Answer:
B. The number of trophic levels is limited, and typically is less than 10.
C. On average, about 10 percent of available energy is transferred from one trophic level to the next.
D. Among consumers in an ecosystem, first-level consumers have the most available energy
Explanation:
The number of trophic levels are limited. when one available energy is transferred from one trophic level to another trophic level, about 10 percent of energy is transferred whereas the rest of the energy about 90 percent is released in the form of heat energy. The first-level consumers have the most available energy due to higher biomass.
Answer:
Its b, c, d
Explanation:
i just did it.
What would happen if the mitochondria were missing from a cell?
Answer:
We'd be in big trouble...
Explanation:
The mitochondria is the powerhouse of the cell, without mitochondria (singular, mitochondrion), higher animals would likely not exist because their cells would only be able to obtain energy from anaerobic respiration (in the absence of oxygen), a process much less efficient than aerobic respiration.
The absence of mitochondria would have a profound effect on cellular function, including the cell's ability to produce energy, regulate ROS levels, and control important signaling and metabolic pathways. Such a cell would likely be unable to survive for very long.
What is the effect of mitochondrial removal?Without mitochondria, the cell would not be able to generate ATP through aerobic respiration, which takes place in the mitochondria. Instead, the cell would have to rely on other, less efficient metabolic pathways to produce energy. Mitochondria are also important for regulating the levels of reactive oxygen species (ROS) in the cell. Without mitochondria, the levels of ROS would likely increase, leading to oxidative damage to the cell's proteins, lipids, and DNA. Mitochondria play important roles in cell signaling pathways, including those involved in apoptosis (programmed cell death) and calcium signaling. Without mitochondria, these pathways would likely be altered, which could have profound effects on cellular function and survival.
Hence, such a cell would likely be unable to survive for very long.
Learn more about the mitochondrial removal here.
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dna is composed of repeating structual units called
Answer:
The structural units are called base pairs
Explanation:
They're called base-pairs, but if you want to get more specific, Base pairs are usually made of adenine, thymine, guanine, and cytosine.
Answer:
dna is composed of repeating structure units called nucleotides
3. What is the relationship between
adaptation and natural selection?
Answer:
hope it helps...
Explanation:
Evolution is not the same as adaptation or natural selection. Natural selection is a mechanism, or cause, of evolution. Adaptations are physical or behavioral traits that make an organism better suited to its environment. Heritable variation comes from random mutations.
Which organelle should be listed under both in the diagram?
Answer:
animal and plant cells
A statement of fact meant to explain an action or set of actions about nature .
A. Laws
B. Hypothesis
Answer:
A. Laws
Explanation:
Answer:
Laws
Explanation:
A hypothesis is a guess based off of background knowledge while laws are strictly facts.
Which of the following statements best describes the process of photosynthesis?
Answer:
Photosynthesis, the process by which green plants and certain other organisms transform light energy into chemical energy. During photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds.
Explanation:
May i have Brainiest
13. In a forest, why do you rarely see young pine trees growing under a broad-leaved tree, such as a maple? If broad-leaved trees eventually take over a forest as pines die off, how does that affect other organisms living in the forest? How does it affect this forest ecosystem?*
Answer:/Explanation:
Broad leaved trees would block the sunlight due to the size of their leaves. This would reduce the amount of sunlight that the pine tree could absorb, and would therefore inhibit its ability to efficiently perform photosynthesis. This would reduce the amount of food it could synthesise, and interfere with its growth and reproduction.
Without pine trees, the diversity of the ecosystem would be reduced. Several organisms rely on pine seeds and leaves as a food source. In the absence of pine trees, competition for other food sources could increase, and certain birds, squirrels etc. could die off.
Pine trees are also a habitat for many birds and small creatures. Without these trees, these animals could struggle to find efficient shelter.
They need to be in order 1,2,3,4 so on
The broken bone begins to take the shape it had prior to the fracture.
A mass of tissue containing cells that produce collagen fibers forms. These collagen fibers extend across the broken bone and attach the pieces back together.
