why is carbon dioxide required for photosynthesis
Answer:
Carbon dioxide is necessary for photosynthesis because plants make their food only in the presence of carbon dioxide
I hope this will help you :)
A third-level consumer must be which type?
Carnivore
Herbivore
Producer
Decomposer
Answer:
i think answer is producer
Which of the following is/are true about energy? (Select all that apply)
energy is only found in fuels
energy cannot be recycled
energy is never destroyed
energy changes form
Answer:
1 is wrong. 2 is right. 3 is true. 4 is true.
Explanation:
when scientists talk about something's nature, they are talking about its
nurture
acquired traits
inherited traits
combined inherited and acquired traits
If they have a female child, what is the chance that she will be born with red-green colorblindness?
Answer:
female child - 1/200 or 0.5%
male child - 1/12 or 8.33333%
Explanation:
It's a common problem that affects around 1 in 12 men and 1 in 200 women.
Una característica de la Rosa es
Answer:
Las rosas son erguidas, trepando o arrastrando arbustos, los tallos de los cuales suelen estar copiosamente armados con motas de varias formas y tamaños, comúnmente llamados espinas. Las hojas son alternas y pinnadamente compuestas (es decir, formadas por plumas), generalmente con foliolos ovalados que están fuertemente dentados.
Explanation:
Hope it helps :)
what is the effect of Dideoxycytidine on the replication of viral DNA.
Answer:
Several 2',3'-dideoxy-3'-thiapyrimidine nucleosides were studied for their ability to inhibit hepatitis B virus (HBV) DNA replication in a HBV-transfected cell line (2.2.15). 2',3'-Dideoxy-3'-thiacytidine (SddC) and 5-fluoro-2',3'-dideoxy-3'-thiacytidine(5-FSddC) were found to be the most potent anti-HBV compounds of those examined. Both compounds resulted in nearly complete cessation of viral DNA replication at 0.5 microM, as monitored by the absence of both intracellular episomal and secreted viral DNAs. The HBV-specific RNAs were not reduced at concentrations that completely blocked HBV DNA replication, suggesting that the inhibitory target is HBV DNA synthesis. The antiviral action of SddC and 5-FSddC was reversible. The concentration of SddC and 5-FSddC required to inhibit 50% of 4-day cell growth in culture was 37 microM and more than 200 microM, respectively. Unlike 2',3'-dideoxycytidine, these two compounds do not affect mitochondrial DNA synthesis in cells at concentrations lower than that required to inhibit cell growth. In view of the potent and selective antiviral activity, both SddC and 5-FSddC should be further evaluated for the treatment of human HBV infection.
Explanation:
If we were using this pedigree chart to track a disease in a family, what would half shaded boxes represent?
A. Non-carrier of the disease
B. Carrier of the disease
Explain the four main principles of natural selection
Answer:
Reproduction: Individuals mate to produce the next generation.
Individual variation: Individuals differ in various characteristics.
Different needs: What helps one survive does not always help another.
Resource competition: There are limited resources desired by other individuals and species.
Explanation:
What Are Alleles? Where Do alleles come from?
Answer:
An allele is one of two more versions of a gene. An individual inherits two alleles for each gene,one for each parent.
Explanation:
Part-1
An allele is a variant form of a gene. Though the term allele was originally used to describe variation among genes, it now also refers to variation among non-coding DNA sequences.
For example: an allele is the gene that determines hair color.
Part-2
One allele for every gene in an organism is inherited from each of that organism's parents.
Learn more:
brainly.com/question/23660342
in your own words, write the definition for Ribosomes (what does it do and what type of RNA is it made of?)
Answer:
Ribosomes are structures made of rRNA and proteins. They are the site of protein synthesis (where mRNA and tRNA meet).
Explanation:
Some one plss HELP!!
In the cell cycle, cells frequently pause for some time before undergoing mitosis. What reasons do you think this happens?
What is the purpose of the digestive system?
1. Create energy
2. Swallow food
3. Break down food so nutrients can be absorbed
Answer:
3. Break down food so nutrients can be absorbed
Explanation:
the reasoning is when you digest something your body is breaking down the food into small chuncks so that the nutrients can be absorbed easier
Organisms of either extreme characteristic dying out while organisms with the medium characteristic have a higher fitness is identified as?
Answer: Stabilization selection
Explanation:
Natural selection involves the differential survival and growth of organisms which have suitable traits to survive in unfavorable or adverse environment. Such traits are passed on to the next generation. Stabilization selection is a type of natural selection in which the nature selects the non-extreme phenotypic traits. Middle traits are selected and such organisms grow and reproduce. Example can be given that of human babies in which babies with low weight lose more heat and babies with high weight are difficult to be delivered from the pelvis. Therefore, babies with middle weight are expected to survive more than that of low or middle weight.
what shape is a leucoplast found in
Answer:
these are colourless plastids found in the storage organs. They are found large numbers in the cells of fruits, seeds, tubers etc.
Explanation:
Answer:
They are found in the storage organs.
Explanation:
which is the method of estimating fish in a pond
Explanation:
There is a popular sampling method called capture – recapture or 'Lincoln Index' or 'Pieterson's Method' which is used to estimate the size of an animal or human population.
