Some animals that live in the desert don't move often, if at all, during the day in order to conserve water and energy. This seasonal
behavior is best described as which of the following?
Answer:
Estivation
Explanation:
Estivation is like hibernation where the animal stays dormant to lower metabolic rate, or in other words conserve energy. It is different from hibernation because unlike hibernation which is done during cold seasons, estivation is an adaptation to hot seasons or hot days.
Answer:
C) Estivation
Explanation:
A forest fire destroys an area. A small population of trees and a large population of birds are both affected. Which type of limiting factor causes this?
density dependent
density independent
population dependent
population independen
The correct answer is B. Density independent
Explanation:
In biology, factors that limit a population are known as density limiting factors. These factors are classified into density-dependent if they affect populations with a high density such as predation or food availability or as independent if they affect different populations of animals despite their density which includes mainly disasters such as fires or floods.
This means the forest fire described is a density-independent factor because the population of birds and trees were reduced or limited but this did not occur because of the density of the population as all species in the forest are affected no matter if the population if high or low.
Why is it a good idea to study experimental subjects in their natural
environment?
A. So that they respond to the test as they would under normal
conditions
B. So that no one else will know what is being studied
ООО
c. So that the experiment is cheaper and easier to conduct
D. So that a specific problem can be solved as quickly as possible
Answer: A. So that they respond to the test as they would under normal
conditions
Explanation:
It is a good idea to study experimental subjects in their natural environment because they respond to the test as they would under normal conditions (Option A).
A good experiment usually has into account all the variables that can affect the variable to be measured (i.e., the dependent variable).Thus, it is more suitable to test a hypothesis (either reject or confirm) only when having into account all variables that might affect the experimental group in normal conditions.A good experiment also uses a control group in order to make comparisons with the experimental group.A control group is defined as an experimental group consisting of subjects/individuals who do not receive the experimental treatment.In conclusion, it is a good idea to study experimental subjects in their natural environment because they respond to the test as they would under normal conditions (Option A).
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The thermostat in a house regulates heat. When the air in a room reaches a predetermined temperature, the thermostat turns off the heat. What type of example is this?
positive feedback
negative feedback
neutral feedback
Answer:
neutral feedback
What is the taking in of food is called
Answer:
Digesting / digested
Explanation:
I think that's what it's called.
Answer:
Eating or digestion
Explanation:
When you put food in your mouth and it digestives it's called eating. When food goes through the digestive system you get energy. Everyone does it and needs it to survive. Ex. right now i'm eating pretzels and considering eating chips.
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- A. Hazle
a structure that is found in a plant cell and not in an animal cell is a ?
central vacuole
mitochondrion
nucleus
ribosome
A structure that is found in a plant cell and not in an animal cell is a central vacuole.
Option A
Explanation:
Plant cells are different from animal cells because a large central vacuole is present in the plant cell which is filled with water and salts to create a turgor pressure which gives the cell the physical strength to overcome the water pressure. The central vacuoles are not present in the animal cells but there are small vesicles which transports the molecules from surface to cytoplasm or vice versa.
Which statement is correct?
The number of electrons of a neutral atom always equals the number of protons.
The number of neutrons always equals the number of protons.
The number of neutrons always equals the number of electrons.
Atomic weight is identical to atomic mass.
Answer:The number of electrons of a neutral atom always equals the number of protons
Explanation:
Answer:
The number of electrons of a neutral atom always equals the number of protons.
What problem would a person most likely have if her kidney did not work
correctly?
They would most likely suffer from blood problems and/or urination problems
Some plants rely on the wind to reproduce an example is the___. It’s important for plants to use the forces of nature to reproduce because they_____.
1. 1a White tuft of dandelion seeds 2a spiked burrs surrounding seeds 3a hard shell on a walnut?
2. 1b require pollination to reproduce 2b reproduce only asexually 3b cannot move about freely?
Answer:
1a and 3b.
Explanation:
I don't know if I read that right, but dandelion tufts blow away and plant because of the wind, otherwise they cant move freely.
Answer:
1. 1a White tuft of dandelion seeds
3b cannot move about freely
Explanation:
The White tuft of dandelion seeds refers to the feathery filaments and seeds. It is carried along with moving air away from the parent plant. The wind carries the seeds of dandelion to other places. Once the seeds find suitable substratum and growth conditions, they germinate and form a new plant.
