

1
What gas do plants take in from the air for photosynthesis? (6.L.1.2)

Carbon Dioxide

Oxygen

Helium

Hydrogen

1
What does the length of night or dark periods control in flowering plants? (6.L.1.1)

Reproduction

Flowering

Smell

Color

Answers

Answer: Plants take in Carbon Dioxide from the air.

Which one of the following requires the highest degree of metamorphism?
a. gneiss
b. shale
c. slate
d. schist

Answers

Answer: a. gneiss

Explanation:

Metamorphism can be defined as the synthesis or formation of minerals or rocks from the pre-existing rocks. This involves various physical and chemical processes. The physical processes include the application of heat and pressure. The chemical processes include the oxidation, reduction and other chemical reactions occurring within the rock. Gneiss is one of the highest grade of metamorphic rock. As it exhibit the coarsest grain size. Quartz, mica, and feldspar are the examples of gneiss.

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