Help. It is due today
Answer: B
Explanation: tadpoles lack limbs and possess longtails, adult frogs on the other hand have two hind limbs and two fore limbs
19. Which of the following is the best strategy to control wheat rust?
O A. Invasive insect species to attack rust
B. Fungicides to treat affected crops and planting rust-resistant varieties
C. Citrus greening to prevent the spread of rust
O D. Insulation using green roofs to limit rust
Answer:
B. Fungicides to treat affected crops and planting rust-resistant varieties
Explanation:
Leaf rust is a disease caused by the fungus Puccinia triticina which affects leaves, stems and grains in wheat and related cereals (i.e., barley and rye). This disease is known to affect crops in moist conditions. Leaf rust disease is spread through fungi spores from infected wheat plants to healthy plants. Recently, leaf rust-resistant varieties have been developed by crop improvement programs aimed at introducing leaf rust-resistant (lr) genes involved in resistance against this important crop disease. Moreover, there are different types of fungicides (e.g., Prothioconazole and Tebuconazole) used for chemical control of this disease.
Which illustration of transport across the
membrane requires energy?
Answer:
answer is on the pic
Explanation:
may be this is helpful!
Plants, algae in some bacteria use the energy of sunlight in the process of what
Answer: Photosynthesis
Explanation: takes in the carbon dioxide produced by all breathing organisms and reintroduces oxygen into the atmosphere. Photosynthesis is the process used by plants, algae and certain bacteria to harness energy from sunlight and turn it into chemical energy.
Answer:
photosynthesis
Explanation:
hope it helps. if you need an explanation on what that is let me know!
pleaseee help ASAPPP
The type of selection where the characteristics on both extremes are selected against is
Answer:
stabilizing selection
Challenge: Make another comparison.
Earth's outer layer is like
The theory of Copernicus contained six hypotheses:
The sun is at the ____ of the planets.
The Earth is ____ of the planets.
All the planets ____ around the sun.
Each planet revolves around the sun in its own ___ and at different ___.
The moon ___around the Earth.
The stars are___ part of the solar system.
(fill in the blanks)
Answer:
The sun is at the beginning of the planetThe earth is third of the planetsAll the planets orbit the sun Each planet revolves around the sun in its own direction and at different speed.The moon orbit around the earth.Answer:
The theory of Copernicus contained six hypotheses:
The sun is at the center of the planets.
The Earth is one of the planets.
All the planets orbit around the sun.
Each planet revolves around the sun in its own orbit and at different distances.
The moon orbits around the Earth.
The stars are not part of the solar system.
Explanation:
hope this helps :)
How does the hydrosphere affect the atmosphere?
Answer:
so when pure water vapor from the water bodies get absorbed into polluted gases in the atmosphere, acid rain is caused and when this happens in a place where an element of the hydrosphere is located, it is polluted.
Explanation:
From Earth’s atmosphere, where can the carbon atom go next?
4. Watson and Crick made a successful model of DNA based on
Rosalind Franklin's X-ray studies. This indicated that
DNA was
A. a triple helix with intertwined bases.
B. a double helix with bases outside the helix.
a. a double helix with bases inside the helix.
D. a single linear molecule of bases held together by
sugar-phosphate bonds.
Answer:
The right answer is the third statement.
--> A double helix with bases inside the helix.
This indicated that DNA was a double helix, with bases inside the helix. The correct option is c.
What is Watson and Crick's DNA model?Watson and Crick theorized that DNA is a double helix made up of two long helical strands twisted together.
In "Genetic Implications," Watson and Crick postulate that the replication of deoxyribonucleic acid, or DNA, may have a structural foundation. Scientists had just recently concluded that DNA contained genes, which were known to contain information that dictated an organism's identity when Watson and Crick proposed their theory of DNA replication.
In their model, each DNA strand was made up of discrete elements called bases, and the bases on one DNA strand matched the bases on the other.
Therefore, the correct option is c. a double helix with bases inside the helix.
To learn more about the DNA model, refer to the link:
https://brainly.com/question/5077600
#SPJ2
During an ice age, water is stored in glaciers.The picture below shows land area before and after an ice age.How are the land area and the oceans affected during an ice age?
Answer:
We cannot answer without a picture or description..
Which of the following reactions produces the oxygen released by photosynthesis?
Answer:
6CO2 + 6H2O → C6H12O6 + 6O2+Energy
Explanation:
This means that the reactants, six carbon dioxide molecules, and six water molecules, are converted by light energy captured by chlorophyll (implied by the arrow) into a sugar molecule and six oxygen molecules, the products.
When is carbon dioxide used during photosynthesis?
A. Light- independent reaction
B. Light-dependent reaction
C. Carbon dioxide is made, not used
Answer:
Pretty sure its b.
Explanation:
PLSSS HELP! Geologists use rock samples and_________evidence to prove what Earth's ______
is like.
Answer:
geologists use rock samples and direct evidence to prove what earth's structure is like.
Explanation:
Why does plastic flow only occur below 50 meters of ice?
A. It is cold enough below that much ice to cause plastic flow.
B. Basal slip only occurs at depths below 50 meters.
C. Fifty meters of ice can block enough sun to cause plastic flow.
D. It takes the weight of that much ice to cause the plastic flow.
Answer:
d
Explanation:
it takes the weight of that much ice to cause the plastic to flow.
Answer:
D
Explanation:
An organism is currently using light energy to make food. Based on what you have learned, this organism will be best classified as
Answer:
This organism is best classified as an autotroph.
Explanation:
Autotrophs can make their own food.
Classical biotechnology begins around 1800,
O True
False
Answer:
True
Explanation:
Mistakes are sometimes made in duplicating or transmitting genetic information. These mistakes are called
Answer:
Mutation
Explanation:
Mutation is any alteration or change in the genetic sequence of a gene caused by mutagens (substances) or mistakes during replication of genetic sequences.
A mutation occurs in the gene from time to time, although, the cell has protocols in place to put them under control if they occur. However, when DNA or a gene is being copied and transferred to offsprings, there is bound for mistakes called MUTATION to occur.
A common question you'll need to answer is "What is the relationship between the independent
variable) and (the dependent variable)?" In other words, as you change the variable that you're
testing, what is the outcome?
- So in this case, what is the relationship between time and the diameter of the trees?
HELP PLZZZZZ
Answer:
viton
Explanation:
viton
The baker mixed yeast in the dough and kept it away for the night , The next morning it had risen high up , Explain how this happened
Explanation:
Maybe this can help.
In bread making (or special yeasted cakes), the yeast organisms expel carbon dioxide as they feed off of sugars. As the dough rises and proofs, carbon dioxide is formed; this is why the dough volume increases.
Morphine 4mg IV push is ordered. The vial states 10mg/mL. How many mL will you give?
Answer:
If a vial of morphine has 10 mg/mL, and a dose of 4 mg is required to be administered intravenously, 04 mL must be administered to fulfill the indication.
Explanation:
Morphine is a drug, an opioid derivative, with a potent analgesic and sedative effect. Its use is intended for acute or chronic severe pain, mainly related to cardiovascular disease, cancer or severe trauma.
One vial of morphine vial has a concentration of 10 mg/mL, so if 4 mg is required, a simple calculation must be made:
Morphine: 10 mg ------------ 1 mL
Dose: 4 mg ------------ X
X = (4 x 1)/ 10
X = 4/10
X = 0.4 mL
To administer 4 mg of intravenous morphine, 0.4 mL of the injection should be used.
explain how water properties help get water from the roots of plants to leaves
Answer:
In order for water to move through the plant from the soil to the air (a process called transpiration), soil must be > root > stem > leaf > atmosphere. ... Because of this difference in water potential, water will move from the soil into a plant's root cells via the process of osmosis.
Explanation:
It was the big day; Lance had been training for months in anticipation of the annual “Dasher Twenty-Six-Two.” As he laced up his sneakers, he thought back to the endless grind of aerobic training he had accomplished. Hour after hour of lung-burning, quad frying jogging on pavement and dirty. He was ready mentally and physically, plus he had a secret weapon ready to go. Lance had been experimenting in the use of a thick, sugar saturated gel-nutrition to supplement his running. He anticipated finishing just before the three-hour mark and he planned to eat his special goo around hour two for a much-needed energy boost. The goo solution was a mixture of maltose, sucrose, and glucose, as well as some salt. Water would be available on the course every few miles and with his nutrition plan set he found his way to the line. *BOOM*
The start gun leaked smoke as wave after wave of runner set off. Miles started flowing by… five miles feeling good… Mile thirteen halfway there! Just as the two-hour mark was upon him, Lance pulled the gel from his pocket and slurped the gooey syrup down. Mile fifteen Phew, heavy legs… Mile eighteen Legs are burning but I got it… then came a hit of fatigue.
He had read about this before. The dreaded bonk. Bonking was said to be the final drips of glycogen being removed from the muscle’s cells, with an accompanying burn suggesting rapid production of lactate. It also meant he had spent the last two hours less aerobic than he thought. Making it to mile twenty-two, Lance noticed his heart rate ten-beats over his planned pace. His breath was getting harsher, his legs getting weaker. The mile twenty-four marker went by and he was down to nearly a walk, lips dry and stomach lurching. The last half mile was a blur as Lance crossed the line his raised arms quickly fell, and so did he, right into a chair near the finish line.
Discuss the necessity of Lance’s training to prepare for his ability to fuel a marathon with specific reference to the major organ systems involved and their purpose. Identify the needed reactants and excreted products Lance utilized during his ongoing respiring, with specific reference to where each is created or used. Finally, predict the influence of his experimental goo and suggest advantages and disadvantages to its use, as well as better use with reference to time and impact on the ability to enter and circulate to where it would be needed
If someone answers this I will believe in humanity again
______ in your DNA are responsible for determining the traits that are expressed in an organism
Answer:
Genes
Explanation:
What time period was the Pakicetus?
Explanation:
Pakicetus is an extinct genus of amphibious cetacean of the family Pakicetidae, which was endemic to Pakistan during the Eocene, about 56 to 41 million years ago.
Answer: Was found 50 million years ago during the Early Eocene Period. It was found in 1983.
Explanation:
Hope this helps
which part of the phospholipid is located on the
outside (exterior) of the cell membrane?
Answer:
Phospholipids and Biological Membranes
Which populations are least affected by density-dependent factors?
If thyroid hormones are not released, you can regulate body temperature by _____, which requires a greater use of _____.
Answer: shivering; oxygen
Explanation:
The thyroid hormones are produced by the thyroid glands and they're the triiodothyronine and the thyroxine. The thyroid hormones are required in metabolism regulation, performs digestive functions, controls the muscle of the heart, and develops the brain.
If thyroid hormones are not released, you can regulate body temperature by shivering and which requires a greater use of oxygen.
Where do these reactants enter the leaf? (be very specific)
Water (H2O) enters the plant through the…
Carbon dioxide (CO2) enters the leaf through the…
Light enters by hitting the leaf
Answer:
Explanation:
Eee