Answer:
Scientists believe that Pangea broke apart for the same reason that the plates are moving today. The movement is caused by the convection currents that roll over in the upper zone of the mantle.
Explanation:
Answer: Pangea broke apart for the same reason that the plates are moving today. The movement is caused by the convection currents that roll over in the upper zone of the mantle.
Explanation: Scientists believe that Pangea broke apart for the same reason that the plates are moving today. The movement is caused by the convection currents that roll over in the upper zone of the mantle. About 200 million years ago Pangaea broke into two new continents Laurasia and Gondwanaland.
describe the meaning of the phrase "cells are the basic unit of structure in all organisms" in your own words.
Answer:
Each organism has a basic unit of structure which are cells.
Explanation:
;)
Cells are regarded as the fundamental units of life in part because they come in discrete and easily identifiable packages.
What are cells?Cells are the fundamental building blocks of all life. Trillions of cells make up the organisms' body.
They support the body's structure, absorb nutrients from food, convert those nutrients into energy, and perform specialized functions.
Nucleic acids, proteins, carbohydrates, and lipids are the four major classes of organic molecules found in all cells.
Cells are regarded as the fundamental units of life in part because they come in discrete and easily identifiable packages.
Like the walls of a house, all cells are surrounded by a structure called the cell membrane, which serves as a clear boundary between the cell's internal and external environments.
Thus, cells are the basic unit of structure of all organisms.
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What is the role of photosynthesis and cellular respiration in the cycling of carbon; include the biosphere, atmosphere hydrosphere and geosphere?
What type of organism uses energy to make its own food?
Answer:
Producers such as acacia trees and plants!
Answer:
autotroph
Explanation:
i learned this last year!
autotroph is a organism that can produce its own food using light, water, carbon dioxide, or other chemicals.Why? well because autotrophs produce their own food, they are sometimes called producers.but there are different kinds of autotrophic organisms.
hope this was helpful! ^^
6 ways of expressing standard atmospheric pressure(physical science)
6 ways of expressing standard atmospheric pressure include: millimetres (or inches) of mercury, pounds per square inch (psi), dynes per square centimetre, millibars (mb), standard atmospheres, and kilopascals.
Which of the following is true of ecological succession? A-pioneer organisms move into new communities first. B-primary productivity decreases as succession proceeds. C-secondary succession takes place within new communities with no previous soil. D-all of the above.
Answer: Pioneer organisms move into new communities first.
Explanation:
Cross two heterozygous black mice and tell the possible phenotypes and
genotypes in their offspring.
Answer:
Phenotype: 3 black mice: 1 brown mice
Genotype: 1 BB: 2Bb: 1bb
Explanation:
This question involves a single gene coding for fur color in mice. The allele for black color (B) is dominant over the allele for brown mice (b). This means that a mouse that is heterozygous will be black.
If two heterozygous black parents are crossed i.e Bb × Bb, the gametes produced by each parent are: B and b. Using these gametes in a punnet square (see attached image), the following offsprings will be produced:
BB, Bb, Bb, and bb
- The phenotypes of this cross is 3 black mice: 1 brown mice
- The genotypes of the cross is 1 BB: 2Bb: 1bb
A primary air pollutant is put directly into air by human activity.What is a secondary air pollutant
Answer:
Acid Rain
Explanation:
Acid rain, which is made up of several acidic compounds, forms when sulfur dioxide and nitrogen dioxide react in the air with water, oxygen and other chemicals. On the ground, acid rain damages plants and trees and increases the acidity levels of soils and bodies of water, causing damage to ecosystems. Acid rain also causes decay to buildings and can irritate the eyes and airways.
which of the following latin american authors is known starting a popular literary style known as magic realism?
Answer:
The answer above is false the correct option is Isabel Allende.
Explanation:
I did the quiz and it was correct.
Francis Crick stated that information moves from ______ to ______ to ______.
Answer:
The double dna to helix
Explanation:
During the late Precambrian era, enough
a
escaped from volcanoes to begin
period of
global warming.
Answer:
Eventually, enough CO2 escaped from volcanoes to begin a period of global warming; melting opened a great variety of new niches. When CO2 levels were high, they created a greenhouse effect. More heat was trapped on Earth's surface, and the climate became warmer.
Explanation:
According to the geological time scale,
mammals
evolved after the first insects evolved.
Answer:
after the evolution of insects the first four legged species or the tetrapods evolved in shallow freshwater habitats from the intermediate species approximately 397 million years ago.
Explanation:
the tetrapods went on conquering the land giving rise to amphibians, reptiles, mammals and birds.
Answer:
You are correct
Explanation:
According to the geological time scale, mammals evolved after the first insects evolved.
5. Why do thorns and spines exist? *
O To stop animals from eating plants
To stop insects from pollinating
To stop people from looking at plants
O To help plants stay standing upright and give them their shape
Answer:
to stop animals from eating plants
Explanation:
the thorns and spines help protect the plant for example if we touch the plant it hurts same goes with animals
Answer:
A. To stop animals from eating plants
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which phase of the cell cycle do cells go to when they are not ready to divide?
Answer:
Interphase
Explanation:
Answer:
interphase
Explanation:
I hope this helps!!!
clouds form by the condensation of...
A: Water vapor
B: dust or dirt
C: heat
D: rain
Answer:
a
Explanation:
clouds form when water rises as water vapor and cools and condenses into clouds
How are genetic relationships represented?
Answer:
Genetic relationships are analysed based on the comparison of allelic identity or differences, regardless of the number of SNPs that differ between two alleles of a gene, which simplifies the analysis.
