Answer:
Its cells have thick, hard walls.
Explanation:
Answer:
47
Explanation:
We all know that gametes like egg cell and sperm have haploid set of chromosomes but here as per this question she has produced 2 copies of chromosome 21. For the sake of maintaining haploidy, she was supposed to have only a single copy of chromosome 21 as a result of which her egg cell was supposed to have 23 chromosomes not 24.
But, this is a case of non dis-junction. Also, in a normal sperm there are no such copies of any chromosome i.e. there is a haploid set of chromosomes. It means that sperm must be having only 23 chromosomes. So we can easily infer that when the egg cell and sperm will fuse, the zygote will have 47 chromosomes (24 from egg cell and 23 from sperm).
Hello,
I think your answer may be <span>B.The drilling of fossil fuels could lead to an accident, like an oil spill, causing harm to the ocean environment. </span><span>
Im not 100% sure tho!</span>
Answer:
Fungi
Plantae
Animalia
Explanation: I just looked it up. I used alevelbiology.co.uk which is very reliable, so this should be correct.
