Answers:
thorium-234
Explaination:
Isotopes are defined as the variants of a particular chemical element obtained by radioactive decay which makes it differ in neutron number and nucleon number but have the same number of protons in each atom.
Uranium-238 produces thorium-234 by alpha decay. alpha particle is a helium nucleus which carry 2 neutrons andn 2 protons with the mass number 4. In alpha decay, nucleus emits alpha particles which tranforms or decay into an atom with a mass number 4 less and an atomic number 2 less.
The equation for alpga decay is attached below:
Hence, the isotope is thorium-234 .
Answer:
1
Explanation:
During meiosis, a diploid cell ultimately forms four haploid gametes that go on to take part in fertilization. Because they are haploid. that means they have one copy of all of the chromosomes and the genes contained within them.
First, the DNA is replicated, and then two cell divisions take place form the haploid gametes. So at first, there are two copies of each gene, creating four after the DNA is replicated.
After the first cell division (meiosis I) there are two cells with 2 copies of every gene. Then to form the haploid gamete, there is another cell division (meiosis II) creating 4 cells each containing one copy of every gene
Commensalism
Explanation:
In the rainforest, small plants called bromeliads lives on the branches of tall trees which allows them to receive sunlight for photosynthesis. They are commensals in this regard.
The interaction between the plant and the bromeliads is a commensalism.
Commensalism is a feeding relationship in which one organism derives benefit from the other without causing it harm.
- It is a positive - zero relationship in which one organism benefit and the other is not harmed.
- In mutualism, both organism derives benefits from one another.
- For parasitism, one organism derives benefit and causes harm to the other.
learn more:
Feeding interactions brainly.com/question/2321688
#learnwithBrainly
Produce antibodies against anything with a RH positive, or different blood type. Which when the antibodies attack to different blood can cause blood clots, which could be fatal.
Answer:
use "if...then...because"
Explanation:
a good way to write a hypothesis is using "if, then, because" statements because it fully explains your idea. you also need to make sure that your hypothesis is testable and realistic.
example/
Jimothy is testing if jazz music effects bee honey production. he writes this statement:
If jazz is played near a bee hive while producing honey, then the bees will produce more honey because the smooth music will raise their dopamine levels so that they become happier and therefore faster and more productive.