A hematoma forms at the fractured area.
Osteoblasts and osteoclasts arrive at the fracture and begin to produce bone tissue there.
Answer:
The correct order is:
1. A hematoma forms at the fractured area.2. A mass of tissue containing cells that produce collagen fibers forms. These collagen fibers extend across the broken bone and attach the pieces back together.3. Osteoblasts and osteoclasts arrive at the fracture and begin to produce bone tissue there.4. The broken bone begins to take the shape it had prior to the fracture.Explanation:
After the fracture of a bone several events occur that involve the regeneration and remodeling of the broken bone:
Hematoma in the fracture area is produced by the bleeding of the bone marrow, especially when it occurs in long bones. The collagen fibers are intended to initiate the repair process, trying to join the bone fragments that have separated. The purpose of this is to build a soft tissue base on which the new bone will grow. Osteoblasts and osteoclasts are responsible for the process of ossification and remodeling, respectively. Only a bone scar will remain at the fracture site. With the process of ossification and remodeling, the bone acquires the same shape it had before the injury.This whole process is necessary for the morphological and functional recovery of a bone when it has suffered a fracture.
Answer: 4, 2, 1 , 3 is the order on Edge.
( in case they list it different 1-4 is below)
Explanation: ( in sequence)
1.) A hematoma forms at the fractured area.
2.) A mass of tissue containing cells that produce collagen fibers forms. These collagen fibers extend across the broken bone and attach the pieces back together.
3.) Osteoblasts and osteoclasts arrive at the fracture and begin to produce bone tissue there.
4.) The broken bone begins to take the shape it had prior to the fracture.
A nursing infant is able to obtain disease fighting antibodies, which are LARGE MOLECULES, from its mother's milk. These molecules probably ENTER the cells lining through the baby's digestive track via… * 2 points a. Osmosis b. Diffusion c. Endocytosis d. Exocytosis
Answer:
The correct answer is - option C. endocytosis.
Explanation:
Endocytosis is the transfer process of large molecules from the outside of the cells by internalizing them or engulfing them in vesicles, it is possible by invagination of the surface of the cell to form vesicles.
In an infant, the antibodies like large molecules from the mother to the baby are transferred through the Mother's milk which is entered in the baby's digestive tract via Endocytosis
does breast cancer occur in men? what are the signs and symptoms?
actually anatomy & physiology
Answer:
Yes
Explanation:
Breast cancer can occur in men. Symptoms can include a hard lump in the breast area, nipple discharge, the nipple turning inwards, and/or a rash around the nipple.
Diffusion takes place
Group of answer choices
only through a lipid bilayer membrane.
from an area of low concentration to an area of high concentration.
from an area of high concentration to an area of low concentration.
only in liquids.
[tex]\large\underline{\bf\red{Diffusion:-}}[/tex]
It is the process of movement of substances from a region of higher concentration to a region of lower concentration .
Hence correct option is [ c ] .
More to know about topic .
Diffusion :-
Water from soil is absorbed by plants by Diffusion.Amoeba exchanges Carbon dioxide & Oxygen by the process of Diffusion.It is a form of passive transport .It does not utilises energy .A scientist makes the argument that she has found DNA evidence that shows that evolution does not exist. What would her evidence have to show for her to be correct?
A-Strong genetic similarities in closely related organisms and weak genetic similarities in distantly related organisms.
B-Weak genetic similarities in closely related organisms and strong genetic similarities in distantly related organisms.
C-Strong physical similarities among closely related organisms and also among distantly related organisms.
D-Weak physical similarities among closely related organisms and also among distantly related organisms.
Answer:
B. Weak genetic similarities in closely related organisms and strong genetic similarities in distantly related organisms
Explanation:
just took the quiz
Weak genetic similarities in closely related organisms and strong genetic similarities in distantly related organisms will be an evidence against existence of evolution.
What are the evidence for evolution?The evidence for evolution of species include similarity in the DNA of closely related species as well as similar structural and anatomical features.