Since plants can not move from one place to another in search of better growth conditions and substratum, they depend on air, water, other animals, etc. for dispersal of their seeds.
PLS HELP !!!!!! The table below shows the role of different substances during photosynthesis.
Substance Role During Photosynthesis
Glucose Stores chemical energy
Water Combines with glucose to form carbon dioxide
Chlorophyll Traps sunlight
Which of the following statements would correct one of the roles listed in the table?
Glucose combines with carbon to form water.
Chlorophyll reacts with light to produce carbon dioxide.
Water combines with carbon dioxide during photosynthesis.
Chlorophyll stores chemical energy needed for photosynthesis.
The correct statement that should replace the incorrect one in the table is 'Water combines with carbon dioxide during photosynthesis'. This process uses water and carbon dioxide to produce glucose and oxygen under the influence of sunlight and chlorophyll.
Explanation:In the table about the role of different substances during photosynthesis, there is a mistake. The role of water is incorrectly listed. The correct statement should be 'Water combines with carbon dioxide during photosynthesis'. In this process, water and carbon dioxide are used to produce glucose and oxygen under the influence of sunlight and chlorophyll. Glucose is the form in which the energy from the sun is stored, and oxygen is the byproduct of the process.
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Which structure is found in all cells?
Answer:
All cells have a plasma membrane, ribosomes, cytoplasm, and DNA.
Explanation:
The structures that are found in all types of cells are the cell membrane, ribosomes, cytoplasm, and DNA\
In biology, the smallest unit can live on its own and that makes up all living organisms and the tissues of the body. A cell has three main parts: the cell membrane, the nucleus, and the cytoplasm. The cell membrane surrounds the cell and controls the substances that go into and out of the cell. The nucleus is a structure inside the cell that contains the nucleolus and most of the cell’s DNA. It is also where most RNA is made. The cytoplasm is the fluid inside the cell. It contains other tiny cell parts that have specific functions, including the Golgi complex, the mitochondria, and the endoplasmic reticulum. The cytoplasm is where most chemical reactions take place and where most proteins are made. The human body has more than 30 trillion cells.
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Which of the following diagrams best represents a mixture?
A.
image
B.
image
C.
image
D.
image
Help Pleaseeee
Answer:
b
Explanation:
The greatest way to illustrate mixtures in chemistry is to physically mix several compounds together. Diagram A is the most accurate representation of mixture.
Option A is therefore correct
How do we explain?Combinations that physically blend forms of substances that do not exhibit chemical bonding and may be separated using physical methods are referred to as mixtures. The materials are not all the same. Examples of mixtures are gases and sugar or salt that has been dissolved in water.
The heterogeneous mixture is referred to as varied, and the uniform composition is referred to as homogeneous. Unlike the previous pictures, which show compounds and molecules, the first diagram shows a mixture since it is composed of different subtypes.
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What happens when two nitrogen atoms share electrons
Your answer would be A, they form a covalent bond.
We can rule out B and C, as they require completely different elements. An oxygen molecule is made up of what it sounds like, oxygen, and a water molecule, 2 hydrogens and 1 oxygen. Therefore, it is neither of these.
When you look at the two other choices, you can see they are both bond types. An ionic bond is the exchange of an electron and the subsequent attraction between the positive and negative charges, while a covalent bond is the sharing of electrons. When you look at the question, it specifically states "when they share electrons", meaning that the bond that forms is a covalent bond.
Hope this helped!
Answer:
A. THEY FORM A COVALENT BOND
Explanation:
Have a nice day :)
Which is a group of tissues that work together to carry out a common function?
cell
organ
organelle
organ system
Answer:
organ
Explanation:
An organ is a group of tissues that work together to carry out a common function?.
Answer:
organ
Explanation:
The exoskeleton of insects is made primarily of the inorganic material chitin. Which statement below accurately describes a consequence of this feature?
A. Insects must occasionally shed their exoskeleton to grow a new one.
B. The exoskeletons of insects grow along with them throughout their life span.
C. Insects can only grow as large as their hard exoskeletons allow.
D. Adult insects don't have an exoskeleton once they outgrow the one in which they were born.
Answer: A. Insects must occasionally shed their exoskeleton to grow a new one.
Explanation:
In the development process of insects from egg to adult form several intermediate stages occurs. In all immature insects the process of shedding of the skin and the exoskeleton takes place as the insect grows. The exoskeleton of the insect body does not expand as the insect grows it has to get shed and it get replaced with a new and large size exoskeleton. This allows the proper growth of the insect.
