Answer:
A. True
Explanation:
The last universal common ancestor or last universal cellular ancestor (LUCA), also called the last universal ancestor (LUA), is the most recent population of organisms from which all organisms now living on Earth have a common descent—the most recent common ancestor of all current life on Earth.
Answer:
A. True
Explanation:
Yes, all life shares the same evolutionary heritage from an ancestor that appeared 3.8 billion years ago.
Choose the combination of factors that creates snow.
Answer:
Relative Humidity- Low
Air tempurature-cold
Air Pressure-low
Explanation:
High pressure, warm temperatures, and high humidity are factors that creates snow.
What are the factors that create snow?Snow and/or ice formation requires temperatures below freezing, both in the atmosphere and close to the ground.
Something that will induce the moist air to rise, forming clouds and precipitation, moisture, produces precipitation and clouds.
Water that has frozen solidly is snow, and the atmosphere (layer of gases around Earth) contains water in the form of vapor (gas). When there is a lot of vapor present, clouds develop, fill up with water droplets, and eventually begin to rain.
Therefore, when a very cold water droplet freezes onto a pollen or dust particle in the atmosphere, a snowflake starts to form.
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Explain what happens to an plant cell when it is removed from the organism and placed into a concentrated sucrose solution
Answer:
They shrink and pull away from the cell wall.The cell becomes flaccid. It is becoming plasmolyed. in a very concentrated solution, the cell undergoes full plasmolusis as the cells lose water
Answer:
They shrink and pull away from the cell wall. The cell becomes flaccid . It is becoming plasmolysed . In a very concentrated solution, the cell undergoes full plasmolysis as the cells lose more water.
hope it helps
Why is it important for us to learn about digestive system in the first place?
please help
Answer:
The liver, pancreas, and gallbladder are the solid organs of the digestive system. The hollow organs that make up the GI tract are the mouth, esophagus, stomach, small intestine, large intestine, and anus. This is a major contributing factor for our bodies being able to keep homeostasis.
in order to increase chances of survival in a changing environment, it is important for a species to have
Answer:
One key way by which species evolve over time in response to changes in environmental conditions is adaptation by natural selection acting over generations. Characteristics that aid in effective survival and reproduction in the new environment grow more prevalent, while those that do not become less prevalent.
Explanation:
this type of cell is found in females and is needed for reproduction
Answer:
egg cell
Explanation:
Gametes are an organism's reproductive cells. They are also referred to as sex cells. Female gametes are called ova or egg cells, and male gametes are called sperm. Gametes are haploid cells, and each cell carries only one copy of each chromosome.
What do you know about carbon
Answer: We have it inside of our bodies
Explanation: Biology
Answer:
Carbon (from Latin: carbo "coal") is a chemical element with the symbol C and atomic number 6.
Explanation:
Hope it's help you !!!
State two substances which will
diffuse out of a cell:
(I already know Carbon Dioxide)
Water and Oxygen.
Hope this helps; have a great day!
The growth of two plant saplings A and B, were observed for a period of 6 months. The graph shows the linear growth of the saplings, in centimeters.
After how many months will the heights of the two samplings be the same?
PLEASE HELP! WILL MARK BRANLIEST!
The amount of carbon today is the exact amount that has always been on Earth. T or F
Answer:
False
Explanation:
Every time, the amount of carbon increases depending on the population that has grown on our planet. Carbon is a chemical substance that is created by human activities which are wood, coal, natural gas, gasoline, and oil, If it is burned, Carbon dioxide is released and mixing it in the air and continuously adds for as long as they keep doing it.
Thank you! ^^
the organelle responsible for inspecting and packing protein?
mitochondria.
hope this helps!!
What do sea squirts eat?
Answer:
sea squirts eat plankton
Explanation:
Scientists are studying the mating habits of a population of butterfly fish on a Caribbean coral reef. They discover that both the largest and smallest males get the most mates and pass on the largest number of genes to the population's offspring. The largest males get a large number of mates because they can guard the females, preventing most of the smaller males from mating. However, the very smallest males also get a large number of mates because they escape the notice of the larger males and are able to mate with the females quickly. Based on these observations, which selective force appears to be acting on male body size in this population?
Answer:
The correct answer is - Disruptive selection.
Explanation:
Disruptive selection is a mode of natural selection that exhibits that two extreme values of phenotypic traits of the population are favored by this population than the population with their intermediate values. Disruptive selection occurs when there is a fitness advantage of extreme values of phenotypic traits over more intermediate phenotypes.
In this case, the largest males mates more, due to fact that they can guard the females, than smaller males. The smallest fishes also get a high number of mates as are able to mate with the females quickly without coming to the notice of larger males.
