Answer and Explanation:
Australopithecines were a group of ancestral animals that were very similar to chimpanzees, but had common characteristics with humans, which is something normal, when we think that these animals are one of the ancestors of human beings. These animals walked on two legs, like humans, but they had very small brains and teeth that were bigger and heavier than those of humans. There were eight groups of australopithecines and they date from 8 million to 1.5 million years ago.
Among these groups, it is believed that Australopithecus afarensis is a group that has no direct ancestry with humans, being a group that did not thrive during the evolutionary process.
All cells are contained within a membrane called the:
A. Cell wall
B. Cytoplasm bilayer
C. Cytosol
D. Phospholipid bilayer
Answer:
Phospholipid bilayer
Explanation:
That is essentially the primary componenent of the cell membrane where phospholipids form two layers.
Which statement is most accurate about alternation of generations?
A. It involves changing the total number of chromosomes in a plant cell.
B. It refers to the haploid and diploid phases of the plant life cycle.
C. It refers to the processes of meiosis and fertilization.
D. It involves only some of the seedless vascular plants.
Answer:
I think no b is the ans ok
the systems involved in water content regulation are ________.
Answer:
kidneys, hypothalamus, and endocrine glands.
Explanation:
I don't think theres anything to explain rlly hope this is correct tho
The purpose of using nitrocellulose for a western blot is to a. allow the proteins to be concentrated onto the face of the nitrocellulose where they will be accessible to the primary antibody b. to allow the 4-chloro-1-naphthol to react and be visible c. allow the various proteins to migrate and separate d. bind to the primary antibody
Answer:
a. allow the proteins to be concentrated onto the face of the nitrocellulose where they will be accessible to the primary antibody
Explanation:
Skin cells are lost daily even without injury. The cell cycle responds by promoting
a. reproduction.
b. repair.
c. synthesis.
d. growth.
Answer:
The correct answer is A
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The cell cycle responds to the daily loss of skin cells skin promoting reproduction. Details about reproduction can be found below.
What is reproduction?Reproduction in biology refers to the process of making copies or duplicate of a cell.
According to this question, skin cells are lost on a daily basis even without injury.
However, the cell cycle through the process of mitosis responds to this loss by making more copies of skin cell in a process of reproduction.
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Look at the branching tree diagram below.
A slanting, horizontal line is shown. On the extreme left, there is a label that says Common Ancestor. Along the slanting, horizontal line there are five dots labeled from left to right with the following traits Four limbs, Amniotic egg, Fur, Shearing teeth, and Retractable claws. There is one vertical line between each of the consecutive five dots. The lines are labeled from left to right as Amphibians, Reptiles, Marsupials, Dogs, Cats.
Which group of organisms evolved after dogs?
Only cats
Only marsupials
Both cats and marsupials
Both amphibians and reptiles
Answer:
both cats and marsupials
Answer: Both Amphibians and Reptiles
Explanation: I took the test and got it, so.....
Explain what will happen to your eyes when..
a) you move in a very bright light.
b) you move in a dim light
Answer:
For A your pupils will shrink for B your pupils will dilate.
Answer:
When you look at something that is bright, your pupil may shrink.
When you look at something dim, your pupil may get larger.
Explanation:
I think your pupil may get larger if you look at dim light because your eye may have a hard time seeing what's going on. And the opposite may happen when you look at bright light.
what is the term for female reproductive cell ?
Answer:
female reproductive call are called ova
What are the pigments in cyanobacteria used for?
Answer:
Pigments are useful to plants and other autotrophs
Explanation:
Not sure, but hope this helped a bit
Observe and record the seeds, roots, stems, leaves, flowers of mustard and maize plants and the difference in propertiesCheck it out
Answer:
Maize is monocot and fibrous roots whereas mustard is dicot and tap roots system.
Explanation:
The main difference between maize plant and mustard plants is that Maize is a monocot plant means only one cotyledon in their seed whereas Mustard are dicot which means having two cotyledons. Maize plant has a fibrous root system whereas mustard plant has tap root system. The leaves pf maize plant have parallel venation while on the other hand, the leaves of mustard having reticulate venation. The seeds of maize is bigger in size as compared mustard seed.
