Answer:
a
Explanation:
The best explanation for the presence of vestigial pelvis and femurs in some snake and whale species is
Answer:
a common ancestor that used these structures to perform one or more specific functions
Explanation:
A vestigial structure is an organ that has no obvious function in an organism, but it has been used by a past ancestor to perform one or more specific functions. Thus, vestigial structures have been retained in the course of evolution, but they lost their ancestral functions. Vestigial structures/organs can be detrimental for the organism because it is required energy to maintain them and they may suffer diseases (e.g., cancer). Some well-known examples of vestigial organs/structures include, among others, the wings of ostriches and cormorants, the human appendix, etc.
definition of compounds
Answer:
A material made up of two or more substances.
Example: H20 2 hydrogen 1 oxygen
Explanation:
Please give me BRAINLIEST and THANKS lol <(￣︶￣)>
What process occurs when a river velocity increase and why
Answer:
Flood Erosion and Deposition: As flood waters rise, the slope of the stream as it flows to its base level (e.g., the ocean or a lake) increases. Also, as stream depth increases, the hydraulic radius increases thereby making the stream more free flowing. Both of these factors lead to an increase in stream velocity.
Consider the numbers of species known to exist on Earth, including the numbers that are being discovered and
the numbers thought to be going extinct. What do these
numbers suggest about biodiversity on Earth?
Answer:
A high diversity of species is known to exist among insects and land plants; fewer species are known to exist among vertebrates, bacteria, algae, arachnids, Protists, nematodes, mollusks and crustaceans. However, much greater diversity is estimated to exist among insects, fungi, bacteria, algae, and arachnids. Vertebrates are the best-studied organisms but are relatively less diverse than other groups.
Explanation:
Consider the numbers of species known to exist on Earth, including the numbers that are being discovered and
the numbers thought to be going extinct. What do these
numbers suggest about biodiversity on Earth?
What would happen if bees did not make it back to their hive? What is the evidence?
(No LINK)
The combining of chromosomes from genetically different gametes occurs during _____.
Answer:
fertilization
Explanation:
Water enters the atmosphere from plants through a process called
Evapor
Answer:
evaporation
Explanation:
Which of the following is a large artery that pushes oxygenated blood away from the heart to the rest of the
body?
O Pulmonary artery
O Superior Vena cava
Aorta
Pulmonary Vein
At what stage of a crisis does a person accept the reality of the situation and begin to take action?
a.first
b.second
c.third
d.fourth
Answer: b.second
Explanation:
In the second stage of crisis a person accept the reality of the situation and begin to take action. The correct option is b.
What are crisis?A condition that is extremely difficult or dangerous, when there are many problems is renowned as crisis.
There are five stages of crisis, these are:
Signal detection.Accessing, accepting and prevention.Damage containment.Recovery.Learning.Thus, the correct option is b.
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2. After Fertilization, this part of a female flower eventually becomes the fruit
A. Style
B. Petal
C. Ovary
D. Sepal
Answer:
ovary
Explanation:
After fertilization, the fertilized ovule forms the seed while the tissues of the ovary become the fruit
Pioneer species such as lichen and moss inhabit an area after a major disturbance such as a volcanic eruption. Over time, other species are found in the disturbed area and the number of pioneer species decreases. Why does the number of pioneer species decrease? The amount of available sunlight is reduced. The pioneer species can no longer thrive. ⊝ The area has more soil to support complex plants. The competition increases between organisms. ⊝ The area is more susceptible to the wind. Seeds are captured in the pioneer plants and germinate at a higher rate. ⊝ The temperature is not as extreme as it was following the disturbance. Fewer of the pioneer species reproduce. ⊝ CLEAR ALL ❮ PREVIOUS ... 3 4 5 6 7 8 9 10 11 12
Answer:
The competition increases between organisms.
Explanation:
Primary succession occurs after a disturbance or disaster that leaves open spaces with no living organisms. These new open areas are the case, for instance, of a bare rock exposed due to a retreating glacier, a volcanic activity, or an intense fire. No previous species inhabiting this area are left.
These scenarios allow new species to grow. With time, new species arrive and manage to establish again. The order of the establishment depends on the strategies of each of the species to survive.
First, pioneer species arrive. These are the first inhabitants, mostly lichens or plants with the capability of surviving in such an environment. Only a few pioneers can establish in the open space. Pioneers modify the habitat. They make it more suitable for the posterior establishment of later species, converting rock into fertile soil. As conditions get better, new species arrive like grasses. Grasses and pioneers keep modifying the ground and making it better with time. Competition becomes more frequent between species. The first species are eventually eliminated by competition, while new species keep appearing and competing for resources. Habitat modification keeps on going while new species establish. They produce shadows, alter the temperature, and humidity, fertilizing the soil, competing for resources. Competition becomes more frequent between species. This sequence continues until there is not more facilitation, and the commuting reaches a climax, becoming stable and lasting for hundreds of years until another disturbance occurs.