The ___ of water molecules and the hydrogen bonds between water molecules explain most of water's life-supporting properties.
The ___ of water molecules to each other helps transport water from the roots to the leaves on plants.
When water warms or cools, ____ either break or form.
Thus, water absorbs or releases a great deal of ____, helping to moderate temperatures.
Water is a versatile ____.
Blood and other biological fluids are aqueous solutions with a diversity of dissolved ______.
Answer:
The polarity of water molecules and the hydrogen bonds between water molecules explain most of water's life-supporting properties.
The cohesion of water molecules to each other helps transport water from the roots to the leaves on plants.
When water warms or cools, hydrogen bonds either break or form.
Thus, water absorbs or releases a great deal of heat, helping to moderate temperatures.
Water is a versatile solvent.
Blood and other biological fluids are aqueous solutions with a diversity of dissolved solutes.
Explanation:
The sentences presented in the question above had their various spaces complemented by the words that best fit the sentence and that were capable of forming true invormations on water.
Water is a very versatile solvent as it is capable of dissolving and mixing with various substances both liquid and solid. Furthermore, water has a great capacity to absorb or release heat, which is very useful for the entire planet, as this allows water to be very efficient in regulating temperature.
Water is formed by H2O molecules, which hold these molecules together are the hydrogen bridges formed between them. Hydrogen bridges are broken through heat, which allows the water to evaporate, but at low temperatures these bridges are strengthened and new bridges can be created, which allows the water to become solid.
The properties of water are extremely important for life on the planet and for most biological processes we know about. Among these properties we can mention polarity and cohesion as one of the most important. Polarity allows water to be a polar substance, while cohesion allows water to create an attractive relationship between molecules.
Can someone please answer these multiple choice questions. (29 to 32) Will mark as brainliest.
Questions are in the attachments I’ll give a brainlist
menstruation
it is the shedding of endometrium layer of uterus in females
it is a cycle of 28 days and menstruation occurs in first 5 days of cycle
if female is pregnant then there ia no menstruation
Answer:
mensturation
Explanation:
if the unfertilized egg pass out of the female body then mensturation occurs but if the egg fertilized with the men's sperm the fertilized egg travels through the fallopian tube to implant itself into the uterus.And finally women is considered pregnant.
What happens during interphase? (Check all that apply)
A. General Cell Processes
B. Growth
C. DNA Replication
D. Mitosis
Answer:
A. General Cell Processes
B. Growth
C. DNA Replication
Explanation:
During interphase, the cell grows and makes a copy of its DNA. During the mitotic (M) phase, the cell separates its DNA into two sets and divides its cytoplasm, forming two new cells.
During interphase, the cell grows and makes a copy of its DNA. During the mitotic (M) phase, the cell separates its DNA into two sets and divides its cytoplasm, forming two new cells. So, the option A, B and C are correct.
What do you mean by interphase?Interphase is the portion of the cell cycle that is not accompanied by visible changes under the microscope, and includes the G1, S and G2 phases. During interphase, the cell grows, replicates its DNA and prepares for mitosis.
A cell spends most of its time in what is called interphase, and during this time it grows, replicates its chromosomes, and prepares for cell division. The cell then leaves interphase, undergoes mitosis, and completes its division.
Interphase is the longest part of the cell cycle. This is when the cell grows and copies its DNA before moving into mitosis. During mitosis, chromosomes will align, separate, and move into new daughter cells.
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amoeba sisters: nature of science
Answer:
The scientific mrthod is a process used by scientists to find answers to a question or to solve a problem. No there isn't just one because there are several versions of the scientific method. Some versions have more steps, while others may have only a few. Scientists can add steps, take out steps, revise, or make models.
The scientific method is a systematic approach used by scientists to investigate and understand the natural world.
It consists of a series of steps that guide the process of conducting scientific research and acquiring knowledge.
While there is a general framework for the scientific method, it is important to note that there is no single, universally accepted version of it.
The exact steps and emphasis may vary depending on the field of study, the specific research question, and the nature of the scientific inquiry.
Different branches of science may have their own specialized methodologies and techniques.
For example, the methods used in social sciences or qualitative research can differ significantly from those used in the natural sciences.
Thus, this is all about scientific methods.
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1. Stern cells are different from other cells, as they are not specialized and can reproduce other unspecialized cells. There has been great controversy over the use of stem cells in the United States, especially when they are taken from fetal tissue. What are some possible benefits to humans of using stem cells?
plz hellllp
Answer:
Stem cell benefits:
Can repair limbs such as Arms cut off etc.
Can Repair cells and keep people from ageing
Can reduce the effect on diseases
Test new drugs for safety and how effective they are
Make people live longer and healthier lives
Explanation:
Humans aren't aware on how to harvest stem cells effectively in a way they work on humans tot heir full potential but the reasons I listed above are only the tip of the iceberg when it comes to what we can do with these.
