Answer:
the one beetle that was introduced to the island is the common ancestor of all of the beetles of that species on the island showing founder effect (genetic drift)
Explanation:
Maybe this is right
Just take the test
Which process occurs only in autotrophs and never in heterotrophs?
A. protein synthesis
B. food digestion
C. cellular respiration
D. photosynthesis
Answer:
D
Explanation:
Most autotrophs make their "food" through photosynthesis using the energy of the sun. Heterotrophs cannot make their own food, so they must eat or absorb it.
The process that occurs only in autotrophs and never in heterotrophs is photosynthesis. The correct option is D.
What are autotrophs and heterotrophs?Autotrophs are organisms that produce their own food, which means they do not need to hunt or look for food, such as plants.
Heterotrophs are animals that are unable to produce their own nutrients, so they must rely on an external source of energy, which they obtain through hunting, scavenging, and other means.
Photosynthesis only occurs in autotrophs, as they produce their own food through this process. Most autotrophs obtain their "food" by using the energy of the sun via photosynthesis. Heterotrophs are unable to produce their own food, thus they must consume it or absorb it.
Therefore, the correct option is D. photosynthesis.
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Which statement correctly describes the rock cycle?
a Igneous rock can only form by heat and pressure.
b Magma can only form by compaction and cementation
c Igneous rocks form from volcanoes
d Metamorphic rocks form by weathering, erosion and then deposition.
i need help please asappppp!!!!
Answer:
Option A is the answer, that is, molecules of red ink move through the membrane by diffusion.
Explanation:
This is because diffusion is the movement of molecules from a region of higher concentration to a region of lower concentration.
describe two major functions of roots. explain why these functions are important to the plant
Answer:
The root is a very important part of the plant that has two main functions: To hold the plant to the ground and to absorb water and mineral salts from the soil.
Explanation:
The root is the organ of the plant that is frequently located underground, since it presents positive geotropism. The roots penetrate several layers of the soil, bind the earth with their branches and adhere by means of absorbent hairs to the soil particles, fixing the plant and ensuring its stability, that is, they prevent it from being dragged by the wind, and provide the vegetable of a base for its correct growth. The root is the organ specialized in absorbing water and minerals (raw sap) from the soil, mainly through the absorbent hairs, and conducting it towards the stem. The water circulates through the stem until it reaches the leaves. Small tubes called capillaries are involved in this process.
When did the Devonian period begin?
Answer:
419.2 (+/- 3.2) million years ago
Explanation:
419.2 (+/- 3.2) million years ago
(GIVING BRAINLIEST!!)
Which of the following is an example of a difference between planets in the solar system?
A) A planet can have a surface made of either liquid or gas.
B) Some planets have thick atmospheres, while others have thin atmospheres.
C) A planet must have a moon, but it can differ in terms of its size.
D) All planets have rings, but some are very hard to see with your eyes.
Answer:
A
Explanation:
others answers give variables that still apply to planets
An example of a difference between planets in the solar system is some planets have thick atmospheres, while others have thin atmospheres. The correct option is B.
What is a solar system?The Solar System is made up of the Sun and the planets that orbit it, including Earth. Other planetary systems are occasionally referred to as exoplanetary systems.
A group of gravitationally bound non-stellar objects in or out of orbit around a star or star system is known as a planetary system.
Some planets have thick atmospheres, while others have thin atmospheres. These planets have different densities, some planets are gaseous and some are solid.
Therefore, the correct options are B). Some planets have thick atmospheres, while others have thin atmospheres.
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What is gene flow and how does it attect the gene pool?
(does it increase or decrease genetic variation?)
Answer:
Gene flow, also called gene migration, the introduction of genetic material (by interbreeding) from one population of a species to another, thereby changing the composition of the gene pool of the receiving population. The introduction of new alleles through gene flow increases variability within the population and makes possible new combinations of traits. In humans gene flow usually comes about through the actual migration of human populations, either voluntary or forced.
Ultraviolet radiation can be felt as heat.
O True
O False
Answer:
its true.
Explanation:
have a nice day :)
Livestock emissions can lead to acid rain.
True or false ?
