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5 / 22  The stalk of a leaf is known as the ________.
A  petiole
B  lamina
C  stipule
D  rachis

Questions & Answers

Describe the process of protein sythesis?
Kizito Reply
What is a ploidy level
Francis Reply
Ploidy refers to the number of chromosomes. We have 23 pairs of chromosomes in somatic cells. Sex cells are haploid thus 23 chromosomes vs. 46 Chromosomes.
Eric
Evolution is evolvement according to one's environment. Let's use humidity as an example. A person from a very cold environment would not be used to hot humid weather. But over time their body would slowly, slowly adapt.
Eric
Give me (3) types of biodiversity
Jay
Hi guys 🇧🇪
Namutebi
hello boy
Tedi
what do you guys understand about evolution?
Kiana Reply
it's a process or analayzing some program
Fahamia
but am not sure if some know plz let share
Fahamia
is a study of
Sarah
unfolding or unrolling hence the process of development of growth
Sarah
is the periodic change of the structural features of an organism
Rahim
I think
Rahim
process of developing
Nikita
hi guiz
Mohammed
hello guys
Safuna
hi
Kaniki
why are diagrams not available
Evans Reply
How can nucleotide molecules of DNA be constructed?construct a six molecules of DNA?
Julia Reply
You take a Deoxyribose sugar. The Deoxyribose sugar has a hydrogen on the second carbon vs. an OH group. The nitrogenous base binds to the #1 Carbon and a phosphate binds to the 5'. When the 2nd NBase bonds, it does so on the 3' Carbon. Thus you have 5' to 3' directional growth.
Eric
what is the explanation of local biomes in Nigeria
Kabir
It would be savanna, tropical grassland.
Eric
describe the breathing mechanism in the body fish.
Jackson Reply
what is genetics.
Jackson
the study of hereditary
Julia
state the importance of biodiversity of organisms in an area?
Chris Reply
Let's compare The Brazilian Rain Forest to Antarctica. There many, many types of flora and fona in The Rain Forest. So many that we are still discovering them vs. the variety in Antarctica.
Eric
it boosts the ecosystem where each species has an important tole
Kizito
what is biology
Adam Reply
Biology is the study of living things.
Patrick
what are some of the branches of biology?
Jackson
anatomy,genetics,parasitology
Evans
Botany
Kizito
what is meosis
Mabatho Reply
did you mean meiosis? meiosis this is the type of cell division where one diploid parent cell produces two daughter cells that are haploid and genetically different from the parent cell.
Patrick
thankyou
Mabatho
I'm struggling to understand genetics
Mabatho
Am also struggling as well
Patrick
nothing comes on a silver platter, you need to put effort in everything you are doing not forgetting God. study as if there is no tomorrow. "Suffer now and enjoy the future"
Patrick
true bro
Patrick
exactly brother
Odhiambo
Glory to God
Patrick
Thanks Pat🙏
Mabatho
you're welcome
Patrick
what's a nervous system
tessy Reply
what's the human brain
tessy
The human brain consist of the cerebrum, cerebellum and brain stem. The cerebral cortex is composed of neuronal cell bodies, which is the gray matter. The white matter is composed of neuronal axons. The brain is the motherboard of our system.
Eric
the structure of paramecium
Charity Reply
yes
Sarah
Ho
Nevers
It is a unicellular, eukaryotic, autotrophic, organism whose movement is done by cilia.
Eric
what is codominant
Eyuel
what is endocytosis
Stephen Reply
Endocytosis is when the cell membrane surrounds and engulfs an antigen, viral particles, etc. This forms a vesicle which moves through the cytoplasm. And merges with a designated organelle.
Eric
what is the meaning of adrenocorticotropic
Abigail Reply
adrenocorticotropic is stimulating or acting on the adrenal cortex.
Belinda
ok thanks
Abigail
What is science of biology
Thando Reply
The study 📓 of leaving things
John
how does a parasite benefit from its mode of living?
Abuk Reply
why are the images n diagrams unable to be seen?
Abuk
where are the illustrations
Simon
a parasite gets protection, food, shelter
Anguson
human being
Jackson

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Source:  OpenStax, Biology. OpenStax CNX. Feb 29, 2016 Download for free at http://cnx.org/content/col11448/1.10
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