Use of fertilizers and pesticides — it pollutes fertile soil with toxic chemicals. Fossil Fuel combustion — it releases greenhouse gases into the air. Deforestation— It makes soil more vulnerable. I hope I helped you :)
Answer:
Intrauterine insemination<u><em> IU</em></u>
Explanation:
In this scenario the required numbers of sperm are not released in the semen of the Hans needed to fertilize Sharon ovum..Therefore,a technique is needed to directly inject an healthy sperm, into her uterus to fertilised her ovum directly,the technique is IU.
It is a process which involve the selection of healthy sperm.and injected this during ovulation in the female.With this procedure,the likelihood of fertilization and pregnancy occurring is high,as the distance,time and competition with other sperm cells is reduced.This makes the procedure reliable.
It is simple technique which involves the sperm washing to get the best concentration of sperm to use, monitoring of the ovulation and optimal timing; which targets best time of ovulation,usually day 1 or day 2 after ovulation.
it is relatively less expensive.
Answer: Options A, B, C, D at correct
Explanation:
Cnidarians are a branch of invertebrates characterised by by a radially symmetric body including a saclike internal cavity and nematocysts; stinging structures that aids in feeding. They are also known as coelentrates. They are diploblastic (2 body layer). They also reproduce asexually by various mean including budding. Example include sea anemones, hydra, corals, jellyfish etc
Answer:
Option C
Explanation:
As per the Chargaff's Rule of Base Pairing, nucleotide base pairs are complementary to each other and the common formula of pairing is as follows –
A member of purine (Adenine and cytosine) group pairs with the member of pyrimidine (Thymine and guanine) group
Therefore, A always pairs with T and C pairs with G as they become structurally stable by forming hydrogen bonds
Thus, Option C is correct
Answer:
true
This is the major advantage to passive immunity; protection is immediate, whereas active immunity takes time (usually several weeks) to develop.
hope this helps:))