Answer:
true i think
Explanation:
What is most likely to occur with this recombinant DNA? Question 1 options:
a.The goat will begin to produce a single protein made by a spider
b.The goat will not recognize the spider gene since it is from a different species of organisms
c.The goat will begin to produce all proteins that a spider can produce
d. The spider will produce proteins made by the goat
80 points and brainleast
Which substances are acids? Check all that apply.
(1)AgOH
(2)HF
(3)NiOOH
(4)NH4OH
(5)HMnO4
(6)Zn(OH)2
Answer:
Numbers 5, and I think 2 the rest are bases
Explanation: * Remember H+ is acids and OH- is base :)
Answer:
(1),(2),(5),(6)
Explanation:
when should you waft a chemical?
Answer:
When you are in the laboratory and take a direct sniff of the chemicals you are using, you run the risk of damaging your mucous membranes or your lungs. When it is necessary to smell chemicals in the lab, the proper technique is to cup your hand above the container and waft the air toward your face.
Explanation:
Have A Wonderful Day !!
Which molecules are inputs in photosynthesis?
Answer:
CO2 and H2O
Explanation:
the photosynthesis equation is
6CO2 + 6H2O --> C6H12O6
co2 and h2o are before the yield sign so they are inputs
5. Two bodily structures, found in different species, have different
internal bone structures but serve a similar purpose in each organism. BLS4.1
A-homologous structures
B-Vestigial structures
C-analogous structures
D-natural selection
Answer: Natural Selection
Explanation:
Due to evolution, two bodily structures, found in different species, having different anatomical structures develops to perform a similar purpose in each organism indicates analogous structures.
What is evolution?"Evolution is the change in the characteristics of a species over several generations and relies on the process of natural selection."This results in formation of new species.What is anatomical structure?"An anatomical structure is any biological entity that occupies space and is distinguished from its surroundings."The anatomical structures include: vestigial (structure not in use reduces in size over the time), homologous (same structures having, different function) and analogous structure.What is analogous structure?The two structures from different origin developed in same directions for adaptation to same needs are called analogous structure i.e., different structure develops to perform a same function.The feathered limbs of one species and the wings of another perform same function i.e., helps them to fly.
Hence, the correct option is C- analogous structures.
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Anton van
Leeuwenhoek used his
microscope to...
Answer:
Antonie van Leeuwenhoek used single-lens microscopes, which he made, to make the first observations of bacteria and protozoa. His extensive research on the growth of small animals such as fleas, mussels, and eels helped disprove the theory of spontaneous generation of life.
Mr.Goldsmith suggested that animals must capture energy from their environment. A example of this would be___
Answer:yes
Explanation:
Yes
What phase of the cell cycle is this cell in?
Answer:
That’s cell is in prophase! Hope this helps!
Explanation:
which part of a lake is most likely to have no photosynthesis?
littoral zone
biotic zone
benthic zone
limnetic zone
Answer: The Benthic zone would most likely be the part of a like wherein it is mostly aphotic in nature. In addition, the benthic zone is usually located at the bottommost layer of the lake wherein it is usually characterised by having sediments that support huge amounts of vegetation on the layer.
Explanation:
Answer:
benthic zone
Explanation:
The movement of negative charges between nonconducting objects that are touching is called transferring charge by
-Conduction
-Contact
-Induction
-Polarization
The movement of negative charges between nonconducting objects that are touching is called transferring charge by Conduction.
In which environment would mineral formation caused by high pressures and high temperatures most likely occur?
a lava flow
deep within Earth
a cave
the ocean
How was Carlos Linnaeus important to evolutionary biology
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Swedish naturalist and explorer Carolus Linnaeus was the first to frame principles for defining natural genera and species of organisms and to create a uniform system for naming them, known as binomial nomenclature
PLSSSS HELP ASAP
Body systems interact with one another to carry out life processes. When we eat food, it is broken down into nutrients that can then be used by body cells for metabolic processes and building cellular structures. Many body systems are involved in this process. Select the body systems that would NOT be involved in the breakdown and utilization of nutrients.
Answer:
Reproductive System
All the body systems have one role or the other to play in digestion and absorption. Even the excretory system removes waste and toxins from the body, leaving the useful materials.
