The answer is C. guanine and cytosine.
Which characterization accurately describes BOTH regular fossils and index fossils?
(A) Both kinds of fossils are found only on the floor of the ocean.
(B)
Both kinds of fossils are used to define periods in geologic time.
(C)
Both kinds of fossils are distinctive and widespread.
(D)
Both kinds of fossils have information about the time period they came from.
Answer:
D
Explanation:
Fossils tell us where they came from.
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Choose the word that best completes each sentence.
Angiosperms’ ₋₋₋₋anchor them in the ground and absorb water for the plant. Their stems provide support to the plant and connect the roots and leaves. Their
------capture the sun’s energy and use it to make food through the process of photosynthesis. Angiosperms’₋₋₋₋₋₋contain the reproductive parts of the plant.
Their₋₋₋₋₋₋₋ protect and help spread the seeds.
Answer:
roots
leaves
flowers
fruits
Explanation:
Plz make me the brainlist
Answer:
roots
leaves
flowers
fruits
Explanation:
PLS HELPPP NEED THIS NOW
Answer:
what do you need help with
Explanation:
What is the cellular mechanism of tuberculosis? (Explain)
I need the answer to this question please if you know it
Answer:
the answer is C,
Explanation:
A forest food web is shown in the picture below. How can producers be identified in this food web
a) producers are any organism below the top consumers.
b) producers always have arrows pointing toward them but no arrows coming from them.
c) producers are any organism on the food web since they all undergo metabolic reactions.
d) producers are the autrographs that make their own food and have no arrows pointing towards them.
Answer: the answer is A, producers are any organism below the top consumers
Explanation:
its the most obvious answer there is and producers give the consumers energy and what ever eats them, its just acycle
Cells without a cell wall will form a_________to separate the cytoplasm in cytokinesis, while cells with a cell wall will form a ________to separate the cytoplasm in cytokinesis
Answer:
Contractile ring, sterols
Explanation:
In cells such as animal cells that lack cell walls, cytokinesis follows the onset of anaphase. A contractile ring composed of actin filaments forms just inside the plasma membrane at the former metaphase plate. The actin filaments pull the equator of the cell inward, forming a fissure.
Examples of bacteria that lack a cell wall are Mycoplasma and L-form bacteria. Mycoplasma is an important cause of disease in animals and is not affected by antibiotic treatments that target cell wall synthesis. Mycoplasma acquire cholesterol from the environment and form sterols to build their cytoplasmic membrane.
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Cells without a cell wall will form a furrow to separate the cytoplasm in cytokinesis, while cells with a cell wall will form a cell plate to separate the cytoplasm in cytokinesis, as the cell division of the plant is different from the animal.
What is the significance of the cell wall?It has the structural components of the plant cell that surround the cell membrane of many types of cells and a protective barrier that supports and maintains the shape of the cell, and due to its rigidity, the cleavage furrow does not form but the cell plate is formed.
Hence, cells without a cell wall will form a furrow to separate the cytoplasm in cytokinesis, while cells with a cell wall will form a cell plate to separate the cytoplasm in cytokinesis, as the cell division of the plant is different from the animal.
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All of the following are examples of regulating services except
The chemical equation for photosynthesis shown below . Which of the following statements about photosynthesis is true?
Answer
The equation is glucose + oxygen ® carbon dioxide + water and energy is produced in the form of ATP.
How can apoptosis be defined?
Cell death
Cell growth
O Complete mitosis
O Incomplete mitosis
Answer:
It would be cell death.
Choose of the following best describe tropism.
A: Tropism is the only cause for plant growth.
B: True tropism requires plants to grow.
C: Tropism causes plants to produce tropism.
D: Tropism will cause plants to react to both internal and external stimuli.
Answer:
a
Explanation:
Answer:
B) True tropism requires plants to grow.
Explanation:
I got 100% with this answer!
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The process in which traits are passed from parents to offspring is
Answer:
genes/DNA
Explanation:
Select all of the organ systems that are directly part of our immune system?
2 H202 ----...---> 2 H20 + 02
hydrogen peroxide
water orygen
1. *What is the enzyme in this reaction?
a. Hydrogen peroxide
b. Catalase
c. Water
d. Oxygen
Answer:
The enzyme is b. Catalase
Explanation:
Catalases are ubiquitous biological catalysts or enzymes, that speed up reaction rates. Here, they mediate hydrogen peroxide decomposition into water and oxygen. They are essential in organisms on Earth exposed to oxygen as they protect cells from oxidative damage.
2 H2O2 -----→ 2 H2O + O2hydrogen peroxide water + oxygen
Reactive oxygen species, or free radicals are very reactive- they can cause damage to DNA molecules, RNA and proteins, leading to cell death.
What is the cellular mechanism of tuberculosis? (Explain)
Which symptom is associated with schizophrenia?
is there such thing as too much ATP
Answer: I'm pretty sure.
Brainliest?
Answer:
I think yes...when you have too much ATP the cell gets destroyed
Explanation:
Which of the following is the current era?
O A. Paleozoic
O B. Mesozoic
O C. Precambrian
O D. Cenozoic
Answer:
Cenozoic era refers to the geological time period that extends from 65 million years ago to present-day.
The current era is Cenozoic era. Therefore, option (D) is correct.
