Answer:
Most of the fetus will be born in the 40 weeks of pregnancy, but really can accurately only about 5% of babies born in due two weeks in advance or delay two weeks are normal.
Explanation:
Which is the most highly sensitive time within the developing embryo for the risk of malformation related to environmental teratogens
The most highly sensitive time within the developing embryo for the risk of malformation related to environmental teratogens is cleft palate at 8 weeks gestation. It is an opening in the roof of the mouth.
A teratogen is any substance and/or physical agent that may cause an irreversible abnormality in the structure of the developing embryo or fetus (e.g., classical pesticides such as DDT).
Cleft palate is a malformation mainly caused by mutagenic agents (teratogens) during pregnancy, which affects approximately one (1) of 650 births.
A cleft palate is a malformation that occurs when the two plates of the skull that form the roof of the mouth cannot be completely joined.
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Based on cell theory, which of these answer choices would describe one reason a virus is considered nonliving?
Answer: Viruses are complicated assemblies of molecules, including proteins, nucleic acids, lipids, and carbohydrates, but on their own they can do nothing until they enter a living cell. Without cells, viruses would not be able to multiply. Therefore, viruses are not living things.
which solution is hypertonic
both
neither
the inside of the cell
the beaker
Answer:
the beaker
Explanation:
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Currents at the surface of the ocean, like those in El Niño are moved mainly by
O heat
O wind
O salinity
O the mixing of warm and cold water
Answer: winds
Explanation:
Explain why bacteria and archaea are prokaryotic cells and all other organisms are eukaryotic cells
Answer:
Archaea and bacterial cells lack organelles or other internal membrane-bound structures. Therefore, unlike eukaryotes, archaea and bacteria do not have a nucleus separating their genetic material from the rest of the cell.
Explanation:
6. Which objects are listed in order of scale from smallest to largest?
Sun, red giant, Earth, galaxy
red giant, Sun, galaxy, Earth
Earth, Sun, red giant, galaxy
galaxy, Earth, Sun, red giant
Which paired structures of the male reproductive system lie at the base of the bladder and connect to the vas deferens via a duct
What diagnostic test is useful for detecting hyperactivity of the thyroid gland during an evaluation of a thyroid disorder
Answer:
Blood tests that measure thyroxine and thyroid-stimulating hormone (TSH) can confirm the diagnosis. High levels of thyroxine and low or nonexistent amounts of TSH indicate an overactive thyroid. The amount of TSH is important because it's the hormone that signals your thyroid gland to produce more thyroxine
Explanation:
define work , in short answers
A) What structures form the male part of the flower
B) What structures form the female part of a flower
C) how do male gametes find female gametes in a flower ?describe with de
Answer:
a - The androecium
b - the pistil
c - Male gametes is the pollen and it find the female gamete by wind, pollenators, and water.
Explanation:
This is a question on the circulatory system. I don't understand how the pathway that the blood goes through in the heart makes it oxygenated. Could someone pleas explain to me what each part does and how when it goes to the lungs it gets oxygenated?
Answer:
deoxygenated blood is pumped back to the heart with the superior vena cava and inferior vena cava. Blood is then in the right atrium then it is pushed to the right ventricle in the heart. it is the pumped through the pulmonary artery to the lungs(the pulmonary artery is the only artery that carries deoxygenated blood). In the lungs blood is pumped to the cappilleries in the bronchus where oxygen in the air is passed through to the blood with heamoglobin and thus now the blood is oxygenated. The blood is the pumped brought back to the heart with the pulmonary vein(the pulmonary vein is the only vein to carry oxygenated blood).It flows into the left atrium where it is then pushed down into the left ventricle and is then pumped up through the aorta to the whole body.
Explanation:
I hope this explains what you asked.
what unwinds DNA molecule
Answer:
DNA helicases unwind DNA during DNA replication
Explanation:
Hope this helps!
Which of the following is released during cellular respiration?