At the time Hutton proposed his ideas about the age of rocks, how old was Earth believed to be by most people in Scotland?
Answer:
In the late eighteenth century, when Hutton was carefully examining the rocks, it was generally believed that Earth had come into creation only around six thousand years earlier (on October 22, 4004 B.C.
James Hutton was a Scottish naturalist and geologist who discovered the age of the earth. The earth was believed to be 6000 years old by the Scottish people.
Who was James Hutton?
James Hutton is the father of modern geology and was involved in the discovery of the earth's age and the soil formation from the parent rocks. He made his contribution to discovering the age of Earth based on his observation rather than on assumptions.
Before he discovered the earth age, it was believed by the Scottish people that the planet was six thousand years old. He discovered the process of soil formation by weathering the parent and bog rocks that accumulated as sediments over years and allowed the discovery of the planet's age.
Therefore, it is believed that the earth was 6000 years old.
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state two forces that occur when two metals meet together
Answer: repel forces and attract forces
Suppose you traveled back in time and located the first animals to have evolved feathers. You found that these animals were tree-dwelling ectotherms, able to run quickly but unable to fly. You also noticed that only males had feathers. Which hypothesis of feather evolution would these data most support? Feathers initially evolved in a role associated with ________.
Answer:
Feathers initially evolved in a role associated with sexual selection.
Explanation:
In species where only males had feathers, these feathers can be considered to have evolved into a role associated with sexual selection. This is because in these species, males used their feathers as a sexual attraction for females, in this case, females chose the males that had more attractive feathers to mate and generate new individuals for the species. An example of this can be seen in the peacock, where the tail with lush feathers is only present in males and is intended to sexually attract females.
3. What is the change in a population's allelic frequency due to chance?
natural selection
gene pool
genetic drift
allelic frequency
Answer:
option c is the answer to this question
genetic drift is the answer
What is the powerhouse of the cell called?
Mitochondria is called the powerhouse of the cell.
Hope this helps! Have a great day :)
Mitochondria are known as the “powerhouse of the cell.”
*EARTH SCIENCE CLASS*
1. Scales are used to figure out the ratio of the distance in the map to the actual distance between locations.
A. what is the name of two different types of scales found on maps?
B. how does each scale work?
Answer:
Bar and lexical.
Explanation:
Bar and lexical are the name of two different types of scales that are found on maps. Bar scales are used more frequently in the maps because they represent or show the distance ratio visually instead of in words, while on the other hand, lexical scales may be expressed in words, as a ratio, or as a fraction. Examples are 1:10,000 or 1/10,000. Using map scales is very important in the real world if you want to find out the distance you are traveling.
What is wrong with this model of the atom?
n P+
Cloud Region
A. The protons are in the wrong place.
B. The neutrons are in the wrong place.
C. The electrons are in the wrong place.
D. The protons and neutrons are in the wrong place.
Answer:
A
Explanation:
The atomic massof an element is defined as (the SUM) of masses of protons and neutrons in an atom
Kể tên các biện pháp đấu tranh sinh học. Cho ví dụ. Biện pháp đấu tranh sinh học có những ưu điểm gì?
Answer:
means translate in English . if I can help I will.
what is lcm
explain..........
Answer:
LCM= Least common multiple
Explanation:
The least common multiple, lowest common multiple, or smallest common multiple of two numbers a and b, generally represented by lcm, is the smallest positive integer divisible by both a and b in arithmetic and number theory.
For example, the LCM of 24 and 36 is 72, and The LCM of 63 and 108 is 756.
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For guinea pigs, the allele for short hair (H) is dominant to the allele for long hair (h) and the allele for white claws (C) is dominant to the allele for black claws (c). A male guinea pig is mated with a female guinea pig that is heterozygous for both aforementioned traits. Of all of the offspring have short hair and around half have black claws, what is the most probable genotype of the father
Answer:
The father most likely has HH and cc as its genotypes.
Explanation:
See the attached image, please!
16 points!
Answer:
Explanation:
From what I can see I think......
16) True
17) False
Which of the following workers is a maintenance staff member?
