Answer:
The Rh- allele is recessive. So sally is Rh-Rh- and her husband is Rh+Rh-.
The possible genotypes for Punnet's square are: Rh+/-,Rh+/-,Rh-/-,Rh-/-
So the chance to have an Rh+ child is 50%
help would be appreciated.
Answer:
sperm, egg, zygote
Explanation:
sperm is male.
egg is female.
both are haploid(n) so they combine in a zygote(2n).
Answer:
1. sperm
2. gamete
Explanation:
sperm is the male reproductive cell and gamete us the female reproductive cell also known as sex cells
A mutation happens in the ______.
In 2006, an Ethiopian researcher announced the discovery of well-preserved 3.3 million-year-old fossil of a young female hominid. Refer to Figure (F) below. Considering the Hominid trend of evolution, choose which skull would most likely be that most primitive of the three.
Answer:
Skull three
Explanation:
the backlining is in more, and the jaw moves out more, resembeling that of a more gorilla like creature
It sounds like the description is referring to a hominid with a more pronounced facial structure, similar to that of a gorilla. This may indicate a more primitive stage of hominid evolution, as earlier hominids had more pronounced facial features and a more protruding jaw than later, more advanced hominids.
What is the basic evolutionary changes in the group mentioned ?As hominids evolved over time, their facial features became more refined, and their jaw became less protruding as they adapted to a diet that relied less on tough, fibrous vegetation and more on softer, cooked foods. This adaptation allowed for the development of a larger braincase and a more upright posture, both of which are hallmarks of later hominids such as Homo erectus and Homo sapiens.
It's worth noting that the evolution of hominids is a complex and ongoing area of research, and new discoveries and interpretations of existing evidence may change our understanding of the evolutionary timeline and the characteristics of different hominid species.
Over the course of hominid evolution, several important changes occurred that distinguish hominids from other primates. One of the earliest changes was the development of bipedalism, or the ability to walk on two legs. Bipedalism allowed hominids to free their hands for tool use and other tasks, and also facilitated the long-distance travel needed to explore new environments.
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Type of solution involved in osmosis where the concentration of water is higher on the outside of the cell than on the inside.
Use a sequence of at least four events to describe some of the ways
that water moves into, through, and then out of the atmosphere.
Please help
Explanation:
together evaporation transpiration sublimation plus volcanally emissions for almost all the water evaporate in the atmosphere that isn't inserted in human activities
Which of the following correctly indicates the order in which these events occur?
Answer:
The third one
Explanation:
Because its right
(1 point) Blood type AB is the universal donor that can donate blood to every other blood type.
True or False?
Answer:
Group AB can donate to other AB's but can receive from all others. Group B can donate red blood cells to B's and AB's.
Explanation:
ILL GIVE BRAINLEIST IF CORRECT!! PLSSS RLY NEED HELP!
what is having different functions for each type of cell known as?
cell specialization
cell colonization
cell cycle
or
cell division
Answer:
no clue
Explanation:
Most of the border of the state of Florida is where the land meets the ocean. What term is used for this?
Answer: Coast? Or peninsula
Explanation:
The oceans are primarily composed of which two elements?
Carbon and hydrogen
Calcium and silicon
Hydrogen and oxygen
Nitrogen and phosphorus
Answer:
hydrogen and oxygen snsnsn
The oceans are primarily composed of carbon and hydrogen elements.
What are elements?An element is a substance that cannot be broken down into a simpler format. They are distinguished by a unique atomic number. The elements are organized by their atomic number in the periodic table, which highlights elements with similar properties.
The six elements found in all organisms are carbon, hydrogen, nitrogen, oxygen, phosphorus, and sulfur; collectively called biological elements and shown as the acronym CHNOPS. These elements can bond with each other as well as other elements to create molecules.
Four elements—carbon (C), oxygen (O), hydrogen (H), and nitrogen (N)—make up 96% of living matter. Most of the remaining 4% of an organism's weight consists of phosphorus (P), sulfur (S), calcium (Ca), and potassium (K).
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What is the structural formula for unsaturated fatty acid?