How do stars help us determine time? (5-6 sentences)
Answer:
The celestial poles are imaginary lines that trace the Earth's rotation axis in space. ... Because of this, constellations and stars close to the celestial poles, such as the Big Dipper, can be used to estimate time during the night.
Explanation:
Why is everyone pretending Mrs. Dodds didn't exist?
Answer:
It was a prank
Explanation:
everyone decided to prank percy and act like mrs dodds didnt exist
Find the measure of 2
116
90
26
64
Answer:
116.....................
discuss the kidney diseases and disorders
kidney is the necessary thing for each and every one .
Answer:
Explanation: 100 percent u will be percentage
As a way to reduce the number of cases of malaria, a human tropical disease, a specific DNA sequence is inserted into the reproductive cells of Anopheles mosquitoes. Which process was most likely used to alter these mosquitoes? Explain your answer
A. cloning studies
B. genetic engineering
C. natural selection
D. random mutations
Answer:
B. genetic engineering
Explanation:
ASAP!!
Write any 3 ways to protect the crop from disease and insects!!
No links!!!
No spams!!
What type of chart is used to help organize study and predict genetic inheritanc
Can you tell me if my guppys are pregnet for sure to prepare es
Answer: those guppies are definitely pregananant
Muscle cells need to quickly convert energy from molecules into a usable form. For this reason, which of the following do muscle cells have in greater number than other types of cell?
A. chromosomes
B. mitochondria
C. nuclei
D. vacuoles
Answer:
La respuesta D. vacuolas
Explanation:
How can the appearance of white baby rabbits be explained when the mother has white fur, and the father has black fur?
Answer:
white fur is dominant and the mother is WW
Explanation:
W=white fur
w=Black fur
According to Chargoff’s rule: A always bonds with _________ and G always bonds with _________.
1)A,G
2)C,T
3)G,A
4)T,C
Which of the following is an example of cross contamination? *
1 point
cutting a tomato and lettuce on the same cutting board
cutting chicken and a tomato on the same cutting board
washing the cutting board with hot water and soap before cutting each ingredient
why is it important to save energy in our daily lives
Answer:
So you can be more active and do different things that need energy
Explanation:
Having energy is an important part of daily life. Without energy, the human body would not be able to go throughout the day without being tired and without their muscles and bones hurting.
Research and Report: Draw a diagram showing how
new mutations can be added to a gene pool.
Answer:
Explanation:
Answer: I mean the instructions are pretty clear and you still ask for help?
The instructions specified by the DNA will ultimately specify the sequence of proteins. This process involves DNA, made up of ______ different nucleotides. DNA is used as a template in the synthesis of a new molecule of RNA in the process of ________________________. This process is catalyzed by RNA ________________________. RNA is then used in the process of ________________________, resulting in the synthesis of new proteins, which are made up of ______ different amino acids. In eukaryotic cells, RNA synthesis occurs in the ________________________, while protein synthesis begins in the ________________________.
Answer:
DFSRGHJK
Explanation:
4ER5TYYG6DIR6YRD 6I8YDRF Y6DMMMMMMMMMMMMY68
What is the most common type of ocean pollution?
Cigarette butts are the most common form of marine litter.
Which list describes the organization within multicellular organisms from least complex to most complex?
A,proteins, organelles, cells, organisms
B,proteins, cells, organelles, organisms
C,cells, organelles, proteins, organisms
D,organelles, cells, proteins, organisms
d
Cells, organelles, proteins, organisms describes the organization within multicellular organisms from least complex to most complex. The correct option is C.
What are multicellular organisms?Multicellular organisms include a mixture of more than one cell, with differentiating groups of cells performing specialized functions.
Early stages of development, cells in humans distinguish towards becoming nerve cells, skin cells, muscle cells, blood cells, as well as other types of cells.
All animals, land plants, and most fungi are multicellular, as are numerous algae, with the exception of slime molds and social amoebae such as the genus Dictyostelium, which are partially unicellular and partially multicellular.
Cells, organelles, proteins, and organisms describe the organization of multicellular organisms in descending order of complexity.
Thus, the correct option is C.
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PLEASE HELP!!!!
Photoperiodism is one example of how a plant responds to changing seasonal conditions. Why is it important for plants to be able to respond to seasonal changes?
Answer:
It is important because plants respond to light depend, logically enough, on the plant's ability to sense light. Phototropism is a directional response that allows plants to grow towards, or in some cases away from, a source of light. Photoperiodism is the regulation of physiology or development in response to day length.
Five-year-olds are ready for:
Preschool.
Kindergarten.
First grade.
Three-step instructions.
Storytelling.