Explanation:
Describe the steps to complete a dihybrid
cross.
Answer:
1. Write out your key in terms of what is dominant and what is recessive.
2. Determine the genotypes of each parent and write the cross.
3. Figure out what kind of gametes each parent may produce.
4. Set up a Punnett square for your making.
Explanation:
A dihybrid cross must be a 4 x 4 square which two variables for each square.
Discuss the bone under the following headlines: Composition, type, parts and structure.
Answer:
Explanation:
hgd
Answer:
Bones are composed of two types of tissue:
1. Compact (cortical) bone: A hard outer layer that is dense, strong, and durable. It makes up around 80 percent of adult bone mass.
2. Cancellous (trabecular or spongy) bone: This consists of a network of trabeculae or rod-like structures. It is lighter, less dense, and more flexible than compact bone.
Also found in bones:
osteoblasts and osteocytes, responsible for creating bone
osteoclasts or bone resorbing cells
osteoid, a mix of collagen and other proteins
inorganic mineral salts within the matrix
nerves and blood vessels
bone marrow
cartilage
membranes, including the endosteum and periosteum
Explanation:
3. Which tool do scientists use to classify plants that is based
on a series of paired characteristics?
observation power
dichotomous key
sketch book
plant classification
3. Which enzyme do scientists use to cut genes out of strands of DNA?
DNA polymerase
DNA ligase
restriction endonuclease
RNA polymerase
Answer:
Restriction Endonuclease.
Identify the triangle that contains an acute angle for which the sine and cosine ratios are equal.
B А
B
A
40°
450
22
60°
45°
30
50
B
B
68
A
А
50 i think
Explanation:
be cause a right angle is 90 so if the acute angle is smaller it should be a smaller number but its hard to say without an image to help us out
Sexual reproduction in animals depends on the production of gametes.
Which of these processes produces gametes in animals? *
Mitosis
Fertilization
O Meiosis
Binary fission
The process that produces gametes in animals is meiosis.
What is MeiosisMeiosis is a specialized type of cell division that occurs in the reproductive cells, or germ cells, of animals. It involves two rounds of cell division, resulting in the production of four haploid daughter cells, each with half the number of chromosomes as the parent cell.
During meiosis, the genetic material is shuffled and recombined through processes such as crossing over and independent assortment. This genetic variation contributes to the diversity of offspring produced through sexual reproduction.
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Compared with mitosis, the process of meiosis results in daughter cells that are-
A. haploid cells with the same number of chromosomes as the parent cells
B. haploid cells with a smaller number of chromosomes than the parent cells
C. diploid cells with a smaller number of chromosomes than the parent cells
D. diploid cells with the same number of chromosomes as the parent cells
Answer:
Explanation:
eAnswer: Haploid cells with a smaller number of chromosomes than the parent cell
Explanation: meiosis results in four daughter cells which are haploids. Haploids have half the number of chromosomes of the diploid parent cell.
define resolution and tissue?
Answer:
In the Resolution phase, pathogens and damaged tissue are removed by macrophages (white blood cells). Red blood cells are also removed from the damaged tissue by macrophages.
Explanation:
i hope it's helpful
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What were the different opinions of the scientists working on the project? Check all that apply.
Saving American lives had to be the priority.
The bomb was needed to force a surrender.
The United States should first demonstrate the bomb’s power before using it.
An atomic weapon should never have been created.
The use of the bomb would have no impact in the future.
Answer:
A, B, and C are the correct answer
Explanation:
Got it right on Edge2021
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Answer:
ABC
Explanation:
What was the laws of heredity
Answer:
Mendel's Laws of Heredity are usually stated as:
1) The Law of Segregation: Each inherited trait is defined by a gene pair. Parental genes are randomly separated to the sex cells so that sex cells contain only one gene of the pair. Offspring therefore inherit one genetic allele from each parent when sex cells unite in fertilization.
2) The Law of Independent Assortment: Genes for different traits are sorted separately from one another so that the inheritance of one trait is not dependent on the inheritance of another.
3) The Law of Dominance: An organism with alternate forms of a gene will express the form that is dominant.
Explanation:The genetic experiments Mendel did with pea plants took him eight years (1856-1863) and he published his results in 1865. During this time, Mendel grew over 10,000 pea plants, keeping track of progeny number and type. Mendel's work and his Laws of Inheritance were not appreciated in his time. It wasn't until 1900, after the rediscovery of his Laws, that his experimental results were understood.
Explain how the structure of a phospholipid affects the functionality of a cell membrane.
The fundamental structure of the membrane is the phospholipid bilayer , which forms a stable barrier between two aqueous compartments . ... Proteins embedded within the phospholipid bilayer carry out the specific functions of the plasma membrane , including selective transport of molecules and cell - cell recognition .
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Using the diagram below, determine which molecule in the DNA
structure attaches directly to the nitrogenous bases.
New
STRAND
TEMPLATE
STRAND
Sugar
Base
Phosphate
OH
OH
Nucleoside
triphosphate
Answer
I believe its the templlate
Explanation:
i did it
if a blue eyed offspring is formed from black eyes parents, what type of character is the blue eye dominant or recessive? expalin with the help of a chart
Answer:
Blue Eyes Are: Recessive
Explanation:
The brown eye form of the eye colour gene (or allele) is dominant, whereas the blue eye allele is recessive. If both parents have brown eyes yet carry the allele for blue eyes, a quarter of the children will have blue eyes, and three quarters will have brown eyes. I hope this helps :) Good luck on your assignment!!!