Answer:A checkpoint is a stage in the eukaryotic cell cycle at which the cell examines internal and external cues and "decides" whether or not to move forward with division.
Explanation: Easy Peasy
What is space junk and why do we need to know about it?
Space junk, or space debris, is any piece of machinery or debris left by humans in space. It can refer to big objects such as dead satellites that have failed or been left in orbit at the end of their mission. It can also refer to smaller things, like bits of debris or paint flecks that have fallen off a rocket.
Answer:
6
Explanation:
What did Bill climb to get out of the Nye Lab?
Answer:I think it is A DNA molecule 5
sorry if I am wrong
Answer:
DNA
Explanation:
i think
A pedigree chart can help trace _________ in a family to determine whether people carry recessive alleles.
A.phenotype
B.genotype
C.genotype and phenotype
Anyone plz chose 4 plz help me I need to turn this in quick plz
Answer:
protects abdominal organs stores minerals helps maintain balance creates all movement of the body generates heat and provides a frame
gas pressure in a closed system is caused by
Answer:
"C"
Explanation:
Gas pressure in a closed system is caused by resultant force of all combines collisions. The correct option among all the options that are given in the question is the third option or option "C". The other options can easily be ignored. I hope the answer comes to your help.
Answer:
resultant force of all combines collisions
Explanation:
What is free nitrogen? Nitrogen gas is called "free" nitrogen, meaning it is not combined with other kinds of atoms. Most organisms can use nitrogen only once it has been "fixed," or combined with other elements to form nitrogen-containing compounds.
Answer:
About 78% of the Earth's atmosphere is made up of "free" nitrogen (N2), produced by biological and chemical processes within the biosphere and not combined with other elements. ... One family of nitrogen compounds produced by nitrogen - fixing bacteria are called nitrates.
Explanation:
Hope this helps
Free nitrogen refers to nitrogen gas (N₂) that exists in the Earth's atmosphere as a diatomic molecule consisting of two nitrogen atoms bonded together. It is called "free" nitrogen because it is not chemically combined with other elements or atoms.
Nitrogen gas makes up approximately 78% of the Earth's atmosphere, making it the most abundant gas present. Despite its abundance, most organisms cannot directly utilize nitrogen gas in this form. This is because the bond between the two nitrogen atoms is very strong, requiring a significant amount of energy to break.
Therefore, free nitrogen refers to nitrogen gas (N₂) present in the atmosphere that is not chemically combined with other elements. It needs to undergo nitrogen fixation to be converted into usable forms before most organisms can utilize it.
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Manuel eats lunch in the cafeteria every day. How does his digestive system make use of the lunch he eats?
a
A. It changes the food into cells that protect the body from illness.
b
B. It converts food into oxygen that is absorbed into the blood.
c
C. It breaks down some food into usable material for the body and discards the rest.
d
D. It breaks down food into the chemicals needed by the body to regulate temperature.
Answer:
C
Explanation:
Answer:
c
Explanation:
What are the series of changes that occur in an ecosystem over time
Explanation:
As an ecosystem changes,older inhabitants gradually die out and new organisms move in,causing further changes in the community.This series of predictable changes that occurs in a community over time is called ecological succession.Ecological succession is slow and gradual ;it occurs over a period of many years.
I hope this helps!
Fragments of rock or lava that are sent into the air in a volcanic explosion are called
A) fumaroles
B) tephra
C) aggregates
D) cations
E) soil peds
Answer:
Fragments of rock or lava that are sent into the air in a volcanic explosion are called tephra.
Explanation:
The volcanoes come in different shapes and sizes, and with them come different types of eruptions as well. Some volcanoes have explosive eruptions, some mainly release ashes and gasses, while some erupt with lava flows. The volcanoes that have explosive eruptions release a lot of pyroclastic material often propelled high and wide around them.
Part of the pyroclastic material that is released is the tephra. Tephra is basically represented by fragments of very hot rock and lava that are shoot into the air during a volcanic eruption. The tephra is extremely dangerous, as it can be shoot out over a distance of several km, and being very heavy, very hot, and moving at very high speed, when it hits something it manages to destroy it or cause enormous damage, and if it is a living organism that is hot it will mean the end of it for sure.
Answer:
Tephra
Explanation:
Definition: rock fragments and particles ejected by a volcanic eruption.
Please answer the question correctly
hi, the answer is b, line segment GH
hope this helps!
what will you do if you find out that your house is located near an active fault?
Answer:
b
Explanation:
Match the terms to their definition
How does the sperm come in contact with frog eggs?
The sperm is carried through a reproductive system
The sperm is placed on top of the eggs
The sperm is carried to eggs via water
Explanation:
the sperm is placed on top of the frog eggs
The sperm come in contact with the frog eggs as they are placed on top of the egg cells. Thus, the correct option is B.
What is fertilization in frogs?During the spring season or rainy season, frogs and toads move to ponds and slow flowing stream regions. When the male (sperm) and female (egg) come together in water medium, the female frog lays hundreds of eggs in the water. Frog’s eggs are not covered by a shell and it is comparatively very delicate in nature. A layer of the jelly holds the eggs together in place and provides protection to the egg cells. As the eggs are laid in the water, the male frog deposits sperms over them. Each sperm swims randomly in the water body with the help of the long tails. The sperms (male gamete) come in contact with the eggs (female gamete). This results in fertilization of the gametes.
