NASA help to distinguish genetic factors from environmental ones by
analyzing changes experienced in one twin on Earth and the other in space.
NASA planned to study how environmental conditions affects the health
conditions of humans. They decided to use twin brothers because of them
sharing the same genetic makeup.
One of them is taken to space and the other is left on earth and their health
are studied to ascertain any change as a result of the environmental change
to that of space.
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What is the expression y is 8 less than the product of 3 and x
Answer:
8<3x
Explanation:
< is a symbol of less than and when you multiply 3 by x the answer is 3x so 8<3x
what were the conditions during the 1600s and 1700s?
Answer:
Crop failure and disease was a constant threat to life. Wheat bread was the favorite staple, but most peasants lived on Rye and Barley in the form of bread and beer. These grains were cheaper and higher yield, though less tasty.
Which type of bond, denoted by the arrows, allows DNA to be readily replicated?
Need for a final will mark brainliest!
Answer:
the answer would be hydrogen bonds as another chemical will come down the center of the double helix and break the hydrogen bonds allowing DNA synthase II to come along a replicate it.
Which type of tissue adds structure to
the body?
1. Muscle
2. connective
3.nerve
4.epithelial
Answer:
4. Epithelial layer
Explanation:
1) According to the global ecological footprint by nation, which country likely has the smallest (per capita) reliance on non-renewable resources?
es
A) USA
B) China
France
D) South Korea
Answer: france
Explanation:
france
Help me out plz I’ll mark
Answer:
C
Explanation:
Answer:
Explanation:
I think its B
The Northern Hemisphere has the most hours of daylight at the
Answer:
summer solstice
What is Transpiration ???!
[tex]\huge \bf༆ Answer ༄[/tex]
Transpiration is the the phenomenon which generally occurs in plant, In which the plant looses water in the form of water vapour through stomata.
Two main functions of transpiration ~
It causes transpirational pull that helps in transportation of water from roots to upper portions of the plantIt helps to release excess waterPlant absorb a large quantity of water from the soil by roots . this water reaches to different part of the plant by ascent of sap . the total quantity of water absorbed by plant is more than their requirement. only a fraction of this water from a vapour throw the aerial parts like (stem , leaves , buds , and , flower) of plant which constitute about 95% of total absorbed water . this process is called transpiration .
Transpiration is vital process.This process mainly occur by stomata.Water evaporates in the form of vapour from aerial parts of plant.The loss of water per unit area is more It is regulated processTypes of Transpiration -:
1 Stomatal Transpiration ;
it take place through stomata present on leaves it is also called foliar Transpiration. it constitutes about 80-95% at total Transpiration.2 Cuticular Transpiration;
it take place by cuticle present on the epidermis of plant it is constituted about 5-10% of total transpiration it rate is high in tropical climate and low desert climate.3 Lenticular Transpiration
it take place through lenticles found in Woody stem and in some fruits it constitute 0.1-1% only of total transpiration.What is CdK?
A. A protein substrate
B. An enzyme
Answer:
I think it's A) A protein substrate
what is the main function of the mitochondria in a plant cell?
Answer:
Produce energy for the cell.
Explanation:
which part of the body is the control center for the nervous system?
which test measures the flexibility of the lower back and hamstrings
Answer:
The Sit and Reach Test
Explanation:
The Sit and Reach Test is one of the linear flexibility tests which helps to measure the extensibility of the hamstrings and lower back. It was initially described by Wells and Dillon in 1952 and is probably the most used flexibility test.
if you come across a child with swollen face hands and feet thin upper arms and weak muscles what would you primary advise the parents based on your biology knowledge?
Answer:
I will tell them to take care of their child
Explanation:
HOPE IT HELPS!
briefly describe the nebula theory formation of our solar system use the words protostar and protoplanets in your discussion
Answer:
Below!
