Answer:
the answer is C
Explanation:
scientists believe that a ball of matter (the size of a pin head) exploded and created the universe! this is the big bang theory ♡
Answer: C
Explanation: Because hen there is matter, then it can explode creating a universe
Human blood has an approximate pH of 7.3, which substance is more basic than human blood?
I do believe that it is a water and ammonia solution (pH of 11)
How does the excretory system work with the muscular system?
Answer:
How the Muscular and the excretory system work together. The Muscular system helps the Excretory system by moving waste through the body and protect its organs. The Excretory system helps the Muscular system by getting rid of carbon dioxide from the muscles.
Explanation:
A biochemist studying a surface protein that is normally anchored to the cell membrane of a human cell determines the sequence of amino acids in the protein. Upon analyzing the amino acid sequence, the biochemist notices that most amino acids found in the protein sequence of the anchor portion of the protein are nonpolar uncharged amino acids.
Which argument BEST explains this result?
Answer:
C
Explanation:
Identify landform B, explain how it forms, and tell whether it is the result of erosion or deposition.
Answer:
Erosion because if you look it looks like it is slowly eroding
Explanation:
In the pea garden, Mendel found that yellow seed color was dominant to green (A>a) and round seed shape was dominant to shrunken (R>r). a) What phenotypic ratio would be expected in the F2 from a cross of a pure yellow, round x green, shrunken
Answer:
The correct answer is - 9:3:3:1
Explanation:
A cross between pure yellow round seeds(AARR) to another pure green shrunken seeds (aarr). In the F1 generation, all offsprings are heterozygous yellow round(YyrRr).
Now this heterozygous self-pollination, in the F2 generation, 9 plants are Yellow round, 3 plants are yellow shrunken, 3 plants are green round and 1 plant is green wrinkled are formed.
YR Yr yR yr
YR YYRR YYRr YyRR YyRr
When different types of staple fibers are spun together into a single yarn, the result is a
Answer:
String
Explanation:
That is what yarn is.
PLEASE ANSWER!! I WILL GIVE BRAINLIEST!!!
Which layer contains most of the air pollutants released by human
activity?
A. troposphere
B. mesosphere
C. thermosphere
D. asthenosphere
Answer:
A: Troposphere
Explanation:
The troposphere contains the largest percentage of the mass of the atmosphere relative to the other layers. It also contains some 99 percent of the total water vapor of the atmosphere. The temperature of the troposphere is warm (roughly 17º C) near the surface of the earth.
Answer:
a
Explanation:
Blood. It is composed of plasma, red blood cells, white blood cells, and platelets. Do you know the major function of each? Identify
the blood component that is not matched with the correct function.
A)
Blood platelets play a role in coagulation
B)
Red blood cells transport oxygen and carbon dioxide.
The plasma component of blood is key to nerve and muscle stimulation
D)
White blood cells are involved in the immune response to identify and
target pathogens
Answer:
I think a is the awnser because it makes the most sense
TIMMER HELP PLLEASE Which of the following is not a benefit to using scientific models? a. Scientific models help scientists gain a better understanding of concepts and events. b. Scientific models aid in communication about concepts and events. c. Scientific models are never subject to change. d. Scientific models can help answer scientific questions. Please select the best answer from the choices provided A B C D
Answer:
c. Scientific models are never subject to change
Explanation:
Scientific models can change when new discoveries are made
Answer:
C!
Explanation:
Which of the following is the focus of the NOAA?
limiting fishing
preserving fish species
policing fishing methods
maintaining water quality
Answer:
preserving fish species
Explanation:
"NOAA" stands for "National Oceanic and Atmospheric Administration." It focuses on preserving the marine environment and shares information about the climate, weather and so on. This means that its focus is to "preserve the fish species," and in order to do this, it created policies like the "Annual Catch Limits." This will prevent overfishing and ensure the world of a sustainable fish supply. Besides this, they also try to improve fish habitats and ensure the water quality in order for fishes to thrive.
A stream that flows into two different rivers is part of two
A reservoirs.
B. tributaries.
C. divides.
D.
watersheds.
Answer:
Tributaries
Explanation:
I wound think that they would be branching of so thats what i would say
A water body that flows on the surface of the earth is called a stream. The river is a larger water body compared to streams. Stream is shallow likened to river volume.
A stream that flows into two distinct rivers is part of two:
Option b. Tributary
This can be explained as:
A reservoir is a lake that reserves the water either created naturally or artificially.A stream that merges into the river is called tributary or affluent.A watershed is a drainage bay where the water from precipitation gets accumulated and drains to common river or water bodies.Therefore, a tributary is a stream that flows into two different rivers.
To learn more about streams and tributaries follow the link:
https://brainly.com/question/7557130
Results from multiple experiments suggest that the ActA protein of Listeria, an integral membrane protein expressed on the cell surface, is the only bacterial protein that is required for the movement of the bacterium within its host cell. Which combination of the following observations shows that ActA is both, necessary and sufficient for bacterial movement?
I. ActA binds to the Arp2/3 complex
II. E. Coli in which ActA is expressed moves in host cell cytosol
III. Listeria lacking the ActA gene fail to move inside the host cell cytosol.
IV. ActA has 3 transmembrane domains
V. Arp2/3, when activated, nucleates a branched actin network
a. I and II
b. II and III
c. I and III
d. III and IV
e. I and V
Answer:
b. II and III
Explanation:
The Actin assembly-inducing (ActA) protein is an integral membrane protein localized on the bacterial surface. It has been shown that ActA is necessary and sufficient to induce bacterial movement within host cells, regardless of other proteins. The function of the ActA protein for bacterial movement within host cells was discovered by identifying mutant Listeria bacteria for the gene encoding this protein which were unable to spread from cell to cell. Subsequently, by inducing mutations in other genes of the bacterial genome, researchers discovered that actA was the only protein involved in the actin assembly, which is required for cell-to-cell spread.