Therefore, an evidence to prove that evolution does not exist will be weak genetic similarities in closely related organisms and strong genetic similarities in distantly related organisms.
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Cytokinesis – division of the cytoplasm resulting in two identical d_______________ cells.
Answer: daughter
Explanation: Cytokinesis results in the division of cytoplasm in a parental cell, creating 2 identical daughter cells.
Hope this helps!
Cytokinesis, the division of the cytoplasm resulting in two identical daughter cells, is caused by the mitosis process, as here the two daughter cells get an equal amount of the genetic contents.
What is the significance of cytokinesis in mitosis?It is very important in mitosis because it aids in the division of two cells from one cell during the cell division process and results in the formation of two genetically identical daughter cells; without cytokinesis, the chromosomes would remain in the same cell, resulting in mutation as multinucleated cells are formed in such a process.
Hence, cytokinesis, the division of the cytoplasm resulting in two identical daughter cells, is caused by the mitosis process, as here the two daughter cells get an equal amount of the genetic contents.
Learn more about the cytokinesis of mitosis here.
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3RD TIME ASKING THIS QUESTION!!!!!!!!!!! I WILL GIVE BRAINLEST
Sickle cell anemia is a genetic disease that affects the red blood cells. Your red blood cells are typically donut shaped
and have the job of carrying oxygen around your body. In people with sickle cell anemia, the blood cells become
crescent-shaped and are thick and sticky. They are not as able to carry oxygen, and can even get clogged in the blood
vessels blocking the flow of blood, and therefore oxygen to organs, causing pain and organ damage.
Sickle cell is caused by a genetic mutation that changes a single glutamic acid to valine in the 6 th amino acid position.
Examine the codon chart provided above (for #s 3-5), and determine what mutation likely occurred to cause the
change from glutamic acid (GLU) to valine (VAL). To help get you started, it is helpful to know that a person with
NO sickle cell at amino acid #6 has a DNA code of CTC. (4pts)
Normal RNA: ____________, Normal amino acid made: ___________
Mutated RNA: ___________, Mutated amino acid made: ___________
What type of mutation is this? ________________________________
what do you think about this
Answer:
I would conclude the the answer is D. Sugar, Glucose, and Starch.
Explanation:
Hopefully this helps! If this wasn't the answer you were looking for please don't hesitate to private message me or comment here. Have a nice day/night! :)
PLEASE HELP ME! 70 points
Answer:
1. Nucleic Acid
2. The Nitrogenous Base
Explanation:
Which of these statements is true regarding the use of testimony on hair samples in courts today?
A.) Hair samples are replacing DNA as an easily available, go-to source for identifying suspects.
B.)Modern changes in the discipline mean that any police officer can provide testimony on hair samples.
C.) Hair samples are necessary for most convictions.
D.) There's solid research that should lead us to be skeptical of testimony based on hair samples.
Answer:
Answer:A
Explanation:
why is the SI measurement system so important to the scientific community
enter the answer in the space provided
Answer:
without the ability to measure, it would be difficult for scientists to conduct experiment of form theories and also the chemical industry, it is also essential in farming, engineering, construction, manufacturing, commerce and numerous other occupation and activities.
An astronaut leaves Earth's surface and begins orbiting Earth. How will his departure from Earth affect his mass and weight?
A:His mass and weight will remain constant.
B:His mass will increase; his weight will decrease.
C:His mass will decrease; his weight will increase.
D:His mass will remain constant; his weight will decrease.
His departure from Earth will affect his mass and weight by the mass
remaining constant and his weight decreasing.
Gravitational force is present on earth's surface and is responsible for
pulling bodies towards each other. It is also responsible for objects falling to
the ground thereby making them remain there.
Weight is calculated by mass multiplied with gravitational force. The
gravitational force on a body decreases with increase in altitude which is
why mass remains constant and his weight decreases.
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A scientist mixes a solid and a liquid.
The mixture gets warmer and has bubbles.
What do we know from this evidence?