A 38-year-old mother of three presents to her primary care office with complaints of fatigue. She feels that her energy level has been low for the past 3 months. She was previously healthy and taking no medications. She does report that she has gained about 10 lb and has severe constipation, for which she has been taking a number of laxatives. A TSH is elevated at 25 mU/L. Free T4 is low. She is wondering why she has hypothyroidism. Which of the following tests is most likely to diagnose the etiology?
A. Antithyroid peroxidase antibody
B. Antithyroglobulin antibody
C. Radioiodine uptake scan
D. Serum thyroglobulin level
E. Thyroid ultrasound
Answer:
A. Antithyroid peroxidase antibody
Explanation:
The most common cause of hypothyroidism is autoimmune thyroiditis, also known as chronic lymphocytic thyroiditis or Hashimoto's disease. This condition (autoimmune thyroiditis) is caused by damage of the thyroid gland, which occurs when antibodies of the immune system attack this gland. The thyroid peroxidase test is an enzyme immunoassay widely used to measure the level of autoantibodies against thyroid peroxidase. Patients with chronic thyroiditis often display a positive thyroid peroxidase test. On the other hand, thyroid ultrasound is useful for the initial evaluation of painless thyroiditis in order to distinguish nodules or multinodular goiter. Antithyroid peroxidase antibodies are commonly observed in individuals suffering autoimmune thyroiditis, whereas antithyroglobulin antibodies are observed in different thyroid disorders and autoimmune diseases. Finally, a radioiodine uptake scan measures the amount of radioactive iodine accumulated in the thyroid gland, which is useful only for diagnosing early‐stage of Hashimoto's thyroiditis.
The female gametes are called__________. *
sperm
ova
Answer:
Woman's gametes are called Ova. Sperm is what a mans gamete is.
Explanation:
If fertilization occurs which hormone triggers the thickening of the endometrium
a.estrogen
b.progesterone
Answer: B. Progesterone
Explanation: trust me;)
As fast as you can, name the planets in order from the sun.
Answer:
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
Explanation:
Thenks and mark me brainliest :))
Answer: mercury, Venus, earth mars, Jupiter, Saturn, Uranus, Neptune,
and 15 years ago Pluto
Explanation: i should get extra for saying pluto
Help please I will mark brainlist!!
Answer: i think the answer c
Explanation:
A man is HH for a trait, while his wife is hh. What will their children
Explanation:
I hope what I have drawn on the picture will help you understand:)
1. In 1970, the U.S. Congress established The Environmental Protection Agency (EPA) to oversee all of the following, EXCEPT: *
A.pollution problems
B.building new nuclear power plants
C.establish new environmental policies
D.research solutions to environmental issues
Answer:
B
Explanation:
PLZ WILL BRAIN LIST
15) describe "variation at the heart of evolution"?
16) What are DNA sequences used to 17) Where is an outgroup placed on a phylogenetic tree?
Answer:
15) ans :the variation at the heart of evolution in gently variation mutation that can be passed from the one generation to the test .16) ans : DNA square stone Sing is a laboratory technique used used to determine the exact sequence of waste a c g and T in a day and molecules the DNA base carries the information on sale need to assemble protein and RNA molecules D and a second information is important to scientist investigating the function of ganes. 17) ans :Many fhyogenies Genesis also includes in out group - A taxon outside the group of interested all the members of the group of interested are more closely related to each other they they are to the out group has them out group stem from the base of the tree.____________________________ is the process in which humans chose the desired traits of an organism.
a
Artificial selection
b
Natural selection
c
Biology
d
Variation
how the animals and plants of a healthy ecosystem are organized and interact.
Answer:
A healthy ecosystem consists of native plant and animal populations interacting in balance with each other and nonliving things (for example, water and rocks). ... Decomposers break down dead plants and animals, returning vital nutrients to the soil. Plants take up these nutrients, along with water, through their roots.
Explanation:
Biology - Genetics
Click on a word in the puzzle to see the clue
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Click a word in the puzzle to get started.
Check puzzle
Answer:
what type of question it is
How are glaciations related to Earth's position in a Milankovitch cycle
Answer:
The Milankovitch Theory explains the 3 cyclical changes in Earth's orbit and tilt that cause the climate fluctuations occurring over tens of thousands of years to hundreds of thousands of years. ... When the orbit is more elliptical, glaciation is affected by the time of year (season) that Earth is closest to the sun.
Explanation:
Which earthquake wave travels the fastest and arrives first?
a) S-wave
b) tension wave
c) P-wave
d) shear wave
Answer:
C) P-wave
Explanation:
P waves travel the fastest and are the first to arrive from the earthquake. In S or shear waves, rock oscillates perpendicular to the direction of wave propagation. In rock, S waves generally travel about 60% the speed of P waves, and the S wave always arrives after the P wave.
I need a argument to: An organism has two copies of a gene for each feature.
Answer:
Since genes come in more than one version, an organism can have two of the same alleles of a gene, or two different alleles. This is important because alleles can be dominant, recessive, or codominant to each other. I hope this helps