Answer:
The answer should be A
Explanation:
The Carboniferous period was about the time early amphibians showed up, and they were just starting out in the water.
Answer: Amphibians
Explanation:
During the carboniferous period land animals were more diverse because the land areas grew. The four legged tetrapods began to evolve more and more.
During the carboniferous period some reptiles began to have leathery skin on their body. The amphibians usually lived in water not on land during the carboniferous period.
Hence, the correct answer is amphibians.
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.
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.
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)
Hope this helped!
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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 city installs recycling centers that take wood products. How might the
recycling centers help increase the availability of wood?
Answer:
recycling centers could plant their own trees or sponser organizations or NGOs to plant trees
Explanation:
Answer: Explanation:
Recycling wood will help the city reduce deforestation and increase availability of wood as the products obtained can be reused as a building material, recycled into mulch for landscaping or pulp for paper production and used as fuel. Recycled wood can be used as landfill for land reclamation. recover all types of uncontaminated timber.
Generally, recycling wood reduces the need to cut down trees by increasing its availability.
Select the correct answer from each drop-down menu. Because vitamins carry out various functions in the body, deficiency of different vitamins can have varied effects on the body. The primary role of vitamin D in the body is , and its deficiency may result in .
Answer:
Primary role of vitamin D is to absorb calcium. It along with calcium, helps to keep bones strong. It also help to make the bone brittle.
Deficiency of vitamin D causes the bones to lose their strength. If body does not get enough vitamin D, then absorption of calcium is lost resulting in osteoporosis in adults and rickets children.
Answer:
Because vitamins carry out various functions in the body, deficiency of different vitamins can have varied effects on the body. The primary role of vitamin D in the body is calcium absorption, and its deficiency may result in rickets.
Hope this helps :3
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 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
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.
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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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"
Albinism is an autosomal recessive condition. Which circle graph above shows the genotype probability when an albino female
mates with a male that is heterozygous for the albinism trait?
Answer choice F
Answer choice G
Answer choice H
Answer choice J
Answer:
A; Half Aa and Half aa.
Explanation:
If you make a punnett square, the two genotypes will be Aa and aa, each half.
(sorry about the messy pic)
Answer:
Answer choice F
Explanation:
Since albinism is a recessive characteristic, let's assume that it has the "aa" alleles, so an individual who does not have albinism would have the "AA" alleles if he were homozygous and "Aa" if he were heterozygous.
If an albino (aa) female were to mate with a heterozygous, non-albino (Aa) male, we could fill in a punnet squad to determine what the offspring would be like. As we can see in the punnet square attached below, the result of this crossing would be 50% offspring "Aa" and 50% offspring "aa".
The first embryophytes in the plant kingdom???
a. Algae
b. Bryophytes
c. Pteridophytes
d. Gymnosperms
The first embryophytes were bryophytes, which include mosses and liverworts. They are considered the first land plants to have the capacity to form an embryo within protective structures. However, they lack the vasculature system seen in higher-order plants.
Explanation:The first embryophytes in the plant kingdom were bryophytes. Embryophytes are land plants that include all green plants, ranging from mosses to lush green trees. The term 'embryophyte' primarily refers to plants that are capable of forming an embryo within protective structures. The first plants to evolve this ability were bryophytes, which include mosses and liverworts.
These plants don't possess a vasculature system as seen in higher-order plants (pteridophytes, gymnosperms, angiosperms), and they don't produce seeds. Bryophytes are mostly distinguished by their life cycles, characterized by dominant gametophytes stage. They reproduce via alternation of generations where the dominant phase is the haploid gametophyte, which is contrasted with the vascular plants where the sporophytes are the dominant stage.
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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.
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.
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
which is one function of a protein macromolecule?
A. Making up the code for living things
B. Providing waxy coating on leaves
C. Carrying oxygen in the blood
D. Insulating organs of the body
Answer: B. Carrying oxygen in the blood
Proteins serve various functions, including carrying oxygen in the blood through the action of hemoglobin, a protein that binds and transports oxygen.
One function of a protein macromolecule is carrying oxygen in the blood. Proteins are incredibly versatile and perform a multitude of functions in living organisms. They can be involved in structural support, regulation of cellular processes, muscle contraction, and defense against harmful substances. Specifically, in the context of blood and oxygen transport, the protein known as hemoglobin found in red blood cells is responsible for binding to oxygen and transporting it from the lungs to various parts of the body where it is needed.
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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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 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 :)
Where would you most likely find water molecules?
Answer:
You will likely find it in an oxygen atom. (O2)
hope it helps
and ur welcm
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Scientific research shows that Earth's climate is changing due to human
activities. How can scientific research on climate change help us prepare for
the future?
A. It can help us improve water conservation efforts.
B. It can help us stop storms before they occur.
C. It can help us cool down the planet before it gets too hot.
O
D. It can help us find a new way to make more water.
Answer:
C. It can help us cool down the planet before it gets too hot
Explanation:
It is a fact that the human activities are changing the atmosphere. The atmosphere is warming up naturally, bu the human activities are increasing that process, which can create lot of problems in the future. The scientists can come in very handy and helpful for this problem. The scientists are constantly trying to find new solutions that are eco-friendly, and that will minimize and eliminate the human effect on the atmosphere. Lot of new inventions have been developed, and all of them have been with the purpose to cool down, or at least leave the natural process of warming of the atmosphere, while stopping the human influence. Unfortunately, it is not the problem in the technology invented by the scientist for this problem to be solved, but it is the governments and people around the world that are not willing to implement them.
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
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
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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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.
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:
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 image shows a mountain peak in asia which force most likely created this mountain
Answer:
A) erosion
Explanation:
Answer:
The answer is compression.
Explanation:
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:
58:32
Which is the cell structure that is made of DNA that gives the master instructions for the cell?
O
centromere
chromosome
allele
gene
Save and Exit
Option B: The chromosome is the cell structure made of DNA that gives the master instructions for the cell. Chromosomes carry an organism's genetic code and are crucial for DNA replication and distribution. They ensure that each new cell receives the correct genetic information during cell division.
The structure made of DNA that gives the master instructions for the cell is the chromosome. Chromosomes are found in the nucleus of eukaryotic cells and they carry the genetic information necessary for the growth, development, and functioning of organisms.
To elaborate:
A chromosome is a long DNA molecule with part or all of the genetic material of an organism. During cell division, chromosomes ensure that DNA is accurately copied and distributed in the vast majority of cell divisions.The DNA in chromosomes contains genes, which are specific sequences of nucleotides that code for proteins and other products necessary for cellular functions.The chromosome is crucial because it organizes the DNA into manageable units, allowing for accurate replication and distribution during cell division, ensuring that each new cell receives the correct genetic instructions.For example, in humans, each cell normally contains 23 pairs of chromosomes, for a total of 46. Each parent contributes one chromosome to each pair.