Michelle is toilet training her young daughter. The child will probably be most successful with toilet training if Michelle rewards her based on
a) spontaneous recovery
b) respondent behavior
c) a conditioned stimulus
d) successive approximaitons
Answer:
d) successive approximations
Explanation:
Answer:
Option D, Successive Approximations
Explanation:
Successive approximation are series of rewards given to an individual to positively reinforce the behavioral changes in an individual in order to motivate him /her to move towards achieving the final desired behaviour.
In case if Michelle give rewards to her daughter at each steps of the toilet training activity, then she will be inspired/motivated to do her task efficiently and faster.
Hence, option D is correct.
Which area is most likely to be the safest during a major earthquake?
Answer:
The area with loosely compacted soil is most likely to be the safest during a major earthquake.
Explanation:
Loosely compacted soil are those which are formed due to less stress that is been applied to the soil, as a result of desertification decreases in the soil density and the area whose soil is loosely compacted is the safest place during earthquakes as these areas have increased shear strength and less permeability that would protect you from earthquake as buildings constructed in these areas tends to be hard enough.
Hope it helps!
The safest place during a major earthquake is in a well-constructed earthquake-resistant building, as demonstrated in Niigata, Japan, and Japan’s strict building codes and earthquake drills.
The safest place during a major earthquake is in a well-constructed earthquake-resistant building. For example, some buildings in Niigata, Japan, constructed in the 1950s, remained structurally intact even when the city experienced a destructive earthquake in 1964. Strict building codes and earthquake drills in Japan ensure that structures can withstand seismic activity.
(NEED HELP FAST) The amount of energy required to break a nucleus into individual protons and neutrons is called
A)mass-energy equivalence
B)mass defect
C)binding energy
D)mass-energy conservation
Answer:
The answer is C
Explanation:
The amount of energy required to break a nucleus into individual protons and neutrons is called binding energy.
What is atom?
Atoms consist of a positively charged nucleus consisting of protons and neutrons surrounded by a cloud of electrons charged negatively. An atom is any particle of matter at its most basic level which contains at least one proton.
Nuclear binding energy is the energy required to separate an atomic nucleus completely into its constituent protons and neutrons, the energy that would be liberated by combining individual protons and neutrons into a single nucleus.
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Which chemical bond most likely stores the most energy?
O
A. Double carbon-carbon bond
O
B. Single carbon-carbon bond
O
C. Hydrogen-oxygen bond
O
D. Sodium-chlorine bond
At 47 months, Amalia is not only able to make circles but also able to draw a girl and label her parts, such as legs, arms, eyes, and nose. This example shows that Amalia has developed ______ motor coordination that is ________ her peers at this age.
At 47 months, Amalia is not only able to make circles but also able to draw a girl and label her parts, such as legs, arms, eyes, and nose. This example shows that Amalia has developed fine motor coordination that is typical of her peers at this age.
Answer:
The correct words would be - 1) fine, and 2) typical of.
Explanation:
Fine motor skills or coordination are the skills that suggest that involves using motor skills which is refined use of small muscles that help a child to hold something small movements in fingers and thumbs.
These fine motor skills involved writing, drawing, holding something with fingers and thumb and blinking and other activities. It is typical in the age of four approximately.
Thus, the correct answer is - 1) fine, and 2) typical of.
10. Which is an example of a chemical change?
Hello There!
A chemichal change is when the composition of the substance changes. It is a change between one or more substances and this creates new substances but it has different properties.
An example of a chemichal change could be mixing baking soda and vinegar together. When this happens, The baking soda reacts with the vinegar and this causes a new gas to be formed. "Carbon Dioxide"
Which of the following best defines matter?
A. Living things found in the universe
B. Anything that is a solid or a liquid
c. Nonliving things found on Earth and in space
D. Anything that occupies space and has mass
Matter is anything that occupies space and has mass! (D)
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~Just a girl in love with Shawn Mendes
D. Anything that Occupies space, and that contains mass.
➤ ReasonMatter is the very thing that defines "thing." Matter is anything that exists. Everything has mass, or some sort of place in space, even your thoughts that race through your head to ask this question. Mass is the amount of matter in a certain chosen area, or the amount of matter that a certain thing takes up. Everything takes up space, even if it's such a small area it may as well not exist. It's still matter.