During Earth's early history, microbial life on land contributed to the formation of soil. Soil formation, in turn, led to the evolution of land plants. Which term describes this chain of events?
Answer:
The correct answer is - nitrogen fixation.
Explanation:
In soil formation microbes play an important role as they help in providing important compounds such as nitrogen by the process of nitrogen fixation that is used by the plants.
Nitrogen-fixing organisms mostly bacteria are free-living but some live in a symbiotic relationship with plants such as Azobacter or with other organisms such as Rhizobium.
Explain a wedge and give 3 examples.
Answer: A wedge is basically an incline plane. Often portable used for many purposes
Explanation: A wedge is a double inclined plane such that the two sloping surfaces taper to form either a sharp edge or a pointed edge. For example, a knife, an axe etc.
In a few cases, the number of inclined planes used can be more than two as well. In such cases, the sloping surfaces generally taper to form either a very sharp or a pointed edge to split or pierce materials. For example, pins, nails etc.
The front end of a boat is shaped like a wedge so that it can easily cut across the flowing water.
The wedge works on the principle of an inclined plane.
The Door Stop Is an example of one,
A Knife is a very thin wedge because it slices through objects
Chisels are used to dig into stone and chip away at it to create sculptures.
Hope this helps Have a awesome day❤️The Earth ________ is a group of parts that include air, water, land, and life
Answer:
The Earth Cycle
Answer:
biosphere
Explanation:
The biosphere conists of all living things and it includes air , water , land and life.
Animals in a moist and humid environment are specifically adapted to that habitat. What contributed to the selection of these adaptations?
Answer:
Over time, adaptations offer survival advantages toward moist and humid environments. The animals with these traits survive and reproduce passing on the traits.
Explanation:
Honestly I am not sure but tell me if i helped
Answer:some adaptations offer survival advantages
Explanation:
i had the same question
If someone has a heavy weight on his or her chest, explain why after a short time it becomes difficult to breathe, even though the person’s mouth and nose are not affected
Answer:
When you breathe, air flows from your nose or mouth to your lungs, the lungs expand to allow the air in, and then they contract to remove the air from your body, then you exhale that air.
Then you can see that in the breathing process, your lungs need to expand. If you have a heavy weight on your chest, then the amount that your lungs can expand is really small, then the amount of air that they can have is smaller than normal. This is why is harder to breathe when you have a heavy weight on your chest.
Most sex-linked genes are located on:
a) the autosomes
b) the X chromosome only
c) the y chromosome only
d) both the X chromosome and the Y chromosome
Answer:
B) The X chromosomes only
What happens at the edge of plates?
Answer:
Most earthquakes occur along the edge of the oceanic and continental plates.
Explanation:
pls mark brainliest
Describe how ions water and sugar are obtained and transported through plants
Check every statement about cells that is true
A: cells come in different shapes and sizes
B: All cells perfom the same function in a
multicelular organism.
C: cells are considered the basic structural unit
D: Cells are found in every living thing
The statement that is true about cells are;
- cells come in different shapes and sizes
- cells are considered the basic structural unit
- cells are found in every living thing
- cells are not limited to only a particular size, they have various size and shapes, this is because each cell perform a specific function and as such, they tend to have a different sizes
- cells are considered the basic structural unit of all living things, both plants, and animals, they both depend on cells to survive
- cells are found in every living thing(plants and animals) they perform vital functions
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Explain how the Zika virus spreads
Answer:
The Zika virus is transmitted to people mainly by the bite of an infected Aedes species mosquito (Ae. Aegypti and Ae. Albopictus). These mosquitoes are the same mosquitoes that spread dengue and chikungunya viruses.
Explanation:
I hope this answer has helped you
Answer:
Zika virus is transmitted to people primarily through the bite of an infected Aedes species mosquito (Ae. aegypti and Ae. albopictus). These are the same mosquitoes that spread dengue and chikungunya viruses.
Explanation:
Can i have brainliest plsHow efficient are the normal commercial solar cells?
Which of the following are characteristics of life? (Choose all that apply)
1)responds to stimuli
2)regulates internal processes
3)grows and develops
3)provides energy
Answer:
All of them are characteristics of life.