What is Cenozoic era?The Cenozoic era started around 66 million years ago and is also known as the Age of Mammals because it is characterized by the diversification and dominance of mammalian life on Earth during that time. The Cenozoic era began around 66 million years ago. Following the Mesozoic era, also known as the Age of Dinosaurs, and the Paleozoic era, which came before it, the Cenozoic era is the third and most recent era of the Phanerozoic Eon (Age of Invertebrates).
The Cenozoic era can be further subdivided into three distinct periods: the Paleogene, the Neogene, and the Quaternary. The Quaternary period, which began approximately 2.6 million years ago and is characterized by the occurrence of ice ages and the evolution of early humans, is the period in which we are currently living..
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2.
Elements found in which shaded area of this periodic table are the most stable and unreactive
F
S
G
O
H
R
J
Copyrig
Answer: T
Explanation:
Elements found in the shaded area T are the most stable and unreactive elements there are. They are known as Nobel Gases and are unreactive because their outer shells are full which means that they do not need to bond with other elements to obtain stability.
The Nobel Gases are: Helium, Neon, Argon, Krypton, Xenon, and Radon.
Explain how switching off water supply would affect the industries that depend on water
Explanation:
Access to a fresh water supply is affected by the following factors.
Climate. Low levels of rainfall and high temperatures lead to water deficits . ...
Geology. Rainfall flows down to the rocks beneath the ground. ...
Pollution. ...
Over-abstraction. ...
Limited infrastructures. ...
Poverty. ...
Politics. ...
Impacts on water insecurity.
1. Select the statement that pertains to an issue with the Green Revolution.
O The Green revolution has caused a loss of tradition.
O The Green revolution has caused a decrease in energy production.
O The Green revolution has led to many people dying of hunger.
O The Green revolution has caused a considerable number of people to be unemployed.
Answer:
O The Green revolution has caused a decrease in energy production.
O The Green revolution has led to many people dying of hunger
Explanation:
How many days are required for the Moon to complete a cycle of phases from the new Moon position represented in the diagram to the new Moon the following month?
1
22d
2
27.3d
29.5 d
4
365.26 0
Please help.
Answer:
29.5 days
Explanation:
However, it takes our Moon about 29.5 days to complete one cycle of phases (from new Moon to new Moon). This is called the synodic month. The difference between the sidereal and synodic months occurs because as our Moon moves around Earth, the Earth also moves around our Sun.
Anyone know the answer ?
The dotted choices are
- Advantage of Asexual reproduction
- Disadvantage of Asexual reproduction
- Advantage of sexual reproduction
- Disadvantage of sexual reproduction
Answer:
advantages of sexual reproduction:
it produces variation in the offspring
the species can adapt to new environments due to variation, which gives them a survival advantage
a disease is less likely to affect all the individuals in a population
disadvantages of sexual reproduction:
time and energy are needed to find a mate
it is not possible for an isolated individual
advantages of asexual reproduction
the population can increase rapidly when the conditions are favourable
only one parent is needed
it is more time and energy efficient as you don't need a mate
Disadvantages of asexual reproduction
it does not lead to variation in a population
the species may only be suited to one habitat
disease may affect all the individuals in a population
Explanation:
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Soil erosion occurs___
A. where animals eat away all the plants
b. when forests are removed
C. on steep slopes
d all of the above
Answer:
all the above are correct
Answer:
I think is: B
Explanation:
Sorry if I'm wrong
What best defines an extensive property of a substance?
Answer:
measurable and observable
Explanation:
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Which of the following is an example of an organism's response to an internal stimulus in order to maintain homeostasis?
A. A predator scares a rabbit and he runs for safety.
B. The temperature drops in Canada so the birds migrate south.
C. A bird is hungry so he searches for food.
D. The Sun causes a plant to increase its temperature.
E. A student feels the outside cold temperatures and puts on a hoodle.
a. A drug store receipt is 22 inches long. Convert this length into kilometers
Base your answers to the following questions on the diagram below and on your knowledge of science. The diagram represents a plant carrying out photosynthesis.
Answer:
1. Sunlight
2. (pick one I guess) cell division or protein synthesis
Explanation:
importances of magnesium in our body
Why do our bodies rearrange the food we eat and the oxygen we breathe (O2) into carbon dioxide (CO2) and water (H2O)?
a
In order to release the energy found in food.
b
In order to eliminate the calories found in food.
c
In order to remove excess water in the body.
d
In order to release the matter found in food.
Answer:
A. in order to release the energy found in food.
Explanation:
Every cell in your body needs oxygen to function. You get the oxygen your cells need from the air you breathe. The air you breathe is made up of 20 percent oxygen. The rest of the air is mostly nitrogen (79%). Your body cells use the oxygen you breathe to get energy from the food you eat. This process is called cellular respiration. During cellular respiration the cell uses oxygen to break down sugar. Breaking down sugar produces the energy your body needs. This is very similar to wood burning in a fire. As the wood burns, it combines with oxygen and releases heat energy and carbon dioxide. When the cell uses oxygen to break down sugar, oxygen is used, carbon dioxide is produced, and energy is released. But instead of heat energy, much of the energy produced in cellular respiration is stored chemically for the cell to use later. Carbon dioxide is the waste product of cellular respiration that you breathe out each time you breathe. Blood picks up oxygen and releases carbon dioxide in the lungs. The opposite takes place in the cells where the blood releases oxygen and picks up carbon dioxide.