A) That a reaction happened because it is warm with bubbles
B) That a reaction did not happen because it is warm with bubbles
C) That A reaction happened because there was no color change
D) That A reaction did not happen because there was no color change
Answer:
A
Explanation:
Signs of chemical reaction
Can someone please help me I really need help
Answer:
A.
Explanation:
Criticizing would be the downfalls of the edible vaccines. That means A is the only good thing there. Therefore, A is not criticism of edible vaccines.
Which of the following correctly describes how glucose becomes the product of a chemical reaction?
O Photosynthesis creates glucose using energy, a solid, and a liquid.
O Photosynthesis creates glucose using energy, a gas, and a liquid.
O Cellular respiration creates glucose using a gas and a liquid.
O Cellular respiration creates glucose using a solid, and a liquid
Answer:
[tex]\boxed {\tt B. \ Photosynthesis \ creates \ glucose \ using \ energy, \ a \ gas,and \ a \ liquid}[/tex]
Explanation:
Glucose is made in the process of photosynthesis. It is used in cellular respiration, but not made. So we can eliminate choices C and D.
Now, let's analyze the photosynthesis equation so we can pick between A and B.
6CO₂+6H₂O+light energy ⇒ C₆H₁₂O₆+6O₂
A gas (carbon dioxide), a liquid (water) and energy are used to make glucose and oxygen.
No solids are used, so we can eliminate choice A. We are left with choice B. Photosynthesis creates glucose using energy, a gas, and a liquid.
True or false: Plants release oxygen by taking CO2 and sunlight?
Answer:
True
Explanation:
Answer:
Yes this is true
Explanation:
Why are the tais pointing inward in layer H
Answer:
Because they are hydrophobic
Explanation:
The image shows a cell membrane, which is made up a phospholipid bilayer. The phospholipid bilayer is made up of a phosphate head, which is hydrophillic, and fatty acid tail, which is hydrophobic. That means they are repelled by water.
Because the tails are hydrophobic, they are repelled by the water towards one another, while the heads remain facing outwards,
PLS HELP!!
WHAT is the meaning of biology? how does chemistry and biology related???
Answer:
Biology is the study of living things.
Chemistry is the study of elements and their properties, reactions, bonds...
Explanation:
What is the climate like in the Yellowstone forest?
Answer:
maybe it helps
Explanation:
Daytime temperatures are often around 70°F (25°C) and occasionally 80°F (30°C) at lower elevations. Nights are usually cool and temperatures may drop below freezing at higher elevations.
if a person laughs too much can they vomit out their intestine
Answer:
no
Explanation:
they didn't vomit instead they cannot breath or not remember to breathe when a person laughs too much
Answer:
Not only vomiting out their Intestine
Laughing too much can kill you too....
< Exit
Read Ch. 2.2: Limits to Growth (pgs. 46-51)
LUTE
3. What happens to a population in response to a density-independent limiting factor?
NOTEBOOK
B I U
iii
1000
Close
Answer:
............ sorry i don't now
this is part 2 from the question
please answer it and if you can answer part 1 ftom the question and thank you
2 Label each of the diagrams below to show whether the seeds are spread by exploding pods, wind,
water or animals.
Answer:
I think The seed is forming into a flower or The seed is forming into a fruit.
Explanation:
The seed was forming into a plant.
Which option is an example of an automatic regulatory reaction?
A. sweating
B. burrowing underground
C. taking in more calories
D. wearing a jacket
Answer:
A. Sweating
Explanation:
I just took it <3
The option which is an example of an automatic regulatory reaction is: A. sweating
Automatic regulation can be defined as a biological process that occurs within many living organism due to the function of an internal adaptive mechanism that typically works to mitigate (lessen or adjust) its system's response to stimulus.
Generally, the body organs and system that are considered to carry out some degree of automatic regulation are:
The brain.The heart.The kidney.Hence, an automatic regulatory reaction is a biological process that happens in response to other bodily process and stimuli.
For instance, the nervous system produces an automatic regulatory reaction to emotions (fear), illness and heat such as sweating.
Sweating is an automatic regulatory reaction of the human body to protect and mitigate the effects of an extreme change in temperature (heat).
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