The following are the characteristics of life:
1) responds to stimuli.
2) regulates internal processes.
3) grows and develops.
4) provides energy.
What do you mean by life?Life is the character of organisms that distinguish them from other physical matters. The organisms with life can perform all biological processes.
The main characteristics that make them distinguish are they can respond to any stimuli and can grow and reproduce and transfer energy and regulate internal processes. The living creatures are plants, animals, algae, protists, and fungi.
Thus, the correct options regarding life are:
1) responds to stimuli.
2) regulates internal processes.
3) grows and develops.
4) provides energy.
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does variation allow for natural selection to take place?
Answer: HOPE THIS HELPS!
Variation allows some individuals within a population to adapt to the changing environment. Because natural selection acts directly only on phenotypes, more genetic variation within a population usually enables more phenotypic variation.
Receptors are needed for which type(s) of cell signaling?
Answer:
Cell-surface receptors are involved in most of the signaling in multicellular organisms. There are three general categories of cell-surface receptors: ion channel-linked receptors, G-protein-linked receptors, and enzyme-linked receptors.
Cells contain proteins known as receptors, which bind to signaling molecules and cause a physiological response. Different receptors recognize different molecules.
What are receptors?Receptors are proteins, typically cell surface receptors, that bind to ligands and cause immune system responses.
Cells contain proteins known as receptors, which bind to signaling molecules and cause a physiological response. Different receptors recognize different molecules.
Insulin receptors bind insulin, dopamine receptors bind dopamine, nerve growth factor receptors bind nerve growth factor, and so on.
Thus, due to this, receptors are needed for cell signaling.
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Which of the following best explains why the Sun appears to move across the sky every day?
Group of answer choices
The Sun rotates on its axis
Earth rotates on its axis
The sun orbits around Earth
Earth orbits around the Sun
Answer the prelab questions below with reference to the attached class slides.
1. What is a mutation? (A. change of DNA / B. copy of DNA / C. passing of DNA / D. all listed)
2. Describe the info flow of transcription. (A. DNA --> DNA/B. DNA --> RNA / C. RNA --> protein / D.
DNA --> protein)
3. Describe the info flow of translation. (A. DNA --> DNA/B. DNA -> RNA / C. RNA --> protein / D. DNA-
-> protein)
4. Describe the info flow of expression. (A. DNA --> DNA/B. DNA --> RNA / C. RNA --> protein / D. DNA
--> protein)
5. Describe the info flow of replication. (A. DNA --> DNA/B. DNA -> RNA / C. RNA --> protein / D. DNA-
-> protein)
Answer:
1 . mutation is in a change in a DNA sequence nutrition can visit of DNA copying mistake made during cell division exposure to radiation exposure to Chemicals called motor Jeans Aur infection by viruses
A genetic engineer wants to join the following DNA fragments.
Which tool should the engineer use?
O reverse transcriptase
O DNA ligase
O gel electrophoresis
O restriction endonuclease
Answer:
To join the DNA fragments the genetic engineer must use DNA ligase.
Efforts to reduce pollution began occurring later in the century. If pollution near factories was reduced, what would happen to the color of the moths? Explain your answer.This would happen because
Answer:
moths would begin becoming lighter as the pollution is reduced
Explanation:
The color of the moths would begin becoming lighter as the pollution is reduced. This is because during the time of high amounts of pollution industrial melanism takes place and the moth's pigmentation becomes a darker tone. This is so that the moths are able to blend in better with its surroundings and survive. Pollution causes sulphur dioxide gas and dark soot deposits which have a greyish dark tone, thats why moths pigmentation turns darker. With pollution reduced moths need a lighter colored pigment to blend into lighter colored objects such as trees and leaves.
The color of the Moths will become lighter as a result of this due to the effect
pollution has on its color.
Industries and factories make use of fuel and when it is burned in generating
sets and other equipment it produces the compound known as Nitrogen
oxide.
The Nitrogen oxide has a brownish color which goes into the atmosphere
where the moths fly in thereby contact with the gas darkens the color to
shades of brown. A reduction in the discharge of the gas will lead to it
becoming lighter.
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