Farmer toon soon wanted to start breeding his plants so that they are resistant to disease while producing more fruit per plant.Which plants should the farmers cross to get the desired (wanted) combination of traits
Answer:
cultivated plant variety with its wild type variety.
Explanation:
The farmer cross the cultivated plant variety to its wild type which has the characteristics of resistance against diseases. Due to crossing, the offspring produce having resistance against that disease as well as producing high yield. This type of crossing is known as artificial selection in which humans cross two organisms to get the desired characteristics in their offspring so to get a plant with resistance against disease we cross cultivated plant variety to its wild type.
4. Diagrams, tables and graphs are used by scientists mainly to
predict the independent variable
test a hypothesis
design a research plan for the experiment
organize data
Answer:
word to my dead When a long-term environmental change occurs, certain individuals in a population will be better adapted for the new environment than others. These individuals will be more likely to survive and pass on their traits to their offspring. Over many generations, these favorable adaptations build up in a population. This may lead to speciation, which is the development of a new species.
Explanation:
Why are whales closer related to giraffes than tuna?
A. Whales and giraffes are both mammals.
B. Tuna live in water but they are fish and not mammals.
C. Both of these are correct.
Answer:
Hey mate.....
Explanation:
This is ur answer.....
A. Whales and giraffes are both mammals.Hope it helps!
Brainliest pls!
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Answer:
C. Both of these are correct.
Explanation:
Whales are the artiodactyls a group of hoofed mammals that includes deer, pigs, giraffes, camels and hippos.
A species is an organism that has different traits cannot______ with other organisms.
1) breed
2) evolve
3) exist
4) survive
Answer:
2 evolve
I hope your answer is correct
GIVE BRAINLIEST!!! PPS HELPPPO
Answer:
50%
Explanation:
PLEASE HELP FAST WiLL GIVE BRAINLIEST
Answer:
C
Explanation:
C has many pores per volume than A
Which process produces genetically identical cells?
A. Meiosis
B. Mitosis
Answer:
mitosis produce genetically identical cells
Answer:
B mitosis i think .......
Help me with numbers 44 and 45
Answer:
44- object 2
45- objects 1 and 4
Explanation:
44- object 2 push force is higher one the left then on the right
45- object 1 cancel eachoher because they have the same push force as eachoher and object 4 don't move at all because they don't have any push force on either side
What are the phenotypes of an organism?
A. the organism's genes
B. the organism's physical traits
B. the organism's physical traits
hope it is helpful to you ☺️
I believe the answer to this is:
B. The organism's physical traits
Hope this helps! :D
What is the name of the supercontinent in Alfred Wegener’s continental drift hypothesis?
Answer:
Pangaea
Explanation:
Alfred Wegener proposed that the continents were once united into a single supercontinent named Pangaea, meaning all earth in ancient Greek. He suggested that Pangaea broke up long ago and that the continents then moved to their current positions. He called his hypothesis continental drift.
[tex]\sf\purple{Pangaea}[/tex] was the name of the supercontinent in Alfred Wegener’s continental drift hypothesis.
MORE:-Alfred Wegener is considered as the father of Continental Drift.This hypothesis was developed in the early part of the 20th century.Wegener proposed that the continents were once united into a single supercontinent named Pangaea. He also suggested that it broke apart long ago and the continents then moved to their current position.[tex]\large\mathfrak{{\pmb{\underline{\orange{Mystique }}{\orange{♡}}}}}[/tex]
Which of the following does NOT contribute to sea level rise?
O Melting of glacial ice sheets on Iceland and Antarctica
O Melting of mountain glaciers
O Melting of sea ice in the Arctic Ocean
O Expansion of ocean water as it warms
Answer:
D is the correct option
Explanation:
expansion of water is not significant over day night temperature
Describe how organ systems interact to get oxygen to the cells
The body's cells are supplied with oxygen and nutrients through the heart, blood, and blood vessels. Blood transports carbon dioxide to the lungs (for exhale) and picks up oxygen through the network of arteries, veins, and capillaries.
What is oxygen in the body?Our bodies require a specific amount of oxygen to function effectively since oxygen is necessary for life. When you breathe (inhale), oxygen enters your body through your mouth or nose and travels through your lungs into your bloodstream.
Oxygen inhaled by the lungs is also carried by your blood. Your body's other cells receive oxygen and nutrition from your circulatory system, which then collects any waste products they produce, including carbon dioxide, and transports them to your kidneys and lungs for elimination.
Therefore, the blood collects food nutrients from the small intestine and transports them to every cell in the body.
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