Carbon dioxide
Glucose
Mitochondria
Oxygen
Answer:
carbon dioxide ( CO2 ) is released during cellular respiration
Answer:
Carbon dioxide
Explanation:
Modern scientists can splice DNA from different species together to produce what is referred to as ______ DNA.
Answer
Recombinant DNA. a genetic material that has been spliced together from multiple types of organisms. Transgenic organism. an individual that receives recombinant DNA
Explanation:pa brainliest asnwer po
what structures do human epithelial cells have in common with elodea cells
Answer:
They both have a cell membrane,nucleus and cytoplasm.
Explanation:
Can you please help me
I am here to give the brainiest answer not to get points
Answer: yes
cytochrome c is a protein found in all species, and functions in energy metabolism. the more closely related two different species are,
The more closely related two different species are, the more alike their cytochrome C amino acid sequences are. The cytochrome C is an evolutionarily conserved protein.
The cytochrome C is an evolutionarily conserved protein involved in cellular respiration.
The cytochrome C is a carrier of electrons that acts during the oxidative phosphorylation stage of cellular respiration.
This protein is evolutionarily conserved in species whose cells generate ATP in anaerobic (oxygen presence) conditions, which means that generally synonymous mutations are observed when comparing the amino acids of this protein.
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how long does it take for a body to decompose to a skeleton
Answer:
In a temperate climate, it usually requires three weeks to several years for a body to completely decompose into a skeleton, depending on factors such as temperature, humidity, presence of insects, and submergence in a substrate such as water.
Explanation:
Which membrane component is a glycoprotein?
ОА
ОD
ОB
ОC
OA
Carbohydrates. Carbohydrates are the third major component of plasma membranes. In general, they are found on the outside surface of cells and are bound either to proteins (forming glycoproteins) or to lipids (forming glycolipids).
who was the first person to see cells under a microscope
Which organism are part of every foodchain
Producers, also known as autotrophs, make their own food. They make up the first level of every food chain. Autotrophs are usually plants or one-celled organisms. Nearly all autotrophs use a process called photosynthesis to create “food” (a nutrient called glucose) from sunlight, carbon dioxide, and water.
Can i ask u a questions
how to get more quesBrainliest me dear :)
What is released by fat cells to signal that the body has had enough to eat, and also influences BMR
How do consumers obtain energy and nutrients?
how do consumers obtain energy and nutrients
Answer:
They eat
Explanation:
Consume-er
Answer:
by eating other organisms.
hope this is right. Let me know:)
Explanation:
3. How are the long DNA molecules found in eukaryotes packed into short chromosomes?
Explanation:
DNA is tightly wound around histones,forming nucleosomes. Nucleosomes are tightly coiled and supercoiled to form chromosomes.
Matter that is made of only one kind of atom is called what?
Atom
Compound
Element
Molecule
Which chromosome pair shows gender?
1
15
22
23
Answer:
23
Explanation:
Which organelle is the control center of the cell; contains DNA; only found in Eukaryotic cells?
A. Mitochondria
B. Nucleus
C. Lysosome
D. Ribosome
True or False? Climate describes the average temperatures and amount of precipitation in an area over a long period of time, while weather describes the current changing conditions in an area
Answer:
The answer is True
question
Climate describes the average temperatures and amount of precipitation in an area over a long period of time, while weather describes the current changing conditions in an area
•TRUEhope it helps
Compare how active solar heat and passive solar heat structures work differently to gather heat from
the sun.
Answer:
Active heating captures sunlight, either as heat or electricity, to augment heating systems, while passive heating captures heat from the sun as it comes into your home through windows, roofs and walls to heat objects in your home (hope that helped?)
Explanation:
4) The end product of aerobic respiration are
(a) Energy ethanol and carbon IV oxde
(b) Carbon IV oxide (c) glucose alcohol
and energy (d) glucose water and energy
Answer:
The end products should be Carbon dioxide and Water.
Explanation:
Hope this helps.