Answer:
Explanation:
NASA wants to send astronauts to Mars, and they could do it with nuclear-powered rocket engines. Nuclear thermal propulsion (NTP) systems aren't new, but they could significantly reduce travel times and carry greater payloads than today's top chemical rockets — giving humans a great chance of exploring deep space
What was Ptolemy's objection?
Blood:
A
Is pumped from the heart into the veins
B
Enters the right atrium from the lungs
C
travel to the body systems from the left ventricle
D
Is not involved in temperature control
I NEED HELP PLEASE
1. "A lead balloon falls to the ground when dropped.” Scientific Law or Scientific Theory?
Answer:
I would think the answer would be Scientific Theory since it explains what happens when the led balloon is dropped.
I hope this helps! (Please mark brainliest if right)- Would be greatly appreciated!
Choose a statement that explains why competitive exclusion occurs between different species.
Limited resources are easily shared.
There are unlimited resources in the ecosystem.
Competition decreases the health of all animals.
One competitor is best at using a limited resource.
The statement "Limited resources are easily shared" is the one correct about the competitive exclusion between different species.
What is competitive exclusion?It is the result of the competition in which a species is expelled by another more efficient species from a part of the available habitat.
Characteristics of the competitive exclusionThe competitive exclusion principle states that two species cannot occupy the same ecological niche in the same habitat.If there are limited resources, eventually one species will exclude the other, given a certain period of time, through “competitive exclusion”.Therefore, we can conclude that the competitive exclusion states that two species occupying the same niche cannot coexist in the long term since they would enter into competition for limited resources.
Learn more about the competitive exclusion here: https://brainly.com/question/14395037
What are the two types of visible-light telescopes?
Can someone please tell me an explanation of Interpahse in mitosis please? Also please dont copy and paste
Answer: at the point when the cell develops and duplicates its DNA prior to moving into mitosis. During mitosis, chromosomes will adjust, isolated, and move into new daughter cells.
26. Analyze In a particular species of butterfly, the genes
for two different traits, antenna shape and antenna
color, are located on the same chromosome. As a result,
crosses between these buttertues do not obey one of
Mendel's laws. Which law does not apply, and why?
Answer:
law of independent assortment
Explanation:
Independent assortment is the random distribution of the pairs of genes on different chromosomes to the gametes. I hope this helps :)
How do proteins and amino acids affect how we think and behave?
Answer:
proteins and amino acids, the building block nutrients of growth and development, manipulate how we feel and behave. Amino acids contain the precursors to neurotransmitters, the chemical messengers that carry signals between neurons, affecting things like mood, sleep, attentiveness, and weight.
Explanation:
I NEED HELP!
It explains in the image.
Which specialist is needed to maintain a patient's
stability in a surgery during which the heart is
stopped?
echocardiogram technician
cardiologist
cardiac perfusionist
cardiology nurse
Answer:
Cardiac perfusionist
Explanation:
just trust me bro
Directions: Choose the best word to fill in the blank in order to make this sentence accurate.
A ___________ is a community of biotic factors in conjunction with abiotic factors interacting as a system.
Biome
Biosphere
Niche
Ecosystem
Answer: Ecosystem
Explanation: Definition of Ecosystem: a biological community of interacting organisms and their physical environment :)
Answer:
Ecosystem
Explanation:
ecosystem is a community of living organisms (plants, animals and microbes) in conjunction with the nonliving components of their environment (things like air, water and mineral soil), interacting as a system.
Explain how cellular respiration and photosynthesis work together in plants.
✧･ﾟ: *✧･ﾟ:* *:･ﾟ✧*:･ﾟ✧Answer:✧･ﾟ: *✧･ﾟ:* *:･ﾟ✧*:･ﾟ✧
Converts carbon dioxide and water into oxygen and glucose
✧･ﾟ: *✧･ﾟ:* *:･ﾟ✧*:･ﾟ✧Explanation:✧･ﾟ: *✧･ﾟ:* *:･ﾟ✧*:･ﾟ✧
Photosynthesis converts carbon dioxide and water into oxygen and glucose. Glucose is used as food by the plant and oxygen is a by-product. Cellular respiration converts oxygen and glucose into water and carbon dioxide. Water and carbon dioxide are by- products and ATP is energy that is transformed from the process.
Place the steps below in order from the first to happen to the last that will happen in hemostasis. Chemicals are released from the injury site and from underlying callogen. A blood vessel is severed. Blood and blood components leak out the breaks. The platelets become activated making them spiked and sticky. Fibrin forms a mesh that traps more platelets and erythrocytes, producing a clot. Fibrinogen is converted to fibrin. The smooth muscle in the vessel wall contracts near the injury point, reducing blood loss.
Answer:
A blood vessel is severed.
Blood and blood components leak out the breaks.
Chemicals are released from the injury site and from underlying callogen.
The smooth muscle in the vessel wall contracts near the injury point, reducing blood loss.
Fibrinogen is converted to fibrin.
The platelets become activated making them spiked and sticky.
Fibrin forms a mesh that traps more platelets and erythrocytes, producing a clot.
Explanation:
Hemostasis is the process by which the body prevents and stop blood loss through bleeding.
Hemostasis occurs in three steps:
1. Vasoconstriction: Once a blood vessel is severed or cut, the smooth muscles of the blood vessels start to constrict or get narrower around the severed vessel in order to reduce blood flow through it. This vasoconstriction occurs in response to chemicals released from the cut vessel and the underlying collagen.