✧ no no no i dropped my matter help╚═⋄═◇═◈═❖═✧═☆═✧═❖═◈═◇═⋄═╝a blank contains all the instructions that are needed to build an organism
Answer:
protein
Explanation:
Proteins are constructed from an organism's DNA, which the DNA makes the RNA, which makes proteins. These proteins conduct the basic functions for the organism.
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The Punnett square shows the cross for a particular trait between a homozygous dominant parent and a heterozygous parent.
What is the probability the offspring will be heterozygous for this trait?
Answer: 50% or 2/4
Explanation:
When you cross a homozygous dominant (AA) with a heterozygous (Aa) you will get 2 AA’s and 2 Aa’s
Read the article and use the information to answer the following questions
Hormones
Follicle-stimulating hormone (FSH) is produced by the .
Its role is to .
Luteinizing hormone (LH) is produced by the .
Its role is to
Answer:
anterior pituitary gland
cause the egg to mature
anterior pituitary gland
cause mature egg to be released from ovary
Explanation:
just did it myself lol
Hormones are produced by endocrine cells. Hormones like FSH is released by pituitary gland and helps in menstrual cycle control, LH also comes from pituitary gland and helps in maintaining pregnancy.
What is endocrine cell?Endocrine cells are ductless cells which release their secretion i.e., hormones directly into blood.
The hormone FSH (follicle stimulating hormone) is secreted by pituitary gland. It helps in controlling menstrual cycle and stimulation of ovaries for egg production.
The hormone LH (Luteinizing hormone) is also secreted by pituitary gland, which helps in physical development and maintaining pregnancy.
Thus, both FSH and LH are produces by pituitary gland and their functions are to control menstrual cycle and maintaining pregnancy respectively.
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Transmission electron microscope are best for viewing
A) microorganisms in pond water
B) internal organs of a mouse
C)internal structures of a cell
D) surface features of a specimen
Answer:
D
Explanation:
Answer:
option C). internal structures of a cell.'
Explanation:
a diploid human cell contain 46 chromosomes if such a cell under go mitosis then how many chromosome will be present in the daughter cells if it has just passed through telophase
Answer:
The daughter cells will have equal number of chromosomes like that of parent cell i.e. 46.
Explanation:
Mitosis is a process of division that creates two new daughter cells with same genetic material and thus equal number of chromosomes. It involves: Prophase, Metaphase, Anaphase, Telophase and at the end cytokine.
In prophase, the nuclear envelope of the cell breaks down along with chromosome condensation. In metaphase, the condensed chromosomes line up at equatorial plate. In anaphase, the sister chromatids of lined chromosomes are pulled towards the opposite poles. While in telophase the cell is ready for division, its nearly dividing stage in which the cell retains its normal structures.
Explain what would happen to the atmosphere in the absence of sunlight. Give two supporting details for your answer and use complete sentences.
Can someone help me with this please.
Answer:
In the absence of sunlight the plants which are dependent on sunlight for making food that is photosynthesis would die.
Also the people will suffer as sunlight is a good source of Vitamin D and in absence of sunlight they will not get it so easily.
Where would you most likely find water molecules?
Answer:
You will likely find it in an oxygen atom. (O2)
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Approximately 60% of human genes are also found in fruit flies. About 97.5% of human genes are also found in mice. What does this evidence suggest?
A.) Humans and mice share a more recent common ancestor than do humans and fruit flies.
B.) Mice have had more mutations and recombinations during their evolution than fruit flies.
C.) Mice and fruit flies share a more recent common ancestor with each other than with humans.
D.) Fruit flies have had more mutations and recombinations during their evolution than mice.
A
Explanation:
I believe this because there is more of a percentage with mice then fruit flies
Humans and mice share a more recent common ancestor than do humans and fruit flies, suggest about 97.5% of human genes are also found in mice, hence option A is correct.
What is the evolution of humans?According to comparisons of anatomy and genetics, scientists usually concur that, among the living animals in this category, humans are most closely related to chimpanzees.
Each and every other living thing on earth shares the same DNA as humans. They are most closely linked to chimpanzees and bonobos, with whom they share 98.7 percent of their DNA.
Additionally, they have more than 50% DNA in common with produce like bananas and insects like fruit flies.
It is assumed that the last common progenitor of humans and chimpanzees is much more recent than the last common ancestor of humans and plants.
Based on the fact that there are more similarities between humans and chimpanzees than between humans and plants.
Therefore, option A is correct.
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