Answer: Nitrogenous base
Explanation:
Which of the following environmental factors would positively influence the survival and reproduction of only light peppered moths?
A.
A forest fire that burns down the trees.
B.
Laws that improve air quality and restrict pollution.
C.
Increasing the number of factories that burn coal into the air.
D.
A disease that infects the light peppered moths and not the dark.
Answer:
The correct answer is - option B. laws that improve air quality and restrict pollution.
Explanation:
The dark peppered moths were the adaption of the light peppered moths due to the change in the environmental condition of increased pollution that made tree bark dark in color and allows birds to easily prey on the light peppered moths.
This leads to natural selection and light moths become dark but the after Clean Air Act was that there was less pollution then there is less soot in the air, so trees were less black which result in the Light-colored moths would increase, and dark-colored moths would decrease.
scientists have discovered several species of insect that all contain the same DNA sequence on their second chromosome. What does this evidence suggest?
What is the significance of studying the history of life to the future of science?
Answer:
Studying the history of science allows you to have a glimpse into both the history of the world and into just how we discovered everything we know about the world
Explanation:
Go Deep! Look at the Parent Chromsomes and Key pictured below. Would it be possible for these parents to have a daughter with Hemophilia?
Answer: No, the daughter will be a carrier only.
Explanation: Hemophilia is a sex-linked recessive disorder. The recessive gene is carried on the X chromossome. Males have only one X chromossome, while females have 2. So, for a male individual to have hemophilia, it only needs the recessive gene to be on the X chromossome. In a female, the disorder is expressed when both X chromossomes has the recessive gene.
In the Parent Chromossomes picture shown, the father's X chromossome doesn't have the gene for hemophilia and the mother is heterozygous for the trait, i.e., she carries the recessive gene.
A daughter will inherit an X chromossome from the father and an X chromossome from the mother.
In this family, the daughter will inherit the X with dominant gene H for the father and has a possibility of inheriting another dominant gene H or recessive gene h from the mother.
For the daughter to be hemophiliac, she has to inherit 2 recessive genes. Since in either case she won't, she only inherits 1 recessive gene, the daughter will be a carrier for the trait, not have the disease.
where the photosynthesis occured
Answer:
In plants, photosynthesis takes place in chloroplasts.
Answer:
the chloroplast
Photosynthesis occurs in the chloroplast, an organelle specific to plant cells. The light reactions of photosynthesis occur in the thylakoid membranes of the chloroplast.
Explanation:
I hope this helps and pls mark me brainliest :)
If DNA read A-T-T-A-C-G-G-C-C what would the RNA read? Why is DNA replication important?
If DNA read A-T-T-A-C-G-G-C-C the RNA would be U-A-A-U-G-C-C-G-G
DNA replication is important because new cells require their own strand of the DNA. Without replication, there would be no new organisms because the DNA’s information would not be passed on.
Please help me I can’t fail please fast
Answer:
C
Explanation:
Spores are single-celled and seeds have multiple cells
Explain how the nervous system works within your body as you go throughout the day. From waking, eating, going to school, extracurricular activities, and finally bed; state how the different parts of the nervous system work together to complete these tasks.”
Answer:
when you wake up the nervous system remembers to get dressed for school as well as eating the brain remembers to pick up a fork or spoon to eat, going to school the brain will remember what time the bus will come and when to go to the bus, doing extracurricular activities the brain will tell your arm to throw a football or kick a soccer ball, when going to bed the nervous system will tell the nerves in your arms to pull the blanket on top of you and to turn the light off.
CELLS
Question
Answer
1.A cell is "the smallest unit of life".
Explain what that means in your own
words.
2. What does Unicellular mean?
3. What does Multicellular mean?
4. Give 3 examples of different cell types
(look at the pictures)
Answer:
1.its microscopic and it is the building block to every organism
2. unicellular means 1 cell or type of cell
3. Multicellular means multiple cells or types of cells
4. prokaryotic, eukaryotic?
Please do let me know if the image is too blurry to be read. Do also double click on the image as this sometimes resolves the issue.
Answer:
its too blurry
Explanation:
Is the following sentence true or false? An aquifer
can be an area that includes many states.
Which statement best describes the relationship between the bending of a ray of light and a black hole?
When light disappears, it causes a black hole to come into existence.
A ray of light has gravity that will cause a black hole to move toward it.
Gravity from a black hole will pull a ray of light and cause its path to change.
A black hole’s gravity can cause a ray of light to gain gravity and attract objects.
Answer:
number 2
Explanation:
Answer:
second option
Explanation:
How many sperm cells are formed from an original cell in a Drosophila fruit fly at the conclusion of meiosis?
O A. two haploid sperm cells
O
B. two diploid sperm cells
O C. four haploid sperm cells
D. four diploid sperm cells
Answer:
Answer: Four sperm cells.
Explanation:
Explanation: Meiosis is is a cell division process that generates four haploid cells (gametes) from a single diploid germline cell.
In the drosophila fruit fly, four haploid sperm cells are produced from a single original parent cell. The germ cells undergo meiosis to form gametes. Thus, the correct option is C.
What is Meiosis?Meiosis is the reductional division through which four daughter cells are produced from a single parent cell. The gametes are produced from meiosis. The gametes produced from a diploid cell are haploid in the number of chromosomes in cells. Both male and female gametes undergo fertilization to form diploid zygote.