Explanation:
Currently the best theory is the Nebular Theory. This states that the solar system developed out of an interstellar cloud of dust and gas, called a nebula. This theory best accounts for the objects we currently find in the Solar System and the distribution of these objects. The Nebular Theory would have started with a cloud of gas and dust, most likely left over from a previous supernova. The nebula started to collapse and condense; this collapsing process continued for some time. The Sun-to-be collected most of the mass in the nebula’s center, forming a Protostar.
A protostar is an object in which no nuclear fusion has occurred, unlike a star that is undergoing nuclear fusion. A protostar becomes a star when nuclear fusion begins. Most likely the next step was that the nebula flattened into a disk called the Protoplanetary Disk; planets eventually formed from and in this disk.
Three processes occurred with the nebular collapse:
Temperatures continued to increase The solar nebula spun faster and faster The solar nebula disk flattenedThe orderly motions of the solar system today are a direct result of the solar system’s beginnings in a spinning, flattened cloud of gas and dust.
Hoped this helped.
[tex]-BrainiacUser1357-[/tex]
Which of the following about the biosphere is true?
a. It only interacts with the atmosphere.
b. It includes oceans, lakes, rivers, and groundwater
c. It can be considered a global ecosystem.
d. It includes the core, mantle, and crust.
Answer:
c. it can be considered a global ecosystem
Answer:
C. It can be considered a global ecosystem
Explanation:
egde 2022
Which is NOT true about a carrier for a genetic disorder?
a. They are heterozygous for the disorder.
b. They have the disorder.
c. They had at least one parent with the disorder.
d. They may have siblings that have the disorder.
***Giving brainlist***
Answer:
b. They have the disorder.
it doesnt always show physical signs
27. A form of energy is stored in the bonds
between atoms, What is the name for
this stored energy?
A kinetic energy
B chemical energy
C electrical energy
D electromagnetic energy
A form of energy that is stored in the bonds between atoms of a chemical element is referred to as: B. chemical energy.
A chemical energy can be defined as a form of energy that is stored within the forces of attraction (bonds) that are existing between ions, crystals, atoms or molecules.
In Chemistry, bond energy refers to the amount of chemical energy that is required to break one (1) mole of a particular chemical bond. Also, bond energy is measured in kJ/mol.
In conclusion, a form of energy that is stored in the bonds between atoms of a chemical element typically is referred to as chemical energy.
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what is the effect of antidiuretic hormone on the cells of the collecting duct?
Charlotte created a table with characteristics of the modern classification system for her science project.
Charlotte did not get a good grade on her science project. Which describes the mistake she made on her table?
A. Organisms found in the kingdom Archaebacteria are prokaryotic.
B. Organisms found in the kingdom Eubacteria are multicellular.
C. Organisms found in the kingdom Protista are only unicellular.
D. Organisms found in the kingdom Animalia are prokaryotic.
The statement 'organisms found in the kingdom Archaebacteria are prokaryotic' describes the mistake she made on her table (Option A).
What are prokaryotes?Prokaryotes are unicellular organisms that lack cell nuclei and membrane-bound organelles.
According to modern systems of classification, prokaryotic organisms include Archea and Bacteria domains.Eukaryotic organisms include both unicellular and multicellular organisms.In conclusion, the statement 'organisms found in the kingdom Archaebacteria are prokaryotic' describes the mistake she made on her table (Option A).