2. Platelet-plug formation: the platelets become activated by a glycoprotein called Von Willebrand factor (vWF), which is found in plasma and begin to clump together sticking together. This is known as primary hemostasis.
3. Clot formation: in response to platelet-plug formation, several clotting factors are activated which eventually convert fibrinogen to fibrin. Fibrin is mesh-like and holds the platelets as well as red and white blood cells in place, thereby forming blood-clots over the wound.
What is the most important organism on the food web?
Answer:
autotrophs
Explanation:
please vote me as the brainliest i just need one more
Which atom contains exactly 15 protons?
Oxygen
Phosphorus
Sulfur
Nitrogen
Answer: Phosphorus
Explanation:
A punnet square shows you all the ways in which____can combine.
A. alleles B.eggs
C. sperm. D. colors
Answer:
The answer is A. alleles
most respiration occurs in oragnelles called
Answer:
mitochondrion
Explanation:
Based on the law of conservation of matter, which
statement is true about a chemical reaction?
А
Mass stays the same.
B
Matter is created.
С
Matter is destroyed.
D
Matter in a reaction can never change states.
Answer:
a
Explanation:
Reptiles excrete their nitrogen waste the form of ?
Group of answer choices
Uric acid diluted with water as urine
noen of these they don't excrete nitrogen waste
urea diluted with water as urine
ammonia through their gills like fish
1. An atom of which element has 37 protons, 48 neutrons and 1 valence electron? Answer:
Answer: Rubidium
Explanation:
The atom with 37 protons, 48 neutrons, and 1 valence electron is Rubidium (Rb).
Which element has 37 protons, 48 neutrons, and 1 valence electron?Rubidium (Rb) is the element that has 37 protons, 48 neutrons, and 1 valence electron. Protons and neutrons are located in the nucleus of an atom, while valence electrons are found in the outermost energy level or shell.
In the case of Rubidium, it has 37 protons which defines its atomic number and element identity. Also, it has 48 neutrons which contribute to its atomic mass. The valence electron of Rubidium is in the outermost energy level making it readily available for chemical reactions and interactions with other atoms.
Read more about Rubidium
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What are 4 types of
organisms that need energy
to survive?
Answer:
plants, animals, microorganism and bacteria
Explanation:
The topmost solid part of the Earth is called the
Answer:
Lithosphere is the topmost solid part of the Earth
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(GIVING BRAINLIEST!!)
Which of the following correctly lists the parts of the water cycle?
A) Evaporation, condensation, temperature, precipitation, collection
B) Condensation, build-up, runoff, precipitation, collection
C) Runoff, precipitation, evaporation, melting, condensation
D) Evaporation, condensation, precipitation, runoff, collection
Explain why
Answer:
D) Evaporation, condensation, precipitation, runoff, collection
Please give me brainlyest
Explanation: The water cycle shows the continuous movement of water within the Earth and atmosphere. System that includes many different processes. Liquid water evaporates into water vapor, condenses to form clouds, and precipitates back to earth in the form of rain and snow. Then I does runoff and creates a new water source or goes back to a water source.
Given a force of 88 N and an acceleration of 4 m/s2....what is the mass?
a
10 kg
b
14 kg
c
22 kg
d
50 kg
Answer:
C
Explanation:
F=m*a
m=F/a=88N÷4m/s=22kg
Answer:
C
Explanation:
F=m*a
m=F/a=88N÷4m/s=22kg
Turn on Show element name. What
causes the element name to change?
Answer:
what I didnt understand the question
Explanation:
how are sexual traits adaptations
Answer:
stronger and longer organ are able to mate more with females, whereas the shorter one didn't stand a chance.
Who can answer this last one for me ??!
Genetic variation among the gametes of one individual is most likely to
increase if crossing over
A. happens during meiosis I.
B. happens after meiosis II.
C. involves different species.
D. involves sister chromatids.
Answer:
A. happens during meiosis I.
Explanation:
In meiosis I, homologous pairs align independently on the equator. All possible combinations of chromosomes can occur among the gametes. Genetic variation is increased by crossing-over. (union of female and male gametes) produces random combinations.
Where does energy flow from
Answer:
the sun hot stuff
Answer: Energy flows through an ecosystem in only one direction. Energy is passed from organisms at one trophic level or energy level to organisms in the next trophic level.
If you want to know the main source of energy... the answer is the sun.
4. The number of atoms of the elements in reactions
a. Does not change but can be rearranged
b. Always changes.
c. Changes in some circumstances
d. Changes and doesn't get rearranged.
(GIVING BRAINLIEST!!!!!!)
What is the water cycle?
A) A process by which water moves from cloud to cloud in the sky
B) A process by which water is absorbed into soil on Earth's surface
C) A process by which water moves from Earth's surface into the sky and back again
D) A process by which wind washes large amounts of water onto land from the oceans
explain why
according to me the answer is
C) A process by which water moves from Earth's surface into the sky and back again
explanation:the water becomes water vapour due to heat and becomes light in then it goes to higher altitude and cools down and again becomes drops of water which are heavily to hold in air so it starts raining and it comes again to ground and then again heat happens it turns in vapour cools down and moves to earth's surface (in form of rain,snowfall) and this process goes on going continuously this is called as water cycle
SO ur answer is
C) A process by which water moves from Earth's surface into the sky and back again
Answer:
c
Explanation:
A process by which water moves from Earth's surface into the sky and back again