Genetic Code
Project: Asking Questions about the Genetic Code
Active
Instructions
Click the links to open the resources below. These resources will help you complete the assignment. Once you have created your
file(s) and are ready to upload your assignment, click the Add Files button below and select each file from your desktop or network
folder. Upload each file separately.
Answer:
Following are the steps to the given points:
Explanation:
The instructor has described the current task upload process.The teacher helped children with all resources necessary again for the task.Every learner needs to create a document to upload a project and then select a task from the folder.To add a file, a learner should click the add-on button.What makes people fight for their humanity in spite of horrendous challenges?
Answer:
They believe that they should have free will and in their mind they know that if they don`t fight then they can never feel like they belong on this earth and they would do whatever it takes to show people that they have a voice and that it should never be silenced but always be heard. People know even if there are challenges it shows that have got courage to overcome it and get to a better place in life.
Explanation:
After several miles of running and sprinting in intervals, the runner’s muscles ache and feel fatigued. Which is the best explanation for what has occurred?
a. The runner's muscles have accumulated lactic acid.
b. The runner’s body has failed to perform cellular respiration.
c. The runner’s cells are relying completely on aerobic respiration.
d. The runner’s muscles have accumulated carbon dioxide.
Answer:
The correct answer is A!
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After several miles of running and sprinting in intervals, the runner’s muscles ache and feel fatigued. The runner's muscles have accumulated lactic acid, this is best explanation.
what is the function of lactic acid ?Lactic acid is the component for the proper working of the body as It increases in concentration during exercise but does not cause muscle soreness.
Lactic acid is integral acid for different bodily function and is not solely a byproduct of exercise, has three main uses in the body:
It mainly involve in energy production mitochondria, act as a precursor for producing glucose and a signaling molecule
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In the electron transport chain
protons are pumped into the intermembrane space
water is split into oxygen and hydrogen
electrons combine with oxygen to form carbon dioxide,carbon dioxide
combines with water to form glucose
In the electron transport chain, protons are pumped into the intermembrane space.
Why ulva is not placed in kingdom plantae
Answer:
Because Ulva is an algae. Algae belongs to kingdom Protista.
Explanation:
Ulva is a Macroalgae because it's not microscopic.
Macroalgae is not considered as a plant due to their structure. Macroalgae do not have specialized organs and tissues, and they are not vascularized. They also do not have the capacity to form a structure with flowers, leaves, roots or a stem.
I need help which one is it so I can pass summer school
Answer:
the correct answer is will be option b
Explanation:
I hope this help you have a great day
Which is an example of genetic drift?
Answer:
Explanation:
Genetic drift, gene flow, mutations, and natural selection are responsible for the change in the gene pool over time. Example of genetic drift: a population of rabbits with alleles B and b, both alleles are present in equal frequencies p = 0.5 and q = 0.5 if 10 parents reproduce the probability of having an offspring with alleles B or b is 0.5; however, by chance, a slight difference in the offspring allele frequency might occur due to random sampling. As a result, in the next generation, the allele frequencies will change slightly to new frequencies by chance to become p = 0.4 and q = 0.6. in the following generations, the random sampling of alleles continues and the change in allele frequency will be greatly different from the initial 0.5 frequency due to genetic drift. Even though genetic drifting is one of the factors that participate in the evolutionary process of the genetic pool by increasing or decreasing a certain allele’s frequency, however, it does not influence the adaptation of individuals to the environment since the affected genes may be harmful or beneficial genes.
Resources:
Masel, J. (2011). Genetic drift. Current Biology, 21(20), R837-R838.
Kliman, R. M. (2016). Encyclopedia of evolutionary biology. Academic Press.
Maloy, S., & Hughes, K. (Eds.). (2013). Brenner’s Encyclopedia of Genetics. Academic Press.
Clark, M, A., Douglas, M., & Choi, J. (2018). Biology 2e. Openstax
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What is one condition that must be met for a population to be in genetic equilibrium?
Answer:
Hardy-Weinberg equilibrium
Explanation:
In order for the population's gene pool frequencies to remain constant, the Hardy-Weinberg equilibrium must be met. Random mating, no mutation, migration, or natural selection must all be present, as well as a big sample size.
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