(90 POINTS) The three points of cell theory correspond to which signs of life?
point 1. All living things
are composed
of cells.
point 2. Cells are the
fundamental
units of life.
point 3. All cells come
from other
cells.
A. Reproduction and one or more cells
B. Response to the environment and information system
C. One or more cells and information system
D. Information system and complex chemical activities
Answer:
A) I think
Explanation:
Answer:
b
Explanation:
main stages of the cell cycle
Answer: The cell cycle is a four-stage process in which the cell increases in size (gap 1, or G1, stage), copies its DNA (synthesis, or S, stage), prepares to divide (gap 2, or G2, stage), and divides (mitosis, or M, stage). The stages G1, S, and G2 make up interphase, which accounts for the span between cell divisions.
which of the following is a true statement about mechanical weathering
mechanical weathering changes the rock into a different material
mechanical weathering can break rocks into smaller sediments
mechanical weathering is only occur by volcanoes
earthquakes produce mechanical weathering only
Answer:
The answer is B
Explanation:
what is the cure of this pandemic
Answer:
people
Explanation:
wearing masks, sraying at home,
What are the most basic building blocks of all organisms?
OA. bones
OB. muscles
OC. organs
D. cells
Answer: Cells
Explanation:
may iba't ibang uri ng kawayan tulad ng kawayan bayog kawayan at kawayan kiling
Answer:
its a Bamboo tree
Explanation:
Ang kawayan ay magagamit sa paggawa ng lantay, upu-an at iba pa
why was the Sacco and Vanzetti trial significant
A( it showed how the Red Scare had influenced attitudes toward immigrants.
B( it showed that Americans were Sympathetic to immigrants.
C( it showed that immigrants were treated fairly by law enforcement officials.
D( it was demonstration of judicial fairness to immigrants.
Answer: A. It showed how the red scare had influenced attitudes toward immigrants
Explanation:
There was a rise for nationalism( a negative thing mind you, that discriminates against "non-Americans") in the early 20s, and it affected most of Americas judgement of a fair trail (and treatment in general) towards immigrants.
all of the genetic material in an organism. a.) genome b.) stem cell c.)GMO
Answer:
B
Explanation:
What is the correct amino acid sequence for the given DNA sequence? TACACGTTCACC
A) methionine, valine, lysine, tryptophan
B) methionine, cysteine, lysine, tryptophan
C) methionine, cysteine, arginine, serine
D) serine, valine, lysine, stop
Answer:
The correct answer is - B) methionine, cysteine, lysine, tryptophan
Explanation:
Amino acid chain or sequence depends on the codes or the information mRNA is copied from the DNA sequence. The DNA sequence is the sequence of the nitrogenous bases that are coded or copied by mRNA in the complementary sequence and then translate into an amino acid sequence:
DNA: TACACGTTCACC
mRNA: AUG-UGC-AAG-UGG
Amino acid sequence: methionine, cysteine, lysine, tryptophan
How do cold ocean currents affect climate ?
Do you think wolves are a keystone species? Explain your answer
Answer:
I think that wolves are a keystone species because they regulate prey. If they were gone, prey would overpopulate and decrease the population of smaller organisms such as plants. Without plants and other food sources for the prey, the prey would also decrease eventually.
Explanation:
correct scientific notation of the number 2600000000
Which of the following is an example of a positive feedback loop:
I. As the Earth’s surface warms due to global warming, water evaporation from a lake will initially increase. As the lake level drops, the surface area decreases and evaporation also decreases.
II. Water vapor from ocean evaporation creates low altitude clouds. Sunlight that would normally warm the Earth’s surface is instead reflected back to outerspace.
III. Water vapor from ocean evaporation creates high altitude clounds. Heat that would typically escape the atmosphere into outer space is trapped in the atmosphere instead.
I only
II only
III only
I and II.
I, II and III
What is added as an anticoagulant to preserve blood specimens?
OA sodium citrate
B
sodium fluoride
O'c. potassium oxalate
OD liquid paraffin
E.
ethanol
Reset
Answer:
C. potassium oxalate for plato / edmentum
Explanation:
I took notes in the class and my notes say -
To prevent blood from clotting, toxicologists add anticoagulants to the blood sample. Anticoagulants such as potassium oxalate (30 mg/mL) is preferred over heparin or ethylenediaminetetraacetic acid (EDTA) because both heparin and EDTA interfere with the detection of certain chemicals, such as calcium, in the blood. If the blood is suspected of carbon monoxide poisoning, a layer of liquid paraffin is added over the blood sample. This layer prevents exposure to atmospheric oxygen.
My main organs are the heart and blood vessels.
What am I?
Answer:
cardiovascular system
Explanation:
Which of the following does NOT describe prokaryote chromosome organization?
diploid
found in the nucleoid
circular
tightly coiled
Answer:
diploid
Explanation:
diploid sorry if I'm wrong
Mendel came up with his Law of Independent Assortment through his investigations studying ?
whether or not the inheritance of one trait affected the other.
simple monohybrid traits such as plant height.
the passing down of dominant seed shape to offspring.
how self-pollination affects the second filial generation.
Answer:
A. whether or not the inheritance of one trait affected the other.
Explanation:
I just had this question on my exam :)
The agricultural research facility during a research accidentally changed the DNA sequence of a wheat plant from GCCATGTT to GCGTACTT and this mutation resulted in a stronger plant variety. What kind of mutation did the plant undergo?
A. Inversion
B. Substitution
C. Insertion
Answer:
The answer is A. Inversion
Explanation:
the codes is just changing
hope this helps