The sperm come in contact with the frog eggs as the sperm is placed on top of the eggs.
Therefore, the correct option is B.
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Long ago, the tree of life was seen as having five branches.
True or False?
Answer:
false, hopefully iss right
where should buildings be constructed if we want them to survive major earthquakes
Answer:
Engineers must design in structures that can absorb the energy of the waves throughout the height of the building.
Explanation:
Question 1 (1 point)
Which of the following mutations will not result in a change to the amino acid
sequence of a protein?
A)nversion
B)substitution (silent)
C)deletion
D)missense
Answer:
b
Explanation:
t makes sense
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.
Which type of offspring is most likely the result of asexual reproduction?
O
A. offspring that inherit only beneficial genes
O
B. offspring that inherit genes from both parents
OC. offspring that are genetically identical to each other
D. offspring that are genetically different from each other
How are intermediates of these pathways converted into lipids for energy storage during the long light?
Anaerobic respiration released less energy than aerobic respiration
True
False
Answer:
True
Explanation:
Anaerobic respiration is done when your doing a physical activity.
Choose one type of heat transfer and provide a different example of it
Answer:
conduction
Explanation:
hot metal when u touch it hurts your hand
Answer:
The three types of heat transfer
Explanation:
Heat is transfered via solid material (conduction), liquids and gases (convection), and electromagnetical waves (radiation). Heat is usually transfered in a combination of these three types and seldomly occurs on its own.
PLEASE HELPPP
from the illustration above classify #1
a: bird
b: fish
c: amphibian
d: insect
e: mollusk
f: mammal
g: reptile
h: none of these
Answer:
#1 is a reptile
Explanation:
I’m pretty sure only reptiles have scales
The classifications of the below-illustrated organisms are as follows:
#1 = Reptile.#2 = Mammal.#3 = Bird.#4 = Amphibian. What are the characteristics of Reptiles?The characteristics of reptiles are as follows:
They perform locomotion through crawling or creeping mode.They are mostly terrestrial animals. Their body is covered by dry and cornified skin. They do not possess external ear openings. Their heart is typically three-chambered, but exceptionally crocodiles have a four-chambered heart.Mammals are mammary glands in order to feed their young ones. Amphibians have the ability to live in both water and terrestrial habitats. They have two pairs of limbs. The Body is divisible into the head and trunk.
Birds are classified into the category of Aves. The presence of feathers is one of the most important characteristics of this type of classification.
Therefore, the classifications of the below-illustrated organisms are mentioned above very briefly.
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What is the ingroup in a cladogram?
Answer:
•Ingroup in biology is a group of taxa that is considered in determining evolutionary relationships. The taxa in an ingroup are closely related. In fact, they are sister groups, and they share a common ancestor. Therefore, taxa in an ingroup are descendants that split from the same node in the cladogram.
Explanation:
i hope it's help
The stem of a plant is experiencing phototropism. Which statement correctly describes the plant's response? (1 point)
the stem moves away light for better photosynthesis
the stem moves towards the light for better photosynthesis
the stem bends to the sides because there are smaller cells on sides
the stem grows upward because Larger cells are growing
Answer:
The stem moves toward the light for better photosynthesis.
Explanation:
I also took this quiz and got this answer
what state of matter is the neutral chlorine-36 isotope
Answer: Chlorine-36 (^36Cl) is an isotope of chlorine.
Explanation: Chlorine has two stable isotopes and one naturally occurring radioactive isotope, the cosmogenic isotope ^36Cl.
During one part of the water cycle, heat from the Sun causes liquid water to change into water vapor, which rises into the atmosphere.
Which statement best describes the reverse of this process?
a) As liquid water falls from the atmosphere to land, it turns into a gas
b) As the Sun's rays warm solid ice, it begins to melt into liquid water.
c) As liquid water from streams and groundwater drains into large bodies of liquid water, it turns to gas.
d) As water vapor meets cooler air, it changes into droplets of liquid water that return to Earth's surface.
Answer:
d 4
Explanation:
Answer:
i think d idrk tho sorry
Explanation:
1 point
The age of the Atlantic Ocean floor is
as it moves away from the ridge.
Answer:
it is 180 million years old
(GIVING BRAINLIEST!!)
How does condensation occur?
A) Water vapor rises from Earth's surface into the sky.
B) Water vapor cools and forms water droplets in clouds.
C) Water droplets fall to the ground from the sky.
D) Water runs across Earth's surface.
Explain why
Answer:
B
Explanation:
Water vapor cools and forms water droplets in clouds.
Answer:
B
Explanation:
Water vapor cools and forms water droplets in clouds.
which describe a liquid
(A) changes shape and volume
(B) changing shape and fixed volume
(C) fixed shape and volume
(D) fixed shape and changing volume
Answer:
b: changing shape and fixed volume
Explanation:
how does the data that Scientists collect get used with climate models? scientists collect data then developed and use models to maken predictions about future climate conditions.
Answer:
To make these predictions, meteorologists use weather data and forecast models to determine current and future atmospheric conditions. Because weather takes place hour by hour, forecast models use current atmospheric and oceanic conditions to predict future weather.