Meiosis is divided into two parts- Meiosis I and Meiosis II. Both the parts comprises of four phases- Prophase, Metaphase, Anaphase, and Telophase. The chromatids undergo crossing over with non-sister chromatids to form recombination in cells.
Therefore, the correct option is C.
Learn more about Meiosis here:
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What force creates the tides?
A. Solar Flares
B. Neptune’s gravitational force
C. Sun’s gravitational force
D. Moon’s gravitational force
Answer:
D.Moon's gravitational force.
Answer:
D) Moons gravitational force
Explanation:
Gravity and inertia act in opposition on the Earth's oceans, creating tidal bulges on opposite sites of the planet. On the “near” side of the Earth (the side facing the moon), the gravitational force of the moon pulls the ocean's waters toward it, creating one bulge.
Therefore saying, the moons gravitational force.
At which latitudes do we find Earth's major deserts?
Answer: Around 30-50 degrees of latitude. This is roughly right above and below the equator.
How does nondisjunction affect the production of gametes?
Why does sexual reproduction result in offspring with genetic variation? Use the examples that you studied to support your answer.
Answer:
Sexual reproduction results in offsrping with genetic variation due to the multiplication brings about limitless prospects of hereditary variety. The examples, that can be studied to support this would be at the end of the day, sexual generation brings about posterity that are hereditarily extraordinary. They vary from the two guardians and furthermore from one another. This happens for various reasons.
Explanation:
PLEASE MARK ME AS BRAINLIEST
WIll MARK BRAINLIST PLZZ HELPN DUE IN 20 min Which are the two ways that scientists investigate the impact of limiting factors on a population? (Choose 2)
Group of answer choices
researching climate change
scientific experiments
learning about molecular bonds
observational studies
Can you explain why DNA must be replicated before mitosis and the role of helicase in DNA replication
Answer:
1. dna needs to be replicated before mitosis so that the parent cell has the same amount of genetic material as the parent cell once it has split.
2. helicase is an enzyme that is so dna can unwind.
Explanation:
the explanation is in the answer.
I hope this helps!
Answer:
DNA must be replicated before mitosis so that both identical daughter cells contain the same amount of genetic material as the parent cell once it has split in two. Helicase is an enzyme necessary at the initiation of DNA replication to unwind/unzip the DNA so that this process may begin.
Blight is a plant disease caused by a fungus that affects potato plants. Scientists are tying to develop a breed of potato plants that are resistant to blight. The development of blight-resistant potato breed might be good for the environment because the new potato breed will need
A. Less water
B. Less fertilizer
C. Less fungicide
D. Less field space
Answer lil durk a goat LLKV
Explanation:
The heavily muscled men and straining poses of Rubens's Elevation of the Cross are evidence of Rubens's emulation of which Renaissance master?
6: Salt is an ionic compound- what happens to the salt when it is dissolved in
water?
What relationship exist between amino acid and protein?
Explanation:
When connected together by series of peptide bonds, amino acids form a polypeptide, another word for protein. The polypeptide will then fold into a specific conformation depending on other interactions (dashed lines) between its amino acid side chains.
Amino acids are the subunits or monomers of proteins i.e. proteins are made up of amino acids.
WHAT ARE PROTEINS?
Proteins are one of the four major biological molecules in nature. Proteins are polymeric compounds made up of long chains of structures called AMINO ACIDS. Amino acids come together in a chemical reaction called CONDENSATION REACTION to form complex protein molecules. Each amino acid is linked to one another by a covalent bond called PEPTIDE BOND. Peptide bond is a kind of covalent bond that links two amino acids together. It forms between the amino group (-NH2) of one amino acid and carboxyl group (-COO) of anotherHence, amino acids are monomeric units of protein molecules.
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plz help. what makes the theory of evolution different from a creation myth?
Answer:
it states that we we...evolved from smaller organisms as apposed to being created from a higher being
Explanation:
can't you believe in both tho?
Explain the connection between nitrogen-fixing bacteria and the use of
fertilizer.
Answer:
They contain symbiotic rhizobia bacteria within nodules in their root systems, producing nitrogen compounds that help the plant to grow and compete with other plants. When the plant dies, the fixed nitrogen is released, making it available to other plants; this helps to fertilize the soil
1. How will photosynthesis affect the dissolved oxygen levels in the
water?
Answer:
Vegetation- riparian vegetation directly affects dissolved oxygen by releasing oxygen into the water during photosynthesis. It indirectly affects dissolved oxygen concentrations because vegetation shading a stream may decrease water temperatures, and as temperature decreases dissolved, oxygen increases.
Hope this is fine for youHow are rivers made ?
Answer:
Rivers usually begin in upland areas, when rain falls on high ground and begins to flow downhill. They always flow downhill because of gravity. They then flow across the land - meandering - or going around objects such as hills or large rocks.
Explanation:
Hope this helps!
Answer:
A river is created when water moves from higher elevation to lower elevation. It usually goes downhill, and can join with other rivers. The river ends when it flows into an ocean.
I hope this helps!
Which statement is the most accurate regarding the first stage of photosynthesis?
Answer:
1. A 2.B 3.B 4. C 5.5.
Explanation:
Please tell me what goes in the top blank, and if you could, tell me if I put the other stuff in the right blank!
Explanation:
I could but I would need to know the question is that you need to solves put the answer in the blanl
what are ionic bonds?