However, the reproductive system is not actively involved in digestion.
Cathy placed a sample of yeast, a single-celled eukaryote, in a closed test tube containing a solution of glucose. How will the composition of the air in the test tube change as the yeast interacts with the glucose?
A) The oxygen level will increase.
B) The carbon dioxide level will decease.
C) The carbon dioxide level will increase.
D) The level of carbon dioxide and oxygen will remain the same.
Answer:
The answer is C
Explanation:
In the presence of oxygen, yeast undergo aerobic respiration and convert carbohydrates (sugar source) into carbon dioxide and water.
Hope it helps.
The level of carbon dioxide will increase.
• In the given case, yeast will go through the process of aerobic respiration and convert the glucose present into the usable energy form.
• The majority of the prokaryotes and eukaryotes utilize aerobic respiration to get the energy from glucose.
• In the process of aerobic respiration, the catabolism of glucose will occur, which will convert it into water, carbon dioxide, and energy.
• In the process, molecular oxygen is the ultimate electron acceptor.
• Therefore, in the given case, with the interaction of yeast with the glucose, the level of carbon dioxide in the test tube increases.
Thus, the correct answer is option C.
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2 reasons why people might selectively breed cats
Other then to stop allergies
Answer:
to keep the icosystem bidiversted
What would happen to a plant if many of its cells are plasmolysed?
Answer:
pressure decreases to the point where the protoplasm of the cell peels away from the cell wall, leaving gaps between the cell wall and the membrane and making the plant cell shrink and crumple.
which statement best describes molecular structure of protein, along with one of the functions of proteins?
Answer:
It is a complex, folded chain that helps regulate cell processes.
Explanation:
on edge 2020 exam
Answer:
It is a complex, folded chain that helps regulate cell processes.
Explanation:
Edg 2021
Which of the following is NOT a true statement about the kidneys?
A) Blood leaves the kidneys through the ureter
B) The kidneys filter about 2,000 L of blood
C) The kidneys contain microscopic filters that clean the blood
D) A concentrated mixture of waste materials are collected in the kidneys of excretion
In a certain population of rabbits the allele for brown fur is dominant over the allele for white fur if 10 out of 100 rabbits have white fur what is the allele frequency for the dominant allele
A) 0.68
O
B) 0.10
O
C) 0.95
O
D) 0.90
The Hardy-Weinburg equation is p + q = 1, or p^2 + 2pq + q^2 = 1, where p is dominant and q is recessive. If 10 out of 100 rabbits have white fur, 10% of the rabbits have white fur. Therefore, 90% of the rabbits have brown fur, which can be substituted into the first equation to become 0.9 + 0.1 = 1. Now that we know what p and q equal, we can solve the rest of the equation.
0.9^2 = 0.81
0.9 * 0.1 * 2 = 0.18
0.1^2 = 0.01
Therefore, the allele frequency of the recessive allele is 0.1
Answer:
B 0.10
Explanation:
Which internal structures of animals are specifically adapted to use
contraction to cause movement
A.Blood cells
B.Bones
C.Glands
D.Muscles
Answer:
D. muscles
Explanation:
They are adapted to contraction due the elastic cella
internal structures of animals are specifically adapted to use contraction to cause movement muscle. They are adapted to contraction due the elastic cell
what are the types of muscle ?Three major types of muscles are skeletal muscle, smooth muscle and cardiac muscle.
Skeletal muscle, attached to bones, responsible for skeletal movements. where the peripheral portion of the central nervous system (CNS) controls the skeletal muscles.
The unit is the muscle fiber with many nuclei, these are either striated and each acts independently of neighboring muscle fibers.
Smooth muscle located in the walls of the hollow internal organs like blood vessels, the gastrointestinal tract, bladder, and uterus which is under control of the autonomic nervous system.
Cardiac muscle present in the heart wall under control of the autonomic nervous system, it has one central nucleus, like smooth muscle, is striated, like skeletal muscle, rectangular in shape. The contraction of cardiac muscle is involuntary, strong, and rhythmical.
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If similarities between two structures in different organisms reflect independent evolution, these structures are
Answer: small
Explanation:
