I don’t know this pls help I’ve never learned this
Answers
Answer:
1-They have their own DNA, which is separate from the DNA found in the nucleus of the cell. 2- both organelles use their DNA to produce many proteins and enzymes required for their function. 3- A double membrane surrounds both mitochondria and chloroplasts, further evidence that each was ingested by a primitive host.
Explanation:
Related Questions
What three parts of the scientific name of a plant do you need to know and understand as an agriscientist? Why?
Inna uncovers a fossilized tooth in her backyard. What did she find?an imprint a mold fossil a cast fossil an original-remains fossil --- Choose all the answers that apply. Which of the following fossils contains actual physical remains? amber footprint bone tooth shell ----- Choose all the answers that apply. Rapid burial _____. increases exposure to oxygen decreases exposure to oxygen slows down the rate of decay prevents scavengers from eating organism remains --- Choose all the answers that apply. Which of the following conditions are necessary for fossilization? warm temperature stable geological conditions rapid burial exposure to oxygen presence of minerals -- What can fossils tell us about past species. Choose all that apply. their closest living modern relatives their extinction their potential evolution their age at death their life cycle -- Which of the following is the best evidence that an area once had a tropical climate? dinosaur fossils coral fossils fossil fuel deposits insects trapped in amber -- Dr. Sheffield discovers burrows in a sedimentary rock bed. Which of the following is the most likely conclusion? The area was once a forest. The area was once a lake. Worms once lived in the area. Dinosaurs once lived in the area. -------
Viruses, bacteria, fungi and protists can cause disease. Because of this, they are examples of what?
A pond fills with organic matter during what?
Answers
a
grazing
b
logging
c
shipping
d
agriculture
Question 2
Which of the following is a natural disaster that can have a significant impact on human populations?
a
volcano
b
all of the above
c
earthquake
d
hurricane
Answers
Question 1: Shipping
Question 2: All of the Above
B) 10
C) 100
D) 200
Answers
Answer: Option (C) is the correct answer.
Explanation:
It is known that pH is a measure of acidity or alkalinity of a solution. When pH is less than 7 then the solution is acidic in nature and when the pH is more than 7 then the solution is basic in nature.
Pure water is neutral in nature and it has a pH of 7, that is, it is neither acidic nor basic in nature.
Whereas coffee is acidic in nature as it has pH of 4 to 5 which is very acidic as compared to pure water if we go from 5 to 7 on a pH scale.
So, we can conclude that the pH of coffee is 100 times greater than the pH of pure water.
It would be 100 times greater if you are going from a pH of 5 to 7
Answers
The Punnett square shows the gamete combinations and the probabilities of producing different genotypes and phenotypes. The correct option is A.
What are the Punnett squares?
The Punnett square is a graphic representation that shows the different types of gamete combinations according to the alleles involved in a cross.
Punnett square shows the probabilities of getting offspring with different genotypes and their consequent phenotypes.
Available data:
- B allele is dominant and codes for broad leaves
- b allele is recessive and codes for narrow leaves
- Cross between BB plant and Bb plant
Cross:
Parentals) BB x Bb
Gametes) B B B b
Punnett square) B B
B BB BB
b Bb Bb
F1) Gentoype:
2/4 = 1/2 = 50% of the progeny is exprected to express the h0m0zyg0us dominant genotype, BB.
2/4 = 1/2 = 50% of the progeny is expected to express the heter0zyg0us genotype, Bb.
Phenotype
2/4 = 1/2 = 50% of the plants are exprected to have broad leaves.
2/4 = 1/2 = 50% of the plants are exprected to have narrow leaves.
The correct option is Option A, which shows the correct gametes involved in the cross and the correct gamete combinations.
You will learn more about Punnett squares at
B: Continental crust is composed of only igneous rocks
C: Ocean crust is younger
D: Continental crust is older
Answers
B) accessing food
C) obtaining oxygen
D) avoiding predators
Answers
Answer:
The answer is C
Explanation:
Because in order for it to breath well it needs to move its gills
Final answer:
White tip reef sharks pump water across their gills to obtain oxygen.
Explanation:
White tip reef sharks spend most of the day lying on the ocean floor. They pump water across their gills while remaining still, as the movement of water across their gills is necessary for obtaining oxygen. Gills in fish, including sharks, absorb oxygen from the water as it passes over them. Sharks have well-developed sense organs that aid them in locating prey, including a keen sense of smell and the ability to detect electromagnetic fields.
Electroreceptors called ampullae of Lorenzini allow sharks to detect the electromagnetic fields that are produced by all living things, including their prey. The lateral line is used to detect movement and vibration in the surrounding water, and is often considered to be functionally similar to the sense of 'hearing' in terrestrial vertebrates.
Learn more about sharks here:
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