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Help with biology plzz USA test prep
Answer:
see below
Explanation:
amplification: MUTATION = a type of mutation
independent assortment: MENDELIAN = how different
genes independently separate from one another
when reproductive cells develop
nondisjunction: MUTATION = a type of chromosomal
mutation
translocation: MUTATION = another type of chromosomal
mutation
codominance: MENDELIAN = a relationship between two
genes where neither allele is recessive and both
are expressed
insertion: MUTATION = a type of mutation
radiation: MUTATION = causes mutations
virus: MUTATION = causes mutations as the virus
replicates
deletion: MUTATION = a type of mutation
law of dominance: MENDELIAN = one of Mendel's laws
of inheritance
sex linked traits: MENDELIAN = linkage is an exception
to Mendel's law of independent assortment
incomplete dominance: MENDELIAN = when none of the
factors of a gene is dominant and there is a blend,
such as a red flower crossed with a white flower
turns out pink
law of segregation: MENDELIAN = one of Mendel's laws
of inheritance
substitution: MUTATION = a type of mutation
how has the change in the human population over time affected the environment
Changes in water pressure within guard cells cause the cells to open or close the stomata. This response helps the plant maintain homeostasis by
Answer:
reduced water loss
Explanation:
When the water enters the cells, they swell and become bowed. This causes the guard cells to bend away from each other, thereby opening the stomata. Conversely, when guard cells lose potassium ions, water diffuses out of the cells by osmosis.
The response helps the plant maintain homeostasis by regulating water levels that plants lose during transpiration.
What is cellular homeostasis?The expression cellular homeostasis makes reference to the processes by which an organism maintains an internal state of equilibrium.
Cellular homeostasis is fundamental for the survival of the cell and the organism.Cellular homeostasis in this case indicates the mechanism to maintain concentration and gradients used by the plant to carry out metabolic functions.In conclusion, the response helps the plant maintain homeostasis by regulating water levels that plants lose during transpiration.
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The bulky shape of fat cells make them ideal for performing which of the following functions of connective tissue?
Bone movement
Nutrient transport
Filling spaces
Body support
The bulky shape of fat cells makes them ideal for filling spaces of connective tissue. The fat cells represent a type of connective tissue.
The adipose tissue is a type of connective tissue composed of fat cells known as adipocytes.
These cells (adipocytes) are specialized cells that store fats, which can be produced by the human body or obtained from the diet.
The shape of the adipocytes can be spherical, oval, polyhedral (as part of adipose connective tissue), etc.
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Answer: Filling spaces
Explanation:
HELP PLEASE I DONT UNDERSTAND
Answer:
Well i'm not going to tell you the answer but i can help
Explanation:
You have to use this picture and make a argument about these parts of dog they list what are there major movement like how they move
2 What is the function of proteins in the cell membrane?
F Facilitate the movement of particles across the cell membrane
G Receive chemical signals from other cells to begin a process in the cell
H Code for specific structures found in the cell membrane
J Create a hydrophobic layer that forms a barrier between the inside and outside of the cell
After nitrogen becomes part of the lithosphere, the next change the nitrogen will under go is it will be
A used as a nutrient by plants
B fix by bacteria in the soil
C absorbed into the atmosphere by lightning
After nitrogen becomes part of the lithosphere, the next change the nitrogen will under go is it will be:-
A. used as a nutrient by plants
B. fix by bacteria in the soil
C. absorbed into the atmosphere by lightning
Answer:-B. fix by bacteria in the soil
Explanation:-These bacteria are known as nitrogen-fixing bacteria. These nitrogen-fixing bacteria convert nitrogen in the soil to ammonia. Ammonia can be taken up by plants.Where do the light-dependent reactions take place?
a. within the thylakoid membranes
b. within the mitochondria membranes
c. in the outer membrane of the chloroplasts
d. in the stroma of the chloroplast
A, the thylakoid membranes
What did Rosalind Franklin contribute to the understanding of DNA molecules?
A
An image indicating the shape of a DNA molecule
B
An analysis of the chemical makeup of a DNA molecule
C
A thought that DNA carries genetic information
D
A theory about how DNA conveys genetic information
Please help me with this it’s so hard
Answer:
1: Frond's
2:Pistil
3:Gametes and spore's
4: photosynthesis
5: Spore
6:Stigma or ovule
7:Ovary
Hope this helps!
Your friend says that every material can be classified as either good conductor or a good insulator. Is your friend correct? Write a sentence to explain why you agree or disagree?
Answer:
Your friend is correct. Materials such as copper are good conductors, but poor insulators. However, rubber is a good insulator and a poor electrical and heat conductor.